在量角器jasmine测试中从浏览器获得警报测试后继续循环

Question

我正在我的angular应用程序中用jasmine runner实现Protator框架。我点击每个元素，得到预期的结果。现在我的应用程序中有一个公司列表。每家公司都有两三台机器是侧杠。我在公司和机器中实现了两个for循环。现在，在一个机器列表中出现了一个错误，结果显示来自localhost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，这样它就可以检测到条件并从循环中继续。但我不明白，我该怎么做。

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
}

字体中的警报代码

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

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，它正在工作，如果仍然不工作，请在代码的您部分查找错误