test_runner: add testNamePatterns to run api

Accept a `testNamePatterns` value in the `run` fn, and drill those
patterns to the spawned processes.

PR-URL: #47648
Reviewed-By: Moshe Atlow <[email protected]>
Reviewed-By: Benjamin Gruenbaum <[email protected]>

doc/api/test.md

@@ -709,6 +709,10 @@ unless a destination is explicitly provided.
 
 <!-- YAML
 added: v18.9.0
+changes:
+  - version: REPLACEME
+    pr-url: https://github.com/nodejs/node/pull/47628
+    description: Add a testNamePatterns option.
 -->
 
 * `options` {Object} Configuration options for running tests. The following
@@ -734,6 +738,12 @@ added: v18.9.0
     number. If a nullish value is provided, each process gets its own port,
     incremented from the primary's `process.debugPort`.
     **Default:** `undefined`.
+  * `testNamePatterns` {string|RegExp|Array} A String, RegExp or a RegExp Array,
+    that can be used to only run tests whose name matches the provided pattern.
+    Test name patterns are interpreted as JavaScript regular expressions.
+    For each test that is executed, any corresponding test hooks, such as
+    `beforeEach()`, are also run.
+    **Default:** `undefined`.
 * Returns: {TestsStream}
 
 ```mjs

lib/internal/test_runner/runner.js

@@ -1,10 +1,12 @@
 'use strict';
 const {
   ArrayFrom,
+  ArrayIsArray,
   ArrayPrototypeFilter,
   ArrayPrototypeForEach,
   ArrayPrototypeIncludes,
   ArrayPrototypeIndexOf,
+  ArrayPrototypeMap,
   ArrayPrototypePush,
   ArrayPrototypeSlice,
   ArrayPrototypeSome,
@@ -33,11 +35,13 @@ const { FilesWatcher } = require('internal/watch_mode/files_watcher');
 const console = require('internal/console/global');
 const {
   codes: {
+    ERR_INVALID_ARG_TYPE,
     ERR_TEST_FAILURE,
   },
 } = require('internal/errors');
 const { validateArray, validateBoolean, validateFunction } = require('internal/validators');
 const { getInspectPort, isUsingInspector, isInspectorMessage } = require('internal/util/inspector');
+const { isRegExp } = require('internal/util/types');
 const { kEmptyObject } = require('internal/util');
 const { createTestTree } = require('internal/test_runner/harness');
 const {
@@ -53,6 +57,7 @@ const { YAMLToJs } = require('internal/test_runner/yaml_to_js');
 const { TokenKind } = require('internal/test_runner/tap_lexer');
 
 const {
+  convertStringToRegExp,
   countCompletedTest,
   doesPathMatchFilter,
   isSupportedFileType,
@@ -137,11 +142,14 @@ function filterExecArgv(arg, i, arr) {
   !ArrayPrototypeSome(kFilterArgValues, (p) => arg === p || (i > 0 && arr[i - 1] === p) || StringPrototypeStartsWith(arg, `${p}=`));
 }
 
-function getRunArgs({ path, inspectPort }) {
+function getRunArgs({ path, inspectPort, testNamePatterns }) {
   const argv = ArrayPrototypeFilter(process.execArgv, filterExecArgv);
   if (isUsingInspector()) {
     ArrayPrototypePush(argv, `--inspect-port=${getInspectPort(inspectPort)}`);
   }
+  if (testNamePatterns) {
+    ArrayPrototypeForEach(testNamePatterns, (pattern) => ArrayPrototypePush(argv, `--test-name-pattern=${pattern}`));
+  }
   ArrayPrototypePush(argv, path);
 
   return argv;
@@ -255,9 +263,9 @@ class FileTest extends Test {
 const runningProcesses = new SafeMap();
 const runningSubtests = new SafeMap();
 
-function runTestFile(path, root, inspectPort, filesWatcher) {
+function runTestFile(path, root, inspectPort, filesWatcher, testNamePatterns) {
   const subtest = root.createSubtest(FileTest, path, async (t) => {
-    const args = getRunArgs({ path, inspectPort });
+    const args = getRunArgs({ path, inspectPort, testNamePatterns });
     const stdio = ['pipe', 'pipe', 'pipe'];
     const env = { ...process.env, NODE_TEST_CONTEXT: 'child' };
     if (filesWatcher) {
@@ -339,7 +347,7 @@ function runTestFile(path, root, inspectPort, filesWatcher) {
   return promise;
 }
 
-function watchFiles(testFiles, root, inspectPort) {
+function watchFiles(testFiles, root, inspectPort, testNamePatterns) {
   const filesWatcher = new FilesWatcher({ throttle: 500, mode: 'filter' });
   filesWatcher.on('changed', ({ owners }) => {
     filesWatcher.unfilterFilesOwnedBy(owners);
@@ -353,7 +361,7 @@ function watchFiles(testFiles, root, inspectPort) {
         await once(runningProcess, 'exit');
       }
       await runningSubtests.get(file);
-      runningSubtests.set(file, runTestFile(file, root, inspectPort, filesWatcher));
+      runningSubtests.set(file, runTestFile(file, root, inspectPort, filesWatcher, testNamePatterns));
     }, undefined, (error) => {
       triggerUncaughtException(error, true /* fromPromise */);
     }));
@@ -365,6 +373,7 @@ function run(options) {
   if (options === null || typeof options !== 'object') {
     options = kEmptyObject;
   }
+  let { testNamePatterns } = options;
   const { concurrency, timeout, signal, files, inspectPort, watch, setup } = options;
 
   if (files != null) {
@@ -376,20 +385,36 @@ function run(options) {
   if (setup != null) {
     validateFunction(setup, 'options.setup');
   }
+  if (testNamePatterns != null) {
+    if (!ArrayIsArray(testNamePatterns)) {
+      testNamePatterns = [testNamePatterns];
+    }
+    validateArray(testNamePatterns, 'options.testNamePatterns');
+    testNamePatterns = ArrayPrototypeMap(testNamePatterns, (value, i) => {
+      if (isRegExp(value)) {
+        return value;
+      }
+      const name = `options.testNamePatterns[${i}]`;
+      if (typeof value === 'string') {
+        return convertStringToRegExp(value, name);
+      }
+      throw new ERR_INVALID_ARG_TYPE(name, ['string', 'RegExp'], value);
+    });
+  }
 
   const root = createTestTree({ concurrency, timeout, signal });
   const testFiles = files ?? createTestFileList();
 
   let postRun = () => root.postRun();
   let filesWatcher;
   if (watch) {
-    filesWatcher = watchFiles(testFiles, root, inspectPort);
+    filesWatcher = watchFiles(testFiles, root, inspectPort, testNamePatterns);
     postRun = undefined;
   }
   const runFiles = () => {
     root.harness.bootstrapComplete = true;
     return SafePromiseAllSettledReturnVoid(testFiles, (path) => {
-      const subtest = runTestFile(path, root, inspectPort, filesWatcher);
+      const subtest = runTestFile(path, root, inspectPort, filesWatcher, testNamePatterns);
       runningSubtests.set(path, subtest);
       return subtest;
     });

test/fixtures/test-runner/test/skip_by_name.cjs

@@ -0,0 +1,5 @@
+'use strict';
+const test = require('node:test');
+
+test('this should be skipped');
+test('this should be executed');

test/parallel/test-runner-run.mjs

@@ -101,4 +101,20 @@ describe('require(\'node:test\').run', { concurrency: true }, () => {
     assert.strictEqual(result[11], '# todo 0\n');
     assert.match(result[12], /# duration_ms \d+\.?\d*/);
   });
+
+  it('should skip tests not matching testNamePatterns - RegExp', async () => {
+    const result = await run({ files: [join(testFixtures, 'test/skip_by_name.cjs')], testNamePatterns: [/executed/] })
+      .compose(tap)
+      .toArray();
+    assert.strictEqual(result[2], 'ok 1 - this should be skipped # SKIP test name does not match pattern\n');
+    assert.strictEqual(result[5], 'ok 2 - this should be executed\n');
+  });
+
+  it('should skip tests not matching testNamePatterns - string', async () => {
+    const result = await run({ files: [join(testFixtures, 'test/skip_by_name.cjs')], testNamePatterns: ['executed'] })
+      .compose(tap)
+      .toArray();
+    assert.strictEqual(result[2], 'ok 1 - this should be skipped # SKIP test name does not match pattern\n');
+    assert.strictEqual(result[5], 'ok 2 - this should be executed\n');
+  });
 });