added tests for most common cases

.gitignore

@@ -0,0 +1 @@
+node_modules

jest.config.js

@@ -0,0 +1,180 @@
+// For a detailed explanation regarding each configuration property, visit:
+// https://jestjs.io/docs/en/configuration.html
+
+module.exports = {
+  // All imported modules in your tests should be mocked automatically
+  // automock: false,
+
+  // Stop running tests after the first failure
+  // bail: false,
+
+  // Respect "browser" field in package.json when resolving modules
+  // browser: false,
+
+  // The directory where Jest should store its cached dependency information
+  // cacheDirectory: "C:\\Users\\fqborges\\AppData\\Local\\Temp\\jest",
+
+  // Automatically clear mock calls and instances between every test
+  // clearMocks: false,
+
+  // Indicates whether the coverage information should be collected while executing the test
+  // collectCoverage: false,
+
+  // An array of glob patterns indicating a set of files for which coverage information should be collected
+  // collectCoverageFrom: null,
+
+  // The directory where Jest should output its coverage files
+  // coverageDirectory: null,
+
+  // An array of regexp pattern strings used to skip coverage collection
+  // coveragePathIgnorePatterns: [
+  //   "\\\\node_modules\\\\"
+  // ],
+
+  // A list of reporter names that Jest uses when writing coverage reports
+  // coverageReporters: [
+  //   "json",
+  //   "text",
+  //   "lcov",
+  //   "clover"
+  // ],
+
+  // An object that configures minimum threshold enforcement for coverage results
+  // coverageThreshold: null,
+
+  // Make calling deprecated APIs throw helpful error messages
+  // errorOnDeprecated: false,
+
+  // Force coverage collection from ignored files usin a array of glob patterns
+  // forceCoverageMatch: [],
+
+  // A path to a module which exports an async function that is triggered once before all test suites
+  // globalSetup: null,
+
+  // A path to a module which exports an async function that is triggered once after all test suites
+  // globalTeardown: null,
+
+  // A set of global variables that need to be available in all test environments
+  // globals: {},
+
+  // An array of directory names to be searched recursively up from the requiring module's location
+  // moduleDirectories: [
+  //   "node_modules"
+  // ],
+
+  // An array of file extensions your modules use
+  // moduleFileExtensions: [
+  //   "js",
+  //   "json",
+  //   "jsx",
+  //   "node"
+  // ],
+
+  // A map from regular expressions to module names that allow to stub out resources with a single module
+  // moduleNameMapper: {},
+
+  // An array of regexp pattern strings, matched against all module paths before considered 'visible' to the module loader
+  // modulePathIgnorePatterns: [],
+
+  // Activates notifications for test results
+  // notify: false,
+
+  // An enum that specifies notification mode. Requires { notify: true }
+  // notifyMode: "always",
+
+  // A preset that is used as a base for Jest's configuration
+  // preset: null,
+
+  // Run tests from one or more projects
+  // projects: null,
+
+  // Use this configuration option to add custom reporters to Jest
+  // reporters: undefined,
+
+  // Automatically reset mock state between every test
+  // resetMocks: false,
+
+  // Reset the module registry before running each individual test
+  // resetModules: false,
+
+  // A path to a custom resolver
+  // resolver: null,
+
+  // Automatically restore mock state between every test
+  // restoreMocks: false,
+
+  // The root directory that Jest should scan for tests and modules within
+  // rootDir: null,
+
+  // A list of paths to directories that Jest should use to search for files in
+  // roots: [
+  //   "<rootDir>"
+  // ],
+
+  // Allows you to use a custom runner instead of Jest's default test runner
+  // runner: "jest-runner",
+
+  // The paths to modules that run some code to configure or set up the testing environment before each test
+  // setupFiles: [],
+
+  // The path to a module that runs some code to configure or set up the testing framework before each test
+  // setupTestFrameworkScriptFile: null,
+
+  // A list of paths to snapshot serializer modules Jest should use for snapshot testing
+  // snapshotSerializers: [],
+
+  // The test environment that will be used for testing
+  testEnvironment: "node",
+
+  // Options that will be passed to the testEnvironment
+  // testEnvironmentOptions: {},
+
+  // Adds a location field to test results
+  // testLocationInResults: false,
+
+  // The glob patterns Jest uses to detect test files
+  // testMatch: [
+  //   "**/__tests__/**/*.js?(x)",
+  //   "**/?(*.)+(spec|test).js?(x)"
+  // ],
+
+  // An array of regexp pattern strings that are matched against all test paths, matched tests are skipped
+  // testPathIgnorePatterns: [
+  //   "\\\\node_modules\\\\"
+  // ],
+
+  // The regexp pattern Jest uses to detect test files
+  // testRegex: "",
+
+  // This option allows the use of a custom results processor
+  // testResultsProcessor: null,
+
+  // This option allows use of a custom test runner
+  // testRunner: "jasmine2",
+
+  // This option sets the URL for the jsdom environment. It is reflected in properties such as location.href
+  // testURL: "http://localhost",
+
+  // Setting this value to "fake" allows the use of fake timers for functions such as "setTimeout"
+  // timers: "real",
+
+  // A map from regular expressions to paths to transformers
+  // transform: null,
+
+  // An array of regexp pattern strings that are matched against all source file paths, matched files will skip transformation
+  // transformIgnorePatterns: [
+  //   "\\\\node_modules\\\\"
+  // ],
+
+  // An array of regexp pattern strings that are matched against all modules before the module loader will automatically return a mock for them
+  // unmockedModulePathPatterns: undefined,
+
+  // Indicates whether each individual test should be reported during the run
+  // verbose: null,
+
+  // An array of regexp patterns that are matched against all source file paths before re-running tests in watch mode
+  // watchPathIgnorePatterns: [],
+
+  // Whether to use watchman for file crawling
+  // watchman: true,
+};

package.json

@@ -4,7 +4,7 @@
   "description": "Package to fix style (css/sass/less) only entries generating a extra js file.",
   "main": "index.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "jest --detectOpenHandles"
   },
   "keywords": [
     "webpack",
@@ -15,5 +15,15 @@
   ],
   "author": "fqborges (https://github.com/fqborges)",
   "license": "ISC",
-  "repository": "github:fqborges/webpack-fix-style-only-entries"
+  "repository": "github:fqborges/webpack-fix-style-only-entries",
+  "devDependencies": {
+    "css-loader": "^2.1.0",
+    "fs": "^0.0.1-security",
+    "jest": "^23.6.0",
+    "mini-css-extract-plugin": "^0.5.0",
+    "moment": "^2.23.0",
+    "rimraf": "^2.6.2",
+    "webpack": "^4.28.2",
+    "webpack-merge": "^4.1.5"
+  }
 }

test/.gitignore

@@ -0,0 +1 @@
+outputs

test/cases/multi-js-entry-css-entry-extensions-do-not-match/expected.json

@@ -0,0 +1 @@
+["script.js", "style.js", "style.css"]

test/cases/multi-js-entry-css-entry-extensions-do-not-match/script.js

@@ -0,0 +1 @@
+console.log("hello");

test/cases/multi-js-entry-css-entry-extensions-do-not-match/style.css

@@ -0,0 +1,5 @@
+html,
+body {
+  width: 100%;
+  height: 100%;
+}

test/cases/multi-js-entry-css-entry-extensions-do-not-match/webpack.config.js

@@ -0,0 +1,21 @@
+const WebpackFixStyleOnlyEntries = require("../../../index.js");
+
+const MiniCssExtractPlugin = require("mini-css-extract-plugin");
+
+module.exports = {
+  entry: { script: "./script.js", style: "./style.css" },
+  module: {
+    rules: [
+      {
+        test: /\.css$/,
+        use: [MiniCssExtractPlugin.loader, "css-loader"],
+      },
+    ],
+  },
+  plugins: [
+    new WebpackFixStyleOnlyEntries({ extensions: ["foo", "bar"] }),
+    new MiniCssExtractPlugin({
+      filename: "[name].css",
+    }),
+  ],
+};

test/cases/multi-js-entry-css-entry/expected.json

@@ -0,0 +1 @@
+["script.js", "style.css"]

test/cases/multi-js-entry-css-entry/script.js

@@ -0,0 +1 @@
+console.log("hello");

test/cases/multi-js-entry-css-entry/style.css

@@ -0,0 +1,5 @@
+html,
+body {
+  width: 100%;
+  height: 100%;
+}

test/cases/multi-js-entry-css-entry/webpack.config.js

@@ -0,0 +1,21 @@
+const WebpackFixStyleOnlyEntries = require("../../../index.js");
+
+const MiniCssExtractPlugin = require("mini-css-extract-plugin");
+
+module.exports = {
+  entry: { script: "./script.js", style: "./style.css" },
+  module: {
+    rules: [
+      {
+        test: /\.css$/,
+        use: [MiniCssExtractPlugin.loader, "css-loader"],
+      },
+    ],
+  },
+  plugins: [
+    new WebpackFixStyleOnlyEntries(),
+    new MiniCssExtractPlugin({
+      filename: "[name].css",
+    }),
+  ],
+};

test/cases/multi-page+styles/apage.css

@@ -0,0 +1,3 @@
+#a-page {
+  background-color: "blue";
+}

test/cases/multi-page+styles/apage.js

@@ -0,0 +1 @@
+console.log('a-page');

test/cases/multi-page+styles/bpage.css

@@ -0,0 +1,3 @@
+#b-page {
+  background-color: "red";
+}

test/cases/multi-page+styles/bpage.js

@@ -0,0 +1 @@
+console.log('b-page');

test/cases/multi-page+styles/common.css

@@ -0,0 +1,5 @@
+html,
+body {
+  width: 100%;
+  height: 100%;
+}

test/cases/multi-page+styles/expected.json

@@ -0,0 +1 @@
+["apage.js", "bpage.js", "styles.css"]

test/cases/multi-page+styles/webpack.config.js

@@ -0,0 +1,37 @@
+const WebpackFixStyleOnlyEntries = require("../../../index.js");
+
+const MiniCssExtractPlugin = require("mini-css-extract-plugin");
+
+module.exports = {
+  entry: {
+    apage: ["./apage.js"],
+    bpage: ["./bpage.js"],
+    styles: ["./apage.css", "./bpage.css", "./common.css"],
+  },
+  module: {
+    rules: [
+      {
+        test: /\.css$/,
+        use: [MiniCssExtractPlugin.loader, "css-loader"],
+      },
+    ],
+  },
+  optimization: {
+    splitChunks: {
+      chunks: "all",
+      cacheGroups: {
+        vendors: {
+          test: /[\\/]node_modules[\\/]/,
+          name: "vendor",
+          chunks: "all",
+        },
+      },
+    },
+  },
+  plugins: [
+    new WebpackFixStyleOnlyEntries(),
+    new MiniCssExtractPlugin({
+      filename: "[name].css",
+    }),
+  ],
+};

test/cases/single-js+css-entry/expected.json

@@ -0,0 +1 @@
+["main.css", "main.js"]

test/cases/single-js+css-entry/index.css

@@ -0,0 +1,5 @@
+html,
+body {
+  width: 100%;
+  height: 100%;
+}

test/cases/single-js+css-entry/index.js

@@ -0,0 +1 @@
+console.log("hello");

test/cases/single-js+css-entry/webpack.config.js

@@ -0,0 +1,21 @@
+const WebpackFixStyleOnlyEntries = require("../../../index.js");
+
+const MiniCssExtractPlugin = require("mini-css-extract-plugin");
+
+module.exports = {
+  entry: ["./index.js", "./index.css"],
+  module: {
+    rules: [
+      {
+        test: /\.css$/,
+        use: [MiniCssExtractPlugin.loader, "css-loader"],
+      },
+    ],
+  },
+  plugins: [
+    new WebpackFixStyleOnlyEntries(),
+    new MiniCssExtractPlugin({
+      filename: "[name].css",
+    }),
+  ],
+};

test/cases/single-js-entry/expected.json

@@ -0,0 +1 @@
+["main.js"]

test/cases/single-js-entry/index.js

@@ -0,0 +1 @@
+console.log("hello");

test/cases/single-js-entry/webpack.config.js

@@ -0,0 +1,6 @@
+const WebpackFixStyleOnlyEntries = require("../../../index.js");
+
+module.exports = {
+  entry: "./index",
+  plugins: [new WebpackFixStyleOnlyEntries()],
+};

test/cases/vendor+multi-js-entry-css-entry/expected.json

@@ -0,0 +1 @@
+["script.js", "style.css", "vendor.js"]

test/cases/vendor+multi-js-entry-css-entry/script.js

@@ -0,0 +1,2 @@
+const moment = require("moment");
+console.log(moment().toString('L'));

test/cases/vendor+multi-js-entry-css-entry/style.css

@@ -0,0 +1,5 @@
+html,
+body {
+  width: 100%;
+  height: 100%;
+}