feat: support run related tests

e2e/browser-mode/fixtures/ports.ts

@@ -29,6 +29,7 @@ export const BROWSER_PORTS = {
   'reporter-watch': 5222,
   'github-actions': 5224,
   'browser-coverage-multiproject': 5228,
+  related: 5230,
 } as const;
 
 const browserPortValues = Object.values(BROWSER_PORTS);

e2e/browser-mode/fixtures/related/rstest.config.mts

@@ -0,0 +1,13 @@
+import { defineConfig } from '@rstest/core';
+import { BROWSER_PORTS } from '../ports';
+
+export default defineConfig({
+  browser: {
+    enabled: true,
+    provider: 'playwright',
+    headless: true,
+    port: BROWSER_PORTS.related,
+  },
+  include: ['tests/**/*.test.ts'],
+  testTimeout: 30000,
+});

e2e/browser-mode/fixtures/related/tests/index.test.ts

@@ -0,0 +1,8 @@
+import { describe, expect, it } from '@rstest/core';
+import { sayHi } from './src/index';
+
+describe('browser related index', () => {
+  it('should greet index', () => {
+    expect(sayHi()).toBe('Hello, index!');
+  });
+});

e2e/browser-mode/fixtures/related/tests/other.test.ts

@@ -0,0 +1,8 @@
+import { describe, expect, it } from '@rstest/core';
+import { sayBye } from './src/other';
+
+describe('browser related other', () => {
+  it('should greet other', () => {
+    expect(sayBye()).toBe('Hello, other!');
+  });
+});

e2e/browser-mode/fixtures/related/tests/src/index.ts

@@ -0,0 +1,3 @@
+import { greet } from './shared';
+
+export const sayHi = () => greet('index');

e2e/browser-mode/fixtures/related/tests/src/other.ts

@@ -0,0 +1,3 @@
+import { greet } from './shared';
+
+export const sayBye = () => greet('other');

e2e/browser-mode/fixtures/related/tests/src/shared.ts

@@ -0,0 +1 @@
+export const greet = (name: string) => `Hello, ${name}!`;

e2e/browser-mode/related.test.ts

@@ -0,0 +1,55 @@
+import { dirname, join } from 'node:path';
+import { fileURLToPath } from 'node:url';
+import { describe, expect, it } from '@rstest/core';
+import { runRstestCli } from '../scripts';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+
+describe('browser mode - related', () => {
+  it('should filter browser tests by related source files', async () => {
+    const { cli, expectExecSuccess } = await runRstestCli({
+      command: 'rstest',
+      args: ['list', '--related', 'tests/src/index.ts', '--filesOnly'],
+      options: {
+        nodeOptions: {
+          cwd: join(__dirname, 'fixtures', 'related'),
+          env: {
+            CI: '',
+            GITHUB_ACTIONS: '',
+          },
+        },
+      },
+    });
+
+    await expectExecSuccess();
+
+    expect(
+      cli.stdout.split('\n').filter((line) => line.includes('.test.ts')),
+    ).toEqual(['tests/index.test.ts']);
+  });
+
+  it('should not run the full browser suite when related finds no tests', async () => {
+    const { cli, expectExecFailed } = await runRstestCli({
+      command: 'rstest',
+      args: ['run', '--related', 'tests/src/missing.ts'],
+      options: {
+        nodeOptions: {
+          cwd: join(__dirname, 'fixtures', 'related'),
+          env: {
+            CI: '',
+            GITHUB_ACTIONS: '',
+          },
+        },
+      },
+    });
+
+    await expectExecFailed();
+
+    expect(cli.stderr).toContain('No test files found, exiting with code 1.');
+    expect(cli.log).toContain('related:');
+    expect(cli.log).toContain('tests/src/missing.ts');
+    expect(cli.log).not.toContain('index.test.ts');
+    expect(cli.log).not.toContain('other.test.ts');
+  });
+});

e2e/filter/fixtures-related-dynamic/index.test.ts

@@ -0,0 +1,8 @@
+import { describe, expect, it } from '@rstest/core';
+
+describe('index', () => {
+  it('should transform late', async () => {
+    const { getLate } = await import('./src/late');
+    expect(getLate()).toBe('LATE');
+  });
+});

e2e/filter/fixtures-related-dynamic/other.test.ts

@@ -0,0 +1,8 @@
+import { describe, expect, it } from '@rstest/core';
+
+describe('other', () => {
+  it('should transform other', async () => {
+    const { getOther } = await import('./src/other');
+    expect(getOther()).toBe('OTHER');
+  });
+});

e2e/filter/fixtures-related-dynamic/rstest.config.mts

@@ -0,0 +1,11 @@
+import { defineConfig } from '@rstest/core';
+
+export default defineConfig({
+  tools: {
+    rspack: {
+      watchOptions: {
+        aggregateTimeout: 10,
+      },
+    },
+  },
+});

e2e/filter/fixtures-related-dynamic/src/late.ts

@@ -0,0 +1,3 @@
+import { transform } from './shared';
+
+export const getLate = () => transform('late');

e2e/filter/fixtures-related-dynamic/src/other.ts

@@ -0,0 +1,3 @@
+import { transform } from './shared';
+
+export const getOther = () => transform('other');

e2e/filter/fixtures-related-dynamic/src/shared.ts

@@ -0,0 +1 @@
+export const transform = (value: string) => value.toUpperCase();

e2e/filter/fixtures-related-mixed/browser/index.test.ts

@@ -0,0 +1,8 @@
+import { describe, expect, it } from '@rstest/core';
+import { sayHi } from './src/index';
+
+describe('browser project', () => {
+  it('should not be touched for node-only related sources', () => {
+    expect(sayHi()).toBe('Hello, browser!');
+  });
+});

e2e/filter/fixtures-related-mixed/browser/src/index.ts

@@ -0,0 +1 @@
+export const sayHi = () => 'Hello, browser!';

e2e/filter/fixtures-related-mixed/node/index.test.ts

@@ -0,0 +1,8 @@
+import { describe, expect, it } from '@rstest/core';
+import { sayHi } from './src/index';
+
+describe('node project', () => {
+  it('should run node related tests without loading browser mode', () => {
+    expect(sayHi()).toBe('Hello, node!');
+  });
+});

e2e/filter/fixtures-related-mixed/node/src/index.ts

@@ -0,0 +1 @@
+export const sayHi = () => 'Hello, node!';

e2e/filter/fixtures-related-mixed/rstest.config.mts

@@ -0,0 +1,21 @@
+import { defineConfig } from '@rstest/core';
+
+export default defineConfig({
+  projects: [
+    {
+      name: 'node-project',
+      root: 'node',
+      include: ['**/*.test.ts'],
+    },
+    {
+      name: 'browser-project',
+      root: 'browser',
+      include: ['**/*.test.ts'],
+      browser: {
+        enabled: true,
+        provider: 'invalid' as unknown as 'playwright',
+        headless: true,
+      },
+    },
+  ],
+});

e2e/filter/fixtures-related/index.test.ts

@@ -0,0 +1,8 @@
+import { describe, expect, it } from '@rstest/core';
+import { sayHi } from './src/index';
+
+describe('index', () => {
+  it('should greet index', () => {
+    expect(sayHi()).toBe('Hello, index!');
+  });
+});

e2e/filter/fixtures-related/other.test.ts

@@ -0,0 +1,8 @@
+import { describe, expect, it } from '@rstest/core';
+import { sayBye } from './src/other';
+
+describe('other', () => {
+  it('should greet other', () => {
+    expect(sayBye()).toBe('Hello, other!');
+  });
+});

e2e/filter/fixtures-related/src/fallback.ts

@@ -0,0 +1 @@
+export const fallback = () => 'fallback';

e2e/filter/fixtures-related/src/fallback.ts.test.ts

@@ -0,0 +1,6 @@
+import { expect, it } from '@rstest/core';
+import { unrelated } from './unrelated';
+
+it('should not be selected by substring-only fallback matching', () => {
+  expect(unrelated()).toBe('unrelated');
+});

e2e/filter/fixtures-related/src/index.ts

@@ -0,0 +1,3 @@
+import { greet } from './shared';
+
+export const sayHi = () => greet('index');

e2e/filter/fixtures-related/src/other.ts

@@ -0,0 +1,3 @@
+import { greet } from './shared';
+
+export const sayBye = () => greet('other');

e2e/filter/fixtures-related/src/shared.ts

@@ -0,0 +1 @@
+export const greet = (name: string) => `Hello, ${name}!`;

e2e/filter/fixtures-related/src/unrelated.ts

@@ -0,0 +1 @@
+export const unrelated = () => 'unrelated';