4

我有 myComponent 其中包含method1,method2ngOnInit.

export class myComponent  {

//input and output declaration

public myVar;
constructor( @Inject(ElementRef) private elementRef: ElementRef) {

}
public method1() { return this.myVar.val().toUpperCase(); }
public method2() { return this.myVar .val(""); }
public ngOnInit() {

this.myVar = //calling jQuery autocomplete method which in turns calls $.JSON () to get data .
//
}

这是该组件的 html 模板:

<input type="text" value="{{symbol}}" size="{{size}}" maxlength="94"><span></span>

这是我的规格文件。我需要确保插入的任何值都转换为大写。

describe('myComponent Component', () => {
    beforeEachProviders(() => [myComponent, provide(ElementRef, { useValue: new MockElementRef() })]);
    class MockElementRef implements ElementRef {
        nativeElement = {};
    }

    it('should check uppercase conversion',inject([TestComponentBuilder, myComponent , ElementRef], (tcb:TestComponentBuilder) => {
            tcb.createAsync(myComponent)
                .then((fixture) => {
                    const element = fixture.nativeElement.firstChild;
                    element.setAttribute("value", "g");
                    element.setAttribute("size", 12); //setting size and value for input element
                    var getMyElem= $(element);

                    let ac= new myComponent(fixture.nativeElement); 

                    ac.ngOnInit(); //undefined
  //ac.method1(); unable to call
                    console.log(myComponent.prototype.method1()); //it calls value method but outputs cannot read val of undefined                     
                    expect(element.getAttribute("value")).toBe("G");

                });
        }));
});

我希望将值“g”设置为等于“g”,并检查调用后是否返回“G” method1()

问题 :

1.在创建myComponent实例时传递fixture.nativeElement作为参数对吗?
2. 另外,如果您可以帮助我测试组件内部调用的 $.JSON 方法。如何模拟 JSON 请求?

4

1 回答 1

2

您不会通过new SomeComponent(). 组件需要由 Angular 创建,例如tcb.createAsync(SomeComponent). 如果myComponent在模板中AutocompleteComponent,则从fixture.

于 2016-06-01T08:20:28.197 回答