Configure Jest to collect coverage data from all source files, not just those with existing tests, while avoiding test failures due to coverage thresholds. Coverage enforcement should be handled by external reporting tools rather than the test runner itself. Use comprehensive `collectCoverageFrom` patterns to include all source files while excluding test files, setup files, and type definitions: ```javascript module.exports = { collectCoverage: true, collectCoverageFrom: [ "src/**/*.{ts,tsx}", "!src/**/*.{test,spec}.{ts,tsx}", "!src/**/tests/**", "!src/**/__tests__/**", "!src/setupTests.ts", "!src/vite-env.d.ts", "!src/**/*.d.ts", ], // Remove coverageThreshold to avoid test failures // Let external tools like codecov handle enforcement }; ``` This approach provides complete visibility into code coverage across the entire codebase while keeping test execution focused on correctness rather than coverage metrics.