Demonstrating the "grep" and "invertGrep" test filtering options of Angular CLI's Protractor builder.

Playful Programming

Angular CLI 9.1 introduced support for --grep and --invert-grep parameters in the Protractor builder, allowing developers to filter end-to-end tests by matching test descriptions using regular expressions. The --grep option matches against full concatenated test descriptions from describe and it blocks, while --invert-grep inverts the filter to exclude matching tests. This enables running targeted subsets of a large e2e test suite without executing all tests.

Filtering Protractor end-to-end tests with Angular CLI