單元測試，如果類的方法定義

Question

我只是想測試一下如果我的定義類的方法，例如：

export class GoalSettingsPage { 

    public goal: Goal; 

    constructor(
    ) { 
     this.goal = this.navParams.get('goal'); 
    } 

    saveForm(event) { 
     this.viewCtrl.dismiss(this.goal); 
    } 

單元測試某物像：

xit('should have methods defined',() => { 

    let g = new Goal() 
    let np = new NavParams() 
    let vc = new ViewController() 
    let e = new Events() 
    let fb = new FormBuilder() 

    let settingModal = new GoalSettingsPage(np,vc,fb,e); 

    expect (settingModal.saveForm(e).toBeDefined; 
}) 

不工作。

Answer 1

爲了測試類實例的方法的存在，它應該是

expect(settingModal.saveForm).toBeDefined() 

或者，更準確地說，

expect(settingModal.saveForm).toBe(jasmine.any(Function));