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node.js - 使用 Nightwatch.js 启动 Selenium 服务器

转载 作者:搜寻专家 更新时间:2023-10-31 22:54:29 24 4
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我正在使用 selenium-webdriver 并想试用 nightwatch.js 看看它是否更易于使用。我按照说明 here .我决定让 Nightwatch 自动为我启动 selenium 服务器,所以我根据上面提供的链接做了我认为正确的配置。我收到一个我无法弄清楚的错误,输出显示:

Starting selenium server... started - PID:  1760

[Test] Test Suite
=================

Running: demoTestGoogle

Error retrieving a new session from the selenium server
Error: connect ECONNREFUSED 127.0.0.1:8080
at Object.exports._errnoException (util.js:856:11)
at exports._exceptionWithHostPort (util.js:879:20)
at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1053:14)


Connection refused! Is selenium server started?


Process finished with exit code 1

selenium 调试日志文件是这样说的

13:43:03.394 INFO - Launching a standalone Selenium Server
13:43:03.474 INFO - Java: Oracle Corporation 25.73-b02
13:43:03.474 INFO - OS: Windows 7 6.1 amd64
13:43:03.483 INFO - v2.52.0, with Core v2.52.0. Built from revision 4c2593c
13:43:03.530 INFO - Driver class not found: com.opera.core.systems.OperaDriver
13:43:03.530 INFO - Driver provider com.opera.core.systems.OperaDriver is not registered
13:43:03.536 INFO - Driver provider org.openqa.selenium.safari.SafariDriver registration is skipped:
registration capabilities Capabilities [{browserName=safari, version=, platform=MAC}] does not match the current platform VISTA
13:43:03.665 INFO - RemoteWebDriver instances should connect to: http://127.0.0.1:4444/wd/hub
13:43:03.665 INFO - Selenium Server is up and running

这是我的 nightwatch.json 文件

{
"src_folders": [ "tests" ],
"output_folder": "reports",
"custom_commands_path": "",
"custom_assertions_path": "",
"page_objects_path": "",
"globals_path": "",
"selenium": {
"start_process": true,
"server_path": "./bin/selenium-server-standalone-jar/jar/selenium-server-standalone-2.52.0.jar",
"start_session" : true,
"log_path": "",
"host": "",
"port": 4444,
"cli_args": {
"webdriver.chrome.driver": "",
"webdriver.ie.driver": ""
}
},
"test_settings": {
"default": {
"launch_url": "http://localhost",
"selenium_port": 8080,
"selenium_host": "localhost",
"silent": true,
"screenshots": {
"enabled": false,
"path": ""
},
"desiredCapabilities": {
"browserName": "firefox",
"javascriptEnabled": true,
"acceptSslCerts": true
}
},
"chrome": {
"desiredCapabilities": {
"browserName": "chrome",
"javascriptEnabled": true,
"acceptSslCerts": true
}
}
}
}

编辑:添加了 demoTestGoogle,我有一个 nightwatch.js 文件,我在其中运行然后运行 ​​demoTestGoogle 函数。

运行 demoTestGoogle 的 nightwatch.js

require('nightwatch/bin/runner.js');

在单独的 JS 文件中演示 TestGoogle 函数

this.demoTestGoogle = function (browser) {
browser
.url('http://www.google.com')
.waitForElementVisible('body', 1000)
.setValue('input[type=text]', 'nightwatch')
.waitForElementVisible('button[name=btnG]', 1000)
.click('button[name=btnG]')
.pause(1000)
.assert.containsText('#main', 'The Night Watch')
.end();
};

最佳答案

正如 Nightwatch 的伟大指南所建议的那样,dwyl-learn-nightwatch ,您可以将 nightwatch.json 文件替换为 .js 文件,以添加变量、全局变量等功能,甚至在 Selenium 中需要,以便 Nightwatch 可以看到并运行它。

这是我从 GitHub 源代码修改的一个简单示例,用于启动 selenium 及其测试。确保在项目中安装依赖项,首先:

npm install --save-dev nightwatch chromedriver selenium-server

然后用 .js 文件替换该 JSON 文件,可能名为 nightwatch.conf.js 并注意配置文件中 selenium 键下的配置选项:

nightwatch.conf.js

const seleniumServer = require("selenium-server");
const chromedriver = require("chromedriver");
const SCREENSHOT_PATH = "./screenshots/";


module.exports = {
"src_folders": [
"tests/e2e"
],
"output_folder": "./reports",
"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": {
"screenshots": {
"enabled": true, // if you want to keep screenshots
"path": SCREENSHOT_PATH // save screenshots here
},
"globals": {
"waitForConditionTimeout": 5000 // set a (default) timeout period, maybe 5s
},
"desiredCapabilities": { // use Chrome as the default browser for tests
"browserName": "chrome"
}
},
"chrome": {
"desiredCapabilities": {
"browserName": "chrome",
"javascriptEnabled": true
}
}
}
}

function padLeft (count) { // theregister.co.uk/2016/03/23/npm_left_pad_chaos/
return count < 10 ? '0' + count : count.toString();
}

var FILECOUNT = 0; // "global" screenshot file count
/**
* The default is to save screenshots to the root of your project even though
* there is a screenshots path in the config object above! ... so we need a
* function that returns the correct path for storing our screenshots.
* While we're at it, we are adding some meta-data to the filename, specifically
* the Platform/Browser where the test was run and the test (file) name.
*/
function imgpath (browser) {
var a = browser.options.desiredCapabilities;
var meta = [a.platform];
meta.push(a.browserName ? a.browserName : 'any');
meta.push(a.version ? a.version : 'any');
meta.push(a.name); // this is the test filename so always exists.
var metadata = meta.join('~').toLowerCase().replace(/ /g, '');
return SCREENSHOT_PATH + metadata + '_' + padLeft(FILECOUNT++) + '_';
}

module.exports.imgpath = imgpath;
module.exports.SCREENSHOT_PATH = SCREENSHOT_PATH;

我用来运行它的命令是这个,使用本地安装的 nightwatch 版本:

nightwatch --config nightwatch.conf.js 

希望对您有所帮助!祝你好运,祝你测试代码顺利。

关于node.js - 使用 Nightwatch.js 启动 Selenium 服务器,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/35730910/

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