javascript - 我是否误解了 Protractor 和 ControlFlow？

Question

在我的工作中，我们有一些测试在我同事的本地计算机上失败，但在我的或我们运行测试的代理上却失败，我们无法弄清楚原因。我的印象是，当您使用 Protractor 时，每个 Protractor 都会在控制流中排队并按顺序执行。我们在我同事的机器上看到的是，尽管之前的 promise 尚未得到解决，但随后的 promise 仍在执行。我已经删除了与工作相关的细节，希望下面的代码片段足以理解正在发生的事情。

我对 Protractor 的理解是错误的还是我同事的机器有问题？

"use strict";

describe('Test Title', function() {
    let fetchedData,
    createdData;

beforeAll(()=> globalHelper.logIn());
afterAll(()=> globalHelper.logOut());

it("Precondition: set to clean state", function () {
    environmentHelper.cleanEnvironment();
});

it("Get data from server", function () {
    fetchDataFromServer()
    .then((result) => {
        fetchedData = result;

    });//we expect execution of the test to stop until this promise is resolved and an error is thrown or the code inside the then is executed
});

it("Next Step", function () {
    //do some things
});

it("Next step", function (){
    //do more things
});

it("Navigate to page", () => {
    //navigate to page
});

it("create some data", function () {
    //create some data
});

it("another step", function () {
    //do even more things
});

it("Clean up", function() {
    environmentHelper.removeCreatedData(createdData);
  });

});

如有任何帮助，我们将不胜感激。提前致谢

Answer 1

我会在 fetchDataFromServer 上添加额外的日志记录，并且可能有一个 catch 语句，

   it("Get data from server", function () {
     fetchDataFromServer().then((result) => {
       console.log('data fetched from server complete');
       fetchedData = result;
     }).catch(err => {
       console.error('something bad happened here);
     });
     //we expect execution of the test to stop until this promise is resolved and an error is thrown or the code inside the then is executed
   });

   it("Next Step", function () {
     console.log("next step");
     //do some things
   });

Protractor 应该等待基于angular/jasminewd的it block 内的 promise 解决。对于 controlFlow，selenium-webdriver 将 Promise 排队并按顺序解析它们，因此当您发送 browser.get 或 element(by.css('')) 时.click，它们按顺序发生。