DevToolsActivePort file not exist The process started from chrome is no longer running-蒲公英云

DevToolsActivePort file not exist The process started from chrome is no longer running

使用Go进行自动化测试

在Linux上Go使用ChromeDriver进行Webdriver发生一个错误。

panic: unknown error: unknown error: Chrome failed to start: exited abnormally.
  (unknown error: DevToolsActivePort file doesn't exist)
  (The process started from chrome location /usr/bin/google-chrome is no longer running, so ChromeDriver is assuming that Chrome has crashed.)

解决方案：(添加粉红字体参数[作用：解决非root无法调用chome问题])

chromeCaps := chrome.Capabilities{
// Prefs: imgCaps,
Path: “”,
Args: []string{
// “–headless”,
“–start-maximized”,
“–window-size=1200x600”,
"--no-sandbox",
“–user-agent=Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36”,
“–disable-gpu”,
“–disable-impl-side-painting”,
“–disable-gpu-sandbox”,
“–disable-accelerated-2d-canvas”,
“–disable-accelerated-jpeg-decoding”,
“–test-type=ui”,
},
}

环境： centos7 go.1.14.4
使用到的工具下载链接：

wget http://npm.taobao.org/mirrors/chromedriver/83.0.4103.14/chromedriver\_linux64.zip
chrome浏览器安装自行百度

完整代码(模拟用户登录百度搜索点击)

package main
import (
    "fmt"
    "time"
    "github.com/tebeka/selenium"
    "github.com/tebeka/selenium/chrome"
)
const (
    //设置常量 分别设置chromedriver.exe的地址和本地调用端口
    seleniumPath = `/root/chromedriver`
    port         = 9515
)
func main() { 
    chromeCaps := chrome.Capabilities{ 
        // Prefs: imgCaps,
        Path: "",
        Args: []string{ 
            // "--headless", //不开启浏览器
            "--start-maximized",
            "--window-size=1200x600",
            "--no-sandbox", //非root可运行
            "--user-agent=Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36",
            "--disable-gpu",
            "--disable-impl-side-painting",
            "--disable-gpu-sandbox",
            "--disable-accelerated-2d-canvas",
            "--disable-accelerated-jpeg-decoding",
            "--test-type=ui",
        },
    }
    //1.开启selenium服务
    //设置selium服务的选项,设置为空。根据需要设置。
    ops := []selenium.ServiceOption{ }
    service, err := selenium.NewChromeDriverService(seleniumPath, port, ops...)
    if err != nil { 
        fmt.Printf("Error starting the ChromeDriver server: %v", err)
    }
    //延迟关闭服务
    defer service.Stop()
    //2.调用浏览器
    //设置浏览器兼容性，我们设置浏览器名称为chrome
    caps := selenium.Capabilities{ 
        "browserName": "chrome",
    }
    caps.AddChrome(chromeCaps)
    //调用浏览器urlPrefix: 测试参考：DefaultURLPrefix = "http://127.0.0.1:4444/wd/hub"
    wd, err := selenium.NewRemote(caps, "http://127.0.0.1:9515/wd/hub")
    if err != nil { 
        panic(err)
    }
    //延迟退出chrome
    defer wd.Quit()
    //3.对页面元素进行操作
    //获取百度页面
    if err := wd.Get("https://www.baidu.com/"); err != nil { 
        panic(err)
    }
    //找到百度输入框id
    we, err := wd.FindElement(selenium.ByID, "kw")
    if err != nil { 
        panic(err)
    }
    //向输入框发送“”
    err = we.SendKeys("天下第一")
    if err != nil { 
        panic(err)
    }
    //找到百度提交按钮id
    we, err = wd.FindElement(selenium.ByID, "su")
    if err != nil { 
        panic(err)
    }
    //点击提交
    err = we.Click()
    if err != nil { 
        panic(err)
    }
    //睡眠20秒后退出
    time.Sleep(20 * time.Second)
}