在无头模式下使用硒铬节点时，Protractor无法在页面上找到Angular

Question

我正在使用量角器指令来确定我可以使用无头浏览器。

所以按照指示。。。

conf.js

exports.config = {
seleniumAddress: 'http://seleniumhub:4444/wd/hub',
multiCapabilities: [
{
browserName: 'firefox',
'moz:firefoxOptions': {
args: [
"--headless",
]
}
},
{
browserName: 'chrome',
chromeOptions: {
args: [
// chrome will crash without this
'--headless',
"--disable-gpu",
]
}
}
],
framework: 'jasmine2',
jasmineNodeOpts: {
showColors: true,
defaultTimeoutInterval: 30000,
},
specs: ['todo-spec.js']
};  

todo-spec.js

describe('angularjs homepage todo list', function() {
it('should add a todo', function() {
browser.get('https://angularjs.org');
element(by.model('todoList.todoText')).sendKeys('write first protractor test');
element(by.css('[value="add"]')).click();
var todoList = element.all(by.repeater('todo in todoList.todos'));
expect(todoList.count()).toEqual(3);
expect(todoList.get(2).getText()).toEqual('write first protractor test');
// You wrote your first test, cross it off the list
todoList.get(2).element(by.css('input')).click();
var completedAmount = element.all(by.css('.done-true'));
expect(completedAmount.count()).toEqual(2);
});
});

在我的节点8.8.1容器中，我运行

./node_modules/.bin/protractor conf.js

标准的东西真的很香草，因为我想找到罪魁祸首是什么。

当测试运行时，firefox通过，chrome通过失败

E/量角器-在页面上找不到Angularhttps://angularjs.org/：重试查找超出的角度

有什么线索/想法/建议吗？

我的"seleniumhub"是一个带有firefox和chrome节点的码头硒网格。所有内容都在3.6.0版本上。

总结一下这些版本。。。

• 节点8.8.1(docker)
• Selenium Hub 3.6.0(码头工人)
• 硒铬节点3.6.0(docker)
• Selenium Firefox节点3.6.0(docker)
• 量角器5.2.0

还有我的docker compose.yml

version: "3.2"
services:
seleniumhub:
image: selenium/hub:${SELENIUM_VERSION}
networks:
- private
ports:
- 4444:4444
environment:
# As integer, maps to "maxSession"
GRID_MAX_SESSION: 10
# In milliseconds, maps to "newSessionWaitTimeout"
GRID_NEW_SESSION_WAIT_TIMEOUT: -1
# As a boolean, maps to "throwOnCapabilityNotPresent"
GRID_THROW_ON_CAPABILITY_NOT_PRESENT: 'true'
# As an integer
GRID_JETTY_MAX_THREADS: -1
# In milliseconds, maps to "cleanUpCycle"
GRID_CLEAN_UP_CYCLE: 5000
# In seconds, maps to "browserTimeout"
GRID_BROWSER_TIMEOUT: 0
# In seconds, maps to "timeout"
GRID_TIMEOUT: 30
# Debug
GRID_DEBUG: 'false'
depends_on:
- webserver
firefoxnode:
image: selenium/node-firefox${SELENIUM_DEBUG}:${SELENIUM_VERSION}
networks:
- private
volumes:
- /dev/urandom:/dev/random
- .:/tmp/app:cached
depends_on:
- seleniumhub
environment:
HUB_PORT_4444_TCP_ADDR: seleniumhub
HUB_PORT_4444_TCP_PORT: 4444
# https://stackoverflow.com/questions/13723349/selenium-grid-maxsessions-vs-maxinstances
NODE_MAX_SESSION: 10
NODE_MAX_INSTANCES: 10
chromenode:
image: selenium/node-chrome${SELENIUM_DEBUG}:${SELENIUM_VERSION}
networks:
- private
volumes:
- /dev/urandom:/dev/random:ro
- /dev/shm:/dev/shm:ro
- .:/tmp/app:cached
depends_on:
- seleniumhub
environment:
HUB_PORT_4444_TCP_ADDR: seleniumhub
HUB_PORT_4444_TCP_PORT: 4444
# https://stackoverflow.com/questions/13723349/selenium-grid-maxsessions-vs-maxinstances
NODE_MAX_SESSION: 10
NODE_MAX_INSTANCES: 10
node:
depends_on:
- seleniumhub

提前感谢

Answer 1

所以罪魁祸首是/dev/urandom和/dev/shm共享。如果它们被移除，一切都会好起来。

硒2.53.1需要这些功能，但当前版本不需要。

因此，请享受其余配置。它只是起作用。：)