Angular CLI - Code Coverage

Measure test coverage and interpret generated coverage reports.

How it works

Coverage reports summarize which code ran during tests. Inspect line, branch, and function coverage alongside meaningful assertions; a high percentage alone does not show that behavior is well tested. The report location and supported flags depend on the configured test builder.

Good practice

• Check the local Angular CLI version and run commands from the intended workspace.
• Review angular.json targets and builders before assuming optional commands are configured.
• Use the package manager and lockfile selected by the project.
• Review generated files, configuration changes, and build output before committing or deploying.

Further reading: Tutorialspoint: Angular CLI - Code Coverage · Current Angular CLI reference · Workspace configuration.

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