Nightwatch 获取 api 结果以填充变量然后运行测试使用该变量的正确方法

Question

我是节点和异步处理方式的新手。

我想使用 nightwatch.js 创建和运行一个测试套件，我已经阅读了所有文档，但我对如何做我想做的事情感到困惑（已经为此工作了 3天了）。

我是不是想错了？

module.exports = {
    before: function(browser) {
        /*
        Here I just want to make a web call to an api and get a result and then
        store that result in a variable which we will use later in test1 and other test cases
        */
        browser.globals.myVariable = resultofsomeapicalll;
        //wait here until proceeding
    },
    after: function(browser) {
        browser.end();
    },
    beforeEach: function(browser) {
    },
    afterEach: function() {
    },
    'test1': function(browser) {
        browser.url(browser.launchUrl + browser.globals.myVariable, function(result) {
            browser.waitForElementPresent('body', 1000);
            browser.expect.element("#something").to.be.present;
            browser.saveScreenshot('./screenshots/' + browser.currentTest.module + '/' + browser.currentTest.name + '.png');
        });
    },
};

Answer 1

要在 Nightwatch.JS before[Each] 或 after[Each] 挂钩中执行异步任务，您需要将回调参数传递给该函数，该函数将在作业完成后触发。

在下面的示例中，它将是一个 API 使用 Axios 库的调用；

module.exports = {
    before: function(browser, done) {
        axios.get('https://example.com/api?ID=12345')
          .then(function (response) {
            browser.globals.myVariable = response;
            done();
          })
          .catch(function (error) {
            done(error);
          });
    },
    after: function(browser) {
        browser.end();
    },
    beforeEach: function(browser) {
    },
    afterEach: function() {
    },
    'test1': function(browser) {
        console.log()
    },
};

Controlling the done invocation timeout

By default the done invocation timeout is set to 10 seconds (2 seconds for unit tests). In some cases this might not be sufficient and to avoid a timeout error, you can increase this timeout by defining an asyncHookTimeout property (in milliseconds) in your external globals file (see below for details on external globals).

http://nightwatchjs.org/guide/#asynchronous-before-each-and-after-each-

此致，

陆

Nightwatch 获取 api 结果以填充变量然后运行测试使用该变量的正确方法

Nightwatch correct way to get api result to populate variable then run tests that use that variable

javascript

asynchronous

node.js

nightwatch.js

Nightwatch 获取 api 结果以填充变量然后 运行 测试使用该变量的正确方法

Nightwatch correct way to get api result to populate variable then run tests that use that variable

javascript

asynchronous

node.js

nightwatch.js

Nightwatch 获取 api 结果以填充变量然后运行测试使用该变量的正确方法