我刚刚开始学习 nightwatchjs 来测试我的 web 应用程序。我需要分别在其他所有操作之前和之后调用“设置”和“拆卸”脚本。这些脚本在数据库中创建测试运行的必要条件（创建测试许可证、用户等），然后将其删除。我的应用程序中有一个触发这些的 API 调用。
在 globals.js 中，如果我没记错的话，您可以设置应该在其他所有操作之前和之后执行的方法，以及before应该在每个测试套件之前和之后执行的和。似乎and方法接受对象和回调作为参数。然而， and方法只获得回调。afterbeforeEachafterEachbeforeEachafterEachbrowserdonebeforeafterdone
在特定的测试套件中，可以添加相同的四个方法，但在这种情况下，beforeandafter分别在所有内容之前beforeEach和afterEach之后运行，and 在套件中的每个单独测试之前和之后运行。
理想情况下，我会在全局和方法中调用我的setup和teardown脚本，但那些没有获得夜间值守（浏览器）的实例，所以我不知道该怎么做。beforeafter
beforeEach在我的全局方法中，我可以很好地触发“设置”调用。这对我来说并不理想，但它仍然可以工作，但这只是多余的（在每个测试套件之前调用它，而不是在所有东西之前调用它）。
但是，当我尝试从全局方法调用teardown脚本时遇到问题。afterEach当我运行测试时，输出在最后挂起，直到我点击CTRL+C.
这是我的 nightwatch.conf.js：
const seleniumServer = require("selenium-server");
const chromedriver = require("chromedriver");
// we use a nightwatch.conf.js file so we can include comments and helper functions
module.exports = {
"src_folders": [
"tests",
],
"page_objects_path": './pages',
"globals_path": "./globals.js",
"output_folder": "./reports", // reports (test outcome) output by nightwatch
"custom_commands_path" : "./commands",
"selenium": {
"start_process": true, // tells nightwatch to start/stop the selenium process
"server_path": seleniumServer.path,
"host": "127.0.0.1",
"port": 4444, // standard selenium port
"cli_args": {
"webdriver.chrome.driver" : chromedriver.path
}
},
"test_settings": {
"default": {
"silent": true,
"launchUrl": 'http://local.mytestwebsite.com',
"screenshots": {
"enabled": true, // if you want to keep screenshots
"path": "./screenshots/" // save screenshots here
},
"globals": {
"waitForConditionTimeout": 5000 // sometimes internet is slow so wait.
},
"desiredCapabilities": { // use Chrome as the default browser for tests
"browserName": "chrome",
"chromeOptions": {
"args": [
"window-size=1366,768",
"--incognito"
]
}
}
}
}
}
这是我的 globals.js：
var chromedriver = require('chromedriver');
module.exports = {
beforeEach: function(browser, done) {
console.log('Executing the global `beforeEach`');
browser.url('http://www.vulfpeck.com');
browser.expect.element('body').to.be.present;
browser.end();
// getting the session info
browser.status(function(result) {
console.log("Session Info: ", result.value);
done();
});
},
afterEach: function(browser, done){
console.log('Executing the global `afterEach`');
browser.url('http://www.vulfpeck.com');
browser.expect.element('body').to.be.present;
browser.end();
// getting the session info
browser.status(function(result) {
console.log("Session Info: ", result.value);
done();
});
},
before: function(done) {
console.log('Executing the global `before`');
console.log('starting the chromedriver');
chromedriver.start();
done();
},
after: function(done) {
console.log('Executing the global `after`');
console.log('stoppin the chromedriver');
chromedriver.stop();
done();
}
};
这是我的测试套件：
module.exports = {
'Test 1': function(browser){
browser.url('http://www.google.com');
browser.expect.element('body').to.be.present;
browser.end();
},
'Test 2': function(browser){
browser.url('http://www.vulfpeck.com');
browser.expect.element('body').to.be.present;
browser.end();
},
before: function(browser, done){
console.log('test before');
done();
},
beforeEach: function(browser, done){
console.log('test beforeEach');
done();
},
after: function(browser, done){
console.log('test after');
done();
},
afterEach: function(browser, done){
console.log('test afterEach');
done();
}
};
这是输出。
$ nightwatch
Executing the global `before`
starting the chromedriver
Starting selenium server... started - PID: 11772
[Login] Test Suite
======================
Executing the global `beforeEach`
√ Expected element <body> to be present - element was present in 31ms
Session Info: { ready: true,
message: 'Server is running',
build:
{ revision: '63f7b50',
time: '2018-02-07T22:42:28.403Z',
version: '3.9.1' },
os: { arch: 'amd64', name: 'Windows 10', version: '10.0' },
java: { version: '9' } }
test before
Running: Test 1
test beforeEach
√ Expected element <body> to be present - element was present in 30ms
test afterEach
OK. 1 assertions passed. (3.56s)
Running: Test 2
test beforeEach
√ Expected element <body> to be present - element was present in 20ms
test afterEach
OK. 1 assertions passed. (2.503s)
test after
Executing the global `afterEach`
Session Info: { ready: true,
message: 'Server is running',
build:
{ revision: '63f7b50',
time: '2018-02-07T22:42:28.403Z',
version: '3.9.1' },
os: { arch: 'amd64', name: 'Windows 10', version: '10.0' },
java: { version: '9' } }
× Expected element <body> to be present - element was not found - expected "present" but got: "not present"
at Object.afterEach (C:\sites\mytestwebsite.com\selenium\globals.js:29:21)
那么，我错过了什么吗？为什么我不能在全局 afterEach 方法中点击 URL 而不会挂起？（我刚刚发现，如果我browser.end();从套件中的最后一个测试中删除 ，我的全局afterEach将正常工作。为什么会这样？）。在运行所有测试之前和之后是否有其他推荐的方法来访问 URL？
谢谢！任何帮助表示赞赏！