在量角器茉莉花测试中从浏览器获取警报测试后继续循环答案

【问题标题】：Continue loop after getting alert test from browser in protractor jasmine test在量角器茉莉花测试中从浏览器获取警报测试后继续循环
【发布时间】：2018-11-19 10:58:33
【问题描述】：

我正在我的 Angular 应用程序中使用 jasmine runner 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。每个公司都有两三台机器是边吧。我实现了两个 for 循环，它们也通过公司和机器循环。现在在一个机器列表中有一个错误，因此显示来自本地主机的警报。由于这个原因，循环中断并失败。我想在那里实现一个条件，以便它可以检测到条件并从循环中继续。但我无法理解如何实现它。

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.");


    });
}

【问题讨论】：

标签： javascript angular jasmine protractor

【解决方案1】：

试试这个

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，它正在运行，如果仍然无法运行，请查找代码中的错误

【讨论】：