node.js – 使用Nightwatch.js启动Selenium Server

我正在使用SELEnium-webdriver并想尝试使用Nightwatch.js以查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,所以我做了我认为基于上面提供的链接的正确配置.我得到一个我无法弄清楚的错误,输出结果如下：

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调试日志文件说明了这一点

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: @R_489_10107@://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": "@R_489_10107@://localhost","SELEnium_port": 8080,"SELEnium_host": "localhost","silent": true,"screenshots": {
        "enabled": false,"path": ""
      },"desiredCapabilities": {
        "browserName": "firefox","javascriptEnabled": true,"acceptSslCerts": true
      }
    },"chrome": {
      "desiredCapabilities": {
        "browserName": "chrome","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');

demoTestGoogle函数在单独的JS文件中

this.demoTestGoogle = function (browser) {
    browser
        .url('@R_489_10107@://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();
};

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

const SELEniumServer = require("SELEnium-server");
const chromedriver = require("chromedriver");
const SCREENSHOT_PATH = "./screenshots/";


module.exports = {
  "src_folders": [
    "tests/e2e"
  ],"output_folder": "./reports",// tells nightwatch to start/stop the SELEnium process
    "server_path": SELEniumServer.path,"host": "127.0.0.1",// 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"
      }
    },"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;

nightwatch --config nightwatch.conf.js