使用本地功能时找不到"newSession"

Question

我在尝试使用BrowserStack本地功能时遇到此错误：

(node:67602) UnhandledPromiseRejectionWarning: UnsupportedOperationError: newSession: Not Found
at parseHttpResponse (/Users/ardo/Documents/workspace/test-browser-stack/node_modules/selenium-webdriver/lib/http.js:578:11)
at Executor.execute (/Users/ardo/Documents/workspace/test-browser-stack/node_modules/selenium-webdriver/lib/http.js:489:26)
at process._tickCallback (internal/process/next_tick.js:68:7)
(node:67602) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:67602) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
(node:67602) UnhandledPromiseRejectionWarning: UnsupportedOperationError: newSession: Not Found
at parseHttpResponse (/Users/ardo/Documents/workspace/test-browser-stack/node_modules/selenium-webdriver/lib/http.js:578:11)
at Executor.execute (/Users/ardo/Documents/workspace/test-browser-stack/node_modules/selenium-webdriver/lib/http.js:489:26)
at process._tickCallback (internal/process/next_tick.js:68:7)
(node:67602) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 3)

我的代码非常简单：

const webdriver = require('selenium-webdriver');
const browserstack = require('browserstack-local');
const runTestSuite = () => {
const capabilities = {
browserName: 'Chrome',
browser_version: '80.0 beta',
os: 'OS X',
os_version: 'Catalina',
resolution: '1024x768',
'browserstack.user': '<user>',
'browserstack.key': '<key>',
'browserstack.local': true,
'browserstack.localIdentifier': 'ardotest',
// 'browserstack.use_w3c': true,
acceptSslCerts: true,
name: 'Bstack-[Node] Sample Test-OS X Catalina-Chrome 80',
};
// https://www.browserstack.com/question/663
const driver = new webdriver.Builder()
.usingServer('http://localhost:3000') // tried using the IP that I got from Network settings on my machine, it spat out the same error
.withCapabilities(capabilities)
.build();
console.log('quit');
driver.quit();
};
// creates an instance of Local
const bsLocal = new browserstack.Local();
// replace <browserstack-accesskey> with your key. You can also set an environment variable - "BROWSERSTACK_ACCESS_KEY".
const bsLocalArgs = { key: '<browserstack-accesskey>' };
// https://github.com/browserstack/browserstack-local-nodejs/blob/master/lib/Local.js
// starts the Local instance with the required arguments
bsLocal.start(bsLocalArgs, function(err) {
if (err) {
console.error(err);
return;
}
if (!bsLocal.isRunning()) {
return;
}
try {
runTestSuite();
} catch (e) {
console.error(e);
} finally {
// stop the Local instance
bsLocal.stop(function(err) {
if (err) {
console.error(err);
}
console.log('===== BrowserStack tunnel stopped =====');
});
}
});

版本：

"selenium-webdriver": "^4.0.0-alpha.5",
"browserstack-local": "^1.4.5",

我当地的环境：

"node": "10.16.3",
"npm": "6.8.0",
macOS 10.14.6

---

浏览代码，很明显它正在尝试点击/session网址来创建新会话或其他内容。我不确定我是否应该手动支持/session，或者我只是错过了一些非常愚蠢的东西？

Answer 1

似乎BrowserStack为测试执行提供了自己的Hub URL。您可以尝试将中心网址从 localhost：3000 更改为 BrowserStacks 中心网址。

参考此代码 -> .usingServer('http：//localhost：3000'(

本文档包含更多详细信息：https://www.browserstack.com/local-testing/automate

Answer 2

您只需要确保在capabilities和bsLocalArgs中具有相同的localIdentifier参数。

也就是说，无论是.withCapabilities(<here>)还是new browserstack.Local().start(<here>, ...)