Add mts and cts to test match and test regex (#14584)

Author: yinm

.eslintrc.cjs

@@ -160,6 +160,7 @@ module.exports = {
         'e2e/failures/macros.js',
         'e2e/test-in-root/*.js',
         'e2e/test-match/test-suites/*',
+        'e2e/test-match-default/dot-spec-tests/*',
         'packages/test-utils/src/ConditionalTest.ts',
       ],
       env: {'jest/globals': true},

CHANGELOG.md

@@ -3,6 +3,7 @@
 ### Features
 
 - `[jest-config]` [**BREAKING**] Add `mts` and `cts` to default `moduleFileExtensions` config ([#14369](https://github.com/facebook/jest/pull/14369))
+- `[jest-config]` [**BREAKING**] Update `testMatch` and `testRegex` default option for supporting `mjs`, `cjs`, `mts`, and `cts` ([#14584](https://github.com/jestjs/jest/pull/14584))
 - `[@jest/core]` [**BREAKING**] Group together open handles with the same stack trace ([#13417](https://github.com/jestjs/jest/pull/13417), & [#14543](https://github.com/jestjs/jest/pull/14543))
 - `[@jest/core, @jest/test-sequencer]` [**BREAKING**] Exposes `globalConfig` & `contexts` to `TestSequencer` ([#14535](https://github.com/jestjs/jest/pull/14535), & [#14543](https://github.com/jestjs/jest/pull/14543))
 - `[jest-environment-jsdom]` [**BREAKING**] Upgrade JSDOM to v22 ([#13825](https://github.com/jestjs/jest/pull/13825))

docs/Configuration.md

@@ -2000,7 +2000,7 @@ This does not change the exit code in the case of Jest errors (e.g. invalid conf
 
 ### `testMatch` \[array<string>]
 
-(default: `[ "**/__tests__/**/*.[jt]s?(x)", "**/?(*.)+(spec|test).[jt]s?(x)" ]`)
+(default: `[ "**/__tests__/**/*.?([mc])[jt]s?(x)", "**/?(*.)+(spec|test).?([mc])[jt]s?(x)" ]`)
 
 The glob patterns Jest uses to detect test files. By default it looks for `.js`, `.jsx`, `.ts` and `.tsx` files inside of `__tests__` folders, as well as any files with a suffix of `.test` or `.spec` (e.g. `Component.test.js` or `Component.spec.js`). It will also find files called `test.js` or `spec.js`.
 
@@ -2024,7 +2024,7 @@ These pattern strings match against the full path. Use the `<rootDir>` string to
 
 ### `testRegex` \[string | array&lt;string&gt;]
 
-Default: `(/__tests__/.*|(\\.|/)(test|spec))\\.[jt]sx?$`
+Default: `(/__tests__/.*|(\\.|/)(test|spec))\\.[mc]?[jt]sx?$`
 
 The pattern or patterns Jest uses to detect test files. By default it looks for `.js`, `.jsx`, `.ts` and `.tsx` files inside of `__tests__` folders, as well as any files with a suffix of `.test` or `.spec` (e.g. `Component.test.js` or `Component.spec.js`). It will also find files called `test.js` or `spec.js`. See also [`testMatch` [array&lt;string&gt;]](#testmatch-arraystring), but note that you cannot specify both options.
 

e2e/__tests__/__snapshots__/showConfig.test.ts.snap

@@ -72,8 +72,8 @@ exports[`--showConfig outputs config info and exits 1`] = `
       "testEnvironmentOptions": {},
       "testLocationInResults": false,
       "testMatch": [
-        "**/__tests__/**/*.[jt]s?(x)",
-        "**/?(*.)+(spec|test).[tj]s?(x)"
+        "**/__tests__/**/*.?([mc])[jt]s?(x)",
+        "**/?(*.)+(spec|test).?([mc])[jt]s?(x)"
       ],
       "testPathIgnorePatterns": [
         "/node_modules/"

e2e/__tests__/__snapshots__/testMatchDefault.test.ts.snap

@@ -0,0 +1,9 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`testMatch should able to match file with \`?([mc])[jt]s?(x)\` by default 1`] = `
+"Test Suites: 16 passed, 16 total
+Tests:       16 passed, 16 total
+Snapshots:   0 total
+Time:        <<REPLACED>>
+Ran all test suites."
+`;

e2e/__tests__/testMatchDefault.test.ts

@@ -0,0 +1,16 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+import {extractSummary} from '../Utils';
+import runJest from '../runJest';
+
+it('testMatch should able to match file with `?([mc])[jt]s?(x)` by default', () => {
+  const result = runJest('test-match-default');
+  expect(result.exitCode).toBe(0);
+  const {summary} = extractSummary(result.stderr);
+  expect(summary).toMatchSnapshot();
+});

e2e/test-match-default/__tests__/test.cjs

@@ -0,0 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+test('cjs extension', () => {
+  expect(1).toBe(1);
+});

e2e/test-match-default/__tests__/test.cts

@@ -0,0 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+test('cts extension', () => {
+  expect(1).toBe(1);
+});

e2e/test-match-default/__tests__/test.js

@@ -0,0 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+test('js extension', () => {
+  expect(1).toBe(1);
+});

e2e/test-match-default/__tests__/test.jsx

@@ -0,0 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+test('jsx extension', () => {
+  expect(1).toBe(1);
+});