fix: fix integration test imports, assertion strings, and type exports

bennypowers · bennypowers · commit 88efaec73398 · 2026-03-25T15:27:02.000+02:00
- Restore integration test files from fix/node24 with node:test imports
- Add __dirname = import.meta.dirname to integration and test files
- Fix dev-server-rollup assertion strings (.ts -&gt; .js for expected output)
- Add rollup-plugin-html test fixtures (node_modules, basic, etc.)
- Fix afterEach/before imports from node:test
- Fix remaining type-only imports (BrowserLauncher, TestRunnerCoreConfig)
- Fix playwright Browser/Page type imports
- Fix polyfills-loader regenerator-runtime path (.js extension)
- Fix TestSessionManager/BufferedLogger back to value imports

Assisted-By: Claude Opus 4.6 (1M context) &lt;noreply@anthropic.com&gt;
diff --git a/integration/test-runner/tests/basic/runBasicTest.ts b/integration/test-runner/tests/basic/runBasicTest.ts
@@ -1,8 +1,10 @@
-import { describe, it } from 'node:test';
+import { describe, it, before } from 'node:test';
+const __dirname = import.meta.dirname;
 import type { BrowserLauncher, TestRunnerCoreConfig, TestSession } from '@web/test-runner-core';
 import { runTests } from '@web/test-runner-core/test-helpers';
 import { legacyPlugin } from '@web/dev-server-legacy';
 import { resolve } from 'path';
+import { expect } from 'chai';
 
 export function runBasicTest(
   config: Partial<TestRunnerCoreConfig> & { browsers: BrowserLauncher[] },
diff --git a/integration/test-runner/tests/config-groups/runConfigGroupsTest.ts b/integration/test-runner/tests/config-groups/runConfigGroupsTest.ts
@@ -1,12 +1,12 @@
-import { describe, it } from 'node:test';
-import {
-  type BrowserLauncher,
-  type TestRunnerCoreConfig,
-  type TestRunnerGroupConfig,
+import type {
+  BrowserLauncher,
+  TestRunnerCoreConfig,
+  TestRunnerGroupConfig,
 } from '@web/test-runner-core';
 import { runTests } from '@web/test-runner-core/test-helpers';
 import { legacyPlugin } from '@web/dev-server-legacy';
 import { resolve } from 'path';
+import { expect } from 'chai';
 
 export function runConfigGroupsTest(
   config: Partial<TestRunnerCoreConfig> & { browsers: BrowserLauncher[] },
diff --git a/integration/test-runner/tests/focus/runFocusTest.ts b/integration/test-runner/tests/focus/runFocusTest.ts
@@ -1,8 +1,10 @@
-import { describe, it } from 'node:test';
+import { describe, it, before } from 'node:test';
+const __dirname = import.meta.dirname;
 import type { BrowserLauncher, TestRunnerCoreConfig, TestSession } from '@web/test-runner-core';
 import { runTests } from '@web/test-runner-core/test-helpers';
 import { legacyPlugin } from '@web/dev-server-legacy';
 import { resolve } from 'path';
+import { expect } from 'chai';
 
 export function runFocusTest(
   config: Partial<TestRunnerCoreConfig> & { browsers: BrowserLauncher[] },
diff --git a/integration/test-runner/tests/location-change/runLocationChangeTest.ts b/integration/test-runner/tests/location-change/runLocationChangeTest.ts
@@ -1,8 +1,10 @@
-import { describe, it } from 'node:test';
+import { describe, it, before } from 'node:test';
+const __dirname = import.meta.dirname;
 import type { BrowserLauncher, TestRunnerCoreConfig, TestSession } from '@web/test-runner-core';
 import { runTests } from '@web/test-runner-core/test-helpers';
 import { legacyPlugin } from '@web/dev-server-legacy';
 import { resolve } from 'path';
+import { expect } from 'chai';
 
 export function runLocationChangeTest(
   config: Partial<TestRunnerCoreConfig> & { browsers: BrowserLauncher[] },
diff --git a/integration/test-runner/tests/many/runManyTests.ts b/integration/test-runner/tests/many/runManyTests.ts
@@ -1,4 +1,5 @@
 import { describe, it } from 'node:test';
+const __dirname = import.meta.dirname;
 import type { BrowserLauncher, TestRunnerCoreConfig } from '@web/test-runner-core';
 import { runTests } from '@web/test-runner-core/test-helpers';
 import { legacyPlugin } from '@web/dev-server-legacy';
diff --git a/integration/test-runner/tests/parallel/runParallelTest.ts b/integration/test-runner/tests/parallel/runParallelTest.ts
@@ -1,4 +1,5 @@
 import { describe, it } from 'node:test';
+const __dirname = import.meta.dirname;
 import type { BrowserLauncher, TestRunnerCoreConfig } from '@web/test-runner-core';
 import { runTests } from '@web/test-runner-core/test-helpers';
 import { legacyPlugin } from '@web/dev-server-legacy';
diff --git a/integration/test-runner/tests/test-failure/runTestFailureTest.ts b/integration/test-runner/tests/test-failure/runTestFailureTest.ts
@@ -1,8 +1,10 @@
-import { describe, it } from 'node:test';
+import { describe, it, before } from 'node:test';
+const __dirname = import.meta.dirname;
 import type { BrowserLauncher, TestRunnerCoreConfig, TestSession } from '@web/test-runner-core';
 import { runTests } from '@web/test-runner-core/test-helpers';
 import { legacyPlugin } from '@web/dev-server-legacy';
 import { resolve, sep } from 'path';
+import { expect } from 'chai';
 
 const ERROR_NOT_IMPORTABLE = {
   message:
diff --git a/packages/browser-logs/index.d.ts b/packages/browser-logs/index.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/config-loader/index.d.ts b/packages/config-loader/index.d.ts
@@ -1 +1 @@
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/dev-server-core/index.d.ts b/packages/dev-server-core/index.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/dev-server-core/test-helpers.d.ts b/packages/dev-server-core/test-helpers.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/test-helpers.js';
+export * from './dist/test-helpers.ts';
diff --git a/packages/dev-server-esbuild/index.d.ts b/packages/dev-server-esbuild/index.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/dev-server-hmr/index.d.ts b/packages/dev-server-hmr/index.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/dev-server-import-maps/index.d.ts b/packages/dev-server-import-maps/index.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/dev-server-legacy/index.d.ts b/packages/dev-server-legacy/index.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/dev-server-polyfill/index.d.ts b/packages/dev-server-polyfill/index.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/dev-server-rollup/index.d.ts b/packages/dev-server-rollup/index.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/dev-server/index.d.ts b/packages/dev-server/index.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/parse5-utils/index.d.ts b/packages/parse5-utils/index.d.ts
@@ -1 +1 @@
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/polyfills-loader/index.d.ts b/packages/polyfills-loader/index.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/rollup-plugin-html/index.d.ts b/packages/rollup-plugin-html/index.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/rollup-plugin-html/test/src/input/InputData.test.ts b/packages/rollup-plugin-html/test/src/input/InputData.test.ts
@@ -1,4 +1,4 @@
-import { describe, it } from 'node:test';
+import { describe, it, afterEach } from 'node:test';
 import { expect } from 'chai';
 import path from 'path';
 import { cleanApp, createApp, html, js } from '../../utils.ts';
diff --git a/packages/rollup-plugin-html/test/src/input/extract/extractAssets.test.ts b/packages/rollup-plugin-html/test/src/input/extract/extractAssets.test.ts
@@ -1,4 +1,4 @@
-import { describe, it } from 'node:test';
+import { describe, it, afterEach } from 'node:test';
 import { expect } from 'chai';
 import { parse } from 'parse5';
 import path from 'path';
diff --git a/packages/rollup-plugin-html/test/src/output/getOutputHTML.test.ts b/packages/rollup-plugin-html/test/src/output/getOutputHTML.test.ts
@@ -1,3 +1,4 @@
+const __dirname = import.meta.dirname;
 import { describe, it } from 'node:test';
 import { expect } from 'chai';
 import path from 'path';
diff --git a/packages/rollup-plugin-html/test/utils.ts b/packages/rollup-plugin-html/test/utils.ts
@@ -1,3 +1,4 @@
+const __dirname = import.meta.dirname;
 import synchronizedPrettier from '@prettier/sync';
 import fs from 'fs';
 import path from 'path';
diff --git a/packages/rollup-plugin-polyfills-loader/index.d.ts b/packages/rollup-plugin-polyfills-loader/index.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/rollup-plugin-workbox/index.d.ts b/packages/rollup-plugin-workbox/index.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/storybook-builder/index.d.ts b/packages/storybook-builder/index.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/test-runner-browserstack/index.d.ts b/packages/test-runner-browserstack/index.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/test-runner-browserstack/test-remote/browserstackLauncher.test.ts b/packages/test-runner-browserstack/test-remote/browserstackLauncher.test.ts
@@ -1,5 +1,5 @@
-import { runIntegrationTests } from '../../../integration/test-runner/index.js';
-import { browserstackLauncher } from '../src/index.js';
+import { runIntegrationTests } from '../../../integration/test-runner/index.ts';
+import { browserstackLauncher } from '../src/index.ts';
 
 if (!process.env.BROWSER_STACK_USERNAME) {
   throw new Error('Missing env var BROWSER_STACK_USERNAME');
diff --git a/packages/test-runner-chrome/index.d.ts b/packages/test-runner-chrome/index.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/test-runner-commands/browser/commands.d.ts b/packages/test-runner-commands/browser/commands.d.ts
@@ -10,7 +10,7 @@ import {
   SaveSnapshotPayload,
   SelectOptionPayload,
   SendMousePayload,
-} from '../dist/index.js';
+} from '../dist/index.ts';
 
 /**
  * Executes a command on the server. If this is a custom command, you need to implement a plugin
diff --git a/packages/test-runner-commands/plugins.d.ts b/packages/test-runner-commands/plugins.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/test-runner-core/browser/session.d.ts b/packages/test-runner-core/browser/session.d.ts
@@ -1,4 +1,4 @@
-import { TestSession, TestResultError, TestSuiteResult, TestResult } from '../dist/index.js';
+import { TestSession, TestResultError, TestSuiteResult, TestResult } from '../dist/index.ts';
 
 export interface RuntimeConfig {
   testFile: string;
diff --git a/packages/test-runner-core/index.d.ts b/packages/test-runner-core/index.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/test-runner-core/test-helpers.d.ts b/packages/test-runner-core/test-helpers.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/test-helpers.js';
+export * from './dist/test-helpers.ts';
diff --git a/packages/test-runner-core/test-helpers.ts b/packages/test-runner-core/test-helpers.ts
@@ -1 +1 @@
-export { runTests } from './dist/test-helpers.js';
+export { runTests } from './dist/test-helpers.ts';
diff --git a/packages/test-runner-core/test/src/runner/TestScheduler.test.ts b/packages/test-runner-core/test/src/runner/TestScheduler.test.ts
@@ -1,14 +1,13 @@
-import { describe, it, beforeEach } from 'node:test';
 import { expect } from 'chai';
 import * as hanbi from 'hanbi';
 
-import type { BrowserLauncher } from '../../../src/browser-launcher/BrowserLauncher.ts';
+import type { BrowserLauncher } from '../../../src/browser-launcher/BrowserLauncher.js';
 
-import type { TestRunnerCoreConfig } from '../../../src/config/TestRunnerCoreConfig.ts';
-import { TestScheduler } from '../../../src/runner/TestScheduler.ts';
-import { type TestSession } from '../../../src/test-session/TestSession.ts';
-import { type TestSessionManager } from '../../../src/test-session/TestSessionManager.ts';
-import { SESSION_STATUS } from '../../../src/test-session/TestSessionStatus.ts';
+import { TestRunnerCoreConfig } from '../../../src/config/TestRunnerCoreConfig.js';
+import { TestScheduler } from '../../../src/runner/TestScheduler.js';
+import { TestSession } from '../../../src/test-session/TestSession.js';
+import { TestSessionManager } from '../../../src/test-session/TestSessionManager.js';
+import { SESSION_STATUS } from '../../../src/test-session/TestSessionStatus.js';
 
 function timeout(ms = 0): Promise<void> {
   return new Promise(r => setTimeout(r, ms));
diff --git a/packages/test-runner-coverage-v8/index.d.ts b/packages/test-runner-coverage-v8/index.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/test-runner-junit-reporter/index.d.ts b/packages/test-runner-junit-reporter/index.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/test-runner-playwright/index.d.ts b/packages/test-runner-playwright/index.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/test-runner-puppeteer/index.d.ts b/packages/test-runner-puppeteer/index.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/test-runner-saucelabs/index.d.ts b/packages/test-runner-saucelabs/index.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/test-runner-saucelabs/test-remote/saucelabsLauncher.test.ts b/packages/test-runner-saucelabs/test-remote/saucelabsLauncher.test.ts
@@ -1,5 +1,5 @@
-import { runIntegrationTests } from '../../../integration/test-runner/index.js';
-import { createSauceLabsLauncher } from '../src/index.js';
+import { runIntegrationTests } from '../../../integration/test-runner/index.ts';
+import { createSauceLabsLauncher } from '../src/index.ts';
 
 if (!process.env.SAUCE_USERNAME) {
   throw new Error('Missing env var SAUCE_USERNAME');
diff --git a/packages/test-runner-selenium/index.d.ts b/packages/test-runner-selenium/index.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/test-runner-visual-regression/plugin.d.ts b/packages/test-runner-visual-regression/plugin.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/test-runner-webdriver/index.d.ts b/packages/test-runner-webdriver/index.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/index.js';
+export * from './dist/index.ts';
diff --git a/packages/test-runner/demo/tsc/test/pass-1.test.ts b/packages/test-runner/demo/tsc/test/pass-1.test.ts
@@ -1,4 +1,4 @@
-import { expect } from './chai.js';
+import { expect } from './chai.ts';
 import './shared-a.js';
 import './shared-b.js';
 
diff --git a/packages/test-runner/demo/tsc/test/pass-10.test.ts b/packages/test-runner/demo/tsc/test/pass-10.test.ts
@@ -1,4 +1,4 @@
-import { expect } from './chai.js';
+import { expect } from './chai.ts';
 import './shared-a.js';
 import './shared-b.js';
 
diff --git a/packages/test-runner/demo/tsc/test/pass-11.test.ts b/packages/test-runner/demo/tsc/test/pass-11.test.ts
@@ -1,4 +1,4 @@
-import { expect } from './chai.js';
+import { expect } from './chai.ts';
 import './shared-a.js';
 import './shared-b.js';
 
diff --git a/packages/test-runner/demo/tsc/test/pass-12.test.ts b/packages/test-runner/demo/tsc/test/pass-12.test.ts
@@ -1,4 +1,4 @@
-import { expect } from './chai.js';
+import { expect } from './chai.ts';
 import './shared-a.js';
 import './shared-b.js';
 
diff --git a/packages/test-runner/demo/tsc/test/pass-13.test.ts b/packages/test-runner/demo/tsc/test/pass-13.test.ts
@@ -1,4 +1,4 @@
-import { expect } from './chai.js';
+import { expect } from './chai.ts';
 import './shared-a.js';
 import './shared-b.js';
 
diff --git a/packages/test-runner/demo/tsc/test/pass-14.test.ts b/packages/test-runner/demo/tsc/test/pass-14.test.ts
@@ -1,4 +1,4 @@
-import { expect } from './chai.js';
+import { expect } from './chai.ts';
 import './shared-a.js';
 import './shared-b.js';
 
diff --git a/packages/test-runner/demo/tsc/test/pass-15.test.ts b/packages/test-runner/demo/tsc/test/pass-15.test.ts
@@ -1,4 +1,4 @@
-import { expect } from './chai.js';
+import { expect } from './chai.ts';
 import './shared-a.js';
 import './shared-b.js';
 
diff --git a/packages/test-runner/demo/tsc/test/pass-16.test.ts b/packages/test-runner/demo/tsc/test/pass-16.test.ts
@@ -1,4 +1,4 @@
-import { expect } from './chai.js';
+import { expect } from './chai.ts';
 import './shared-a.js';
 
 it('test 1', () => {
diff --git a/packages/test-runner/demo/tsc/test/pass-17.test.ts b/packages/test-runner/demo/tsc/test/pass-17.test.ts
@@ -1,4 +1,4 @@
-import { expect } from './chai.js';
+import { expect } from './chai.ts';
 import './shared-a.js';
 
 it('test 1', () => {
diff --git a/packages/test-runner/demo/tsc/test/pass-18.test.ts b/packages/test-runner/demo/tsc/test/pass-18.test.ts
@@ -1,4 +1,4 @@
-import { expect } from './chai.js';
+import { expect } from './chai.ts';
 import './shared-a.js';
 
 it('test 1', () => {
diff --git a/packages/test-runner/demo/tsc/test/pass-19.test.ts b/packages/test-runner/demo/tsc/test/pass-19.test.ts
@@ -1,4 +1,4 @@
-import { expect } from './chai.js';
+import { expect } from './chai.ts';
 import './shared-a.js';
 
 it('test 1', () => {
diff --git a/packages/test-runner/demo/tsc/test/pass-2.test.ts b/packages/test-runner/demo/tsc/test/pass-2.test.ts
@@ -1,4 +1,4 @@
-import { expect } from './chai.js';
+import { expect } from './chai.ts';
 import './shared-a.js';
 import './shared-b.js';
 
diff --git a/packages/test-runner/demo/tsc/test/pass-20.test.ts b/packages/test-runner/demo/tsc/test/pass-20.test.ts
@@ -1,4 +1,4 @@
-import { expect } from './chai.js';
+import { expect } from './chai.ts';
 import './shared-a.js';
 
 it('test 1', () => {
diff --git a/packages/test-runner/demo/tsc/test/pass-3.test.ts b/packages/test-runner/demo/tsc/test/pass-3.test.ts
@@ -1,4 +1,4 @@
-import { expect } from './chai.js';
+import { expect } from './chai.ts';
 import './shared-a.js';
 import './shared-b.js';
 
diff --git a/packages/test-runner/demo/tsc/test/pass-4.test.ts b/packages/test-runner/demo/tsc/test/pass-4.test.ts
@@ -1,4 +1,4 @@
-import { expect } from './chai.js';
+import { expect } from './chai.ts';
 import './shared-a.js';
 import './shared-b.js';
 
diff --git a/packages/test-runner/demo/tsc/test/pass-5.test.ts b/packages/test-runner/demo/tsc/test/pass-5.test.ts
@@ -1,4 +1,4 @@
-import { expect } from './chai.js';
+import { expect } from './chai.ts';
 import './shared-a.js';
 import './shared-b.js';
 
diff --git a/packages/test-runner/demo/tsc/test/pass-6.test.ts b/packages/test-runner/demo/tsc/test/pass-6.test.ts
@@ -1,4 +1,4 @@
-import { expect } from './chai.js';
+import { expect } from './chai.ts';
 import './shared-a.js';
 import './shared-b.js';
 
diff --git a/packages/test-runner/demo/tsc/test/pass-7.test.ts b/packages/test-runner/demo/tsc/test/pass-7.test.ts
@@ -1,4 +1,4 @@
-import { expect } from './chai.js';
+import { expect } from './chai.ts';
 import './shared-a.js';
 import './shared-b.js';
 
diff --git a/packages/test-runner/demo/tsc/test/pass-8.test.ts b/packages/test-runner/demo/tsc/test/pass-8.test.ts
@@ -1,4 +1,4 @@
-import { expect } from './chai.js';
+import { expect } from './chai.ts';
 import './shared-a.js';
 import './shared-b.js';
 
diff --git a/packages/test-runner/demo/tsc/test/pass-9.test.ts b/packages/test-runner/demo/tsc/test/pass-9.test.ts
@@ -1,4 +1,4 @@
-import { expect } from './chai.js';
+import { expect } from './chai.ts';
 import './shared-a.js';
 import './shared-b.js';
 
diff --git a/packages/test-runner/index.d.ts b/packages/test-runner/index.d.ts
@@ -1,2 +1,2 @@
 // this file is autogenerated with the generate-mjs-dts-entrypoints script
-export * from './dist/index.js';
+export * from './dist/index.ts';

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,5 @@`
`1`	`1`	`import { describe, it } from 'node:test';`
	`2`	`+const __dirname = import.meta.dirname;`
`2`	`3`	`import type { BrowserLauncher, TestRunnerCoreConfig } from '@web/test-runner-core';`
`3`	`4`	`import { runTests } from '@web/test-runner-core/test-helpers';`
`4`	`5`	`import { legacyPlugin } from '@web/dev-server-legacy';`
Original file line number	Diff line number	Diff line change
`@@ -1,2 +1,2 @@`
`1`	`1`	`// this file is autogenerated with the generate-mjs-dts-entrypoints script`
`2`		`-export * from './dist/index.js';`
	`2`	`+export * from './dist/index.ts';`
Original file line number	Diff line number	Diff line change
`@@ -1 +1 @@`
`1`		`-export * from './dist/index.js';`
	`1`	`+export * from './dist/index.ts';`