SpyNgModuleFactoryLoader

Allows to simulate the loading of ng modules in tests.

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class SpyNgModuleFactoryLoader implements NgModuleFactoryLoader {
  stubbedModules: {...}
  load(path: string): Promise<NgModuleFactory<any>>
}

Description

const loader = TestBed.inject(NgModuleFactoryLoader);

@Component({template: 'lazy-loaded'})
class LazyLoadedComponent {}
@NgModule({
  declarations: [LazyLoadedComponent],
  imports: [RouterModule.forChild([{path: 'loaded', component: LazyLoadedComponent}])]
})

class LoadedModule {}

// sets up stubbedModules
loader.stubbedModules = {lazyModule: LoadedModule};

router.resetConfig([
  {path: 'lazy', loadChildren: 'lazyModule'},
]);

router.navigateByUrl('/lazy/loaded');

Properties

Property	Description
stubbedModules: { [path: string]: any; }

Methods

load()
load(path: string): Promise<NgModuleFactory<any>> Parameters path string Returns Promise<NgModuleFactory<any>>