Create a simple test for the macro

Author: kylemh

Diff for: __snapshots__/require-context.macro.test.js.snap

@@ -0,0 +1,15 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`require-context.macro macros 1. macros: 1. macros 1`] = `
+"
+import requireContext from './macro';
+
+requireContext('../src/components', true, /.stories.js$/);
+
+      ↓ ↓ ↓ ↓ ↓ ↓
+
+\\"use strict\\";
+
+__requireContext(__dirname, '../src/components', true, /.stories.js$/);
+"
+`;

Diff for: babel.config.js

@@ -0,0 +1,14 @@
+'use strict';
+
+module.exports = {
+  presets: [
+    [
+      '@babel/preset-env', {
+        targets: {
+          node: true,
+        }
+      }
+    ]
+  ],
+  plugins: ['macros'],
+};

Diff for: 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: "/var/folders/8y/bvd9gv354h5f76mmxkt_10q00000gp/T/jest_dy",
+
+  // 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: 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,
+};

Diff for: package.json

@@ -4,7 +4,7 @@
   "description": "A Babel Macro for the require-context plugin",
   "main": "macro/index.js",
   "scripts": {
-    "test": "test"
+    "test": "jest"
   },
   "repository": {
     "type": "git",
@@ -21,6 +21,16 @@
     "url": "https://github.com/storybooks/require-context.macro/issues"
   },
   "homepage": "https://github.com/storybooks/require-context.macro#readme",
+  "devDependencies": {
+    "@babel/core": "^7.2.2",
+    "@babel/preset-env": "^7.2.0",
+    "babel-core": "^7.0.0-bridge.0",
+    "babel-jest": "^23.6.0",
+    "babel-plugin-macros": "^2.4.2",
+    "babel-plugin-tester": "^5.5.2",
+    "jest": "^23.6.0",
+    "regenerator-runtime": "^0.13.1"
+  },
   "peerDependencies": {
     "babel-plugin-macros": "^2.4.2"
   }

Diff for: require-context.macro.test.js

@@ -0,0 +1,17 @@
+import pluginTester from 'babel-plugin-tester';
+import plugin from 'babel-plugin-macros';
+
+describe('require-context.macro', () => {
+  pluginTester({
+    plugin,
+    snapshot: true,
+    babelOptions: { filename: __filename },
+    tests: [
+      `
+      import requireContext from './macro';
+
+      requireContext('../src/components', true, /\.stories\.js$/);
+    `,
+    ],
+  });
+});