在量角器茉莉花测试中从浏览器获得警报测试后继续循环

Question

我在我的角度应用程序中用茉莉花赛跑者实现Protrator框架。 我单击具有预期结果的每个元素。 现在，我的应用程序中有一个公司列表。 每个公司有两三台机器是侧杆。 我实现了两个for循环，它们也通过公司和机器循环。 现在，在一台计算机列表中有一个错误，结果显示了来自本地主机的警报。 因此，循环中断并失败。 我想在那里实现一个条件，以便它可以检测到该条件并从循环继续。 但是我不知道如何实现它。

我的测试代码

    for (let company = 0; company < await companyOption.count(); company++) {
                await companyOption.get(company);

                for (let machine = 0; machine < await machineList.count(); machine++) {
                        await click.onto(machineList.get(machine));

                  if (window.alert()) {
                   //here i want to implement if browser.switchto.alert() is appear then test should be continue to next loop
                        } else {
                            await expect(machineList.get(machine).isSelected());

                   }

             .................... other code
      }

打字稿中的警报代码

    ngOnInit() {

    this.route.paramMap.switchMap((params: ParamMap, index) => this.machineService.load(parseInt(params.get("machineId")))).subscribe(machine => {
        this.machine = machine;
        if (this.machine.type === null)
            window.alert("No machine type assigned for " + this.machine.name + "\nAssign a type to view the details.");


    });
}

Answer 1

尝试这个

for (let company = 0; company < await companyOption.count(); company++) {

    await companyOption.get(company);

    for (let machine = 0; machine < await machineList.count(); machine++) {

        await click.onto(machineList.get(machine));
        // solution! //
        let errorMessage; // define a variable, which is currently undefined

        try {
            // try run this code, if alert is not present it'll throw an error
            // if alert is present it skips is
            await browser.switchTo().alert().accept(); 
        } catch (e) {
            // if there was no alert and an error was thrown than assign error to variable
            // if there was alert this block will be skipped and errorMessage will stay undefined
            errorMessage = e.message;
        }

        // this block will be executed if alert was present!
        // otherwise do nothing
        if (errorMessage !== undefined) {
           // ... your code here ...
        }
        // end of solution //
}

我检查了我的代码，它仍然有效，如果仍然不起作用，请在代码的一部分中查找错误