TestBed
TestBed is Angular’s testing utility for configuring an isolated application environment and creating or interacting with Angular artifacts.
Pro Angular 16
TestBed is an Angular testing utility that configures a simulated application environment and creates objects for component tests.
- How it is used
- Configures simulated Angular environments for isolated component and directive unit tests.
- How deep it goes
- Explains module setup, component instantiation, fixtures, dependencies, and external-template compilation without covering broader testing internals.
- Examples
- Uses SimpleComponent tests, a mock repository, ComponentFixture inspection, and an external HTML template.
- What you can do after
- Build component tests from scratch with TestBed, fixtures, providers, and asynchronous template compilation.
Modern Angular
TestBed is Angular's testing utility for configuring an isolated testing environment and creating or interacting with Angular artifacts.
- How it is used
- Supports isolated Angular service tests when signal updates depend on manually triggered change detection.
- How deep it goes
- Explains configuration, injection, component creation, and change detection, while stopping short of deeper TestBed internals.
- Examples
- Uses a standalone stub component, mocked services, injected services, fixtures, and request-status signal assertions.
- What you can do after
- Diagnose signal-driven service behavior by configuring TestBed, injecting dependencies, triggering change detection, and checking results.
Related concepts
- testuses · A test is a procedure or check that evaluates behavior using specified inputs or evidence against expected results or criteria.
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