feat: configuration de test avec jest

Author: MartinWeb

app/components/Home/home.component.spec.ts

@@ -0,0 +1,7 @@
+import { HeaderComponent } from "./Header.component";
+
+describe('headercomponent', () => {
+    test('should have valid snapshot', () => {
+        expect(HeaderComponent.template).toMatchSnapshot();
+    });
+});

app/components/Layout/Header/Header.component.spec.ts

@@ -0,0 +1,7 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`headercomponent should have valid snapshot 1`] = `
+"<header>
+    <img src="./chucknorris_logo.png" alt="chucknorris" />
+</header>"
+`;

app/components/Layout/Header/__snapshots__/Header.component.spec.ts.snap

@@ -0,0 +1 @@
+module.exports = 'test-file-stub';

app/mocks/file-mock.js

@@ -0,0 +1,10 @@
+module.exports = {
+    process(src) {
+        const escapedSrc = src
+            .replace(/`/g, '\\`')
+            .replace(/\\/g, '\\\\')
+            .replace(/\$(?=\{.*?\})/g, '\\$');
+
+        return { code: `module.exports = \`${escapedSrc}\`` };
+    },
+};

html-loader-preprocessor.js

@@ -0,0 +1,186 @@
+// 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\\S641122\\AppData\\Local\\Temp\\jest",
+
+    // Automatically clear mock calls and instances between every test
+    clearMocks: true,
+
+    // 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: [
+        'app/**/*.(js|jsx|ts|tsx)',
+        '!app/**/*.spec.(js|jsx|ts|tsx)',
+        '!app/**/*.html',
+    ],
+
+    // The directory where Jest should output its coverage files
+    coverageDirectory: 'coverage\\Jest',
+
+    // An array of regexp pattern strings used to skip coverage collection
+    // coveragePathIgnorePatterns: [
+    //   "\\\\node_modules\\\\"
+    // ],
+
+    coverageProvider: 'v8',
+
+    // A list of reporter names that Jest uses when writing coverage reports
+    coverageReporters: ['text', 'lcov'],
+
+    // 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: {
+        'ts-jest': {
+            diagnostics: {
+                pathRegex: /\.(spec|test)\.(ts|tsx)$/,
+                warnOnly: true,
+            },
+            isolatedModules: true,
+        },
+    },
+
+    // An array of directory names to be searched recursively up from the requiring module's location
+    // moduleDirectories: [
+    //   "node_modules"
+    // ],
+
+    // An array of file extensions your modules use
+    moduleFileExtensions: ['ts', 'tsx', 'js', 'json', 'jsx', 'node', 'html'],
+
+    modulePaths: ['<rootDir>/app'],
+
+    // A map from regular expressions to module names that allow to stub out resources with a single module
+    moduleNameMapper: {
+        '\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga|css|scss)$': '<rootDir>/app/mocks/file-mock.js',
+        //"\\.html$": "<rootDir>/App/mocks/file-mock.js
+        //'^uuid$': require.resolve('uuid'),
+    },
+
+    // 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
+    // setupFilesAfterEnv: ['<rootDir>/index-specrunner.js'],
+
+    // 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: 'jest-environment-jsdom',
+
+    // 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)"
+    // ],
+    testMatch: ['**/__tests__/**/*.(j|t)s?(x)', '**/?(*.)+(spec|test).(j|t)s?(x)'],
+
+    // An array of regexp pattern strings that are matched against all test paths, matched tests are skipped
+    testPathIgnorePatterns: ['<rootDir>/node_modules'],
+
+    // The regexp pattern Jest uses to detect test files
+    // testRegex: "",
+
+    // This option allows use of a custom test runner
+    // testRunner: "jasmine2",
+
+    // 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: {
+        '^.+\\.js$': 'babel-jest',
+        '^.+\\.(ts|tsx)$': 'ts-jest',
+        '^.+\\.html$': '<rootDir>/html-loader-preprocessor.js',
+    }, //,
+    // 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: true,
+
+    // 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,
+};