test: attempt to workaround Windows snapshot E2E flakes

Author: clydin

.github/workflows/pr.yml

@@ -171,7 +171,7 @@ jobs:
           test_target_name: e2e.esbuild_node22
         env:
           E2E_SHARD_TOTAL: 1
-          TESTBRIDGE_TEST_ONLY: tests/basic/{build,rebuild}.ts
+          TESTBRIDGE_TEST_ONLY: tests/vitest/snapshot.ts
 
   e2e-package-managers:
     needs: build

packages/angular/build/src/builders/unit-test/runners/vitest/plugins.ts

@@ -118,7 +118,7 @@ export async function createVitestConfigPlugin(
           setupFiles,
           globals: true,
           // Allow Vitest to manage test isolation by its default behavior.
-          sequence: { setupFiles: 'list' },
+          // sequence: { setupFiles: 'list' },
         },
         optimizeDeps: {
           noDiscovery: true,

tests/legacy-cli/e2e/tests/vitest/snapshot.ts

@@ -1,53 +1,74 @@
-import { ng } from '../../utils/process';
-import { appendToFile, replaceInFile, readFile } from '../../utils/fs';
+import { exec, ng, noSilentNg } from '../../utils/process';
+import { appendToFile, replaceInFile, readFile, writeFile } from '../../utils/fs';
 import { applyVitestBuilder } from '../../utils/vitest';
 import assert from 'node:assert/strict';
 import { stripVTControlCharacters } from 'node:util';
+import { setTimeout } from 'node:timers/promises';
 
 export default async function () {
   // Set up the test project to use the vitest runner
   await applyVitestBuilder();
 
   // Add snapshot assertions to the test file
-  await appendToFile(
+  await replaceInFile(
     'src/app/app.spec.ts',
+    `describe('App', () => {`,
     `
-    it('should match file snapshot', () => {
-      const fixture = TestBed.createComponent(App);
-      const app = fixture.componentInstance;
-      expect((app as any).title()).toMatchSnapshot();
-    });
+describe('App', () => {
+  it('should match file snapshot', () => {
+    const fixture = TestBed.createComponent(App);
+    const app = fixture.componentInstance;
+    expect((app as any).title()).toMatchSnapshot();
+  });
 
-    it('should match inline snapshot', () => {
-      const fixture = TestBed.createComponent(App);
-      const app = fixture.componentInstance;
-      expect((app as any).title()).toMatchInlineSnapshot();
-    });
-  `,
+  it('should match inline snapshot', () => {
+    const fixture = TestBed.createComponent(App);
+    const app = fixture.componentInstance;
+    expect((app as any).title()).toMatchInlineSnapshot();
+  });
+`,
+  );
+
+  let content = await readFile('src/app/app.spec.ts');
+  content = content.replace(/\r\n/g, '\n');
+  content = content.replace(/\r/g, '\n');
+  await writeFile('src/app/app.spec.ts', content);
+
+  await replaceInFile(
+    'node_modules/@vitest/snapshot/dist/index.js',
+    'const transformed = s.toString()',
+    'console.log(file, JSON.stringify(snapshots, null, 2));\nconst transformed = s.toString()',
+  );
+
+  await replaceInFile(
+    'node_modules/@vitest/snapshot/dist/index.js',
+    'const transformed = s.toString();',
+    'const transformed = s.toString();console.log(transformed);',
   );
 
   // First run: create snapshots
-  const { stdout: firstRunStdout } = await ng('test');
+  const { stdout: firstRunStdout } = await noSilentNg('test');
   assert.match(
     stripVTControlCharacters(firstRunStdout),
     /Snapshots\s+2 written/,
     'Snapshots were not written on the first run.',
   );
 
+  const snapshotContent = await readFile('src/app/__snapshots__/app.spec.ts.snap');
+  assert.match(
+    snapshotContent,
+    /exports\[`App > should match file snapshot 1`\] = `"test-project"`;/,
+    'File snapshot was not written to disk.',
+  );
+
   const specContent = await readFile('src/app/app.spec.ts');
+  console.log(specContent);
   assert.match(
     specContent,
     /toMatchInlineSnapshot\(`"test-project"`\)/,
     'Inline snapshot was not written to the spec file.',
   );
 
-  const snapshotContent = await readFile('src/app/__snapshots__/app.spec.ts.snap');
-  assert.match(
-    snapshotContent,
-    /exports\[`should match file snapshot 1`\] = `"test-project"`;/,
-    'File snapshot was not written to disk.',
-  );
-
   // Second run: tests should pass with existing snapshots
   await ng('test');