vitest-patterns

Structure parameterized tests in Vitest by using `for...of` loops to iterate over test cases, which provides a clean and readable alternative to traditional test.each syntax for efficient test case iteration.

Handle promise rejections in Vitest assertions by using the `rejects.toSatisfy` method, which allows you to assert that an asynchronous operation rejects with a specific error condition while ensuring proper type narrowing.

Use the `// @ts-expect-error` directive in your Vitest test files to intentionally suppress TypeScript errors, ensuring that your tests correctly validate invalid type assertions without breaking the build.

The recommended pattern for mocking functions in a Vitest test suite is using `vi.fn` to create mock functions, allowing you to track calls, define return values, and verify interaction behaviors within your test fixtures.

Organize a new Vitest test suite using `describe` blocks to group related tests logically, enforcing standardized import statements and consistent test fixture definitions to ensure long-term maintainability and readability.

Yes, you can globally stub methods across multiple Vitest tests by establishing global stubbing conventions within your project, ensuring consistent mock behavior and setup throughout your entire test suite.