From f56c74c02b9ab3036e3c7d23d357cb81eaf1514e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andreas=20M=C3=B6ller?= <am@localheinz.com>
Date: Mon, 27 Dec 2021 13:24:45 +0100
Subject: [PATCH] Enhancement: Run mutation tests with infection/infection

---
 .gitattributes                   |   1 +
 .github/CONTRIBUTING.md          |  12 +
 .github/settings.yml             |   1 +
 .github/workflows/integrate.yaml |  44 +-
 Makefile                         |   8 +-
 composer.json                    |   4 +-
 composer.lock                    | 764 ++++++++++++++++++++++++++++++-
 infection.json                   |  17 +
 8 files changed, 843 insertions(+), 8 deletions(-)
 create mode 100644 infection.json

diff --git a/.gitattributes b/.gitattributes
index 84e1948f..fd0b4788 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -6,6 +6,7 @@
 /.gitignore                     export-ignore
 /.php_cs                        export-ignore
 /composer-require-checker.json  export-ignore
+/infection.json                 export-ignore
 /Makefile                       export-ignore
 /psalm-baseline.xml             export-ignore
 /psalm.xml                      export-ignore
diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
index 01534aaf..cb570a55 100644
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@@ -83,6 +83,18 @@ $ make tests
 
 to run all the tests.
 
+## Mutation Tests
+
+We are using [`infection/infection`](https://github.com/infection/infection) to ensure a minimum quality of the tests.
+
+Enable `Xdebug` and run
+
+```sh
+$ make mutation-tests
+```
+
+to run mutation tests.
+
 ## Extra lazy?
 
 Run
diff --git a/.github/settings.yml b/.github/settings.yml
index 90e0fd6f..55072605 100644
--- a/.github/settings.yml
+++ b/.github/settings.yml
@@ -17,6 +17,7 @@ branches:
           - "Code Coverage (7.4, locked)"
           - "Coding Standards (7.4, locked)"
           - "Dependency Analysis (7.4, locked)"
+          - "Mutation Tests (7.4, locked)"
           - "Static Code Analysis (7.4, locked)"
           - "Tests (7.4, highest)"
           - "Tests (7.4, locked)"
diff --git a/.github/workflows/integrate.yaml b/.github/workflows/integrate.yaml
index a47c6e0c..085ca3c8 100644
--- a/.github/workflows/integrate.yaml
+++ b/.github/workflows/integrate.yaml
@@ -9,8 +9,6 @@ on: # yamllint disable-line rule:truthy
       - "main"
 
 env:
-  MIN_COVERED_MSI: 92
-  MIN_MSI: 92
   PHP_EXTENSIONS: "mbstring"
 
 jobs:
@@ -264,3 +262,45 @@ jobs:
         env:
           CODECOV_TOKEN: "${{ secrets.CODECOV_TOKEN }}"
         run: "bash <(curl -s https://codecov.io/bash)"
+
+  mutation-tests:
+    name: "Mutation Tests"
+
+    runs-on: "ubuntu-latest"
+
+    strategy:
+      matrix:
+        php-version:
+          - "7.4"
+
+        dependencies:
+          - "locked"
+
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v2.4.0"
+
+      - name: "Install PHP with extensions"
+        uses: "shivammathur/setup-php@2.16.0"
+        with:
+          coverage: "xdebug"
+          extensions: "${{ env.PHP_EXTENSIONS }}"
+          php-version: "${{ matrix.php-version }}"
+
+      - name: "Determine composer cache directory"
+        uses: "./.github/actions/composer/composer/determine-cache-directory"
+
+      - name: "Cache dependencies installed with composer"
+        uses: "actions/cache@v2.1.7"
+        with:
+          path: "${{ env.COMPOSER_CACHE_DIR }}"
+          key: "php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-${{ hashFiles('composer.lock') }}"
+          restore-keys: "php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-"
+
+      - name: "Install ${{ matrix.dependencies }} dependencies with composer"
+        uses: "./.github/actions/composer/composer/install"
+        with:
+          dependencies: "${{ matrix.dependencies }}"
+
+      - name: "Run mutation tests with Xdebug and infection/infection"
+        run: "vendor/bin/infection --configuration=infection.json"
diff --git a/Makefile b/Makefile
index 59a39a1a..1ea16e98 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,3 @@
-MIN_COVERED_MSI:=92
-MIN_MSI:=92
-
 .PHONY: it
 it: coding-standards static-code-analysis tests ## Runs the coding-standards, static-code-analysis, and tests targets
 
@@ -24,6 +21,11 @@ dependency-analysis: vendor ## Runs a dependency analysis with maglnet/composer-
 help: ## Displays this list of targets with descriptions
 	@grep -E '^[a-zA-Z0-9_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[32m%-30s\033[0m %s\n", $$1, $$2}'
 
+.PHONY: mutation-tests
+mutation-tests: vendor ## Runs mutation tests with infection/infection
+	mkdir -p .build/infection
+	vendor/bin/infection --configuration=infection.json
+
 .PHONY: static-code-analysis
 static-code-analysis: vendor ## Runs a static code analysis with vimeo/psalm
 	mkdir -p .build/psalm
diff --git a/composer.json b/composer.json
index cc9cd7cc..314bf52c 100644
--- a/composer.json
+++ b/composer.json
@@ -24,13 +24,15 @@
     "ergebnis/license": "^1.1.0",
     "ergebnis/php-cs-fixer-config": "^3.4.0",
     "fakerphp/faker": "^1.17.0",
+    "infection/infection": "~0.25.5",
     "phpunit/phpunit": "^9.5.11",
     "psalm/plugin-phpunit": "~0.16.1",
     "vimeo/psalm": "^4.16.1"
   },
   "config": {
     "allow-plugins": {
-      "composer/package-versions-deprecated": true
+      "composer/package-versions-deprecated": true,
+      "infection/extension-installer": true
     },
     "platform": {
       "php": "7.4.26"
diff --git a/composer.lock b/composer.lock
index 169951ce..36ebf74a 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "a3f154f097b684121971d3f9e8649b2b",
+    "content-hash": "7efd47760d4c60f94d209d99daa4fd79",
     "packages": [],
     "packages-dev": [
         {
@@ -1109,6 +1109,369 @@
             ],
             "time": "2021-12-11T16:25:08+00:00"
         },
+        {
+            "name": "infection/abstract-testframework-adapter",
+            "version": "0.5.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/infection/abstract-testframework-adapter.git",
+                "reference": "18925e20d15d1a5995bb85c9dc09e8751e1e069b"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/infection/abstract-testframework-adapter/zipball/18925e20d15d1a5995bb85c9dc09e8751e1e069b",
+                "reference": "18925e20d15d1a5995bb85c9dc09e8751e1e069b",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.4 || ^8.0"
+            },
+            "require-dev": {
+                "ergebnis/composer-normalize": "^2.8",
+                "friendsofphp/php-cs-fixer": "^2.17",
+                "phpunit/phpunit": "^9.5"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Infection\\AbstractTestFramework\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Maks Rafalko",
+                    "email": "maks.rafalko@gmail.com"
+                }
+            ],
+            "description": "Abstract Test Framework Adapter for Infection",
+            "support": {
+                "issues": "https://github.com/infection/abstract-testframework-adapter/issues",
+                "source": "https://github.com/infection/abstract-testframework-adapter/tree/0.5.0"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/infection",
+                    "type": "github"
+                },
+                {
+                    "url": "https://opencollective.com/infection",
+                    "type": "open_collective"
+                }
+            ],
+            "time": "2021-08-17T18:49:12+00:00"
+        },
+        {
+            "name": "infection/extension-installer",
+            "version": "0.1.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/infection/extension-installer.git",
+                "reference": "ff30c0adffcdbc747c96adf92382ccbe271d0afd"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/infection/extension-installer/zipball/ff30c0adffcdbc747c96adf92382ccbe271d0afd",
+                "reference": "ff30c0adffcdbc747c96adf92382ccbe271d0afd",
+                "shasum": ""
+            },
+            "require": {
+                "composer-plugin-api": "^1.1 || ^2.0"
+            },
+            "require-dev": {
+                "composer/composer": "^1.9",
+                "friendsofphp/php-cs-fixer": "^2.16",
+                "infection/infection": "^0.15.2",
+                "php-coveralls/php-coveralls": "^2.2",
+                "phpstan/extension-installer": "^1.0",
+                "phpstan/phpstan": "^0.12.10",
+                "phpstan/phpstan-phpunit": "^0.12.6",
+                "phpstan/phpstan-strict-rules": "^0.12.2",
+                "phpstan/phpstan-webmozart-assert": "^0.12.2",
+                "phpunit/phpunit": "^8.5",
+                "vimeo/psalm": "^3.8"
+            },
+            "type": "composer-plugin",
+            "extra": {
+                "class": "Infection\\ExtensionInstaller\\Plugin"
+            },
+            "autoload": {
+                "psr-4": {
+                    "Infection\\ExtensionInstaller\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Maks Rafalko",
+                    "email": "maks.rafalko@gmail.com"
+                }
+            ],
+            "description": "Infection Extension Installer",
+            "support": {
+                "issues": "https://github.com/infection/extension-installer/issues",
+                "source": "https://github.com/infection/extension-installer/tree/0.1.1"
+            },
+            "time": "2020-04-25T22:40:05+00:00"
+        },
+        {
+            "name": "infection/include-interceptor",
+            "version": "0.2.5",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/infection/include-interceptor.git",
+                "reference": "0cc76d95a79d9832d74e74492b0a30139904bdf7"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/infection/include-interceptor/zipball/0cc76d95a79d9832d74e74492b0a30139904bdf7",
+                "reference": "0cc76d95a79d9832d74e74492b0a30139904bdf7",
+                "shasum": ""
+            },
+            "require-dev": {
+                "friendsofphp/php-cs-fixer": "^2.16",
+                "infection/infection": "^0.15.0",
+                "phan/phan": "^2.4 || ^3",
+                "php-coveralls/php-coveralls": "^2.2",
+                "phpstan/phpstan": "^0.12.8",
+                "phpunit/phpunit": "^8.5",
+                "vimeo/psalm": "^3.8"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Infection\\StreamWrapper\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Maks Rafalko",
+                    "email": "maks.rafalko@gmail.com"
+                }
+            ],
+            "description": "Stream Wrapper: Include Interceptor. Allows to replace included (autoloaded) file with another one.",
+            "support": {
+                "issues": "https://github.com/infection/include-interceptor/issues",
+                "source": "https://github.com/infection/include-interceptor/tree/0.2.5"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/infection",
+                    "type": "github"
+                },
+                {
+                    "url": "https://opencollective.com/infection",
+                    "type": "open_collective"
+                }
+            ],
+            "time": "2021-08-09T10:03:57+00:00"
+        },
+        {
+            "name": "infection/infection",
+            "version": "0.25.5",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/infection/infection.git",
+                "reference": "6844063ee1347c7942734b85ead95ad6226a4a02"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/infection/infection/zipball/6844063ee1347c7942734b85ead95ad6226a4a02",
+                "reference": "6844063ee1347c7942734b85ead95ad6226a4a02",
+                "shasum": ""
+            },
+            "require": {
+                "composer-runtime-api": "^2.0",
+                "composer/xdebug-handler": "^2.0",
+                "ext-dom": "*",
+                "ext-json": "*",
+                "ext-libxml": "*",
+                "infection/abstract-testframework-adapter": "^0.5.0",
+                "infection/extension-installer": "^0.1.0",
+                "infection/include-interceptor": "^0.2.5",
+                "justinrainbow/json-schema": "^5.2.10",
+                "nikic/php-parser": "^4.13",
+                "ondram/ci-detector": "^3.3.0",
+                "php": "^7.4.7 || ^8.0",
+                "sanmai/later": "^0.1.1",
+                "sanmai/pipeline": "^5.1 || ^6",
+                "sebastian/diff": "^3.0.2 || ^4.0",
+                "seld/jsonlint": "^1.7",
+                "symfony/console": "^3.4.29 || ^4.1.19 || ^5.0 || ^6.0",
+                "symfony/filesystem": "^3.4.29 || ^4.1.19 || ^5.0 || ^6.0",
+                "symfony/finder": "^3.4.29 || ^4.1.19 || ^5.0 || ^6.0",
+                "symfony/process": "^3.4.29 || ^4.1.19 || ^5.0 || ^6.0",
+                "thecodingmachine/safe": "^1.1.3",
+                "webmozart/assert": "^1.3",
+                "webmozart/path-util": "^2.3"
+            },
+            "conflict": {
+                "dg/bypass-finals": "*",
+                "phpunit/php-code-coverage": ">9 <9.1.4"
+            },
+            "require-dev": {
+                "brianium/paratest": "^6.3",
+                "ext-simplexml": "*",
+                "helmich/phpunit-json-assert": "^3.0",
+                "phpspec/prophecy-phpunit": "^2.0",
+                "phpstan/extension-installer": "^1.1.0",
+                "phpstan/phpstan": "^1.2.0",
+                "phpstan/phpstan-phpunit": "^1.0.0",
+                "phpstan/phpstan-strict-rules": "^1.1.0",
+                "phpstan/phpstan-webmozart-assert": "^1.0.2",
+                "phpunit/phpunit": "^9.3.11",
+                "symfony/phpunit-bridge": "^4.4.18 || ^5.1.10",
+                "symfony/yaml": "^5.0",
+                "thecodingmachine/phpstan-safe-rule": "^1.1.0"
+            },
+            "bin": [
+                "bin/infection"
+            ],
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Infection\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Maks Rafalko",
+                    "email": "maks.rafalko@gmail.com",
+                    "homepage": "https://twitter.com/maks_rafalko"
+                },
+                {
+                    "name": "Oleg Zhulnev",
+                    "homepage": "https://github.com/sidz"
+                },
+                {
+                    "name": "Gert de Pagter",
+                    "homepage": "https://github.com/BackEndTea"
+                },
+                {
+                    "name": "Théo FIDRY",
+                    "email": "theo.fidry@gmail.com",
+                    "homepage": "https://twitter.com/tfidry"
+                },
+                {
+                    "name": "Alexey Kopytko",
+                    "email": "alexey@kopytko.com",
+                    "homepage": "https://www.alexeykopytko.com"
+                },
+                {
+                    "name": "Andreas Möller",
+                    "email": "am@localheinz.com",
+                    "homepage": "https://localheinz.com"
+                }
+            ],
+            "description": "Infection is a Mutation Testing framework for PHP. The mutation adequacy score can be used to measure the effectiveness of a test set in terms of its ability to detect faults.",
+            "keywords": [
+                "coverage",
+                "mutant",
+                "mutation framework",
+                "mutation testing",
+                "testing",
+                "unit testing"
+            ],
+            "support": {
+                "issues": "https://github.com/infection/infection/issues",
+                "source": "https://github.com/infection/infection/tree/0.25.5"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/infection",
+                    "type": "github"
+                },
+                {
+                    "url": "https://opencollective.com/infection",
+                    "type": "open_collective"
+                }
+            ],
+            "time": "2021-12-16T05:06:28+00:00"
+        },
+        {
+            "name": "justinrainbow/json-schema",
+            "version": "5.2.11",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/justinrainbow/json-schema.git",
+                "reference": "2ab6744b7296ded80f8cc4f9509abbff393399aa"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/justinrainbow/json-schema/zipball/2ab6744b7296ded80f8cc4f9509abbff393399aa",
+                "reference": "2ab6744b7296ded80f8cc4f9509abbff393399aa",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.3"
+            },
+            "require-dev": {
+                "friendsofphp/php-cs-fixer": "~2.2.20||~2.15.1",
+                "json-schema/json-schema-test-suite": "1.2.0",
+                "phpunit/phpunit": "^4.8.35"
+            },
+            "bin": [
+                "bin/validate-json"
+            ],
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "5.0.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "JsonSchema\\": "src/JsonSchema/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Bruno Prieto Reis",
+                    "email": "bruno.p.reis@gmail.com"
+                },
+                {
+                    "name": "Justin Rainbow",
+                    "email": "justin.rainbow@gmail.com"
+                },
+                {
+                    "name": "Igor Wiedler",
+                    "email": "igor@wiedler.ch"
+                },
+                {
+                    "name": "Robert Schönthal",
+                    "email": "seroscho@googlemail.com"
+                }
+            ],
+            "description": "A library to validate a json schema.",
+            "homepage": "https://github.com/justinrainbow/json-schema",
+            "keywords": [
+                "json",
+                "schema"
+            ],
+            "support": {
+                "issues": "https://github.com/justinrainbow/json-schema/issues",
+                "source": "https://github.com/justinrainbow/json-schema/tree/5.2.11"
+            },
+            "time": "2021-07-22T09:24:00+00:00"
+        },
         {
             "name": "myclabs/deep-copy",
             "version": "1.10.2",
@@ -1274,6 +1637,78 @@
             },
             "time": "2021-11-30T19:35:32+00:00"
         },
+        {
+            "name": "ondram/ci-detector",
+            "version": "3.5.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/OndraM/ci-detector.git",
+                "reference": "594e61252843b68998bddd48078c5058fe9028bd"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/OndraM/ci-detector/zipball/594e61252843b68998bddd48078c5058fe9028bd",
+                "reference": "594e61252843b68998bddd48078c5058fe9028bd",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.1 || ^8.0"
+            },
+            "require-dev": {
+                "ergebnis/composer-normalize": "^2.2",
+                "lmc/coding-standard": "^1.3 || ^2.0",
+                "php-parallel-lint/php-parallel-lint": "^1.1",
+                "phpstan/extension-installer": "^1.0.3",
+                "phpstan/phpstan": "^0.12.0",
+                "phpstan/phpstan-phpunit": "^0.12.1",
+                "phpunit/phpunit": "^7.1 || ^8.0 || ^9.0"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "OndraM\\CiDetector\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Ondřej Machulda",
+                    "email": "ondrej.machulda@gmail.com"
+                }
+            ],
+            "description": "Detect continuous integration environment and provide unified access to properties of current build",
+            "keywords": [
+                "CircleCI",
+                "Codeship",
+                "Wercker",
+                "adapter",
+                "appveyor",
+                "aws",
+                "aws codebuild",
+                "bamboo",
+                "bitbucket",
+                "buddy",
+                "ci-info",
+                "codebuild",
+                "continuous integration",
+                "continuousphp",
+                "drone",
+                "github",
+                "gitlab",
+                "interface",
+                "jenkins",
+                "teamcity",
+                "travis"
+            ],
+            "support": {
+                "issues": "https://github.com/OndraM/ci-detector/issues",
+                "source": "https://github.com/OndraM/ci-detector/tree/main"
+            },
+            "time": "2020-09-04T11:21:14+00:00"
+        },
         {
             "name": "openlss/lib-array2xml",
             "version": "1.0.0",
@@ -2395,6 +2830,129 @@
             },
             "time": "2021-05-03T11:20:27+00:00"
         },
+        {
+            "name": "sanmai/later",
+            "version": "0.1.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/sanmai/later.git",
+                "reference": "9b659fecef2030193fd02402955bc39629d5606f"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/sanmai/later/zipball/9b659fecef2030193fd02402955bc39629d5606f",
+                "reference": "9b659fecef2030193fd02402955bc39629d5606f",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.1"
+            },
+            "require-dev": {
+                "friendsofphp/php-cs-fixer": "^2.13",
+                "infection/infection": ">=0.10.5",
+                "phan/phan": ">=2",
+                "php-coveralls/php-coveralls": "^2.0",
+                "phpstan/phpstan": ">=0.10",
+                "phpunit/phpunit": ">=7.4",
+                "vimeo/psalm": ">=2"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Later\\": "src/"
+                },
+                "files": [
+                    "src/functions.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "Apache-2.0"
+            ],
+            "authors": [
+                {
+                    "name": "Alexey Kopytko",
+                    "email": "alexey@kopytko.com"
+                }
+            ],
+            "description": "Later: deferred wrapper object",
+            "support": {
+                "issues": "https://github.com/sanmai/later/issues",
+                "source": "https://github.com/sanmai/later/tree/0.1.2"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/sanmai",
+                    "type": "github"
+                }
+            ],
+            "time": "2021-01-02T10:26:44+00:00"
+        },
+        {
+            "name": "sanmai/pipeline",
+            "version": "v6.0.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/sanmai/pipeline.git",
+                "reference": "d846cafe984c4c4a19fb83b9914d7d8feec08b2d"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/sanmai/pipeline/zipball/d846cafe984c4c4a19fb83b9914d7d8feec08b2d",
+                "reference": "d846cafe984c4c4a19fb83b9914d7d8feec08b2d",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.1 || ^8.0"
+            },
+            "require-dev": {
+                "ergebnis/composer-normalize": "^2.8",
+                "friendsofphp/php-cs-fixer": "^3",
+                "infection/infection": ">=0.10.5",
+                "league/pipeline": "^1.0 || ^0.3",
+                "phan/phan": ">=1.1",
+                "php-coveralls/php-coveralls": "^2.4.1",
+                "phpstan/phpstan": ">=0.10",
+                "phpunit/phpunit": "^7.4 || ^8.1 || ^9.4",
+                "vimeo/psalm": ">=2"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-main": "v6.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Pipeline\\": "src/"
+                },
+                "files": [
+                    "src/functions.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "Apache-2.0"
+            ],
+            "authors": [
+                {
+                    "name": "Alexey Kopytko",
+                    "email": "alexey@kopytko.com"
+                }
+            ],
+            "description": "General-purpose collections pipeline",
+            "support": {
+                "issues": "https://github.com/sanmai/pipeline/issues",
+                "source": "https://github.com/sanmai/pipeline/tree/v6.0.1"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/sanmai",
+                    "type": "github"
+                }
+            ],
+            "time": "2021-11-27T14:44:19+00:00"
+        },
         {
             "name": "sebastian/cli-parser",
             "version": "1.0.1",
@@ -3359,6 +3917,69 @@
             ],
             "time": "2020-09-28T06:39:44+00:00"
         },
+        {
+            "name": "seld/jsonlint",
+            "version": "1.8.3",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/Seldaek/jsonlint.git",
+                "reference": "9ad6ce79c342fbd44df10ea95511a1b24dee5b57"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/Seldaek/jsonlint/zipball/9ad6ce79c342fbd44df10ea95511a1b24dee5b57",
+                "reference": "9ad6ce79c342fbd44df10ea95511a1b24dee5b57",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^5.3 || ^7.0 || ^8.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^4.8.35 || ^5.7 || ^6.0"
+            },
+            "bin": [
+                "bin/jsonlint"
+            ],
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Seld\\JsonLint\\": "src/Seld/JsonLint/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Jordi Boggiano",
+                    "email": "j.boggiano@seld.be",
+                    "homepage": "http://seld.be"
+                }
+            ],
+            "description": "JSON Linter",
+            "keywords": [
+                "json",
+                "linter",
+                "parser",
+                "validator"
+            ],
+            "support": {
+                "issues": "https://github.com/Seldaek/jsonlint/issues",
+                "source": "https://github.com/Seldaek/jsonlint/tree/1.8.3"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/Seldaek",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/seld/jsonlint",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2020-11-11T09:19:24+00:00"
+        },
         {
             "name": "symfony/console",
             "version": "v5.4.1",
@@ -4743,6 +5364,145 @@
             ],
             "time": "2021-11-24T10:02:00+00:00"
         },
+        {
+            "name": "thecodingmachine/safe",
+            "version": "v1.3.3",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/thecodingmachine/safe.git",
+                "reference": "a8ab0876305a4cdaef31b2350fcb9811b5608dbc"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/thecodingmachine/safe/zipball/a8ab0876305a4cdaef31b2350fcb9811b5608dbc",
+                "reference": "a8ab0876305a4cdaef31b2350fcb9811b5608dbc",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.2"
+            },
+            "require-dev": {
+                "phpstan/phpstan": "^0.12",
+                "squizlabs/php_codesniffer": "^3.2",
+                "thecodingmachine/phpstan-strict-rules": "^0.12"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "0.1-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Safe\\": [
+                        "lib/",
+                        "deprecated/",
+                        "generated/"
+                    ]
+                },
+                "files": [
+                    "deprecated/apc.php",
+                    "deprecated/libevent.php",
+                    "deprecated/mssql.php",
+                    "deprecated/stats.php",
+                    "lib/special_cases.php",
+                    "generated/apache.php",
+                    "generated/apcu.php",
+                    "generated/array.php",
+                    "generated/bzip2.php",
+                    "generated/calendar.php",
+                    "generated/classobj.php",
+                    "generated/com.php",
+                    "generated/cubrid.php",
+                    "generated/curl.php",
+                    "generated/datetime.php",
+                    "generated/dir.php",
+                    "generated/eio.php",
+                    "generated/errorfunc.php",
+                    "generated/exec.php",
+                    "generated/fileinfo.php",
+                    "generated/filesystem.php",
+                    "generated/filter.php",
+                    "generated/fpm.php",
+                    "generated/ftp.php",
+                    "generated/funchand.php",
+                    "generated/gmp.php",
+                    "generated/gnupg.php",
+                    "generated/hash.php",
+                    "generated/ibase.php",
+                    "generated/ibmDb2.php",
+                    "generated/iconv.php",
+                    "generated/image.php",
+                    "generated/imap.php",
+                    "generated/info.php",
+                    "generated/ingres-ii.php",
+                    "generated/inotify.php",
+                    "generated/json.php",
+                    "generated/ldap.php",
+                    "generated/libxml.php",
+                    "generated/lzf.php",
+                    "generated/mailparse.php",
+                    "generated/mbstring.php",
+                    "generated/misc.php",
+                    "generated/msql.php",
+                    "generated/mysql.php",
+                    "generated/mysqli.php",
+                    "generated/mysqlndMs.php",
+                    "generated/mysqlndQc.php",
+                    "generated/network.php",
+                    "generated/oci8.php",
+                    "generated/opcache.php",
+                    "generated/openssl.php",
+                    "generated/outcontrol.php",
+                    "generated/password.php",
+                    "generated/pcntl.php",
+                    "generated/pcre.php",
+                    "generated/pdf.php",
+                    "generated/pgsql.php",
+                    "generated/posix.php",
+                    "generated/ps.php",
+                    "generated/pspell.php",
+                    "generated/readline.php",
+                    "generated/rpminfo.php",
+                    "generated/rrd.php",
+                    "generated/sem.php",
+                    "generated/session.php",
+                    "generated/shmop.php",
+                    "generated/simplexml.php",
+                    "generated/sockets.php",
+                    "generated/sodium.php",
+                    "generated/solr.php",
+                    "generated/spl.php",
+                    "generated/sqlsrv.php",
+                    "generated/ssdeep.php",
+                    "generated/ssh2.php",
+                    "generated/stream.php",
+                    "generated/strings.php",
+                    "generated/swoole.php",
+                    "generated/uodbc.php",
+                    "generated/uopz.php",
+                    "generated/url.php",
+                    "generated/var.php",
+                    "generated/xdiff.php",
+                    "generated/xml.php",
+                    "generated/xmlrpc.php",
+                    "generated/yaml.php",
+                    "generated/yaz.php",
+                    "generated/zip.php",
+                    "generated/zlib.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "description": "PHP core functions that throw exceptions instead of returning FALSE on error",
+            "support": {
+                "issues": "https://github.com/thecodingmachine/safe/issues",
+                "source": "https://github.com/thecodingmachine/safe/tree/v1.3.3"
+            },
+            "time": "2020-10-28T17:51:34+00:00"
+        },
         {
             "name": "theseer/tokenizer",
             "version": "1.2.1",
@@ -5023,5 +5783,5 @@
     "platform-overrides": {
         "php": "7.4.26"
     },
-    "plugin-api-version": "2.1.0"
+    "plugin-api-version": "2.2.0"
 }
diff --git a/infection.json b/infection.json
new file mode 100644
index 00000000..93d14341
--- /dev/null
+++ b/infection.json
@@ -0,0 +1,17 @@
+{
+  "ignoreMsiWithNoMutations": true,
+  "logs": {
+    "text": ".build/infection/infection-log.txt"
+  },
+  "minMsi": 92,
+  "minCoveredMsi": 92,
+  "phpUnit": {
+    "configDir": "test\/Unit"
+  },
+  "source": {
+    "directories": [
+      "src"
+    ]
+  },
+  "timeout": 10
+}