test(@angular/build): add E2E test for Vitest snapshot functionality #31124
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This commit introduces a new E2E test to validate snapshot testing with the Vitest runner. The test covers both file-based and inline snapshots. The test follows this sequence: 1. Runs `ng test` to generate initial snapshots. 2. Runs `ng test` again to ensure tests pass against the existing snapshots. 3. Modifies the component to cause a mismatch. 4. Runs `ng test` a final time and asserts that the command fails with a snapshot error. To support the new snapshot matchers (`toMatchSnapshot`, `toMatchInlineSnapshot`) in the test environment, the `vitest/globals` types are now added to the `tsconfig.spec.json` by the `applyVitestBuilder` helper.
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This commit introduces a new E2E test to validate snapshot testing with the Vitest runner. The test covers both file-based and inline snapshots.
The test follows this sequence:
ng testto generate initial snapshots.ng testagain to ensure tests pass against the existing snapshots.ng testa final time and asserts that the command fails with a snapshot error.To support the new snapshot matchers (
toMatchSnapshot,toMatchInlineSnapshot) in the test environment, thevitest/globalstypes are now added to thetsconfig.spec.jsonby theapplyVitestBuilderhelper.Closes #30439