Class UninitializedOutputComp

packages/core/test/linker/integration_spec.ts:345–352

    it('should display correct error message for uninitialized @Output', () => {
      @Component({
        selector: 'my-uninitialized-output',
        template: '<p>It works!</p>',
        standalone: false,
      })
      class UninitializedOutputComp {
        @Output() customEvent!: EventEmitter<any>;
      }

      const template =
        '<my-uninitialized-output (customEvent)="doNothing()"></my-uninitialized-output>';