feat(jest-core): GitHubActionsReporter goes live

CHANGELOG.md

@@ -37,7 +37,7 @@
 - `[jest-mock]` [**BREAKING**] Improve the usage of `jest.fn` generic type argument ([#12489](https://github.com/facebook/jest/pull/12489))
 - `[jest-mock]` Add support for auto-mocking async generator functions ([#11080](https://github.com/facebook/jest/pull/11080))
 - `[jest-mock]` Add `contexts` member to mock functions ([#12601](https://github.com/facebook/jest/pull/12601))
-- `[jest-reporters]` Add GitHub Actions reporter ([#11320](https://github.com/facebook/jest/pull/11320))
+- `[jest-reporters]` Add GitHub Actions reporter ([#11320](https://github.com/facebook/jest/pull/11320), [#12658](https://github.com/facebook/jest/pull/12658)
 - `[jest-resolve]` [**BREAKING**] Add support for `package.json` `exports` ([#11961](https://github.com/facebook/jest/pull/11961), [#12373](https://github.com/facebook/jest/pull/12373))
 - `[jest-resolve, jest-runtime]` Add support for `data:` URI import and mock ([#12392](https://github.com/facebook/jest/pull/12392))
 - `[jest-resolve, jest-runtime]` Add support for async resolver ([#11540](https://github.com/facebook/jest/pull/11540))

jest.config.ci.js

@@ -11,6 +11,7 @@ module.exports = {
   ...require('./jest.config'),
   coverageReporters: ['json'],
   reporters: [
+    'github-actions',
     [
       'jest-junit',
       {outputDirectory: 'reports/junit', outputName: 'js-test-results.xml'},

packages/jest-config/src/constants.ts

@@ -8,8 +8,8 @@
 import * as path from 'path';
 
 export const NODE_MODULES = `${path.sep}node_modules${path.sep}`;
+export const BUILD_IN_REPORTERS = ['default', 'github-actions'];
 export const DEFAULT_JS_PATTERN = '\\.[jt]sx?$';
-export const DEFAULT_REPORTER_LABEL = 'default';
 export const PACKAGE_JSON = 'package.json';
 export const JEST_CONFIG_BASE_NAME = 'jest.config';
 export const JEST_CONFIG_EXT_CJS = '.cjs';

packages/jest-config/src/normalize.ts

@@ -32,7 +32,7 @@ import DEPRECATED_CONFIG from './Deprecated';
 import {validateReporters} from './ReporterValidationErrors';
 import VALID_CONFIG from './ValidConfig';
 import {getDisplayNameColor} from './color';
-import {DEFAULT_JS_PATTERN, DEFAULT_REPORTER_LABEL} from './constants';
+import {BUILD_IN_REPORTERS, DEFAULT_JS_PATTERN} from './constants';
 import getMaxWorkers from './getMaxWorkers';
 import {parseShardPair} from './parseShardPair';
 import setFromArgv from './setFromArgv';
@@ -433,7 +433,7 @@ const normalizeReporters = (options: Config.InitialOptionsWithRootDir) => {
       normalizedReporterConfig[0],
     );
 
-    if (reporterPath !== DEFAULT_REPORTER_LABEL) {
+    if (!BUILD_IN_REPORTERS.includes(reporterPath)) {
       const reporter = Resolver.findNodeModule(reporterPath, {
         basedir: options.rootDir,
       });

packages/jest-core/src/TestScheduler.ts

@@ -12,6 +12,7 @@ import exit = require('exit');
 import {
   CoverageReporter,
   DefaultReporter,
+  GitHubActionsReporter,
   NotifyReporter,
   Reporter,
   SummaryReporter,
@@ -28,6 +29,7 @@ import {
 } from '@jest/test-result';
 import {createScriptTransformer} from '@jest/transform';
 import type {Config} from '@jest/types';
+import {constants} from 'jest-config';
 import {formatExecError} from 'jest-message-util';
 import type {JestTestRunner, TestRunnerContext} from 'jest-runner';
 import type {Context} from 'jest-runtime';
@@ -330,25 +332,40 @@ class TestScheduler {
     }
   }
 
-  private _shouldAddDefaultReporters(
-    reporters?: Array<string | Config.ReporterConfig>,
-  ): boolean {
-    return (
-      !reporters ||
-      !!reporters.find(
-        reporter => this._getReporterProps(reporter).path === 'default',
-      )
-    );
-  }
-
   async _setupReporters() {
     const {collectCoverage, notify, reporters} = this._globalConfig;
-    const isDefault = this._shouldAddDefaultReporters(reporters);
+
+    if (notify) {
+      this.addReporter(
+        new NotifyReporter(
+          this._globalConfig,
+          this._options.startRun,
+          this._context,
+        ),
+      );
+    }
+
+    if (!reporters) {
+      this._setupDefaultReporters(collectCoverage);
+      return;
+    }
+
+    const reporterNames = reporters.map(
+      reporter => this._getReporterProps(reporter).path,
+    );
+
+    const isDefault = reporterNames?.includes('default');
+    const isGitHubActions =
+      process.env.GITHUB_ACTIONS && reporterNames?.includes('github-actions');
 
     if (isDefault) {
       this._setupDefaultReporters(collectCoverage);
     }
 
+    if (isGitHubActions) {
+      this.addReporter(new GitHubActionsReporter());
+    }
+
     if (!isDefault && collectCoverage) {
       this.addReporter(
         new CoverageReporter(this._globalConfig, {
@@ -359,19 +376,7 @@ class TestScheduler {
       );
     }
 
-    if (notify) {
-      this.addReporter(
-        new NotifyReporter(
-          this._globalConfig,
-          this._options.startRun,
-          this._context,
-        ),
-      );
-    }
-
-    if (reporters && Array.isArray(reporters)) {
-      await this._addCustomReporters(reporters);
-    }
+    await this._addCustomReporters(reporters);
   }
 
   private _setupDefaultReporters(collectCoverage: boolean) {
@@ -400,7 +405,7 @@ class TestScheduler {
     for (const reporter of reporters) {
       const {options, path} = this._getReporterProps(reporter);
 
-      if (path === 'default') continue;
+      if (constants.BUILD_IN_REPORTERS.includes(path)) continue;
 
       try {
         const Reporter = await requireOrImportModule<any>(path, true);

packages/jest-core/src/__tests__/TestScheduler.test.js

@@ -6,12 +6,13 @@
  *
  */
 
-import {SummaryReporter} from '@jest/reporters';
+import {GitHubActionsReporter, SummaryReporter} from '@jest/reporters';
 import {makeGlobalConfig, makeProjectConfig} from '@jest/test-utils';
 import {createTestScheduler} from '../TestScheduler';
 import * as testSchedulerHelper from '../testSchedulerHelper';
 
 jest.mock('@jest/reporters');
+
 const mockSerialRunner = {
   isSerial: true,
   runTests: jest.fn(),
@@ -29,10 +30,18 @@ jest.mock('jest-runner-parallel', () => jest.fn(() => mockParallelRunner), {
 
 const spyShouldRunInBand = jest.spyOn(testSchedulerHelper, 'shouldRunInBand');
 
+const original_GITHUB_ACTIONS = process.env.GITHUB_ACTIONS;
+
 beforeEach(() => {
   mockSerialRunner.runTests.mockClear();
   mockParallelRunner.runTests.mockClear();
   spyShouldRunInBand.mockClear();
+
+  process.env.GITHUB_ACTIONS = true;
+});
+
+afterEach(() => {
+  process.env.GITHUB_ACTIONS = original_GITHUB_ACTIONS;
 });
 
 test('config for reporters supports `default`', async () => {
@@ -78,6 +87,35 @@ test('config for reporters supports `default`', async () => {
   expect(emptyReportersScheduler._dispatcher._reporters.length).toBe(0);
 });
 
+test('config for reporters supports `github-actions`', async () => {
+  await createTestScheduler(
+    makeGlobalConfig({
+      reporters: [],
+    }),
+    {},
+    {},
+  );
+  expect(GitHubActionsReporter).toHaveBeenCalledTimes(0);
+
+  await createTestScheduler(
+    makeGlobalConfig({
+      reporters: ['github-actions'],
+    }),
+    {},
+    {},
+  );
+  expect(GitHubActionsReporter).toHaveBeenCalledTimes(1);
+
+  await createTestScheduler(
+    makeGlobalConfig({
+      reporters: ['default', 'github-actions'],
+    }),
+    {},
+    {},
+  );
+  expect(GitHubActionsReporter).toHaveBeenCalledTimes(2);
+});
+
 test('.addReporter() .removeReporter()', async () => {
   const scheduler = await createTestScheduler(makeGlobalConfig(), {}, {});
   const reporter = new SummaryReporter();

packages/jest-reporters/src/GitHubActionsReporter.ts

@@ -23,6 +23,8 @@ function replaceEntities(s: string): string {
 }
 
 export default class GitHubActionsReporter extends BaseReporter {
+  static readonly filename = __filename;
+
   override onRunComplete(
     _contexts?: Set<Context>,
     aggregatedResults?: AggregatedResult,
@@ -48,7 +50,7 @@ function getMessages(results: Array<TestResult> | undefined) {
       .filter((m): m is RegExpExecArray => m !== null)
       .map(
         ([message, line, col]) =>
-          `::error file=${testFilePath},line=${line},col=${col}::${message}`,
+          `\n::error file=${testFilePath},line=${line},col=${col}::${message}`,
       ),
   );
 }

packages/jest-reporters/src/__tests__/__snapshots__/GitHubActionsReporter.test.js.snap

@@ -1,6 +1,7 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
 exports[`reporter extracts the correct filename, line, and column 1`] = `
-"::error file=/home/runner/work/jest/jest/some.test.js,line=4,col=17::%0A              Error: expect(received).toBe(expected) // Object.is equality%0A%0A              %0A%0A              Expected: "b"%0A%0A              Received: "a"%0A%0A                  at Object.<anonymous> (/home/runner/work/jest/jest/some.test.js:4:17)%0A%0A                  at Object.asyncJestTest (/home/runner/work/jest/jest/node_modules/jest-jasmine2/build/jasmineAsyncInstall.js:106:37)%0A%0A                  at /home/runner/work/jest/jest/node_modules/jest-jasmine2/build/queueRunner.js:45:12%0A%0A                  at new Promise (<anonymous>)%0A%0A                  at mapper (/home/runner/work/jest/jest/node_modules/jest-jasmine2/build/queueRunner.js:28:19)%0A%0A                  at /home/runner/work/jest/jest/node_modules/jest-jasmine2/build/queueRunner.js:75:41%0A%0A                  at processTicksAndRejections (internal/process/task_queues.js:93:5)%0A            
+"
+::error file=/home/runner/work/jest/jest/some.test.js,line=4,col=17::%0A              Error: expect(received).toBe(expected) // Object.is equality%0A%0A              %0A%0A              Expected: "b"%0A%0A              Received: "a"%0A%0A                  at Object.<anonymous> (/home/runner/work/jest/jest/some.test.js:4:17)%0A%0A                  at Object.asyncJestTest (/home/runner/work/jest/jest/node_modules/jest-jasmine2/build/jasmineAsyncInstall.js:106:37)%0A%0A                  at /home/runner/work/jest/jest/node_modules/jest-jasmine2/build/queueRunner.js:45:12%0A%0A                  at new Promise (<anonymous>)%0A%0A                  at mapper (/home/runner/work/jest/jest/node_modules/jest-jasmine2/build/queueRunner.js:28:19)%0A%0A                  at /home/runner/work/jest/jest/node_modules/jest-jasmine2/build/queueRunner.js:75:41%0A%0A                  at processTicksAndRejections (internal/process/task_queues.js:93:5)%0A            
 "
 `;