Angular Validator

Purpose and scope: This tool validates Angular ValidatorFn implementations by executing them against a set of predefined test cases in a local environment. It is intended for developers and QA engineers who design complex validators for reactive forms. The process focuses on correctness, determinism, and repeatability, not on UI interactions.
How it works conceptually: a TypeScript snippet exporting a ValidatorFn is fed into a sandboxed evaluator. Each test case provides a value (and optional controls). The validator is invoked (sync or async), and the result is compared against the expected validity. A per-test report and an overall summary are produced to guide code refinement and regression checks.
Value propositions: reduces debugging time, supports async and cross-field validators, and yields exportable test results for CI workflows. Core features include test-case interpretation, asynchronous handling, error-key mapping, and detailed diagnostics. Ideal users are Angular developers building robust forms and teams seeking repeatable validator validation prior to deployment.