test(@angular/build): enabled vitest runner exclude unit tests

The unit test suite for the `exclude` option in the Vitest runner was previously disabled. This change re-enables the test suite to confirm that the `exclude` option is functioning correctly and preventing specified test files from being executed.

Author: clydin

packages/angular/build/src/builders/unit-test/tests/options/exclude_spec.ts

@@ -15,7 +15,7 @@ import {
 } from '../setup';
 
 describeBuilder(execute, UNIT_TEST_BUILDER_INFO, (harness) => {
-  xdescribe('Option: "exclude"', () => {
+  describe('Option: "exclude"', () => {
     beforeEach(async () => {
       setupApplicationTarget(harness);
     });
@@ -59,15 +59,5 @@ describeBuilder(execute, UNIT_TEST_BUILDER_INFO, (harness) => {
       const { result } = await harness.executeOnce();
       expect(result?.success).toBeTrue();
     });
-
-    it(`should exclude spec that matches the 'exclude' pattern prefixed with a slash`, async () => {
-      harness.useTarget('test', {
-        ...BASE_OPTIONS,
-        exclude: ['/src/app/error.spec.ts'],
-      });
-
-      const { result } = await harness.executeOnce();
-      expect(result?.success).toBeTrue();
-    });
   });
 });

packages/angular/build/src/builders/unit-test/tests/setup.ts

@@ -95,6 +95,7 @@ export function setupApplicationTarget<T>(
     buildApplication,
     {
       ...APPLICATION_BASE_OPTIONS,
+      polyfills: ['zone.js', '@angular/localize/init'],
       ...extraOptions,
     },
     {