ng-test: add page (#21037)

pages/common/ng-test.md

@@ -0,0 +1,33 @@
+# ng test
+
+> Run unit tests in a project.
+> Note: Some commands might require additional packages such as Vitest.
+> More information: <https://angular.dev/cli/test>.
+
+- Run unit tests:
+
+`ng {{[t|test]}}`
+
+- Run unit tests using a specific configuration:
+
+`ng {{[t|test]}} {{[-c|--configuration]}} {{development|production|...}}`
+
+- Specify the browsers to use for test execution:
+
+`ng {{[t|test]}} --browsers {{firefox|webkit|chromium}}`
+
+- Enable code coverage:
+
+`ng {{[t|test]}} --coverage`
+
+- Generate a coverage report in a specific format:
+
+`ng {{[t|test]}} --coverage --coverage-reporters {{cobertura|html|json|...}}`
+
+- Enable debug mode for tests:
+
+`ng {{[t|test]}} --debug`
+
+- List all discovered test files without building or running tests:
+
+`ng {{[t|test]}} --list-tests`