test_runner: support typescript files in default glob

doc/api/test.md

@@ -422,12 +422,22 @@ node --test
 
 By default, Node.js will run all files matching these patterns:
 
-* `**/*.test.?(c|m)js`
-* `**/*-test.?(c|m)js`
-* `**/*_test.?(c|m)js`
-* `**/test-*.?(c|m)js`
-* `**/test.?(c|m)js`
-* `**/test/**/*.?(c|m)js`
+* `**/*.test.{cjs,mjs,js}`
+* `**/*-test.{cjs,mjs,js}`
+* `**/*_test.{cjs,mjs,js}`
+* `**/test-*.{cjs,mjs,js}`
+* `**/test.{cjs,mjs,js}`
+* `**/test/**/*.{cjs,mjs,js}`
+
+When [`--experimental-strip-types`][] is supplied, the following
+additional patterns are matched:
+
+* `**/*.test.{cts,mts,ts}`
+* `**/*-test.{cts,mts,ts}`
+* `**/*_test.{cts,mts,ts}`
+* `**/test-*.{cts,mts,ts}`
+* `**/test.{cts,mts,ts}`
+* `**/test/**/*.{cts,mts,ts}`
 
 Alternatively, one or more glob patterns can be provided as the
 final argument(s) to the Node.js command, as shown below.
@@ -3562,6 +3572,7 @@ added:
 Can be used to abort test subtasks when the test has been aborted.
 
 [TAP]: https://testanything.org/
+[`--experimental-strip-types`]: cli.md#--experimental-strip-types
 [`--experimental-test-coverage`]: cli.md#--experimental-test-coverage
 [`--experimental-test-module-mocks`]: cli.md#--experimental-test-module-mocks
 [`--experimental-test-snapshots`]: cli.md#--experimental-test-snapshots

lib/internal/test_runner/utils.js

@@ -54,8 +54,11 @@ const kMultipleCallbackInvocations = 'multipleCallbackInvocations';
 const kRegExpPattern = /^\/(.*)\/([a-z]*)$/;
 
 const kPatterns = ['test', 'test/**/*', 'test-*', '*[._-]test'];
-const kDefaultPattern = `**/{${ArrayPrototypeJoin(kPatterns, ',')}}.?(c|m)js`;
-
+const kFileExtensions = ['js', 'mjs', 'cjs'];
+if (getOptionValue('--experimental-strip-types')) {
+  ArrayPrototypePush(kFileExtensions, 'ts', 'mts', 'cts');
+}
+const kDefaultPattern = `**/{${ArrayPrototypeJoin(kPatterns, ',')}}.{${ArrayPrototypeJoin(kFileExtensions, ',')}}`;
 
 function createDeferredCallback() {
   let calledCount = 0;

test/fixtures/test-runner/matching-patterns/typescript-test.cts

@@ -0,0 +1,4 @@
+const test = require('node:test');
+
+// 'as string' ensures that type stripping actually occurs
+test('this should pass' as string);

test/fixtures/test-runner/matching-patterns/typescript-test.mts

@@ -0,0 +1,4 @@
+import { test } from 'node:test';
+
+// 'as string' ensures that type stripping actually occurs
+test('this should pass' as string);

test/fixtures/test-runner/matching-patterns/typescript-test.ts

@@ -0,0 +1,4 @@
+const test = require('node:test');
+
+// 'as string' ensures that type stripping actually occurs
+test('this should pass' as string);

test/parallel/test-runner-cli.js

@@ -57,6 +57,27 @@ for (const isolation of ['none', 'process']) {
     assert.match(stdout, /ok 1 - this should pass/);
     assert.match(stdout, /ok 2 - this should pass/);
     assert.match(stdout, /ok 3 - this should pass/);
+    // Doesn't match the TypeScript files
+    assert.doesNotMatch(stdout, /ok 4 - this should pass/);
+  }
+
+  for (const type of ['strip', 'transform']) {
+    // Should match files with "-test.(c|m)(t|j)s" suffix when typescript support is enabled
+    const args = ['--test', '--test-reporter=tap', '--no-warnings',
+                  `--experimental-${type}-types`, `--experimental-test-isolation=${isolation}`];
+    const child = spawnSync(process.execPath, args, { cwd: join(testFixtures, 'matching-patterns') });
+
+    assert.strictEqual(child.status, 0);
+    assert.strictEqual(child.signal, null);
+    assert.strictEqual(child.stderr.toString(), '');
+    const stdout = child.stdout.toString();
+
+    assert.match(stdout, /ok 1 - this should pass/);
+    assert.match(stdout, /ok 2 - this should pass/);
+    assert.match(stdout, /ok 3 - this should pass/);
+    assert.match(stdout, /ok 4 - this should pass/);
+    assert.match(stdout, /ok 5 - this should pass/);
+    assert.match(stdout, /ok 6 - this should pass/);
   }
 
   {