问题描述
过去 10 年我一直从事产品开发和测试工作，几年前我接管了我们公司对我们的一种产品进行硒测试的研发工作。我正在更新我们的 C# 测试框架，该框架跨一系列浏览器测试我们产品的网络服务器功能。 PM 最近添加的浏览器之一是 Opera。目前，我们在我们的框架中使用以下版本控制：
Selenium WebDriver：V3.141.0.0 Selenium WebDriver.Support：V3.141.0.0 Operadriver_win64：V2.42 Opera 浏览器：58.0.3135.127
PM 指定我们必须确保我们为客户支持 Opera 58.x，因为这将在我们的下一个产品版本中记录给客户，因此很遗憾，我不得不针对此特定版本进行测试。
我在网上做了一些关于自动化 Opera 的广泛阅读。我从 GitHub 确定我需要为我的特定 58.x 版本的 Opera 安装operachromiumdriver v2.42。
I was a bit confused by this error because I can clearly see Opera started. So,I got looking at the logging for operadriver.exe:
Starting OperaDriver 2.42.3135 (O58) on port 37604
Only local connections are allowed.
[1612215723.848][INFO]: [0d995150afccdcc03195334ce4f36367] COMMAND InitSession {
"capabilities": {
"firstMatch": [ {
"acceptInsecureCerts": true,"browserName": "opera"
} ]
},"desiredCapabilities": {
"acceptInsecureCerts": true,"browserName": "opera","operaOptions": {
"args": [ "--user-data-dir=C:\\Users\\System Test\\AppData\\Local\\Google\\Chrome\\Opera\\BlankUserData","--disable-extensions","--remote-debugging-port=37604" ],"binary": "C:\\Users\\System Test\\AppData\\Local\\Programs\\Opera\\58.0.3135.127\\opera.exe"
}
}
}
[1612215723.850][INFO]: Populating Preferences file: {
"alternate_error_pages": {
"enabled": false
},"autofill": {
"enabled": false
},"browser": {
"check_default_browser": false
},"distribution": {
"import_bookmarks": false,"import_history": false,"import_search_engine": false,"make_chrome_default_for_user": false,"skip_first_run_ui": true
},"dns_prefetching": {
"enabled": false
},"profile": {
"content_settings": {
"pattern_pairs": {
"https://*,*": {
"media-stream": {
"audio": "Default","video": "Default"
}
}
}
},"default_content_setting_values": {
"geolocation": 1
},"default_content_settings": {
"geolocation": 1,"mouselock": 1,"notifications": 1,"popups": 1,"ppapi-broker": 1
},"password_manager_enabled": false
},"safebrowsing": {
"enabled": false
},"search": {
"suggest_enabled": false
},"translate": {
"enabled": false
}
}
[1612215723.854][INFO]: Populating Local State file: {
"ab_testing": {
"uid": "MjRlNmUzZmEtNDJmNS00YTI3LWI4YTQtMTk1MTY2YmEwMTU3"
},"background_mode": {
"enabled": false
},"browserjs": {
"version": "1540378800"
},"component_updater": {
"widevine": {
"up_to_date": false
}
},"hardware_acceleration_mode_prevIoUs": true,"location": {
"country": "us","country_from_server": "unkNown"
},"partner_content": {
"version": {
"default": 61
}
},"password_manager": {
"os_password_blank": false,"os_password_last_changed": "13255103709737702"
},"shutdown": {
"num_processes": 2,"num_processes_slow": 1,"performed": true,"type": 2
},"ssl": {
"rev_checking": {
"enabled": false
}
},"startup_metric": {
"last_startup_timestamp": "13256688446647647","last_startup_version": "71.0.3578.98","same_version_startup_count": 19
},"subresource_filter": {
"ruleset_version": {
"checksum": 1918231743,"content": "9.18.0","format": 23
}
},"update": {
"last_verify_time": "13256674004800030"
},"updateclientdata": {
"apps": {
"aemomkdncapdnfajjbbcbdebjljbpmpj": {
"cohort": "","cohortname": "","dlrc": 5145,"pf": "cc1d9041-3721-4533-b352-426560ac1a21"
},"gcmjkmgdlgnkkcocmoeiminaijmmjnii": {
"cohort": "1:bm1:xa9@0.01","cohortname": "M54ToM99","pf": "6fd7e0e8-4cbf-4fa5-9f1e-8f3d1990b5b7"
},"hfnkpimlhhgieaddgfemjhofmfblmnib": {
"cohort": "1:jcl:","cohortname": "Auto","pf": "e3b2fb1e-0ebb-45a6-a5e9-6a77ef613f0e"
},"oimompecagnajdejgnnjijobebaeigek": {
"cohort": "","pf": "2b5860db-7759-4ddf-b9ad-3ecceb3ec7c8"
}
}
}
}
[1612215723.864][INFO]: Launching Opera: "C:\Users\System Test\AppData\Local\Programs\Opera\58.0.3135.127\opera.exe" --disable-background-networking --disable-client-side-phishing-detection --disable-default-apps --disable-extensions --disable-extensions-except="C:\Users\SYstem~1\AppData\Local\Temp\scoped_dir912_5937\internal" --disable-hang-monitor --disable-popup-blocking --disable-presto-profile-migration --disable-prompt-on-repost --disable-sync --disable-update --disable-usage-statistics-question --disable-web-resources --enable-automation --enable-logging --force-fieldtrials=SiteIsolationExtensions/Control --ignore-certificate-errors --log-level=0 --metrics-recording-only --no-default-browser-check --no-first-run --password-store=basic --ran-launcher --remote-debugging-port=37604 --test-type=webdriver --use-mock-keychain --user-data-dir="C:\Users\System Test\AppData\Local\Google\Chrome\Opera\BlankUserData"
[1612215723.870][DEBUG]: DevTools HTTP Request: http://localhost:37604/json/version
[1612215723.874][DEBUG]: DevTools HTTP Request Failed
[1612215723.953][DEBUG]: DevTools HTTP Request: http://localhost:37604/json/version
[1612215723.954][DEBUG]: DevTools HTTP Request Failed
[1612215724.014][DEBUG]: DevTools HTTP Request: http://localhost:37604/json/version
[1612215724.016][DEBUG]: DevTools HTTP Request Failed
[1612215724.076][DEBUG]: DevTools HTTP Request: http://localhost:37604/json/version
[1612215724.079][DEBUG]: DevTools HTTP Request Failed
[1612215724.140][DEBUG]: DevTools HTTP Request: http://localhost:37604/json/version
[1612215724.141][DEBUG]: DevTools HTTP Request Failed
[1612215724.217][DEBUG]: DevTools HTTP Request: http://localhost:37604/json/version
[1612215724.220][DEBUG]: DevTools HTTP Request Failed
[1612215724.283][DEBUG]: DevTools HTTP Request: http://localhost:37604/json/version
[1612215724.285][DEBUG]: DevTools HTTP Request Failed
[1612215724.360][DEBUG]: DevTools HTTP Request: http://localhost:37604/json/version
[1612215724.364][DEBUG]: DevTools HTTP Request Failed
[1612215724.425][DEBUG]: DevTools HTTP Request: http://localhost:37604/json/version
[1612215724.448][DEBUG]: DevTools HTTP Request Failed
[1612215724.518][DEBUG]: DevTools HTTP Request: http://localhost:37604/json/version
[1612215724.854][DEBUG]: DevTools HTTP Request Failed
[1612215724.946][INFO]: [0d995150afccdcc03195334ce4f36367] RESPONSE InitSession ERROR unkNown error: Opera Failed to start: crashed
(Opera not reachable)
(The process started from chrome location C:\Users\System Test\AppData\Local\Programs\Opera\58.0.3135.127\opera.exe is no longer running,so OperaDriver is assuming that Opera has crashed.)
[1612215724.983][DEBUG]: Log type 'driver' lost 0 entries on destruction
[1612215724.997][DEBUG]: Log type 'browser' lost 0 entries on destruction
当我使用 nunit 作为管理员运行上面的代码时，会依次发生以下 3 件事：
- Operadriver.exe 控制台窗口启动
- OperaSoftware.OperaWebbrowser.1610649940 控制台窗口启动
- Opera.exe 实例启动
此时，nunit 提示本次测试出现如下错误： SystemTest_S7_1200.Communications._45WebServer._456_WebServer_Opera._45001_BasicFunctionality： 设置：OpenQA.Selenium.WebDriverException：未知错误：Opera 无法启动：崩溃 （Opera 无法访问） （从 chrome 位置 C:\Users\System Test\AppData\Local\Programs\Opera\58.0.3135.127\opera.exe 开始的进程不再运行，因此 OperaDriver 假设 Opera 已崩溃。） （驱动程序信息：OperaDriver=2.42.3135 (O58)，平台=Windows NT 10.0.17763 x86_64）
[8116:8468:0201/164204.426:ERROR:tcp_socket_win.cc(355)] bind() returned an error: Only one usage of each socket address (protocol/network address/port) is normally permitted. (0x2740)
[8116:8468:0201/164204.442:ERROR:tcp_socket_win.cc(355)] bind() returned an error: Only one usage of each socket address (protocol/network address/port) is normally permitted. (0x2740)
[8116:8468:0201/164204.473:ERROR:devtools_http_handler.cc(295)] Cannot start http server for devtools.
[8116:3184:0201/164205.297:ERROR:gpu_process_transport_factory.cc(967)] Lost UI shared context.
在 OperaSoftware.OperaWebbrowser 控制台中，记录了以下内容：
<head>
</head>
<body>
<table border='2' cellpadding='20' align='center'>
<tbody>
<tr>
<td class="switch">1</td>
<td class="switch">2</td>
<td class="switch">3</td>
</tr>
</tbody>
</table>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js">
</script>
<script type="text/javascript">
$('\.switch').click(function() {
$(this).toggleClass('highlight');
$(this).click(function() {
$(this).toggleClass('highlight2');
})
$(this).click(function() {
$(this).toggleClass('switch');
})
})
</script>
<style>
.highlight {
background-color: #ffff00;
}
.highlight2 {
background-color: red;
}
</style>
</body>
我知道我真的很接近让它工作......我认为这里的障碍是 DevTools HTTP 请求在多次尝试时失败，最终导致 InitSession 失败，因为它无法到达/附加到歌剧。
我的问题……我在这里遗漏了什么？对于我们测试的其他浏览器，如 Chrome、IE11、FF 等，启动 webdriver 并附加到浏览器实例一点也不难。恐怕我错过的任何东西都是显而易见的，而我只是没有看到。当然，根据我在网上的研究，在使用 Opera 进行测试时，我没有看到任何明确和明确的内容。被绑定到特定版本使这个问题更像是一个障碍。非常感谢任何输入。
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