Class TestCmp

packages/core/test/render3/reactivity_spec.ts:351–363

      const source = signal('');
      @Component({
        template: '{{ data }}',
      })
      class TestCmp {
        cdr = inject(ChangeDetectorRef);
        data = '';
        effectRef = effect(() => {
          if (this.data !== source()) {
            this.data = source();
            this.cdr.markForCheck();
          }
        });
      }

      const fix = TestBed.createComponent(TestCmp);
      await fix.whenStable();