Jest
(Jest)
Definition
Jest (Jest) Tool
Jest is a JavaScript testing framework designed to ensure correctness of any JavaScript codebase by running tests with simplicity, fast execution, and efficient mocking capabilities.
Expertise Level
Level 1
Basic
1. Understands the purpose and basic features of Jest.
2. Can write and run simple test cases using Jest.
3. Familiar with the basic syntax of Jest test functions.
Level 2
Intermediate
1. Able to utilize Jest's mocking and spying capabilities.
2. Can structure test suites and organize tests effectively.
3. Understands asynchronous test handling and timer mocks.
Level 3
Advanced
1. Can implement advanced test setups including snapshot testing and coverage reports.
2. Integrates Jest testing seamlessly into CI/CD pipelines.
3. Able to customize Jest configuration for complex testing environments.
