coverage-analysis

Configuring Jest and NYC for code coverage reporting involves adding specific snippets to your jest.config.ts file to enable automated metric collection and threshold checks.

Statement, branch, and function coverage measure different execution paths: statement coverage checks executed lines, branch coverage verifies conditional logic paths, and function coverage ensures all functions are invoked.

Identify and fix untested code paths in business logic by analyzing coverage reports to find gaps, then writing new tests targeting those specific uncovered error conditions and execution branches.

Yes, you can integrate code coverage analysis into CI/CD pipelines to automate reporting and enforce threshold checks, ensuring that critical API endpoints and authentication modules maintain sufficient test coverage.

Code coverage metrics do not guarantee bug-free code; while they highlight untested statements and branches, they cannot verify if the tests correctly assert business logic or validate complex authentication flows.