fix(@angular/build): update vitest to 4.0.6 and remove coverage workaround

Upgrades Vitest and @vitest/coverage-v8 dependencies to version 4.0.6.

This update allows for the removal of a temporary workaround that augmented `BaseCoverageProvider.prototype.isIncluded` in `executor.ts`. The issue with direct filesystem checks in Vitest's coverage provider has been resolved in version 4.0.6, simplifying the code and relying on the official library's implementation.

(cherry picked from commit 9af4f76)

Author: clydin

modules/testing/builder/package.json

@@ -4,9 +4,9 @@
     "@angular-devkit/architect": "workspace:*",
     "@angular/ssr": "workspace:*",
     "@angular-devkit/build-angular": "workspace:*",
-    "@vitest/coverage-v8": "4.0.0",
+    "@vitest/coverage-v8": "4.0.6",
     "jsdom": "27.0.1",
     "rxjs": "7.8.2",
-    "vitest": "4.0.0"
+    "vitest": "4.0.6"
   }
 }

packages/angular/build/package.json

@@ -56,7 +56,7 @@
     "ng-packagr": "21.0.0-rc.0",
     "postcss": "8.5.6",
     "rxjs": "7.8.2",
-    "vitest": "4.0.0"
+    "vitest": "4.0.6"
   },
   "peerDependencies": {
     "@angular/core": "0.0.0-ANGULAR-FW-PEER-DEP",
@@ -74,7 +74,7 @@
     "tailwindcss": "^2.0.0 || ^3.0.0 || ^4.0.0",
     "tslib": "^2.3.0",
     "typescript": ">=5.9 <6.0",
-    "vitest": "^4.0.0"
+    "vitest": "^4.0.6"
   },
   "peerDependenciesMeta": {
     "@angular/core": {

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

@@ -143,9 +143,7 @@ export class VitestExecutor implements TestExecutor {
     } = this.options;
 
     let vitestNodeModule;
-    let vitestCoverageModule;
     try {
-      vitestCoverageModule = await import('vitest/coverage');
       vitestNodeModule = await import('vitest/node');
     } catch (error: unknown) {
       assertIsError(error);
@@ -158,21 +156,6 @@ export class VitestExecutor implements TestExecutor {
     }
     const { startVitest } = vitestNodeModule;
 
-    // Augment BaseCoverageProvider to include logic to support the built virtual files.
-    // Temporary workaround to avoid the direct filesystem checks in the base provider that
-    // were introduced in v4. Also ensures that all built virtual files are available.
-    const builtVirtualFiles = this.buildResultFiles;
-    vitestCoverageModule.BaseCoverageProvider.prototype.isIncluded = function (filename) {
-      const relativeFilename = path.relative(workspaceRoot, filename);
-      if (!this.options.include || builtVirtualFiles.has(relativeFilename)) {
-        return !isMatch(relativeFilename, this.options.exclude);
-      } else {
-        return isMatch(relativeFilename, this.options.include, {
-          ignore: this.options.exclude,
-        });
-      }
-    };
-
     // Setup vitest browser options if configured
     const browserOptions = await setupBrowserConfiguration(
       browsers,

pnpm-lock.yaml

@@ -3,7 +3,7 @@ import { updateJsonFile } from './project';
 
 /** Updates the `test` builder in the current workspace to use Vitest. */
 export async function applyVitestBuilder(): Promise<void> {
-  await silentNpm('install', 'vitest@4.0.0', 'jsdom@27.0.0', '--save-dev');
+  await silentNpm('install', 'vitest@4.0.6', 'jsdom@27.0.0', '--save-dev');
 
   await updateJsonFile('angular.json', (json) => {
     const projects = Object.values(json['projects']);