Jest testing (#133)

* moved all the existing tests to Jest
* finalised Jest tests for “utils” removing assert dependency
* finalised Jest tests for “register” removing assert dependency + moved tests under correct folder
* finalised Jest tests for “transform” removing assert dependency + moved tests under correct folder + removed extra file
* updated path for “service” files/folders
* removed output folder
* updated the paths to ignore in the Jest config in package.json
* finalised Jest tests for “clean” removing assert dependency + other small changes
* added “__output” to the list of folders ignored by Jest
* some tunings + more tests
* more tests cleanup
* fixed test for exportPlatform
* fixed last tests, and now all tests are green!
* Added first snapshot tests! Yay!
* added mock for dates to avoid failing snapshots tests
* updated tests
* first attempt to fix the UTC date problem on CI (reference: boblauer/MockDate#9)
* second attempt to fix the UTC date problem on CI
* removed the TZ=UTC env environment to test if is really needed
* updated all the occurrences of new Date in the templates
* restored linting before running the tests suite
* code style fix
* fixed wrong porting of the test for buildAllPlatforms

test/configs/test.json → __tests__/__configs/test.json

@@ -1,10 +1,10 @@
 {
-  "source": ["test/properties/**/*.json"],
+  "source": ["__tests__/__properties/**/*.json"],
   "platforms": {
     "web": {
       "transformGroup": "web",
       "prefix": "smop",
-      "buildPath": "test/output/web/",
+      "buildPath": "__tests__/__output/web/",
       "files": [
         {
           "destination": "_icons.css",
@@ -21,7 +21,7 @@
     "scss": {
       "transformGroup": "scss",
       "prefix": "smop",
-      "buildPath": "test/output/scss/",
+      "buildPath": "__tests__/__output/scss/",
       "files": [
         {
           "destination": "_icons.scss",
@@ -35,7 +35,7 @@
     "less": {
       "transformGroup": "less",
       "prefix": "smop",
-      "buildPath": "test/output/less/",
+      "buildPath": "__tests__/__output/less/",
       "files": [
         {
           "destination": "_icons.less",
@@ -48,7 +48,7 @@
     },
     "android": {
       "transformGroup": "android",
-      "buildPath": "test/output/",
+      "buildPath": "__tests__/__output/",
       "files": [
         {
           "destination": "android/colors.xml",
@@ -67,7 +67,7 @@
     },
     "ios": {
       "transformGroup": "ios",
-      "buildPath": "test/output/ios/",
+      "buildPath": "__tests__/__output/ios/",
       "files": [
         {
           "destination": "style_dictionary.plist",

test/helpers.js → __tests__/__helpers.js

@@ -15,7 +15,7 @@ var fs   = require('fs-extra');
 
 module.exports = {
   clearOutput: function() {
-    fs.emptyDirSync('test/output');
+    fs.emptyDirSync('__tests__/__output');
   },
 
   fileToJSON: function(path) {

__tests__/__properties/font.json

@@ -0,0 +1,9 @@
+{
+  "asset": {
+    "font": {
+      "icon": {
+        "value": "./test/__assets/fonts/scapp_icons-regular.ttf"
+      }
+    }
+  }
+}

__tests__/__properties/images/flags/us.json

@@ -0,0 +1,22 @@
+{
+  "asset": {
+    "image": {
+      "flag": {
+        "us": {
+          "mdpi": {
+            "value": "__tests__/__assets/images/mdpi/flag_us_base.png"
+          },
+          "hdpi": {
+            "value": "__tests__/__assets/images/hdpi/flag_us_base.png"
+          },
+          "xhdpi": {
+            "value": "__tests__/__assets/images/xhdpi/flag_us_base.png"
+          },
+          "xxhdpi": {
+            "value": "__tests__/__assets/images/xxhdpi/flag_us_base.png"
+          }
+        }
+      }
+    }
+  }
+}

__tests__/buildAllPlatforms.test.js

@@ -0,0 +1,40 @@
+/*
+ * Copyright 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance with
+ * the License. A copy of the License is located at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * or in the "license" file accompanying this file. This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions
+ * and limitations under the License.
+ */
+
+var helpers = require('./__helpers');
+var StyleDictionary = require('../index');
+
+describe('buildAllPlatforms', () => {
+
+  beforeEach(() => {
+    helpers.clearOutput();
+  });
+
+  afterEach(() => {
+    helpers.clearOutput();
+  });
+
+  it('should work with json config', () => {
+    var StyleDictionaryExtended = StyleDictionary.extend(__dirname + '/__configs/test.json');
+    StyleDictionaryExtended.buildAllPlatforms();
+    expect(helpers.fileExists('./__tests__/__output/web/_icons.css')).toBeTruthy();
+    expect(helpers.fileExists('./__tests__/__output/android/colors.xml')).toBeTruthy();
+  });
+
+  it('should work with js config', () => {
+    var StyleDictionaryExtended = StyleDictionary.extend(__dirname + '/__configs/test.js');
+    StyleDictionaryExtended.buildAllPlatforms();
+    expect(helpers.fileExists('./__tests__/__output/web/_icons.css')).toBeTruthy();
+    expect(helpers.fileExists('./__tests__/__output/android/colors.xml')).toBeTruthy();
+  });
+});

__tests__/buildFile.test.js

@@ -0,0 +1,59 @@
+/*
+ * Copyright 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance with
+ * the License. A copy of the License is located at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * or in the "license" file accompanying this file. This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions
+ * and limitations under the License.
+ */
+
+var buildFile = require('../lib/buildFile');
+var helpers   = require('./__helpers');
+
+function format() {
+  return "hi";
+}
+
+describe('buildFile', () => {
+
+  beforeEach(() => {
+    helpers.clearOutput();
+  });
+
+  afterEach(() => {
+    helpers.clearOutput();
+  });
+
+  it('should error if format doesnt exist or isnt a function', () => {
+    expect(
+      buildFile.bind(null, '__tests__/__output/test.txt', {}, {}, {})
+    ).toThrow('Please enter a valid file format');
+    expect(
+      buildFile.bind(null, '__tests__/__output/test.txt', [], {}, {})
+    ).toThrow('Please enter a valid file format');
+    expect(
+      buildFile.bind(null, '__tests__/__output/test.txt', null, {}, {})
+    ).toThrow('Please enter a valid file format');
+  });
+
+  it('should error if destination doesnt exist or isnt a string', () => {
+    expect(
+      buildFile.bind(null, {}, format, {}, {})
+    ).toThrow('Please enter a valid destination');
+    expect(
+      buildFile.bind(null, [], format, {}, {})
+    ).toThrow('Please enter a valid destination');
+    expect(
+      buildFile.bind(null, null, format, {}, {})
+    ).toThrow('Please enter a valid destination');
+  });
+
+  it('should write to a file properly', () => {
+    buildFile('test.txt', format, {buildPath: '__tests__/__output/'}, {});
+    expect(helpers.fileExists('./__tests__/__output/test.txt')).toBeTruthy();
+  });
+});

test/buildFiles.js → __tests__/buildFiles.test.js

@@ -11,10 +11,9 @@
  * and limitations under the License.
  */
 
-var assert     = require('chai').assert,
-    expect     = require('chai').expect,
-    helpers    = require('./helpers'),
-    buildFiles = require('../lib/buildFiles');
+var buildFiles = require('../lib/buildFiles');
+var helpers = require('./__helpers');
+var _ = require('lodash');
 
 var dictionary = {
   properties: {
@@ -26,7 +25,7 @@ var dictionary = {
 var platform = {
   files: [
     {
-      destination: 'test/output/test.json',
+      destination: '__tests__/__output/test.json',
       format: function(dictionary) {
         return JSON.stringify(dictionary.properties)
       }
@@ -35,7 +34,7 @@ var platform = {
 };
 
 var platformWithBuildPath = {
-  buildPath: 'test/output/',
+  buildPath: '__tests__/__output/',
   files: [
     {
       destination: 'test.json',
@@ -47,7 +46,7 @@ var platformWithBuildPath = {
 };
 
 var platformWithFilter = {
-  buildPath: 'test/output/',
+  buildPath: '__tests__/__output/',
   files: [
     {
       destination: 'test.json',
@@ -62,7 +61,7 @@ var platformWithFilter = {
 };
 
 var platformWithoutFormatter = {
-  buildPath: 'test/output/',
+  buildPath: '__tests__/__output/',
   files: [
     {
       destination: 'test.json',
@@ -71,7 +70,7 @@ var platformWithoutFormatter = {
 };
 
 var platformWithBadBuildPath = {
-  buildPath: 'test/output',
+  buildPath: '__tests__/__output',
   files: [
     {
       destination: 'test.json',
@@ -82,42 +81,47 @@ var platformWithBadBuildPath = {
   ]
 };
 
-describe('buildFiles', function() {
-  beforeEach(function() {
+describe('buildFiles', () => {
+
+  beforeEach(() => {
     helpers.clearOutput();
   });
 
-  it('should throw if build path doesn\'t have a trailing slash', function() {
-    assert.throws(
+  afterEach(() => {
+    helpers.clearOutput();
+  });
+
+  it('should throw if build path doesn\'t have a trailing slash', () => {
+    expect(
       buildFiles.bind(null, dictionary, platformWithBadBuildPath),
-      Error,
-      'Build path must end in a trailing slash or you will get weird file names.'
-    );
+    ).toThrow('Build path must end in a trailing slash or you will get weird file names.');
   });
 
-  it('should throw if template or formatter missing', function() {
-    assert.throws(
+  it('should throw if template or formatter missing', () => {
+    expect(
       buildFiles.bind(null, dictionary, platformWithoutFormatter),
-      Error,
-      'Please supply a template or formatter'
-    );
+    ).toThrow('Please supply a template or formatter');
   });
 
-  it('should work without buildPath', function() {
+  it('should work without buildPath', () => {
     buildFiles( dictionary, platform );
-    assert(helpers.fileExists('./test/output/test.json'));
+    expect(helpers.fileExists('./__tests__/__output/test.json')).toBeTruthy();
   });
 
-  it('should work with buildPath', function() {
+  it('should work with buildPath', () => {
     buildFiles( dictionary, platformWithBuildPath );
-    assert(helpers.fileExists('./test/output/test.json'));
+    expect(helpers.fileExists('./__tests__/__output/test.json')).toBeTruthy();
   });
 
-  it('should work with a filter', function() {
-    buildFiles( dictionary, platformWithFilter );
-    assert(helpers.fileExists('./test/output/test.json'));
-    var output = require("./output/test.json")
-    expect(output).to.not.have.any.keys("foo")
-    expect(output).to.have.all.keys("bingo")
+  it('should work with a filter', () => {
+    buildFiles(dictionary, platformWithFilter);
+    expect(helpers.fileExists('./__tests__/__output/test.json')).toBeTruthy();
+    var output = require("./__output/test.json")
+    expect(output).toHaveProperty('bingo');
+    expect(output).not.toHaveProperty('foo');
+    _.each(output, function(property) {
+      expect(property.value).toBe('bango');
+    });
   });
+
 });