Class TestCmp

packages/core/test/acceptance/environment_injector_spec.ts:215–230

      });

      @Component({
        template: '',
        providers: [{provide: TOKEN, useValue: 'from component'}],
      })
      class TestCmp {
        envInjector = inject(EnvironmentInjector);

        tokenFromComponent = inject(TOKEN);
        tokenFromEnvContext = this.envInjector.runInContext(() => inject(TOKEN));

        // Attempt to inject ViewContainerRef within the environment injector's context. This should
        // not be available, so the result should be `null`.
        vcrFromEnvContext = this.envInjector.runInContext(() =>
          inject(ViewContainerRef, {optional: true}),
        );
      }

      const instance = TestBed.createComponent(TestCmp).componentInstance;
      expect(instance.tokenFromComponent).toEqual('from component');