Testing-Frameworks sind Tools, die die Struktur und Utilities zum Schreiben und Ausführen von Tests bereitstellen — Testorganisation, Assertions, Ausführung, Reporting und mehr. Jede Programmiersprache hat populäre Frameworks (Jest, JUnit, pytest, etc.). Sie machen Testing praktisch und standardisiert.
Was Testing-Frameworks bieten
✓ TEST STRUCTURE — define tests and group them (test/it, describe/suite)
✓ ASSERTIONS — check expected outcomes (expect, assert) with helpful matchers
✓ TEST RUNNER — discover, run all tests, and report pass/fail results
✓ SETUP/TEARDOWN — run code before/after tests (beforeEach, afterEach) for shared setup
✓ MOCKING — create test doubles (mocks, stubs, spies) for dependencies
✓ REPORTING — clear output, failure details, coverage integration
