WebDriverError:通过Selenium和Jasmine使用ChromeDriver Chrome时，不会出现此类会话错误 [英] WebDriverError: no such session error using ChromeDriver Chrome through Selenium and Jasmine

问题描述

我正在尝试对我的网页进行自动测试，并且我将茉莉花与硒一起使用.

I'm trying to make an automated test for my webpage and I'm using Jasmine in tandem with selenium.

在chrome上进行测试(使用chromedriver)时，我意外地收到以下错误.它经常发生，以至于当我运行测试套件时，它几乎无法完成.

When testing on chrome (using chromedriver) I get, unpredictably, the error below. It happens frequently enough that when I run a test suite it hardly ever finishes.

我已经找到了此错误的证据，但找不到可靠的答案: https://bugs.chromium.org/p/chromedriver/issues/detail?id=732 (已授权用于铬，而我使用的是铬)

Ive found evidence of this bug but cant find a solid answer: https://bugs.chromium.org/p/chromedriver/issues/detail?id=732 (granted this was for chromium and I'm using chrome)

WebDriverError: no such session
  (Driver info: chromedriver=2.21.371459 (36d3d07f660ff2bc1bf28a75d1cdabed0983e7c4),platform=Mac OS X 10.11.5 x86_64)
    at WebDriverError (/Users/XXXXXXX/Documents/sweetmeeting/node_modules/selenium-webdriver/lib/error.js:27:10)
    at Object.checkLegacyResponse (/Users/XXXXXXX/Documents/sweetmeeting/node_modules/selenium-webdriver/lib/error.js:639:15)
    at parseHttpResponse (/Users/XXXXXXX/Documents/sweetmeeting/node_modules/selenium-webdriver/http/index.js:538:13)
    at /Users/XXXXXXX/Documents/sweetmeeting/node_modules/selenium-webdriver/http/index.js:472:11
    at ManagedPromise.invokeCallback_ (/Users/XXXXXXX/Documents/sweetmeeting/node_modules/selenium-webdriver/lib/promise.js:1379:14)
    at TaskQueue.execute_ (/Users/XXXXXXX/Documents/sweetmeeting/node_modules/selenium-webdriver/lib/promise.js:2913:14)
    at TaskQueue.executeNext_ (/Users/XXXXXXX/Documents/sweetmeeting/node_modules/selenium-webdriver/lib/promise.js:2896:21)
    at /Users/XXXXXXX/Documents/sweetmeeting/node_modules/selenium-webdriver/lib/promise.js:2820:25
    at /Users/XXXXXXX/Documents/sweetmeeting/node_modules/selenium-webdriver/lib/promise.js:639:7
    at process._tickCallback (node.js:369:9)
From: Task: WebElement.isDisplayed()
    at Driver.schedule (/Users/XXXXXXX/Documents/sweetmeeting/node_modules/selenium-webdriver/lib/webdriver.js:377:17)
    at WebElement.schedule_ (/Users/XXXXXXX/Documents/sweetmeeting/node_modules/selenium-webdriver/lib/webdriver.js:1744:25)
    at WebElement.isDisplayed (/Users/XXXXXXX/Documents/sweetmeeting/node_modules/selenium-webdriver/lib/webdriver.js:2110:17)
    at driver.findElements.then.error (/Users/XXXXXXX/Documents/sweetmeeting/Test/front_end_testing/spec/dashboard_tester.js:251:34)
    at ManagedPromise.invokeCallback_ (/Users/XXXXXXX/Documents/sweetmeeting/node_modules/selenium-webdriver/lib/promise.js:1379:14)
    at TaskQueue.execute_ (/Users/XXXXXXX/Documents/sweetmeeting/node_modules/selenium-webdriver/lib/promise.js:2913:14)
    at TaskQueue.executeNext_ (/Users/XXXXXXX/Documents/sweetmeeting/node_modules/selenium-webdriver/lib/promise.js:2896:21)
    at /Users/XXXXXXX/Documents/sweetmeeting/node_modules/selenium-webdriver/lib/promise.js:2775:27
    at /Users/XXXXXXX/Documents/sweetmeeting/node_modules/selenium-webdriver/lib/promise.js:639:7
    at process._tickCallback (node.js:369:9)

推荐答案

我们也已经为此问题苦苦了很长时间，最近又解决了这个问题，因此我认为如果有帮助，我会在这里发表.

We've also been struggling with this issue for a long time now and recently resolved it so thought I would post here incase it helps someone else.

对我们来说，这与内存有关.我们在docker容器中运行测试，并且docker默认dev/shm大小为64mb.增加这个数量对我们来说解决了没有这样的会话"的问题.

Turns out for us it was memory related. We run our tests inside a docker container and the docker default dev/shm size is 64mb. Increasing this resolved the "no such session" issue for us.

我们使用docker compose，因此仅将shm_size:256M添加到docker-compose.yml文件中.

We use docker compose so just added shm_size: 256M to the docker-compose.yml file.

这篇关于WebDriverError:通过Selenium和Jasmine使用ChromeDriver Chrome时，不会出现此类会话错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！