Azure Devops Ubuntu 18.04 angular e2e测试

Question

列出了在Ubuntu 18.04 build agent上安装的最新版本的chrome here。我在撰写本文时正尝试使用81.0.4044.138。

在我的package.json中，我有以下脚本：

{
  ...
  scripts: {
    ...
    "ci-e2e": "ng e2e --protractor-config e2e/ci.protractor.conf.js --webdriver-update=false",
    "webdriver-update": "./node_modules/.bin/webdriver-manager update --versions.chrome=81.0.4044.138",
    ...
  }
  ...
}

我正在运行webdriver-update，然后在管道中运行ci-e2e：

我在Azure DevOps管道中不断收到此错误：

...
2020-05-27T18:29:30.5713000Z [18:29:30] E/launcher - session not created: This version of ChromeDriver only supports Chrome version 81
2020-05-27T18:29:30.5713844Z   (Driver info: chromedriver=81.0.4044.69 (6813546031a4bc83f717a2ef7cd4ac6ec1199132-refs/branch-heads/4044@{#776}),platform=Linux 5.3.0-1022-azure x86_64)
2020-05-27T18:29:30.5714690Z [18:29:30] E/launcher - SessionNotCreatedError: session not created: This version of ChromeDriver only supports Chrome version 81
2020-05-27T18:29:30.5715686Z   (Driver info: chromedriver=81.0.4044.69 (6813546031a4bc83f717a2ef7cd4ac6ec1199132-refs/branch-heads/4044@{#776}),platform=Linux 5.3.0-1022-azure x86_64)
2020-05-27T18:29:30.5716525Z     at Object.checkLegacyResponse (/home/vsts/work/1/s/wheres-my-order/node_modules/selenium-webdriver/lib/error.js:546:15)
2020-05-27T18:29:30.5717285Z     at parseHttpResponse (/home/vsts/work/1/s/wheres-my-order/node_modules/selenium-webdriver/lib/http.js:509:13)
2020-05-27T18:29:30.5718469Z     at /home/vsts/work/1/s/wheres-my-order/node_modules/selenium-webdriver/lib/http.js:441:30
2020-05-27T18:29:30.5718928Z     at processTicksAndRejections (internal/process/task_queues.js:97:5)
2020-05-27T18:29:30.5719422Z From: Task: WebDriver.createSession()
2020-05-27T18:29:30.5720072Z     at Function.createSession (/home/vsts/work/1/s/wheres-my-order/node_modules/selenium-webdriver/lib/webdriver.js:769:24)
2020-05-27T18:29:30.5720820Z     at Function.createSession (/home/vsts/work/1/s/wheres-my-order/node_modules/selenium-webdriver/chrome.js:761:15)
2020-05-27T18:29:30.5721779Z     at Direct.getNewDriver (/home/vsts/work/1/s/wheres-my-order/node_modules/protractor/built/driverProviders/direct.js:77:33)
2020-05-27T18:29:30.5722537Z     at Runner.createBrowser (/home/vsts/work/1/s/wheres-my-order/node_modules/protractor/built/runner.js:195:43)
2020-05-27T18:29:30.5723198Z     at /home/vsts/work/1/s/wheres-my-order/node_modules/protractor/built/runner.js:339:29
2020-05-27T18:29:30.5723892Z     at _fulfilled (/home/vsts/work/1/s/wheres-my-order/node_modules/protractor/node_modules/q/q.js:834:54)
2020-05-27T18:29:30.5724550Z     at /home/vsts/work/1/s/wheres-my-order/node_modules/protractor/node_modules/q/q.js:863:30
2020-05-27T18:29:30.5725293Z     at Promise.promise.promiseDispatch (/home/vsts/work/1/s/wheres-my-order/node_modules/protractor/node_modules/q/q.js:796:13)
2020-05-27T18:29:30.5726001Z     at /home/vsts/work/1/s/wheres-my-order/node_modules/protractor/node_modules/q/q.js:556:49
2020-05-27T18:29:30.5726677Z     at runSingle (/home/vsts/work/1/s/wheres-my-order/node_modules/protractor/node_modules/q/q.js:137:13)
...

[它一直尝试使用81.0.4044.69代替我指定的81.0.4044.138。

我什至已将其添加到我的ci.protractor.conf.js：

    ...
    chromeDriver: '../node_modules/protractor/node_modules/webdriver-manager/selenium/chromedriver_81.0.4044.138',
    ...

我真的在e2e套件中挣扎。每次发布Azure Devops代理时，我都必须指定一个神奇的版本号，它不是最新的，而是从代理的角度来看是最新的，我真的很想进行设置，这样我就不必每次我必须使用的版本更改时，请继续前进并推动代码更改。没有硬编码版本号就可以做到这一点吗？

Answer 1

根据ubuntu-18.04 release note：

ChromeDriver 81.0.4044.138（8c6c7ba89cc9453625af54f11fd83179e23450fa-refs / branch-heads / 4044 @ {＃999}）;可通过CHROMEWEBDRIVER环境变量获得Chrome驱动程序]

[ChromeDriver 81.0.4044.138已安装在路径$（CHROMEWEBDRIVER）中。

注意：$（CHROMEWEBDRIVER）等于

/usr/local/share/chrome_driver

根据我的测试，我使用“ PowerShell脚本”任务来输出ChromeDriver和Chrome版本。

google-chrome --version

cd $(CHROMEWEBDRIVER)
chromedriver --version

结果：

您可以运行这些脚本来检查chrome和chromedriver的版本。

然后您可以尝试直接使用Ubuntu 18.04代理中chromedriver的路径。

我指的是this tiket上的@amirated建议。

希望这会有所帮助。