diff --git a/.gitignore b/.gitignore
index b0544dc..869584e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,9 +8,14 @@ test.php
 tests/data/config.yml
 tests/data/out/
 tests/data/connectionAction/config.yml
+tests/data/connectionAction/config.json
 tests/data/connectionAction/out/
 tests/data/runAction/config.yml
+tests/data/runAction/config.json
 tests/data/runAction/out/
+tests/data/getTablesAction/config.yml
+tests/data/getTablesAction/config.json
+tests/data/getTablesAction/out/
 snowflake_linux_x8664_odbc.tgz
 snowsql-linux_x86_64.bash
 snowflake-odbc-x86_64.deb
diff --git a/.travis.yml b/.travis.yml
index 8576999..059d68b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,8 +12,7 @@ install:
   - docker-compose run --rm drivers-download composer install
   - docker-compose run --rm drivers-download php driver/downloadDriver.php
   - docker-compose build app
-  - docker-compose run --rm app vendor/bin/phpcs --standard=psr2 --ignore=vendor -n .
-  - docker-compose run --rm app vendor/bin/phpunit
+  - docker-compose run --rm app
 
 script:
   - docker pull quay.io/keboola/developer-portal-cli-v2:latest
diff --git a/Dockerfile b/Dockerfile
index d105816..fe22cf3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,10 +1,11 @@
 FROM php:7.1
-MAINTAINER Erik Zigo <erik.zigo@keboola.com>
+
+ENV COMPOSER_ALLOW_SUPERUSER=1
 ENV DEBIAN_FRONTEND noninteractive
 
 # Install Dependencies
 RUN apt-get update \
-  && apt-get install unzip git unixODBC-dev libpq-dev -y
+  && apt-get install unzip git unixodbc unixodbc-dev libpq-dev -y
 
 RUN docker-php-ext-install pdo_pgsql pdo_mysql
 RUN pecl install xdebug \
diff --git a/composer.json b/composer.json
index b54d14d..f2dc02c 100644
--- a/composer.json
+++ b/composer.json
@@ -6,23 +6,22 @@
     "keywords": ["keboola", "snowflake", "db", "extractor"],
     "authors": [
         {
-            "name": "Erik Žigo",
-            "email": "erik@keboola.com"
+            "name": "Keboola",
+            "email": "devel@keboola.com"
         }
     ],
     "require": {
-        "php": ">=5.6",
-        "keboola/db-extractor-common": "~5.2",
-        "keboola/php-temp": "^0.1.6",
-        "keboola/php-csv-db-import": "~2.3.0",
-        "squizlabs/php_codesniffer": "^2.6",
-        "vkartaviy/retry": "^0.2"
+        "php": ">=7.1",
+        "keboola/db-extractor-common": "~9.1",
+        "keboola/php-temp": "^1.0",
+        "keboola/php-csv-db-import": "~2.3.0"
     },
     "require-dev": {
         "phpunit/phpunit": "4.6.*",
         "codeclimate/php-test-reporter": "^0.3",
+        "keboola/coding-standard": "^6.0",
         "keboola/storage-api-client": "^4.14",
-        "keboola/php-csv-db-import": "~2.3.0"
+        "phpstan/phpstan-shim": "^0.10"
     },
     "autoload": {
         "psr-4": {
@@ -31,7 +30,26 @@
     },
     "autoload-dev": {
         "psr-4": {
-            "Keboola\\Test\\": "tests/"
+            "Keboola\\DbExtractor\\Tests\\": "tests/"
         }
+    },
+    "scripts": {
+        "tests": "phpunit",
+        "phpstan": "phpstan analyse --no-progress --level=max -c phpstan.neon ./src ./tests",
+        "phpcs": "phpcs -n --ignore=vendor --extensions=php .",
+        "phpcbf": "phpcbf -n --ignore=vendor --extensions=php .",
+        "build": [
+            "@phpcs",
+            "@phpstan",
+            "@tests"
+        ],
+        "ci": [
+            "@composer validate --no-check-all --strict",
+            "@build"
+        ]
+    },
+    "config": {
+        "process-timeout": 0,
+        "sort-packages": true
     }
 }
diff --git a/composer.lock b/composer.lock
index 2c93f90..dfa6fe0 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,23 +1,23 @@
 {
     "_readme": [
         "This file locks the dependencies of your project to a known state",
-        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "6de760d3b2a19b7030f9868832cb96d7",
+    "content-hash": "b05532007e3541c75d25904dd83868a5",
     "packages": [
         {
             "name": "aws/aws-sdk-php",
-            "version": "3.52.13",
+            "version": "3.69.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/aws/aws-sdk-php.git",
-                "reference": "6d2f46b55a9620e41e2fc71eb9993d43ebb352c7"
+                "reference": "8e66716ee7bf6a4a4881647c6d96aa8619e82152"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/aws/aws-sdk-php/zipball/6d2f46b55a9620e41e2fc71eb9993d43ebb352c7",
-                "reference": "6d2f46b55a9620e41e2fc71eb9993d43ebb352c7",
+                "url": "https://api.github.com/repos/aws/aws-sdk-php/zipball/8e66716ee7bf6a4a4881647c6d96aa8619e82152",
+                "reference": "8e66716ee7bf6a4a4881647c6d96aa8619e82152",
                 "shasum": ""
             },
             "require": {
@@ -38,6 +38,8 @@
                 "doctrine/cache": "~1.4",
                 "ext-dom": "*",
                 "ext-openssl": "*",
+                "ext-pcntl": "*",
+                "ext-sockets": "*",
                 "nette/neon": "^2.3",
                 "phpunit/phpunit": "^4.8.35|^5.4.3",
                 "psr/cache": "^1.0"
@@ -46,7 +48,8 @@
                 "aws/aws-php-sns-message-validator": "To validate incoming SNS notifications",
                 "doctrine/cache": "To use the DoctrineCacheAdapter",
                 "ext-curl": "To send requests using cURL",
-                "ext-openssl": "Allows working with CloudFront private distributions and verifying received SNS messages"
+                "ext-openssl": "Allows working with CloudFront private distributions and verifying received SNS messages",
+                "ext-sockets": "To use client-side monitoring"
             },
             "type": "library",
             "extra": {
@@ -84,20 +87,20 @@
                 "s3",
                 "sdk"
             ],
-            "time": "2018-02-20T20:46:59+00:00"
+            "time": "2018-10-10T22:18:53+00:00"
         },
         {
             "name": "guzzlehttp/guzzle",
-            "version": "6.3.0",
+            "version": "6.3.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/guzzle/guzzle.git",
-                "reference": "f4db5a78a5ea468d4831de7f0bf9d9415e348699"
+                "reference": "407b0cb880ace85c9b63c5f9551db498cb2d50ba"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/f4db5a78a5ea468d4831de7f0bf9d9415e348699",
-                "reference": "f4db5a78a5ea468d4831de7f0bf9d9415e348699",
+                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/407b0cb880ace85c9b63c5f9551db498cb2d50ba",
+                "reference": "407b0cb880ace85c9b63c5f9551db498cb2d50ba",
                 "shasum": ""
             },
             "require": {
@@ -107,7 +110,7 @@
             },
             "require-dev": {
                 "ext-curl": "*",
-                "phpunit/phpunit": "^4.0 || ^5.0",
+                "phpunit/phpunit": "^4.8.35 || ^5.7 || ^6.4 || ^7.0",
                 "psr/log": "^1.0"
             },
             "suggest": {
@@ -116,7 +119,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "6.2-dev"
+                    "dev-master": "6.3-dev"
                 }
             },
             "autoload": {
@@ -149,7 +152,7 @@
                 "rest",
                 "web service"
             ],
-            "time": "2017-06-22T18:50:49+00:00"
+            "time": "2018-04-22T15:46:56+00:00"
         },
         {
             "name": "guzzlehttp/promises",
@@ -300,34 +303,39 @@
         },
         {
             "name": "keboola/db-extractor-common",
-            "version": "5.3.1",
+            "version": "9.1.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/keboola/db-extractor-common.git",
-                "reference": "7df4dfb44ec37cd1699bc57349d85f7d10bc9ef0"
+                "reference": "a67d229d9672158ffb349cb3c5f24029e68bc570"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/keboola/db-extractor-common/zipball/7df4dfb44ec37cd1699bc57349d85f7d10bc9ef0",
-                "reference": "7df4dfb44ec37cd1699bc57349d85f7d10bc9ef0",
+                "url": "https://api.github.com/repos/keboola/db-extractor-common/zipball/a67d229d9672158ffb349cb3c5f24029e68bc570",
+                "reference": "a67d229d9672158ffb349cb3c5f24029e68bc570",
                 "shasum": ""
             },
             "require": {
                 "keboola/csv": "^1.1",
-                "keboola/php-datatypes": "^2.0.1",
+                "keboola/php-datatypes": "^3.2",
+                "keboola/php-utils": "^2.3",
                 "keboola/ssh-tunnel": "^1.0",
                 "monolog/monolog": "^1.17",
                 "nette/utils": "^2.4",
-                "php": ">=5.6",
+                "php": ">=7.1",
                 "pimple/pimple": "^3.0",
                 "symfony/config": "^3.0",
                 "symfony/process": "^3.0",
-                "symfony/yaml": "^3.0"
+                "symfony/serializer": "^3.1",
+                "symfony/yaml": "^3.0",
+                "vkartaviy/retry": "^0.2"
             },
             "require-dev": {
+                "aws/aws-sdk-php": "^3.67",
+                "keboola/coding-standard": "^2.0",
                 "phpstan/phpstan": "^0.8",
-                "phpunit/phpunit": "4.6.*",
-                "squizlabs/php_codesniffer": "^2.6"
+                "phpunit/phpunit": "^5.0",
+                "symfony/finder": "*"
             },
             "type": "library",
             "autoload": {
@@ -336,13 +344,17 @@
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
             "authors": [
                 {
-                    "name": "Miroslav Cillik",
-                    "email": "miro@keboola.com"
+                    "name": "keboola",
+                    "email": "devel@keboola.com"
                 }
             ],
-            "time": "2018-01-29T09:58:19+00:00"
+            "description": "Common library from Keboola Database Extractors",
+            "time": "2018-09-22T12:54:02+00:00"
         },
         {
             "name": "keboola/php-csv-db-import",
@@ -377,7 +389,7 @@
             "notification-url": "https://packagist.org/downloads/",
             "authors": [
                 {
-                    "name": "Martin Halamíček",
+                    "name": "Martin Halamicek",
                     "email": "martin@keboola.com"
                 }
             ],
@@ -385,21 +397,21 @@
         },
         {
             "name": "keboola/php-datatypes",
-            "version": "2.1.0",
+            "version": "3.2.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/keboola/php-datatypes.git",
-                "reference": "4da9c61e8f711123ef3c1e041564557a79c0fcf8"
+                "reference": "f16967a5da1b67e4a9fb38b07a1b0df3e588abb8"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/keboola/php-datatypes/zipball/4da9c61e8f711123ef3c1e041564557a79c0fcf8",
-                "reference": "4da9c61e8f711123ef3c1e041564557a79c0fcf8",
+                "url": "https://api.github.com/repos/keboola/php-datatypes/zipball/f16967a5da1b67e4a9fb38b07a1b0df3e588abb8",
+                "reference": "f16967a5da1b67e4a9fb38b07a1b0df3e588abb8",
                 "shasum": ""
             },
             "require-dev": {
                 "codeclimate/php-test-reporter": "~0.4",
-                "phpstan/phpstan": "~0.6",
+                "phpstan/phpstan": "~0.9",
                 "phpunit/phpunit": "^5.0",
                 "squizlabs/php_codesniffer": "^2.6"
             },
@@ -412,24 +424,24 @@
             "notification-url": "https://packagist.org/downloads/",
             "authors": [
                 {
-                    "name": "Ondrej Hlavacek",
+                    "name": "Ondřej Hlaváček",
                     "email": "ondrej.hlavacek@keboola.com"
                 }
             ],
-            "time": "2017-05-30T16:30:33+00:00"
+            "time": "2018-08-02T15:13:46+00:00"
         },
         {
             "name": "keboola/php-temp",
-            "version": "0.1.6",
+            "version": "1.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/keboola/php-temp.git",
-                "reference": "ffe345e78ba0d35d970fc26fe2c1a36f7d20ca8c"
+                "reference": "2e3c2fc4cce8536a84cbad2a1586eb2eaebe5d3b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/keboola/php-temp/zipball/ffe345e78ba0d35d970fc26fe2c1a36f7d20ca8c",
-                "reference": "ffe345e78ba0d35d970fc26fe2c1a36f7d20ca8c",
+                "url": "https://api.github.com/repos/keboola/php-temp/zipball/2e3c2fc4cce8536a84cbad2a1586eb2eaebe5d3b",
+                "reference": "2e3c2fc4cce8536a84cbad2a1586eb2eaebe5d3b",
                 "shasum": ""
             },
             "require": {
@@ -465,7 +477,73 @@
                 "filesystem",
                 "temp"
             ],
-            "time": "2016-03-23T17:48:01+00:00"
+            "time": "2017-11-13T13:02:19+00:00"
+        },
+        {
+            "name": "keboola/php-utils",
+            "version": "2.3.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/keboola/php-utils.git",
+                "reference": "ec4d582994f2961bd16a6f6be40d3e8608ef5ec3"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/keboola/php-utils/zipball/ec4d582994f2961bd16a6f6be40d3e8608ef5ec3",
+                "reference": "ec4d582994f2961bd16a6f6be40d3e8608ef5ec3",
+                "shasum": ""
+            },
+            "require": {
+                "keboola/php-temp": "^1.0",
+                "php": ">=5.6.0",
+                "seld/jsonlint": "^1.4"
+            },
+            "require-dev": {
+                "codeclimate/php-test-reporter": "~0.2",
+                "phpunit/phpunit": "~5.0",
+                "squizlabs/php_codesniffer": "~2.4"
+            },
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "src/Keboola/Utils/jsonDecode.php",
+                    "src/Keboola/Utils/sanitizeUtf8.php",
+                    "src/Keboola/Utils/objectToArray.php",
+                    "src/Keboola/Utils/formatDateTime.php",
+                    "src/Keboola/Utils/replaceDates.php",
+                    "src/Keboola/Utils/replaceDatesInArray.php",
+                    "src/Keboola/Utils/buildUrl.php",
+                    "src/Keboola/Utils/httpBuildUrl.php",
+                    "src/Keboola/Utils/returnBytes.php",
+                    "src/Keboola/Utils/camelize.php",
+                    "src/Keboola/Utils/getDataFromPath.php",
+                    "src/Keboola/Utils/isValidDateTimeString.php",
+                    "src/Keboola/Utils/flattenArray.php",
+                    "src/Keboola/Utils/arrayToObject.php",
+                    "src/Keboola/Utils/isEmptyObject.php",
+                    "src/Keboola/Utils/stripInvalidUtf16.php",
+                    "src/Keboola/Utils/toAscii.php",
+                    "src/Keboola/Utils/sanitizeColumnName.php"
+                ],
+                "psr-0": {
+                    "Keboola\\Utils": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Keboola",
+                    "email": "devel@keboola.com"
+                }
+            ],
+            "description": "Misc utility functions",
+            "keywords": [
+                "utility"
+            ],
+            "time": "2018-04-11T14:40:53+00:00"
         },
         {
             "name": "keboola/ssh-tunnel",
@@ -499,7 +577,7 @@
             ],
             "authors": [
                 {
-                    "name": "Miroslav Cillik",
+                    "name": "Miroslav Čillík",
                     "email": "miro@keboola.com"
                 }
             ],
@@ -641,16 +719,16 @@
         },
         {
             "name": "nette/utils",
-            "version": "v2.5.1",
+            "version": "v2.5.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/nette/utils.git",
-                "reference": "8a85ce76298c8a8941f912b8fa3ee93ca17d2ebc"
+                "reference": "17b9f76f2abd0c943adfb556e56f2165460b15ce"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/nette/utils/zipball/8a85ce76298c8a8941f912b8fa3ee93ca17d2ebc",
-                "reference": "8a85ce76298c8a8941f912b8fa3ee93ca17d2ebc",
+                "url": "https://api.github.com/repos/nette/utils/zipball/17b9f76f2abd0c943adfb556e56f2165460b15ce",
+                "reference": "17b9f76f2abd0c943adfb556e56f2165460b15ce",
                 "shasum": ""
             },
             "require": {
@@ -719,7 +797,7 @@
                 "utility",
                 "validation"
             ],
-            "time": "2018-02-19T14:42:42+00:00"
+            "time": "2018-09-18T10:22:16+00:00"
         },
         {
             "name": "pimple/pimple",
@@ -918,100 +996,72 @@
             "time": "2016-10-10T12:19:37+00:00"
         },
         {
-            "name": "squizlabs/php_codesniffer",
-            "version": "2.9.1",
+            "name": "seld/jsonlint",
+            "version": "1.7.1",
             "source": {
                 "type": "git",
-                "url": "https://github.com/squizlabs/PHP_CodeSniffer.git",
-                "reference": "dcbed1074f8244661eecddfc2a675430d8d33f62"
+                "url": "https://github.com/Seldaek/jsonlint.git",
+                "reference": "d15f59a67ff805a44c50ea0516d2341740f81a38"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/squizlabs/PHP_CodeSniffer/zipball/dcbed1074f8244661eecddfc2a675430d8d33f62",
-                "reference": "dcbed1074f8244661eecddfc2a675430d8d33f62",
+                "url": "https://api.github.com/repos/Seldaek/jsonlint/zipball/d15f59a67ff805a44c50ea0516d2341740f81a38",
+                "reference": "d15f59a67ff805a44c50ea0516d2341740f81a38",
                 "shasum": ""
             },
             "require": {
-                "ext-simplexml": "*",
-                "ext-tokenizer": "*",
-                "ext-xmlwriter": "*",
-                "php": ">=5.1.2"
+                "php": "^5.3 || ^7.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "~4.0"
+                "phpunit/phpunit": "^4.8.35 || ^5.7 || ^6.0"
             },
             "bin": [
-                "scripts/phpcs",
-                "scripts/phpcbf"
+                "bin/jsonlint"
             ],
             "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "2.x-dev"
-                }
-            },
             "autoload": {
-                "classmap": [
-                    "CodeSniffer.php",
-                    "CodeSniffer/CLI.php",
-                    "CodeSniffer/Exception.php",
-                    "CodeSniffer/File.php",
-                    "CodeSniffer/Fixer.php",
-                    "CodeSniffer/Report.php",
-                    "CodeSniffer/Reporting.php",
-                    "CodeSniffer/Sniff.php",
-                    "CodeSniffer/Tokens.php",
-                    "CodeSniffer/Reports/",
-                    "CodeSniffer/Tokenizers/",
-                    "CodeSniffer/DocGenerators/",
-                    "CodeSniffer/Standards/AbstractPatternSniff.php",
-                    "CodeSniffer/Standards/AbstractScopeSniff.php",
-                    "CodeSniffer/Standards/AbstractVariableSniff.php",
-                    "CodeSniffer/Standards/IncorrectPatternException.php",
-                    "CodeSniffer/Standards/Generic/Sniffs/",
-                    "CodeSniffer/Standards/MySource/Sniffs/",
-                    "CodeSniffer/Standards/PEAR/Sniffs/",
-                    "CodeSniffer/Standards/PSR1/Sniffs/",
-                    "CodeSniffer/Standards/PSR2/Sniffs/",
-                    "CodeSniffer/Standards/Squiz/Sniffs/",
-                    "CodeSniffer/Standards/Zend/Sniffs/"
-                ]
+                "psr-4": {
+                    "Seld\\JsonLint\\": "src/Seld/JsonLint/"
+                }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
-                "BSD-3-Clause"
+                "MIT"
             ],
             "authors": [
                 {
-                    "name": "Greg Sherwood",
-                    "role": "lead"
+                    "name": "Jordi Boggiano",
+                    "email": "j.boggiano@seld.be",
+                    "homepage": "http://seld.be"
                 }
             ],
-            "description": "PHP_CodeSniffer tokenizes PHP, JavaScript and CSS files and detects violations of a defined set of coding standards.",
-            "homepage": "http://www.squizlabs.com/php-codesniffer",
+            "description": "JSON Linter",
             "keywords": [
-                "phpcs",
-                "standards"
+                "json",
+                "linter",
+                "parser",
+                "validator"
             ],
-            "time": "2017-05-22T02:43:20+00:00"
+            "time": "2018-01-24T12:46:19+00:00"
         },
         {
             "name": "symfony/config",
-            "version": "v3.4.4",
+            "version": "v3.4.17",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/config.git",
-                "reference": "72689b934d6c6ecf73eca874e98933bf055313c9"
+                "reference": "e5389132dc6320682de3643091121c048ff796b3"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/config/zipball/72689b934d6c6ecf73eca874e98933bf055313c9",
-                "reference": "72689b934d6c6ecf73eca874e98933bf055313c9",
+                "url": "https://api.github.com/repos/symfony/config/zipball/e5389132dc6320682de3643091121c048ff796b3",
+                "reference": "e5389132dc6320682de3643091121c048ff796b3",
                 "shasum": ""
             },
             "require": {
                 "php": "^5.5.9|>=7.0.8",
-                "symfony/filesystem": "~2.8|~3.0|~4.0"
+                "symfony/filesystem": "~2.8|~3.0|~4.0",
+                "symfony/polyfill-ctype": "~1.8"
             },
             "conflict": {
                 "symfony/dependency-injection": "<3.3",
@@ -1019,6 +1069,7 @@
             },
             "require-dev": {
                 "symfony/dependency-injection": "~3.3|~4.0",
+                "symfony/event-dispatcher": "~3.3|~4.0",
                 "symfony/finder": "~3.3|~4.0",
                 "symfony/yaml": "~3.0|~4.0"
             },
@@ -1055,24 +1106,25 @@
             ],
             "description": "Symfony Config Component",
             "homepage": "https://symfony.com",
-            "time": "2018-01-21T19:05:02+00:00"
+            "time": "2018-09-08T13:15:14+00:00"
         },
         {
             "name": "symfony/filesystem",
-            "version": "v3.4.4",
+            "version": "v3.4.17",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/filesystem.git",
-                "reference": "e078773ad6354af38169faf31c21df0f18ace03d"
+                "reference": "d69930fc337d767607267d57c20a7403d0a822a4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/filesystem/zipball/e078773ad6354af38169faf31c21df0f18ace03d",
-                "reference": "e078773ad6354af38169faf31c21df0f18ace03d",
+                "url": "https://api.github.com/repos/symfony/filesystem/zipball/d69930fc337d767607267d57c20a7403d0a822a4",
+                "reference": "d69930fc337d767607267d57c20a7403d0a822a4",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.5.9|>=7.0.8"
+                "php": "^5.5.9|>=7.0.8",
+                "symfony/polyfill-ctype": "~1.8"
             },
             "type": "library",
             "extra": {
@@ -1104,20 +1156,78 @@
             ],
             "description": "Symfony Filesystem Component",
             "homepage": "https://symfony.com",
-            "time": "2018-01-03T07:37:34+00:00"
+            "time": "2018-10-02T12:28:39+00:00"
+        },
+        {
+            "name": "symfony/polyfill-ctype",
+            "version": "v1.9.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-ctype.git",
+                "reference": "e3d826245268269cd66f8326bd8bc066687b4a19"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-ctype/zipball/e3d826245268269cd66f8326bd8bc066687b4a19",
+                "reference": "e3d826245268269cd66f8326bd8bc066687b4a19",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.3"
+            },
+            "suggest": {
+                "ext-ctype": "For best performance"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.9-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Ctype\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                },
+                {
+                    "name": "Gert de Pagter",
+                    "email": "BackEndTea@gmail.com"
+                }
+            ],
+            "description": "Symfony polyfill for ctype functions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "ctype",
+                "polyfill",
+                "portable"
+            ],
+            "time": "2018-08-06T14:22:27+00:00"
         },
         {
             "name": "symfony/process",
-            "version": "v3.4.4",
+            "version": "v3.4.17",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/process.git",
-                "reference": "09a5172057be8fc677840e591b17f385e58c7c0d"
+                "reference": "1dc2977afa7d70f90f3fefbcd84152813558910e"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/process/zipball/09a5172057be8fc677840e591b17f385e58c7c0d",
-                "reference": "09a5172057be8fc677840e591b17f385e58c7c0d",
+                "url": "https://api.github.com/repos/symfony/process/zipball/1dc2977afa7d70f90f3fefbcd84152813558910e",
+                "reference": "1dc2977afa7d70f90f3fefbcd84152813558910e",
                 "shasum": ""
             },
             "require": {
@@ -1153,24 +1263,104 @@
             ],
             "description": "Symfony Process Component",
             "homepage": "https://symfony.com",
-            "time": "2018-01-29T09:03:43+00:00"
+            "time": "2018-10-02T12:28:39+00:00"
+        },
+        {
+            "name": "symfony/serializer",
+            "version": "v3.4.17",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/serializer.git",
+                "reference": "8bc00ef47a428bfebc4641f29d158e7c56137fcb"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/serializer/zipball/8bc00ef47a428bfebc4641f29d158e7c56137fcb",
+                "reference": "8bc00ef47a428bfebc4641f29d158e7c56137fcb",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^5.5.9|>=7.0.8",
+                "symfony/polyfill-ctype": "~1.8"
+            },
+            "conflict": {
+                "phpdocumentor/type-resolver": "<0.2.1",
+                "symfony/dependency-injection": "<3.2",
+                "symfony/property-access": ">=3.0,<3.0.4|>=2.8,<2.8.4",
+                "symfony/property-info": "<3.1",
+                "symfony/yaml": "<3.4"
+            },
+            "require-dev": {
+                "doctrine/annotations": "~1.0",
+                "doctrine/cache": "~1.0",
+                "phpdocumentor/reflection-docblock": "^3.0|^4.0",
+                "symfony/cache": "~3.1|~4.0",
+                "symfony/config": "~2.8|~3.0|~4.0",
+                "symfony/dependency-injection": "~3.2|~4.0",
+                "symfony/http-foundation": "~2.8|~3.0|~4.0",
+                "symfony/property-access": "~2.8|~3.0|~4.0",
+                "symfony/property-info": "~3.1|~4.0",
+                "symfony/yaml": "~3.4|~4.0"
+            },
+            "suggest": {
+                "doctrine/annotations": "For using the annotation mapping. You will also need doctrine/cache.",
+                "doctrine/cache": "For using the default cached annotation reader and metadata cache.",
+                "psr/cache-implementation": "For using the metadata cache.",
+                "symfony/config": "For using the XML mapping loader.",
+                "symfony/http-foundation": "To use the DataUriNormalizer.",
+                "symfony/property-access": "For using the ObjectNormalizer.",
+                "symfony/property-info": "To deserialize relations.",
+                "symfony/yaml": "For using the default YAML mapping loader."
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "3.4-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Component\\Serializer\\": ""
+                },
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony Serializer Component",
+            "homepage": "https://symfony.com",
+            "time": "2018-10-02T12:28:39+00:00"
         },
         {
             "name": "symfony/yaml",
-            "version": "v3.4.4",
+            "version": "v3.4.17",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/yaml.git",
-                "reference": "eab73b6c21d27ae4cd037c417618dfd4befb0bfe"
+                "reference": "640b6c27fed4066d64b64d5903a86043f4a4de7f"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/yaml/zipball/eab73b6c21d27ae4cd037c417618dfd4befb0bfe",
-                "reference": "eab73b6c21d27ae4cd037c417618dfd4befb0bfe",
+                "url": "https://api.github.com/repos/symfony/yaml/zipball/640b6c27fed4066d64b64d5903a86043f4a4de7f",
+                "reference": "640b6c27fed4066d64b64d5903a86043f4a4de7f",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.5.9|>=7.0.8"
+                "php": "^5.5.9|>=7.0.8",
+                "symfony/polyfill-ctype": "~1.8"
             },
             "conflict": {
                 "symfony/console": "<3.4"
@@ -1211,20 +1401,20 @@
             ],
             "description": "Symfony Yaml Component",
             "homepage": "https://symfony.com",
-            "time": "2018-01-21T19:05:02+00:00"
+            "time": "2018-10-02T16:33:53+00:00"
         },
         {
             "name": "tracy/tracy",
-            "version": "v2.4.11",
+            "version": "v2.5.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/nette/tracy.git",
-                "reference": "bcb93a9d4347be8779c83b200b64ea6f52d6f9ed"
+                "reference": "7f670b08a7f4ed0243373f9d003d139196273861"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/nette/tracy/zipball/bcb93a9d4347be8779c83b200b64ea6f52d6f9ed",
-                "reference": "bcb93a9d4347be8779c83b200b64ea6f52d6f9ed",
+                "url": "https://api.github.com/repos/nette/tracy/zipball/7f670b08a7f4ed0243373f9d003d139196273861",
+                "reference": "7f670b08a7f4ed0243373f9d003d139196273861",
                 "shasum": ""
             },
             "require": {
@@ -1234,7 +1424,8 @@
             },
             "require-dev": {
                 "nette/di": "~2.3",
-                "nette/tester": "~1.7"
+                "nette/tester": "~1.7",
+                "nette/utils": "~2.3"
             },
             "suggest": {
                 "https://nette.org/donate": "Please support Tracy via a donation"
@@ -1242,7 +1433,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.4-dev"
+                    "dev-master": "2.5-dev"
                 }
             },
             "autoload": {
@@ -1276,7 +1467,7 @@
                 "nette",
                 "profiler"
             ],
-            "time": "2018-02-01T18:11:38+00:00"
+            "time": "2018-09-24T22:35:07+00:00"
         },
         {
             "name": "vkartaviy/retry",
@@ -1387,32 +1578,32 @@
         },
         {
             "name": "doctrine/instantiator",
-            "version": "1.0.5",
+            "version": "1.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/doctrine/instantiator.git",
-                "reference": "8e884e78f9f0eb1329e445619e04456e64d8051d"
+                "reference": "185b8868aa9bf7159f5f953ed5afb2d7fcdc3bda"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/doctrine/instantiator/zipball/8e884e78f9f0eb1329e445619e04456e64d8051d",
-                "reference": "8e884e78f9f0eb1329e445619e04456e64d8051d",
+                "url": "https://api.github.com/repos/doctrine/instantiator/zipball/185b8868aa9bf7159f5f953ed5afb2d7fcdc3bda",
+                "reference": "185b8868aa9bf7159f5f953ed5afb2d7fcdc3bda",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3,<8.0-DEV"
+                "php": "^7.1"
             },
             "require-dev": {
                 "athletic/athletic": "~0.1.8",
                 "ext-pdo": "*",
                 "ext-phar": "*",
-                "phpunit/phpunit": "~4.0",
-                "squizlabs/php_codesniffer": "~2.0"
+                "phpunit/phpunit": "^6.2.3",
+                "squizlabs/php_codesniffer": "^3.0.2"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.0.x-dev"
+                    "dev-master": "1.2.x-dev"
                 }
             },
             "autoload": {
@@ -1437,7 +1628,7 @@
                 "constructor",
                 "instantiate"
             ],
-            "time": "2015-06-14T21:17:01+00:00"
+            "time": "2017-07-22T11:58:36+00:00"
         },
         {
             "name": "guzzle/guzzle",
@@ -1535,6 +1726,32 @@
             "abandoned": "guzzlehttp/guzzle",
             "time": "2015-03-18T18:23:50+00:00"
         },
+        {
+            "name": "keboola/coding-standard",
+            "version": "6.0.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/keboola/phpcs-standard.git",
+                "reference": "4c247e4ecf8f9c134efc6b7efe30593923415655"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/keboola/phpcs-standard/zipball/4c247e4ecf8f9c134efc6b7efe30593923415655",
+                "reference": "4c247e4ecf8f9c134efc6b7efe30593923415655",
+                "shasum": ""
+            },
+            "require": {
+                "slevomat/coding-standard": "4.4.6",
+                "squizlabs/php_codesniffer": "^3.2"
+            },
+            "type": "phpcodesniffer-standard",
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "description": "Keboola coding standard",
+            "time": "2018-09-03T10:12:38+00:00"
+        },
         {
             "name": "keboola/storage-api-client",
             "version": "4.20.1",
@@ -1634,29 +1851,35 @@
         },
         {
             "name": "phpdocumentor/reflection-docblock",
-            "version": "3.3.2",
+            "version": "4.3.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpDocumentor/ReflectionDocBlock.git",
-                "reference": "bf329f6c1aadea3299f08ee804682b7c45b326a2"
+                "reference": "94fd0001232e47129dd3504189fa1c7225010d08"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpDocumentor/ReflectionDocBlock/zipball/bf329f6c1aadea3299f08ee804682b7c45b326a2",
-                "reference": "bf329f6c1aadea3299f08ee804682b7c45b326a2",
+                "url": "https://api.github.com/repos/phpDocumentor/ReflectionDocBlock/zipball/94fd0001232e47129dd3504189fa1c7225010d08",
+                "reference": "94fd0001232e47129dd3504189fa1c7225010d08",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.6 || ^7.0",
+                "php": "^7.0",
                 "phpdocumentor/reflection-common": "^1.0.0",
                 "phpdocumentor/type-resolver": "^0.4.0",
                 "webmozart/assert": "^1.0"
             },
             "require-dev": {
-                "mockery/mockery": "^0.9.4",
-                "phpunit/phpunit": "^4.4"
+                "doctrine/instantiator": "~1.0.5",
+                "mockery/mockery": "^1.0",
+                "phpunit/phpunit": "^6.4"
             },
             "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "4.x-dev"
+                }
+            },
             "autoload": {
                 "psr-4": {
                     "phpDocumentor\\Reflection\\": [
@@ -1675,7 +1898,7 @@
                 }
             ],
             "description": "With this component, a library can provide support for annotations via DocBlocks or otherwise retrieve information that is embedded in a DocBlock.",
-            "time": "2017-11-10T14:09:06+00:00"
+            "time": "2017-11-30T07:14:17+00:00"
         },
         {
             "name": "phpdocumentor/type-resolver",
@@ -1726,33 +1949,33 @@
         },
         {
             "name": "phpspec/prophecy",
-            "version": "1.7.5",
+            "version": "1.8.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpspec/prophecy.git",
-                "reference": "dfd6be44111a7c41c2e884a336cc4f461b3b2401"
+                "reference": "4ba436b55987b4bf311cb7c6ba82aa528aac0a06"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpspec/prophecy/zipball/dfd6be44111a7c41c2e884a336cc4f461b3b2401",
-                "reference": "dfd6be44111a7c41c2e884a336cc4f461b3b2401",
+                "url": "https://api.github.com/repos/phpspec/prophecy/zipball/4ba436b55987b4bf311cb7c6ba82aa528aac0a06",
+                "reference": "4ba436b55987b4bf311cb7c6ba82aa528aac0a06",
                 "shasum": ""
             },
             "require": {
                 "doctrine/instantiator": "^1.0.2",
                 "php": "^5.3|^7.0",
                 "phpdocumentor/reflection-docblock": "^2.0|^3.0.2|^4.0",
-                "sebastian/comparator": "^1.1|^2.0",
+                "sebastian/comparator": "^1.1|^2.0|^3.0",
                 "sebastian/recursion-context": "^1.0|^2.0|^3.0"
             },
             "require-dev": {
                 "phpspec/phpspec": "^2.5|^3.2",
-                "phpunit/phpunit": "^4.8.35 || ^5.7 || ^6.5"
+                "phpunit/phpunit": "^4.8.35 || ^5.7 || ^6.5 || ^7.1"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.7.x-dev"
+                    "dev-master": "1.8.x-dev"
                 }
             },
             "autoload": {
@@ -1785,7 +2008,51 @@
                 "spy",
                 "stub"
             ],
-            "time": "2018-02-19T10:16:54+00:00"
+            "time": "2018-08-05T17:53:17+00:00"
+        },
+        {
+            "name": "phpstan/phpstan-shim",
+            "version": "0.10.3",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/phpstan/phpstan-shim.git",
+                "reference": "1b12b7b684201385c1bd4bdb8e50ff062b33bb5c"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/phpstan/phpstan-shim/zipball/1b12b7b684201385c1bd4bdb8e50ff062b33bb5c",
+                "reference": "1b12b7b684201385c1bd4bdb8e50ff062b33bb5c",
+                "shasum": ""
+            },
+            "require": {
+                "php": "~7.1"
+            },
+            "replace": {
+                "nikic/php-parser": "^4.0.2",
+                "phpstan/phpdoc-parser": "^0.3",
+                "phpstan/phpstan": "self.version"
+            },
+            "bin": [
+                "phpstan",
+                "phpstan.phar"
+            ],
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "0.10-dev"
+                }
+            },
+            "autoload": {
+                "files": [
+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "description": "PHPStan Phar distribution",
+            "time": "2018-08-12T16:21:59+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",
@@ -2222,6 +2489,7 @@
                 "github",
                 "test"
             ],
+            "abandoned": "php-coveralls/php-coveralls",
             "time": "2017-10-14T23:15:34+00:00"
         },
         {
@@ -2597,107 +2865,141 @@
             "time": "2015-06-21T13:59:46+00:00"
         },
         {
-            "name": "symfony/console",
-            "version": "v3.4.4",
+            "name": "slevomat/coding-standard",
+            "version": "4.4.6",
             "source": {
                 "type": "git",
-                "url": "https://github.com/symfony/console.git",
-                "reference": "26b6f419edda16c19775211987651cb27baea7f1"
+                "url": "https://github.com/slevomat/coding-standard.git",
+                "reference": "861e7b55d348c81a9dd0b3655dbbc83076d60c05"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/console/zipball/26b6f419edda16c19775211987651cb27baea7f1",
-                "reference": "26b6f419edda16c19775211987651cb27baea7f1",
+                "url": "https://api.github.com/repos/slevomat/coding-standard/zipball/861e7b55d348c81a9dd0b3655dbbc83076d60c05",
+                "reference": "861e7b55d348c81a9dd0b3655dbbc83076d60c05",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.5.9|>=7.0.8",
-                "symfony/debug": "~2.8|~3.0|~4.0",
-                "symfony/polyfill-mbstring": "~1.0"
-            },
-            "conflict": {
-                "symfony/dependency-injection": "<3.4",
-                "symfony/process": "<3.3"
+                "php": "^7.1",
+                "squizlabs/php_codesniffer": "^3.0.2"
             },
             "require-dev": {
-                "psr/log": "~1.0",
-                "symfony/config": "~3.3|~4.0",
-                "symfony/dependency-injection": "~3.4|~4.0",
-                "symfony/event-dispatcher": "~2.8|~3.0|~4.0",
-                "symfony/lock": "~3.4|~4.0",
-                "symfony/process": "~3.3|~4.0"
+                "jakub-onderka/php-parallel-lint": "0.9.2",
+                "phing/phing": "2.16",
+                "phpstan/phpstan": "0.9.2",
+                "phpstan/phpstan-phpunit": "0.9.4",
+                "phpstan/phpstan-strict-rules": "0.9",
+                "phpunit/php-code-coverage": "6.0.1",
+                "phpunit/phpunit": "7.0.0"
+            },
+            "type": "phpcodesniffer-standard",
+            "autoload": {
+                "psr-4": {
+                    "SlevomatCodingStandard\\": "SlevomatCodingStandard"
+                }
             },
-            "suggest": {
-                "psr/log": "For using the console logger",
-                "symfony/event-dispatcher": "",
-                "symfony/lock": "",
-                "symfony/process": ""
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "description": "Slevomat Coding Standard for PHP_CodeSniffer complements Consistence Coding Standard by providing sniffs with additional checks.",
+            "time": "2018-02-15T17:13:28+00:00"
+        },
+        {
+            "name": "squizlabs/php_codesniffer",
+            "version": "3.3.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/squizlabs/PHP_CodeSniffer.git",
+                "reference": "6ad28354c04b364c3c71a34e4a18b629cc3b231e"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/squizlabs/PHP_CodeSniffer/zipball/6ad28354c04b364c3c71a34e4a18b629cc3b231e",
+                "reference": "6ad28354c04b364c3c71a34e4a18b629cc3b231e",
+                "shasum": ""
+            },
+            "require": {
+                "ext-simplexml": "*",
+                "ext-tokenizer": "*",
+                "ext-xmlwriter": "*",
+                "php": ">=5.4.0"
             },
+            "require-dev": {
+                "phpunit/phpunit": "^4.0 || ^5.0 || ^6.0 || ^7.0"
+            },
+            "bin": [
+                "bin/phpcs",
+                "bin/phpcbf"
+            ],
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.4-dev"
+                    "dev-master": "3.x-dev"
                 }
             },
-            "autoload": {
-                "psr-4": {
-                    "Symfony\\Component\\Console\\": ""
-                },
-                "exclude-from-classmap": [
-                    "/Tests/"
-                ]
-            },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
-                "MIT"
+                "BSD-3-Clause"
             ],
             "authors": [
                 {
-                    "name": "Fabien Potencier",
-                    "email": "fabien@symfony.com"
-                },
-                {
-                    "name": "Symfony Community",
-                    "homepage": "https://symfony.com/contributors"
+                    "name": "Greg Sherwood",
+                    "role": "lead"
                 }
             ],
-            "description": "Symfony Console Component",
-            "homepage": "https://symfony.com",
-            "time": "2018-01-29T09:03:43+00:00"
+            "description": "PHP_CodeSniffer tokenizes PHP, JavaScript and CSS files and detects violations of a defined set of coding standards.",
+            "homepage": "http://www.squizlabs.com/php-codesniffer",
+            "keywords": [
+                "phpcs",
+                "standards"
+            ],
+            "time": "2018-09-23T23:08:17+00:00"
         },
         {
-            "name": "symfony/debug",
-            "version": "v3.4.4",
+            "name": "symfony/console",
+            "version": "v4.1.6",
             "source": {
                 "type": "git",
-                "url": "https://github.com/symfony/debug.git",
-                "reference": "53f6af2805daf52a43b393b93d2f24925d35c937"
+                "url": "https://github.com/symfony/console.git",
+                "reference": "dc7122fe5f6113cfaba3b3de575d31112c9aa60b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/debug/zipball/53f6af2805daf52a43b393b93d2f24925d35c937",
-                "reference": "53f6af2805daf52a43b393b93d2f24925d35c937",
+                "url": "https://api.github.com/repos/symfony/console/zipball/dc7122fe5f6113cfaba3b3de575d31112c9aa60b",
+                "reference": "dc7122fe5f6113cfaba3b3de575d31112c9aa60b",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.5.9|>=7.0.8",
-                "psr/log": "~1.0"
+                "php": "^7.1.3",
+                "symfony/polyfill-mbstring": "~1.0"
             },
             "conflict": {
-                "symfony/http-kernel": ">=2.3,<2.3.24|~2.4.0|>=2.5,<2.5.9|>=2.6,<2.6.2"
+                "symfony/dependency-injection": "<3.4",
+                "symfony/process": "<3.3"
             },
             "require-dev": {
-                "symfony/http-kernel": "~2.8|~3.0|~4.0"
+                "psr/log": "~1.0",
+                "symfony/config": "~3.4|~4.0",
+                "symfony/dependency-injection": "~3.4|~4.0",
+                "symfony/event-dispatcher": "~3.4|~4.0",
+                "symfony/lock": "~3.4|~4.0",
+                "symfony/process": "~3.4|~4.0"
+            },
+            "suggest": {
+                "psr/log-implementation": "For using the console logger",
+                "symfony/event-dispatcher": "",
+                "symfony/lock": "",
+                "symfony/process": ""
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.4-dev"
+                    "dev-master": "4.1-dev"
                 }
             },
             "autoload": {
                 "psr-4": {
-                    "Symfony\\Component\\Debug\\": ""
+                    "Symfony\\Component\\Console\\": ""
                 },
                 "exclude-from-classmap": [
                     "/Tests/"
@@ -2717,22 +3019,22 @@
                     "homepage": "https://symfony.com/contributors"
                 }
             ],
-            "description": "Symfony Debug Component",
+            "description": "Symfony Console Component",
             "homepage": "https://symfony.com",
-            "time": "2018-01-18T22:16:57+00:00"
+            "time": "2018-10-03T08:15:46+00:00"
         },
         {
             "name": "symfony/event-dispatcher",
-            "version": "v2.8.34",
+            "version": "v2.8.46",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/event-dispatcher.git",
-                "reference": "d64be24fc1eba62f9daace8a8918f797fc8e87cc"
+                "reference": "84ae343f39947aa084426ed1138bb96bf94d1f12"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/event-dispatcher/zipball/d64be24fc1eba62f9daace8a8918f797fc8e87cc",
-                "reference": "d64be24fc1eba62f9daace8a8918f797fc8e87cc",
+                "url": "https://api.github.com/repos/symfony/event-dispatcher/zipball/84ae343f39947aa084426ed1138bb96bf94d1f12",
+                "reference": "84ae343f39947aa084426ed1138bb96bf94d1f12",
                 "shasum": ""
             },
             "require": {
@@ -2779,20 +3081,20 @@
             ],
             "description": "Symfony EventDispatcher Component",
             "homepage": "https://symfony.com",
-            "time": "2018-01-03T07:36:31+00:00"
+            "time": "2018-07-26T09:03:18+00:00"
         },
         {
             "name": "symfony/polyfill-mbstring",
-            "version": "v1.7.0",
+            "version": "v1.9.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-mbstring.git",
-                "reference": "78be803ce01e55d3491c1397cf1c64beb9c1b63b"
+                "reference": "d0cd638f4634c16d8df4508e847f14e9e43168b8"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/polyfill-mbstring/zipball/78be803ce01e55d3491c1397cf1c64beb9c1b63b",
-                "reference": "78be803ce01e55d3491c1397cf1c64beb9c1b63b",
+                "url": "https://api.github.com/repos/symfony/polyfill-mbstring/zipball/d0cd638f4634c16d8df4508e847f14e9e43168b8",
+                "reference": "d0cd638f4634c16d8df4508e847f14e9e43168b8",
                 "shasum": ""
             },
             "require": {
@@ -2804,7 +3106,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.7-dev"
+                    "dev-master": "1.9-dev"
                 }
             },
             "autoload": {
@@ -2838,29 +3140,29 @@
                 "portable",
                 "shim"
             ],
-            "time": "2018-01-30T19:27:44+00:00"
+            "time": "2018-08-06T14:22:27+00:00"
         },
         {
             "name": "symfony/stopwatch",
-            "version": "v3.4.4",
+            "version": "v4.1.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/stopwatch.git",
-                "reference": "c865551df7c17e63fc1f09f763db04387f91ae4d"
+                "reference": "5bfc064125b73ff81229e19381ce1c34d3416f4b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/stopwatch/zipball/c865551df7c17e63fc1f09f763db04387f91ae4d",
-                "reference": "c865551df7c17e63fc1f09f763db04387f91ae4d",
+                "url": "https://api.github.com/repos/symfony/stopwatch/zipball/5bfc064125b73ff81229e19381ce1c34d3416f4b",
+                "reference": "5bfc064125b73ff81229e19381ce1c34d3416f4b",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.5.9|>=7.0.8"
+                "php": "^7.1.3"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.4-dev"
+                    "dev-master": "4.1-dev"
                 }
             },
             "autoload": {
@@ -2887,7 +3189,7 @@
             ],
             "description": "Symfony Stopwatch Component",
             "homepage": "https://symfony.com",
-            "time": "2018-01-03T07:37:34+00:00"
+            "time": "2018-10-02T12:40:59+00:00"
         },
         {
             "name": "webmozart/assert",
@@ -2946,7 +3248,7 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
-        "php": ">=5.6"
+        "php": ">=7.1"
     },
     "platform-dev": []
 }
diff --git a/docker-compose.yml b/docker-compose.yml
index 20c5f02..a5ed102 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -3,8 +3,7 @@ services:
   app:
     build: .
     image: keboola/ex-db-snowflake
-    tty: true
-    stdin_open: true
+    command: composer ci
     environment:
       - STORAGE_API_TOKEN
       - SNOWFLAKE_DB_HOST
@@ -16,9 +15,7 @@ services:
       - SNOWFLAKE_DB_WAREHOUSE
   dev:
     image: keboola/ex-db-snowflake
-    tty: true
-    stdin_open: true
-    command: vendor/bin/phpunit
+    command: composer ci
     volumes:
       - .:/code
     environment:
diff --git a/driver/downloadDriver.php b/driver/downloadDriver.php
index f27a3a8..2005327 100644
--- a/driver/downloadDriver.php
+++ b/driver/downloadDriver.php
@@ -1,6 +1,9 @@
 <?php
+
+declare(strict_types=1);
+
 date_default_timezone_set('Europe/Prague');
-ini_set('display_errors', true);
+ini_set('display_errors', 'true');
 error_reporting(E_ALL);
 
 $basedir = dirname(__DIR__);
@@ -19,11 +22,11 @@
 $client->getObject([
     'Bucket' => 'keboola-configs',
     'Key' => 'drivers/snowflake/snowflake-odbc-2.13.17.x86_64.deb',
-    'SaveAs' => './snowflake-odbc-x86_64.deb'
+    'SaveAs' => './snowflake-odbc-x86_64.deb',
 ]);
 
 $client->getObject([
     'Bucket' => 'keboola-configs',
     'Key' => 'drivers/snowflake-snowsql/snowsql-1.1.50-linux_x86_64.bash',
-    'SaveAs' => './snowsql-linux_x86_64.bash'
+    'SaveAs' => './snowsql-linux_x86_64.bash',
 ]);
diff --git a/phpcs.xml b/phpcs.xml
new file mode 100644
index 0000000..67e37cf
--- /dev/null
+++ b/phpcs.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0"?>
+<ruleset name="Project">
+    <rule ref="vendor/keboola/coding-standard/src/ruleset.xml"/>
+</ruleset>
diff --git a/phpstan.neon b/phpstan.neon
new file mode 100644
index 0000000..f318682
--- /dev/null
+++ b/phpstan.neon
@@ -0,0 +1,3 @@
+parameters:
+	ignoreErrors:
+		- '#Cannot call method scalarNode()#'
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 3a5c07d..a4af4f7 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -8,11 +8,7 @@
          processIsolation="false"
          stopOnFailure="false"
          syntaxCheck="false"
-         bootstrap="vendor/keboola/db-extractor-common/bootstrap.php">
-
-    <php>
-        <const name="ROOT_PATH" value="/code"/>
-    </php>
+         bootstrap="vendor/autoload.php">
 
     <testsuite name="DB Extractor Snowflake Test Suite">
         <directory>tests</directory>
diff --git a/run.php b/run.php
index d3a62e7..fc2f609 100644
--- a/run.php
+++ b/run.php
@@ -1,17 +1,16 @@
 <?php
+
+declare(strict_types=1);
+
 use Keboola\DbExtractor\SnowflakeApplication;
-use Keboola\DbExtractor\Exception\ApplicationException;
 use Keboola\DbExtractor\Exception\UserException;
 use Keboola\DbExtractor\Logger;
 use Monolog\Handler\NullHandler;
 use Symfony\Component\Yaml\Yaml;
 
-define('APP_NAME', 'ex-db-snowflake');
-define('ROOT_PATH', __DIR__);
-
-require_once(dirname(__FILE__) . "/vendor/keboola/db-extractor-common/bootstrap.php");
+require_once __DIR__ . "/vendor/autoload.php";
 
-$logger = new \Keboola\DbExtractor\Logger(APP_NAME);
+$logger = new Logger('ex-db-snowflake');
 
 try {
     $runAction = true;
@@ -21,12 +20,20 @@
         throw new UserException('Data folder not set.');
     }
 
-    $app = new SnowflakeApplication(
-        Yaml::parse(
+    if (file_exists($arguments["data"] . "/config.yml")) {
+        $config = Yaml::parse(
             file_get_contents($arguments["data"] . "/config.yml")
-        ),
-        $arguments["data"]
-    );
+        );
+    } else if (file_exists($arguments["data"] . "/config.json")) {
+        $config = json_decode(
+            file_get_contents($arguments["data"] . "/config.json"),
+            true
+        );
+    } else {
+        throw new UserException('Could not find configuration file');
+    }
+
+    $app = new SnowflakeApplication($config, $logger, [], $arguments["data"]);
 
     if ($app['action'] !== 'run') {
         $app['logger']->setHandlers(array(new NullHandler(Logger::INFO)));
@@ -43,20 +50,20 @@
     exit(0);
 } catch (UserException $e) {
     $logger->log('error', $e->getMessage(), (array) $e->getData());
-
     if (!$runAction) {
         echo $e->getMessage();
     }
-
     exit(1);
-} catch (ApplicationException $e) {
-    $logger->log('error', $e->getMessage(), (array) $e->getData());
-    exit(2);
-} catch (\Exception $e) {
-    $logger->log('error', $e->getMessage(), [
-        'errFile' => $e->getFile(),
-        'errLine' => $e->getLine(),
-        'trace' => $e->getTrace()
-    ]);
+} catch (\Throwable $e) {
+    $logger->critical(
+        get_class($e) . ':' . $e->getMessage(),
+        [
+            'errFile' => $e->getFile(),
+            'errLine' => $e->getLine(),
+            'errCode' => $e->getCode(),
+            'errTrace' => $e->getTraceAsString(),
+            'errPrevious' => $e->getPrevious() ? get_class($e->getPrevious()) : '',
+        ]
+    );
     exit(2);
 }
diff --git a/src/Keboola/DbExtractor/Configuration/SnowflakeConfigDefinition.php b/src/Keboola/DbExtractor/Configuration/SnowflakeConfigDefinition.php
index 5fa06f9..f22a728 100644
--- a/src/Keboola/DbExtractor/Configuration/SnowflakeConfigDefinition.php
+++ b/src/Keboola/DbExtractor/Configuration/SnowflakeConfigDefinition.php
@@ -1,21 +1,21 @@
 <?php
+
+declare(strict_types=1);
+
 namespace Keboola\DbExtractor\Configuration;
 
+use Symfony\Component\Config\Definition\Builder\ArrayNodeDefinition;
 use Symfony\Component\Config\Definition\Builder\TreeBuilder;
-use Symfony\Component\Config\Definition\ConfigurationInterface;
 
-class SnowflakeConfigDefinition implements ConfigurationInterface
+class SnowflakeConfigDefinition extends ConfigDefinition
 {
-    /**
-     * Generates the configuration tree builder.
-     *
-     * @return \Symfony\Component\Config\Definition\Builder\TreeBuilder The tree builder
-     */
-    public function getConfigTreeBuilder()
+    public function getConfigTreeBuilder(): TreeBuilder
     {
         $treeBuilder = new TreeBuilder();
+        /** @var ArrayNodeDefinition $rootNode */
         $rootNode = $treeBuilder->root('parameters');
 
+        // @formatter:off
         $rootNode
             ->children()
                 ->scalarNode('data_dir')
@@ -52,14 +52,8 @@ public function getConfigTreeBuilder()
                 ->arrayNode('tables')
                     ->prototype('array')
                         ->children()
-                            ->integerNode('id')
-                                ->isRequired()
-                                ->min(0)
-                            ->end()
-                            ->scalarNode('name')
-                                ->isRequired()
-                                ->cannotBeEmpty()
-                            ->end()
+                            ->integerNode('id')->isRequired()->min(0)->end()
+                            ->scalarNode('name')->isRequired()->cannotBeEmpty()->end()
                             ->scalarNode('query')->end()
                             ->arrayNode('table')
                                 ->children()
@@ -68,65 +62,20 @@ public function getConfigTreeBuilder()
                                 ->end()
                             ->end()
                             ->arrayNode('columns')
-                                ->prototype('scalar')
-                                ->end()
-                            ->end()
-                            ->scalarNode('outputTable')
-                                ->isRequired()
-                                ->cannotBeEmpty()
-                            ->end()
-                            ->booleanNode('incremental')
-                                ->defaultValue(false)
-                            ->end()
-                            ->booleanNode('enabled')
-                                ->defaultValue(true)
+                                ->prototype('scalar')->end()
                             ->end()
+                            ->scalarNode('outputTable')->isRequired()->cannotBeEmpty()->end()
+                            ->booleanNode('incremental')->defaultValue(false)->end()
+                            ->booleanNode('enabled')->defaultValue(true)->end()
                             ->arrayNode('primaryKey')
-                                ->prototype('scalar')
-                                ->end()
-                            ->end()
-                            ->integerNode('retries')
-                                ->min(1)
+                                ->prototype('scalar')->end()
                             ->end()
+                            ->integerNode('retries')->min(1)->end()
                         ->end()
                     ->end()
                 ->end()
-            ->end()
-        ;
-
+            ->end();
+        // @formatter:on
         return $treeBuilder;
     }
-
-    public function addSshNode()
-    {
-        $builder = new TreeBuilder();
-        $node = $builder->root('ssh');
-
-        $node
-            ->children()
-                ->booleanNode('enabled')->end()
-                ->arrayNode('keys')
-                    ->children()
-                        ->scalarNode('private')->end()
-                        ->scalarNode('#private')->end()
-                        ->scalarNode('public')->end()
-                    ->end()
-                ->end()
-                ->scalarNode('sshHost')->end()
-                ->scalarNode('sshPort')
-                    ->defaultValue("22")
-                ->end()
-                ->scalarNode('remoteHost')
-                ->end()
-                ->scalarNode('remotePort')
-                ->end()
-                ->scalarNode('localPort')
-                    ->defaultValue("33006")
-                ->end()
-                ->scalarNode('user')->end()
-            ->end()
-        ;
-
-        return $node;
-    }
 }
diff --git a/src/Keboola/DbExtractor/Extractor/Snowflake.php b/src/Keboola/DbExtractor/Extractor/Snowflake.php
index 0862400..6097727 100644
--- a/src/Keboola/DbExtractor/Extractor/Snowflake.php
+++ b/src/Keboola/DbExtractor/Extractor/Snowflake.php
@@ -1,8 +1,10 @@
 <?php
+
+declare(strict_types=1);
+
 namespace Keboola\DbExtractor\Extractor;
 
 use Keboola\Csv\CsvFile;
-use Keboola\Db\Import\Exception;
 use Keboola\DbExtractor\Exception\UserException;
 use Keboola\DbExtractor\Logger;
 use Keboola\Db\Import\Snowflake\Connection;
@@ -15,12 +17,11 @@
 use Retry\Policy\SimpleRetryPolicy;
 use Retry\RetryProxy;
 use Symfony\Component\Process\Process;
-use Symfony\Component\Yaml\Yaml;
 
 class Snowflake extends Extractor
 {
 
-    const SEMI_STRUCTURED_TYPES = ['VARIANT' , 'OBJECT', 'ARRAY'];
+    public const SEMI_STRUCTURED_TYPES = ['VARIANT' , 'OBJECT', 'ARRAY'];
 
     /**
      * @var Connection
@@ -32,9 +33,16 @@ class Snowflake extends Extractor
      */
     private $snowSqlConfig;
 
+    /** @var string */
     private $warehouse;
+
+    /** @var string */
     private $database;
+
+    /** @var string */
     private $schema;
+
+    /** @var string */
     private $user;
 
     /**
@@ -42,16 +50,16 @@ class Snowflake extends Extractor
      */
     private $temp;
 
-    public function __construct($parameters, Logger $logger)
+    public function __construct(array $parameters, array $state, Logger $logger)
     {
         $this->temp = new Temp('ex-snowflake');
 
-        parent::__construct($parameters, $logger);
+        parent::__construct($parameters, $state, $logger);
     }
 
-    public function createConnection($dbParams)
+    public function createConnection(array $dbParams): Connection
     {
-        $this->snowSqlConfig = $this->crateSnowSqlConfig($dbParams);
+        $this->snowSqlConfig = $this->createSnowSqlConfig($dbParams);
 
         $connection = new Connection($dbParams);
 
@@ -71,7 +79,7 @@ public function createConnection($dbParams)
         return $connection;
     }
 
-    public function testConnection()
+    public function testConnection(): void
     {
         $this->db->query('SELECT current_date;');
 
@@ -90,7 +98,7 @@ public function testConnection()
                 'USE WAREHOUSE %s;',
                 $this->db->quoteIdentifier($warehouse)
             ));
-        } catch (\Exception $e) {
+        } catch (\Throwable $e) {
             if (preg_match('/Object does not exist/ui', $e->getMessage())) {
                 throw new UserException(sprintf('Invalid warehouse "%s" specified', $warehouse));
             } else {
@@ -99,18 +107,21 @@ public function testConnection()
         }
     }
 
-    public function export(array $table)
+    public function export(array $table): array
     {
         $outputTable = $table['outputTable'];
 
         $this->logger->info("Exporting to " . $outputTable);
 
-        $this->exportAndDownload($table);
+        $rowCount = $this->exportAndDownload($table);
 
-        return $outputTable;
+        return [
+            "outputTable"=> $outputTable,
+            "rows" => $rowCount,
+        ];
     }
 
-    private function getColumnInfo(string $query)
+    private function getColumnInfo(string $query): array
     {
         // Create temporary view from the supplied query
         $sql = sprintf(
@@ -120,7 +131,7 @@ private function getColumnInfo(string $query)
 
         try {
             $this->db->query($sql);
-        } catch (\Exception $e) {
+        } catch (\Throwable $e) {
             throw new UserException(
                 sprintf('DB query "%s" failed: %s', rtrim(trim($query), ';'), $e->getMessage()),
                 0,
@@ -131,12 +142,12 @@ private function getColumnInfo(string $query)
         return $this->db->fetchAll("DESC RESULT LAST_QUERY_ID()");
     }
 
-    private function exportAndDownload(array $table)
+    private function exportAndDownload(array $table): int
     {
         if (!isset($table['query']) || $table['query'] === '') {
             $query = $this->simpleQuery($table['table'], $table['columns']);
             $columnInfo = $this->getColumnInfo($query);
-            $objectColumns = array_filter($columnInfo, function ($column) {
+            $objectColumns = array_filter($columnInfo, function ($column): bool {
                 return in_array($column['type'], self::SEMI_STRUCTURED_TYPES);
             });
             if (!empty($objectColumns)) {
@@ -155,7 +166,7 @@ private function exportAndDownload(array $table)
 
         try {
             $res = $this->executeCopyCommand($copyCommand);
-        } catch (\Exception $e) {
+        } catch (\Throwable $e) {
             throw new UserException(
                 sprintf('Copy Command: %s failed with message: %s', $copyCommand, $e->getMessage())
             );
@@ -163,9 +174,11 @@ private function exportAndDownload(array $table)
 
         if (count($res) > 0 && (int) $res[0]['rows_unloaded'] === 0) {
             // query resulted in no rows, nothing left to do
-            return;
+            return 0;
         }
 
+        $rowCount = (int) $res[0]['rows_unloaded'];
+
         $this->logger->info("Downloading data from Snowflake");
 
         $outputDataDir = $this->dataDir . '/out/tables/' . $tmpTableName . ".csv.gz";
@@ -190,7 +203,7 @@ private function exportAndDownload(array $table)
         );
 
         $snowSql = $this->temp->createTmpFile('snowsql.sql');
-        file_put_contents($snowSql, implode("\n", $sql));
+        file_put_contents($snowSql->getPathname(), implode("\n", $sql));
 
         $this->logger->debug(trim(implode("\n", $sql)));
 
@@ -221,24 +234,31 @@ private function exportAndDownload(array $table)
 
         file_put_contents(
             $outputDataDir . '.manifest',
-            Yaml::dump($this->createTableManifest($table, array_map(
-                function ($column) {
-                    return $column['name'];
-                },
-                $columnInfo
-            )))
+            json_encode(
+                $this->createTableManifest(
+                    $table,
+                    array_map(
+                        function ($column): string {
+                            return $column['name'];
+                        },
+                        $columnInfo
+                    )
+                )
+            )
         );
 
         $this->logger->info(sprintf(
             "%d files (%s) downloaded",
             count($csvFiles),
-            $this->dataSizeFormatted($bytesDownloaded)
+            $this->dataSizeFormatted((int) $bytesDownloaded)
         ));
 
         $this->cleanupTableStage($tmpTableName);
+
+        return $rowCount;
     }
 
-    private function generateCopyCommand($stageTmpPath, $query)
+    private function generateCopyCommand(string $stageTmpPath, string $query): string
     {
         $csvOptions = [];
         $csvOptions[] = sprintf('FIELD_DELIMITER = %s', $this->quote(CsvFile::DEFAULT_DELIMITER));
@@ -264,13 +284,7 @@ private function generateCopyCommand($stageTmpPath, $query)
         );
     }
 
-    /**
-     * @param $copyCommand
-     * @param int $maxTries
-     * @return array
-     * @throws \Exception
-     */
-    private function executeCopyCommand($copyCommand, $maxTries = 5): array
+    private function executeCopyCommand(string $copyCommand, int $maxTries = 5): array
     {
         $retryPolicy = new SimpleRetryPolicy($maxTries, ['PDOException', 'ErrorException', 'Exception']);
         $backOffPolicy = new ExponentialBackOffPolicy(1000);
@@ -285,7 +299,7 @@ private function executeCopyCommand($copyCommand, $maxTries = 5): array
                 }
                 try {
                     return $this->db->fetchAll($copyCommand);
-                } catch (\Exception $e) {
+                } catch (\Throwable $e) {
                     $lastException = new UserException(
                         sprintf("Copy Command failed: %s", $e->getMessage()),
                         0,
@@ -295,8 +309,8 @@ private function executeCopyCommand($copyCommand, $maxTries = 5): array
                     throw $e;
                 }
             });
-        } catch (\Exception $e) {
-            if ($lastException) {
+        } catch (\Throwable $e) {
+            if ($lastException !== null) {
                 throw $lastException;
             }
             throw $e;
@@ -312,7 +326,7 @@ private function createTableManifest(array $table, array $columns): array
             'enclosure' => CsvFile::DEFAULT_ENCLOSURE,
             'primary_key' => $table['primaryKey'],
             'incremental' => $table['incremental'],
-            'columns' => $columns
+            'columns' => $columns,
         ];
 
         if (isset($table['table']) && isset($table['table']['tableName'])) {
@@ -348,7 +362,7 @@ private function createTableManifest(array $table, array $columns): array
                         if ($key !== 'name') {
                             $columnMetadata[$column['name']][] = [
                                 'key' => "KBC." . $key,
-                                'value'=> $value
+                                'value'=> $value,
                             ];
                         }
                     }
@@ -357,7 +371,7 @@ private function createTableManifest(array $table, array $columns): array
                 foreach ($tableDetails as $key => $value) {
                     $manifestData['metadata'][] = [
                         "key" => "KBC." . $key,
-                        "value" => $value
+                        "value" => $value,
                     ];
                 }
                 $manifestData['column_metadata'] = $columnMetadata;
@@ -366,15 +380,15 @@ private function createTableManifest(array $table, array $columns): array
 
         return $manifestData;
     }
-    
-    private function dataSizeFormatted(int $bytes)
+
+    private function dataSizeFormatted(int $bytes): string
     {
         $base = log($bytes) / log(1024);
         $suffixes = [' B', ' KB', ' MB', ' GB', ' TB'];
         return round(pow(1024, $base - floor($base)), 2) . $suffixes[(int) floor($base)];
     }
 
-    public function getTables(array $tables = null)
+    public function getTables(?array $tables = null): array
     {
         $sql = $this->schema ? "SHOW TABLES IN SCHEMA" : "SHOW TABLES IN DATABASE";
         $arr = $this->db->fetchAll($sql);
@@ -386,7 +400,7 @@ public function getTables(array $tables = null)
         $tableNameArray = [];
         $tableDefs = [];
         foreach ($arr as $table) {
-            if (($this->schema && $table['schema_name'] !== $this->schema) || $table['schema_name'] === 'INFORMATION_SCHEMA') {
+            if ($this->shouldTableBeSkipped($table)) {
                 continue;
             }
             if (is_null($tables) || !(array_search($table['name'], array_column($tables, 'tableName')) === false)) {
@@ -396,7 +410,7 @@ public function getTables(array $tables = null)
                     'name' => $table['name'],
                     'catalog' => (isset($table['database_name'])) ? $table['database_name'] : null,
                     'schema' => (isset($table['schema_name'])) ? $table['schema_name'] : null,
-                    'type' => $isView ? 'VIEW' : (isset($table['kind']) ? $table['kind'] : null)
+                    'type' => $isView ? 'VIEW' : (isset($table['kind']) ? $table['kind'] : null),
                 ];
                 if (isset($table['rows'])) {
                     $tableDefs[$table['schema_name'] . '.' . $table['name']]['rowCount'] = $table['rows'];
@@ -415,8 +429,8 @@ public function getTables(array $tables = null)
             "SELECT * FROM information_schema.columns 
              WHERE TABLE_NAME IN (%s)
              ORDER BY TABLE_SCHEMA, TABLE_NAME, ORDINAL_POSITION",
-            implode(', ', array_map(function ($tableName) {
-                return "'" . $tableName . "'";
+            implode(', ', array_map(function ($tableName): string {
+                return $this->quote($tableName);
             }, $tableNameArray))
         );
 
@@ -438,7 +452,7 @@ public function getTables(array $tables = null)
                 "length" => $length,
                 "nullable" => (trim($column['IS_NULLABLE']) === "NO") ? false : true,
                 "type" => $column['DATA_TYPE'],
-                "ordinalPosition" => $column['ORDINAL_POSITION']
+                "ordinalPosition" => $column['ORDINAL_POSITION'],
             ];
 
             if (!array_key_exists('columns', $tableDefs[$curTable])) {
@@ -449,12 +463,19 @@ public function getTables(array $tables = null)
         return array_values($tableDefs);
     }
 
-    public function simpleQuery(array $table, array $columns = array())
+    private function shouldTableBeSkipped(array $table): bool
+    {
+        $isFromDifferentSchema = $this->schema && $table['schema_name'] !== $this->schema;
+        $isFromInformationSchema = $table['schema_name'] === 'INFORMATION_SCHEMA';
+        return $isFromDifferentSchema || $isFromInformationSchema;
+    }
+
+    public function simpleQuery(array $table, array $columns = array()): string
     {
         if (count($columns) > 0) {
             return sprintf(
                 "SELECT %s FROM %s.%s",
-                implode(', ', array_map(function ($column) {
+                implode(', ', array_map(function ($column): string {
                     return $this->db->quoteIdentifier($column);
                 }, $columns)),
                 $this->db->quoteIdentifier($table['schema']),
@@ -473,7 +494,7 @@ private function simpleQueryWithCasting(array $table, array $columnInfo) : strin
     {
         return sprintf(
             "SELECT %s FROM %s.%s",
-            implode(', ', array_map(function ($column) {
+            implode(', ', array_map(function ($column): string {
                 if (in_array($column['type'], self::SEMI_STRUCTURED_TYPES)) {
                     return sprintf(
                         'CAST(%s AS TEXT) AS %s',
@@ -488,25 +509,19 @@ private function simpleQueryWithCasting(array $table, array $columnInfo) : strin
         );
     }
 
-    /**
-     * @param $output
-     * @param $path
-     * @return \SplFileInfo[]
-     * @throws \Exception
-     */
-    private function parseFiles($output, $path)
+    private function parseFiles(string $output, string $path): array
     {
         $files = [];
         $lines = explode("\n", $output);
 
         $lines = array_map(
-            function ($item) {
+            function ($item): array {
                 $item = trim($item, '|');
                 return array_map('trim', explode('|', $item));
             },
             array_filter(
                 $lines,
-                function ($item) {
+                function ($item): bool {
                     $item = trim($item);
                     return preg_match('/^\|.+\|$/ui', $item) && preg_match('/([a-z0-9\_\-\.]+\.gz)/ui', $item);
                 }
@@ -535,16 +550,12 @@ function ($item) {
         return $files;
     }
 
-    private function quote($value)
+    private function quote(string $value): string
     {
         return "'" . addslashes($value) . "'";
     }
 
-    /**
-     * @param $dbParams
-     * @return \SplFileInfo
-     */
-    private function crateSnowSqlConfig($dbParams)
+    private function createSnowSqlConfig(array $dbParams): \SplFileInfo
     {
         $cliConfig[] = '';
         $cliConfig[] = '[options]';
@@ -565,12 +576,12 @@ private function crateSnowSqlConfig($dbParams)
         }
 
         $file = $this->temp->createFile('snowsql.config');
-        file_put_contents($file, implode("\n", $cliConfig));
+        file_put_contents($file->getPathname(), implode("\n", $cliConfig));
 
         return $file;
     }
 
-    private function getUserDefaultWarehouse()
+    private function getUserDefaultWarehouse(): ?string
     {
         $sql = sprintf(
             "DESC USER %s;",
@@ -588,11 +599,11 @@ private function getUserDefaultWarehouse()
         return null;
     }
 
-    private function execQuery($query)
+    private function execQuery(string $query): void
     {
         try {
             $this->db->query($query);
-        } catch (\Exception $e) {
+        } catch (\Throwable $e) {
             throw new UserException("Query execution error: " . $e->getMessage(), 0, $e);
         }
     }
diff --git a/src/Keboola/DbExtractor/SnowflakeApplication.php b/src/Keboola/DbExtractor/SnowflakeApplication.php
index 156fa5a..2e86b03 100644
--- a/src/Keboola/DbExtractor/SnowflakeApplication.php
+++ b/src/Keboola/DbExtractor/SnowflakeApplication.php
@@ -1,16 +1,19 @@
 <?php
+
+declare(strict_types=1);
+
 namespace Keboola\DbExtractor;
 
 use Keboola\DbExtractor\Configuration\SnowflakeConfigDefinition;
 
 class SnowflakeApplication extends Application
 {
-    public function __construct(array $config, $dataDir)
+    public function __construct(array $config, Logger $logger, array $state, string $dataDir)
     {
         $config['parameters']['data_dir'] = $dataDir;
         $config['parameters']['extractor_class'] = 'Snowflake';
 
-        parent::__construct($config);
+        parent::__construct($config, $logger, $state);
 
         $this->setConfigDefinition(new SnowflakeConfigDefinition());
     }
diff --git a/src/Keboola/DbExtractor/Utils/AccountUrlParser.php b/src/Keboola/DbExtractor/Utils/AccountUrlParser.php
index 37d759c..4d77bef 100644
--- a/src/Keboola/DbExtractor/Utils/AccountUrlParser.php
+++ b/src/Keboola/DbExtractor/Utils/AccountUrlParser.php
@@ -1,9 +1,12 @@
 <?php
+
+declare(strict_types=1);
+
 namespace Keboola\DbExtractor\Utils;
 
 class AccountUrlParser
 {
-    public static function parse($host)
+    public static function parse(string $host): string
     {
         $hostParts = explode('.', $host);
         return implode('.', array_slice($hostParts, 0, count($hostParts) - 2));
diff --git a/tests/AbstractSnowflakeTest.php b/tests/AbstractSnowflakeTest.php
index 5a8ef65..49d4a8c 100644
--- a/tests/AbstractSnowflakeTest.php
+++ b/tests/AbstractSnowflakeTest.php
@@ -1,8 +1,12 @@
 <?php
-namespace Keboola\Test;
+
+declare(strict_types=1);
+
+namespace Keboola\DbExtractor\Tests;
 
 use Keboola\Csv\CsvFile;
 use Keboola\Db\Import\Snowflake\Connection;
+use Keboola\DbExtractor\Logger;
 use Keboola\DbExtractor\Test\ExtractorTest;
 use Keboola\StorageApi\Client;
 use Keboola\StorageApi\Options\FileUploadOptions;
@@ -22,7 +26,10 @@ abstract class AbstractSnowflakeTest extends ExtractorTest
      */
     protected $storageApiClient;
 
-    public function setUp()
+    /** @var string  */
+    protected $dataDir = __DIR__ . '/data';
+
+    public function setUp(): void
     {
         parent::setUp();
 
@@ -39,24 +46,25 @@ public function setUp()
         );
 
         $this->storageApiClient = new Client([
-            'token' => getenv('STORAGE_API_TOKEN')
+            'token' => getenv('STORAGE_API_TOKEN'),
         ]);
 
         $this->setupTables();
 
         $fileSystem = new Filesystem();
-        $fileSystem->remove(__DIR__ . '/data/out');
-        $fileSystem->remove(__DIR__ . '/data/runAction/config.yml');
-        $fileSystem->remove(__DIR__ . '/data/runAction/out');
-        $fileSystem->remove(__DIR__ . '/data/connectionAction/config.yml');
-        $fileSystem->remove(__DIR__ . '/tests/data/connectionAction/out');
+        $fileSystem->remove($this->dataDir . '/out');
+        $fileSystem->remove($this->dataDir . '/runAction/config.yml');
+        $fileSystem->remove($this->dataDir . '/runAction/config.json');
+        $fileSystem->remove($this->dataDir . '/runAction/out');
+        $fileSystem->remove($this->dataDir . '/connectionAction/config.yml');
+        $fileSystem->remove($this->dataDir . '/connectionAction/config.json');
+        $fileSystem->remove($this->dataDir . '/connectionAction/out');
+        $fileSystem->remove($this->dataDir . '/getTablesAction/config.yml');
+        $fileSystem->remove($this->dataDir . '/getTablesAction/config.json');
+        $fileSystem->remove($this->dataDir . '/getTablesAction/out');
     }
 
-    /**
-     * @param string $driver
-     * @return mixed
-     */
-    public function getConfig($driver = 'snowflake')
+    public function getConfig(string $driver = 'snowflake', string $format = 'json'): array
     {
         $config = parent::getConfig($driver);
 
@@ -72,22 +80,15 @@ public function getConfig($driver = 'snowflake')
         return $config;
     }
 
-    /**
-     * @param array $config
-     * @return SnowflakeApplication
-     */
-    public function createApplication(array $config)
+    public function createApplication(array $config): SnowflakeApplication
     {
-        $app = new SnowflakeApplication($config, $this->dataDir);
+        $logger = new Logger('ex-db-snowflake-tests');
+        $app = new SnowflakeApplication($config, $logger, [], $this->dataDir);
 
         return $app;
     }
 
-    /**
-     * @param CsvFile $file
-     * @return string
-     */
-    protected function generateTableName(CsvFile $file)
+    protected function generateTableName(CsvFile $file): string
     {
         $tableName = sprintf(
             '%s',
@@ -97,7 +98,7 @@ protected function generateTableName(CsvFile $file)
         return $tableName;
     }
 
-    private function setupTables()
+    private function setupTables(): void
     {
         $salescsv = new CsvFile($this->dataDir . '/snowflake/sales.csv');
         $this->createTextTable($salescsv);
@@ -114,12 +115,17 @@ private function setupTables()
 
         $this->connection->query(
             sprintf(
-                'CREATE TABLE %s ("character" VARCHAR(100) NOT NULL, "integer" NUMBER(6,0), "decimal" NUMBER(10,2), "date" DATE);',
+                'CREATE TABLE %s (
+                  "character" VARCHAR(100) NOT NULL, 
+                  "integer" NUMBER(6,0), 
+                  "decimal" NUMBER(10,2), 
+                  "date" DATE
+                );',
                 $this->connection->quoteIdentifier('types')
             )
         );
         $storageFileInfo = $this->storageApiClient->getFile(
-            $this->storageApiClient->uploadFile(
+            (string) $this->storageApiClient->uploadFile(
                 (string) $types,
                 new FileUploadOptions()
             ),
@@ -135,11 +141,13 @@ private function setupTables()
 
         // create a view with a json object column
         $this->connection->query('DROP TABLE IF EXISTS "semi-structured"');
-        $this->connection->query('CREATE TABLE "semi-structured" ( 
-                                            "var" VARIANT, 
-                                            "obj" OBJECT,
-                                            "arr" ARRAY
-                                       )');
+        $this->connection->query(
+            'CREATE TABLE "semi-structured" ( 
+                    "var" VARIANT, 
+                    "obj" OBJECT,
+                    "arr" ARRAY
+            )'
+        );
         $this->connection->query(
             'INSERT INTO "semi-structured" 
                   SELECT 
@@ -149,12 +157,12 @@ private function setupTables()
         );
     }
 
-    private function quote($value)
+    private function quote(string $value): string
     {
         return "'" . addslashes($value) . "'";
     }
 
-    private function generateCreateCommand($tableName, CsvFile $csv, $fileInfo)
+    private function generateCreateCommand(string $tableName, CsvFile $csv, array $fileInfo): string
     {
         $csvOptions = [];
         $csvOptions[] = sprintf('FIELD_DELIMITER = %s', $this->connection->quoteIdentifier($csv->getDelimiter()));
@@ -189,7 +197,7 @@ private function generateCreateCommand($tableName, CsvFile $csv, $fileInfo)
      * @param string $tableName - optional name override (default uses filename)
      * @param string $schemaName - optional schema in which to create the table
      */
-    protected function createTextTable(CsvFile $file, $tableName = null, $schemaName = null)
+    protected function createTextTable(CsvFile $file, ?string $tableName = null, ?string $schemaName = null): void
     {
         if (!$tableName) {
             $tableName = $this->generateTableName($file);
@@ -215,12 +223,11 @@ protected function createTextTable(CsvFile $file, $tableName = null, $schemaName
                     $q = '"';
                     return ($q . str_replace("$q", "$q$q", $column) . $q) . ' VARCHAR(200) NOT NULL';
                 }, $file->getHeader())
-            ),
-            $tableName
+            )
         ));
 
         $storageFileInfo = $this->storageApiClient->getFile(
-            $this->storageApiClient->uploadFile(
+            (string) $this->storageApiClient->uploadFile(
                 (string) $file,
                 new FileUploadOptions()
             ),
@@ -238,13 +245,7 @@ protected function createTextTable(CsvFile $file, $tableName = null, $schemaName
         $this->assertEquals($this->countTable($file), (int) $result[0]['ROWCOUNT']);
     }
 
-    /**
-     * Count records in CSV (with headers)
-     *
-     * @param CsvFile $file
-     * @return int
-     */
-    protected function countTable(CsvFile $file)
+    protected function countTable(CsvFile $file): int
     {
         $linesCount = 0;
         foreach ($file as $i => $line) {
@@ -258,4 +259,12 @@ protected function countTable(CsvFile $file)
 
         return $linesCount;
     }
+
+    public function configTypesProvider(): array
+    {
+        return [
+            ['yaml'],
+            ['json'],
+        ];
+    }
 }
diff --git a/tests/AccountParseTest.php b/tests/AccountParseTest.php
index 2bab01e..21c7b6f 100644
--- a/tests/AccountParseTest.php
+++ b/tests/AccountParseTest.php
@@ -1,11 +1,14 @@
 <?php
-namespace Keboola\Test;
+
+declare(strict_types=1);
+
+namespace Keboola\DbExtractor\Tests;
 
 use Keboola\DbExtractor\Utils\AccountUrlParser;
 
 class AccountParseTest extends \PHPUnit_Framework_TestCase
 {
-    public function testParseAccount()
+    public function testParseAccount(): void
     {
         $this->assertEquals(
             'something',
diff --git a/tests/SnowflakeEntrypointTest.php b/tests/SnowflakeEntrypointTest.php
index dba052b..9971a51 100644
--- a/tests/SnowflakeEntrypointTest.php
+++ b/tests/SnowflakeEntrypointTest.php
@@ -1,33 +1,52 @@
 <?php
-namespace Keboola\Test;
 
+declare(strict_types=1);
+
+namespace Keboola\DbExtractor\Tests;
+
+use Keboola\DbExtractor\Exception\UserException;
 use Symfony\Component\Process\Process;
 use Symfony\Component\Yaml\Yaml;
 
 class SnowflakeEntrypointTest extends AbstractSnowflakeTest
 {
-    private function createConfigFile($rootPath)
-    {
-        $driver = 'snowflake';
+    public const DRIVER = 'snowflake';
 
-        $config = Yaml::parse(file_get_contents($rootPath . '/config.template.yml'));
-        $config['parameters']['db']['user'] = $this->getEnv($driver, 'DB_USER', true);
-        $config['parameters']['db']['#password'] = $this->getEnv($driver, 'DB_PASSWORD', true);
-        $config['parameters']['db']['schema'] = $this->getEnv($driver, 'DB_SCHEMA');
-        $config['parameters']['db']['host'] = $this->getEnv($driver, 'DB_HOST');
-        $config['parameters']['db']['port'] = $this->getEnv($driver, 'DB_PORT');
-        $config['parameters']['db']['database'] = $this->getEnv($driver, 'DB_DATABASE');
-        $config['parameters']['db']['warehouse'] = $this->getEnv($driver, 'DB_WAREHOUSE');
+    public const ROOT_PATH = __DIR__ . '/..';
+
+    private function createConfigFile(string $rootPath, string $configType = 'yaml'): void
+    {
+        $config = Yaml::parse((string) file_get_contents($rootPath . '/config.template.yml'));
+        $config['parameters']['db']['user'] = $this->getEnv(self::DRIVER, 'DB_USER', true);
+        $config['parameters']['db']['#password'] = $this->getEnv(self::DRIVER, 'DB_PASSWORD', true);
+        $config['parameters']['db']['schema'] = $this->getEnv(self::DRIVER, 'DB_SCHEMA');
+        $config['parameters']['db']['host'] = $this->getEnv(self::DRIVER, 'DB_HOST');
+        $config['parameters']['db']['port'] = $this->getEnv(self::DRIVER, 'DB_PORT');
+        $config['parameters']['db']['database'] = $this->getEnv(self::DRIVER, 'DB_DATABASE');
+        $config['parameters']['db']['warehouse'] = $this->getEnv(self::DRIVER, 'DB_WAREHOUSE');
 
         if (isset($config['parameters']['tables'][2]['table'])) {
-            $config['parameters']['tables'][2]['table']['schema'] = $this->getEnv($driver, 'DB_SCHEMA');
+            $config['parameters']['tables'][2]['table']['schema'] = $this->getEnv(self::DRIVER, 'DB_SCHEMA');
         }
-        file_put_contents($rootPath . '/config.yml', Yaml::dump($config));
 
-        return new \SplFileInfo($rootPath . '/config.yml');
+        // unlink any old configs written here
+        @unlink($rootPath . '/config.yml');
+        @unlink($rootPath . '/config.json');
+
+        if ($configType === 'yaml') {
+            file_put_contents($rootPath . '/config.yml', Yaml::dump($config));
+        } else if ($configType === 'json') {
+            file_put_contents($rootPath . '/config.json', json_encode($config));
+        } else {
+            throw new UserException(sprintf("Unsupported configType [%s]", $configType));
+        }
     }
 
-    public function testRunAction()
+    /**
+     * @dataProvider configTypesProvider
+     * @param string $configType
+     */
+    public function testRunAction(string $configType): void
     {
         $dataPath = __DIR__ . '/data/runAction';
 
@@ -40,12 +59,13 @@ public function testRunAction()
         @unlink($dataPath . "/out/tables/in.c-main_tableColumns.csv.gz");
         @unlink($dataPath . "/out/tables/in.c-main_tableColumns.csv.gz.manifest");
 
-        $this->createConfigFile($dataPath);
+        $this->createConfigFile($dataPath, $configType);
 
-        $process = new Process('php ' . ROOT_PATH . '/run.php --data=' . $dataPath . ' 2>&1');
+        $process = new Process('php ' . self::ROOT_PATH . '/run.php --data=' . $dataPath . ' 2>&1');
         $process->setTimeout(300);
         $process->run();
-        $this->assertEquals(0, $process->getExitCode(), sprintf('error output: ', $process->getErrorOutput()));
+
+        $this->assertEquals(0, $process->getExitCode(), sprintf('error output: %s', $process->getErrorOutput()));
         $this->assertFileExists($dataPath . "/out/tables/in_c-main_sales.csv.gz");
         $this->assertFileExists($dataPath . "/out/tables/in_c-main_sales.csv.gz.manifest");
         $this->assertFileExists($dataPath . "/out/tables/in_c-main_escaping.csv.gz");
@@ -54,13 +74,17 @@ public function testRunAction()
         $this->assertFileExists($dataPath . "/out/tables/in_c-main_tableColumns.csv.gz.manifest");
     }
 
-    public function testConnectionAction()
+    /**
+     * @dataProvider configTypesProvider
+     * @param string $configType
+     */
+    public function testConnectionAction(string $configType): void
     {
         $dataPath = __DIR__ . '/data/connectionAction';
 
-        $this->createConfigFile($dataPath);
+        $this->createConfigFile($dataPath, $configType);
 
-        $process = new Process('php ' . ROOT_PATH . '/run.php --data=' . $dataPath . ' 2>&1');
+        $process = new Process('php ' . self::ROOT_PATH . '/run.php --data=' . $dataPath . ' 2>&1');
         $process->run();
 
         $output = $process->getOutput();
@@ -73,28 +97,31 @@ public function testConnectionAction()
         $this->assertEquals('success', $data['status']);
     }
 
-    public function testNonexistingTable()
+    public function testNonexistingTable(): void
     {
         $config = $this->getConfig();
         $config['parameters']['tables'][0]['query'] = "SELECT * FROM non_existing_table";
         @unlink($this->dataDir . '/config.yml');
         file_put_contents($this->dataDir . '/config.yml', Yaml::dump($config));
 
-        $process = new Process('php ' . ROOT_PATH . '/run.php --data=' . $this->dataDir);
+        $process = new Process('php ' . self::ROOT_PATH . '/run.php --data=' . $this->dataDir);
         $process->setTimeout(300);
         $process->run();
 
         $this->assertEquals(1, $process->getExitCode());
     }
 
-    public function testGetTablesAction()
+    /**
+     * @dataProvider configTypesProvider
+     * @param string $configType
+     */
+    public function testGetTablesAction(string $configType): void
     {
-        $config = $this->getConfig();
-        @unlink($this->dataDir . '/config.yml');
-        $config['action'] = 'getTables';
-        file_put_contents($this->dataDir . '/config.yml', Yaml::dump($config));
+        $dataPath = __DIR__ . '/data/getTablesAction';
 
-        $process = new Process('php ' . ROOT_PATH . '/run.php --data=' . $this->dataDir);
+        $this->createConfigFile($dataPath, $configType);
+        
+        $process = new Process('php ' . self::ROOT_PATH . '/run.php --data=' . $dataPath);
         $process->setTimeout(300);
         $process->run();
 
@@ -103,7 +130,7 @@ public function testGetTablesAction()
         $this->assertEquals("", $process->getErrorOutput());
     }
 
-    public function testBadTypesRetries()
+    public function testBadTypesRetries(): void
     {
         $config = $this->getConfig();
         $this->createTextTable(new \Keboola\Csv\CsvFile($this->dataDir . '/snowflake/badTypes.csv'), 'types');
@@ -116,7 +143,7 @@ public function testBadTypesRetries()
         @unlink($this->dataDir . '/config.yml');
         file_put_contents($this->dataDir . '/config.yml', Yaml::dump($config));
 
-        $process = new Process('php ' . ROOT_PATH . '/run.php --data=' . $this->dataDir);
+        $process = new Process('php ' . self::ROOT_PATH . '/run.php --data=' . $this->dataDir);
         $process->setTimeout(300);
         $process->run();
 
diff --git a/tests/SnowflakeTest.php b/tests/SnowflakeTest.php
index 4dd13b2..ab535ef 100644
--- a/tests/SnowflakeTest.php
+++ b/tests/SnowflakeTest.php
@@ -1,5 +1,8 @@
 <?php
-namespace Keboola\Test;
+
+declare(strict_types=1);
+
+namespace Keboola\DbExtractor\Tests;
 
 use Keboola\Csv\CsvFile;
 use Keboola\DbExtractor\Exception\UserException;
@@ -7,7 +10,7 @@
 
 class SnowflakeTest extends AbstractSnowflakeTest
 {
-    public function testDefaultWarehouse()
+    public function testDefaultWarehouse(): void
     {
         $config = $this->getConfig();
         $user = $config['parameters']['db']['user'];
@@ -22,7 +25,7 @@ public function testDefaultWarehouse()
         try {
             $app->run();
             $this->fail('Run extractor without warehouse should fail');
-        } catch (\Exception $e) {
+        } catch (\Throwable $e) {
             $this->assertRegExp('/No active warehouse/ui', $e->getMessage());
         }
 
@@ -37,7 +40,7 @@ public function testDefaultWarehouse()
         $this->setUserDefaultWarehouse($user, $warehouse);
     }
 
-    public function testCredentials()
+    public function testCredentials(): void
     {
         $config = $this->getConfig();
         $config['action'] = 'testConnection';
@@ -50,7 +53,7 @@ public function testCredentials()
         $this->assertEquals('success', $result['status']);
     }
 
-    public function testCredentialsWithoutSchema()
+    public function testCredentialsWithoutSchema(): void
     {
         $config = $this->getConfig();
         $config['action'] = 'testConnection';
@@ -64,7 +67,7 @@ public function testCredentialsWithoutSchema()
         $this->assertEquals('success', $result['status']);
     }
 
-    public function testCredentialsDefaultWarehouse()
+    public function testCredentialsDefaultWarehouse(): void
     {
         $config = $this->getConfig();
         $config['action'] = 'testConnection';
@@ -107,7 +110,7 @@ public function testCredentialsDefaultWarehouse()
         $this->setUserDefaultWarehouse($user, $warehouse);
     }
 
-    public function testRunWithoutTables()
+    public function testRunWithoutTables(): void
     {
         $config = $this->getConfig();
 
@@ -120,7 +123,7 @@ public function testRunWithoutTables()
         $this->assertEquals('success', $result['status']);
     }
 
-    public function testRun()
+    public function testRunMain(): void
     {
         $config = $this->getConfig();
         $app = $this->createApplication($config);
@@ -155,19 +158,22 @@ public function testRun()
         array_shift($csv1arr);
         $outCsv1 = new CsvFile($this->dataDir . '/out/tables/in_c-main_sales.csv.gz/part_0_0_0.csv');
         $this->assertEquals($csv1arr, iterator_to_array($outCsv1));
+        $this->assertEquals(100, $result['imported']['0']['rows']);
 
         $csv2arr = iterator_to_array($csv2);
         array_shift($csv2arr);
         $outCsv2 = new CsvFile($this->dataDir . '/out/tables/in_c-main_escaping.csv.gz/part_0_0_0.csv');
         $this->assertEquals($csv2arr, iterator_to_array($outCsv2));
+        $this->assertEquals(7, $result['imported']['1']['rows']);
 
         $csv3arr = iterator_to_array($csv3);
         array_shift($csv3arr);
         $outCsv3 = new CsvFile($this->dataDir . '/out/tables/in_c-main_tableColumns.csv.gz/part_0_0_0.csv');
         $this->assertEquals($csv3arr, iterator_to_array($outCsv3));
+        $this->assertEquals(4, $result['imported']['2']['rows']);
     }
 
-    public function testRunWithoutSchema()
+    public function testRunWithoutSchema(): void
     {
         $config = $this->getConfig();
         unset($config['parameters']['db']['schema']);
@@ -180,7 +186,7 @@ public function testRunWithoutSchema()
         try {
             $result = $app->run();
             $this->fail('The query does not specify schema and no schema is specified in the connection.');
-        } catch (\Exception $e) {
+        } catch (\Throwable $e) {
             $this->assertContains('no schema is specified', $e->getMessage());
         }
 
@@ -195,7 +201,7 @@ public function testRunWithoutSchema()
         $this->validateExtraction($config['parameters']['tables'][0]);
     }
 
-    public function testRunEmptyQuery()
+    public function testRunEmptyQuery(): void
     {
         $csv = new CsvFile($this->dataDir . '/snowflake/escaping.csv');
         $this->createTextTable($csv);
@@ -216,7 +222,7 @@ public function testRunEmptyQuery()
         $this->assertFileNotExists($outputManifestFile);
     }
 
-    public function testGetTables()
+    public function testGetTables(): void
     {
         $config = $this->getConfig();
         $config['action'] = 'getTables';
@@ -507,7 +513,7 @@ public function testGetTables()
         $this->assertEquals($expectedData, $result['tables']);
     }
 
-    public function testGetTablesWithoutSchema()
+    public function testGetTablesWithoutSchema(): void
     {
         $config = $this->getConfig();
         $config['action'] = 'getTables';
@@ -829,7 +835,7 @@ public function testGetTablesWithoutSchema()
         $this->assertEquals($expectedData, $result['tables']);
     }
 
-    public function testManifestMetadata()
+    public function testManifestMetadata(): void
     {
         $config = $this->getConfig();
 
@@ -842,7 +848,7 @@ public function testManifestMetadata()
         $result = $app->run();
 
         $outputManifest = Yaml::parse(
-            file_get_contents($this->dataDir . '/out/tables/in_c-main_tableColumns.csv.gz.manifest')
+            (string) file_get_contents($this->dataDir . '/out/tables/in_c-main_tableColumns.csv.gz.manifest')
         );
 
         $this->assertArrayHasKey('destination', $outputManifest);
@@ -1018,14 +1024,14 @@ public function testManifestMetadata()
         $this->assertEquals($expectedColumnMetadata, $outputManifest['column_metadata']);
     }
 
-    public function testSemiStructured()
+    public function testSemiStructured(): void
     {
         $config = $this->getConfig();
         $table = $config['parameters']['tables'][0];
         unset($table['query']);
         $table['table'] = [
             'tableName' => 'semi-structured',
-            'schema' => $this->getEnv('snowflake', 'DB_SCHEMA')
+            'schema' => $this->getEnv('snowflake', 'DB_SCHEMA'),
         ];
         $table['outputTable'] = 'in.c-main.semi-structured';
         $table['primaryKey'] = null;
@@ -1042,14 +1048,14 @@ public function testSemiStructured()
         exec("gunzip -d " . escapeshellarg($archiveFile), $output, $return);
         $this->assertEquals(0, $return);
 
-        $rawFile = new \SplFileInfo($this->dataDir . '/out/tables/in_c-main_semi-structured.csv.gz/part_0_0_0.csv');
+        $rawFile = $this->dataDir . '/out/tables/in_c-main_semi-structured.csv.gz/part_0_0_0.csv';
         $this->assertEquals(
             file_get_contents($this->dataDir . '/snowflake/expected-semi-structured.csv'),
             file_get_contents($rawFile)
         );
     }
 
-    private function getUserDefaultWarehouse($user)
+    private function getUserDefaultWarehouse(string $user): ?string
     {
         $sql = sprintf(
             "DESC USER %s;",
@@ -1067,7 +1073,7 @@ private function getUserDefaultWarehouse($user)
         return null;
     }
 
-    private function setUserDefaultWarehouse($user, $warehouse = null)
+    private function setUserDefaultWarehouse(string $user, ?string $warehouse = null): void
     {
         if ($warehouse) {
             $sql = sprintf(
@@ -1089,7 +1095,7 @@ private function setUserDefaultWarehouse($user, $warehouse = null)
         }
     }
 
-    private function validateExtraction(array $query, $expectedFiles = 1)
+    private function validateExtraction(array $query, int $expectedFiles = 1): ?array
     {
 
         $dirPath = $this->dataDir . '/out/tables';
@@ -1100,7 +1106,7 @@ function ($manifestFileName) use ($dirPath) {
                 return $dirPath . '/' . $manifestFileName;
             },
             array_filter(
-                scandir($dirPath),
+                (array) scandir($dirPath),
                 function ($fileName) use ($dirPath, $outputTable) {
                     $filePath = $dirPath . '/' . $fileName;
                     if (is_dir($filePath)) {
@@ -1112,21 +1118,21 @@ function ($fileName) use ($dirPath, $outputTable) {
                         return false;
                     }
 
-                    $manifest = Yaml::parse(file_get_contents($file));
+                    $manifest = Yaml::parse((string) file_get_contents($file->getPathname()));
                     return $manifest['destination'] === $outputTable;
                 }
             )
         );
 
         if (!$expectedFiles) {
-            return;
+            return null;
         }
 
         $this->assertCount($expectedFiles, $manifestFiles);
         $columns = [];
         foreach ($manifestFiles as $file) {
             // manifest validation
-            $params = Yaml::parse(file_get_contents($file));
+            $params = Yaml::parse((string) file_get_contents($file));
 
             $this->assertArrayHasKey('destination', $params);
             $this->assertArrayHasKey('incremental', $params);
@@ -1146,13 +1152,13 @@ function ($fileName) use ($dirPath, $outputTable) {
                 $this->assertEquals($query['outputTable'], $params['destination']);
             }
 
-            $csvDir = new \SplFileInfo(str_replace('.manifest', '', $file));
+            $csvDir = str_replace('.manifest', '', $file);
 
             $this->assertTrue(is_dir($csvDir));
 
-            foreach (array_diff(scandir($csvDir), array('..', '.')) as $csvFile) {
+            foreach (array_diff((array) scandir($csvDir), array('..', '.')) as $csvFile) {
                 // archive validation
-                $archiveFile = new \SplFileInfo($csvDir . "/" . $csvFile);
+                $archiveFile = $csvDir . "/" . $csvFile;
                 $pos = strrpos($archiveFile, ".gz");
                 $rawFile = new \SplFileInfo(substr_replace($archiveFile, '', $pos, strlen(".gz")));
 
diff --git a/tests/data/getTablesAction/config.template.yml b/tests/data/getTablesAction/config.template.yml
new file mode 100644
index 0000000..03474c9
--- /dev/null
+++ b/tests/data/getTablesAction/config.template.yml
@@ -0,0 +1,29 @@
+action: getTables
+parameters:
+    tables:
+        -
+            id: 1
+            name: sales
+            query: SELECT * FROM "sales"
+            outputTable: in.c-main.sales
+            incremental: false
+            primaryKey: null
+            enabled: true
+        -
+            id: 2
+            name: escaping
+            query: SELECT * FROM "escaping"
+            outputTable: in.c-main.escaping
+            incremental: false
+            primaryKey:
+              -  col1
+            enabled: true
+        -
+            id: 3
+            name: somedata
+            query: SELECT * FROM "somedata"
+            outputTable: in.c-main.somedata
+            incremental: true
+            primaryKey:
+              -  somedataId
+            enabled: false