javascript-jest

Test Structure

• Name test files with .test.ts or .test.js suffix in the same folder as the file being tested
• If any fixture or related support files are required, the should be placed in a dedicated __tests__ directory
• Use descriptive test names that explain the expected behavior
• Use nested describe blocks to organize related tests
• Follow the Arrange-Act-Assert (AAA) pattern in each test

Test Structure

• Use descriptive test names that clearly explain expected behavior
• Organize tests using describe blocks for logical grouping
• Keep tests focused on a single behavior or outcome
• Use toMatchSnapshot sparingly and with meaningful names
• Include negative test cases (what should NOT happen)

Setup and Teardown