我觉得我已经很近了,但是碰到了墙,所以很高兴能得到一些建议。
我的目标是能够运行我的系统测试和使用Chrome进行屏幕截图。
非JS测试使用:rack_test
通过。
由:remote_browser
驱动(我的Chrome设置)时,我可以访问路径,并截取显示无法访问此站点的屏幕截图 127.0.0.1拒绝连接。
还值得一提的是,如果我尝试将vnc与open vnc://localhost:5900
一起使用,则会出现错误与“本地主机”的连接失败无法与“本地主机”通信。确保远程计算机可用并且防火墙没有阻止屏幕共享。
我知道我丢失了一些东西,但是什么东西都被卡住了。
这是我的docker-compose.yml
文件。我正在使用独立的Chrome图像。
version: '3'
services:
app: &app
build: .
tmpfs:
- /tmp
backend: &backend
<<: *app
stdin_open: true
tty: true
volumes:
- .:/usr/src/app:cached
- rails_cache:/usr/src/app/tmp/cache
- bundle:/usr/local/bundle
- node_modules:/app/node_modules
- packs:/app/public/packs
env_file:
- .env/development/database
- .env/development/web
environment:
- WEBPACKER_DEV_SERVER_HOST=webpack-dev-server
web:
<<: *backend
entrypoint: ./bin/docker-entrypoint.sh
command: bundle exec rails server -b 0.0.0.0
ports:
- "3000:3000"
chrome:
image: selenium/standalone-chrome:3.141.59
ports:
- "4444:4444"
- "5900:5900"
webpack-dev-server:
<<: *app
command: ./bin/webpack-dev-server
volumes:
- .:/usr/src/app:cached
- bundle:/usr/local/bundle
- node_modules:/app/node_modules
- packs:/app/public/packs
ports:
- "3035:3035"
environment:
- WEBPACKER_DEV_SERVER_HOST=0.0.0.0
database:
image: postgres
env_file:
- .env/development/database
volumes:
- db_data:/var/lib/postgresql/data
volumes:
db_data:
rails_cache:
bundle:
node_modules:
packs:
我的Gemfile
包括capybara
和selenium-webdriver
group :test do
gem 'capybara', '~> 3.32', '>= 3.32.1'
gem 'selenium-webdriver', '~> 3.142', '>= 3.142.7'
end
然后我的rails_helper.rb
文件包括此
require 'capybara/rspec'
require 'selenium-webdriver'
Capybara.server_host = '0.0.0.0'
Capybara.server_port = 3000
Capybara.app_host = "http://localhost:3000"
Capybara.register_driver :remote_browser do |app|
capabilities = Selenium::WebDriver::Remote::Capabilities.chrome(
chromeOptions: { args: %w(disable-gpu no-sandbox) }
)
Capybara::Selenium::Driver.new(app,
:browser => :remote,
url: "http://chrome:4444/wd/hub",
desired_capabilities: capabilities
)
end
Capybara.javascript_driver = :remote_browser
运行测试时,我以Docker启动
docker-compose up chrome database
在我的日志中,我看到有关启动Chrome服务的信息。
chrome_1 | 2020-04-24 16:17:05,059 INFO spawned: 'xvfb' with pid 10
chrome_1 | 2020-04-24 16:17:05,060 INFO spawned: 'selenium-standalone' with pid 11
chrome_1 | 16:17:05.229 INFO [GridLauncherV3.parse] - Selenium server version: 3.141.59, revision: e82be7d358
chrome_1 | 2020-04-24 16:17:05,230 INFO success: xvfb entered RUNNING state, process has stayed up for > than 0 seconds (startsecs)
chrome_1 | 2020-04-24 16:17:05,230 INFO success: selenium-standalone entered RUNNING state, process has stayed up for > than 0 seconds (startsecs)
chrome_1 | 16:17:05.289 INFO [GridLauncherV3.lambda$buildLaunchers$3] - Launching a standalone Selenium Server on port 4444
chrome_1 | 2020-04-24 16:17:05.328:INFO::main: Logging initialized @260ms to org.seleniumhq.jetty9.util.log.StdErrLog
chrome_1 | 16:17:05.486 INFO [WebDriverServlet.<init>] - Initialising WebDriverServlet
chrome_1 | 16:17:05.548 INFO [SeleniumServer.boot] - Selenium Server is up and running on port 4444
然后我用这个进行系统测试
docker-compose run --rm web bundle exec rspec spec/system/example_spec.rb
我的示例测试非常简单
require 'rails_helper'
RSpec.describe "Example", type: :system do
before do
driven_by(:remote_browser)
end
it "should take a screenshot of root path" do
visit root_path
take_screenshot
end
end
它运行并通过
[Screenshot]: /usr/src/app/tmp/screenshots/r_spec_example_598.png
.
Finished in 0.77216 seconds (files took 1.73 seconds to load)
1 example, 0 failures
这里是日志
chrome_1 | 16:29:55.662 INFO [ActiveSessionFactory.apply] - Capabilities are: {
chrome_1 | "browserName": "chrome",
chrome_1 | "chromeOptions": {
chrome_1 | "args": [
chrome_1 | "disable-gpu",
chrome_1 | "no-sandbox"
chrome_1 | ]
chrome_1 | },
chrome_1 | "cssSelectorsEnabled": true,
chrome_1 | "javascriptEnabled": true,
chrome_1 | "nativeEvents": false,
chrome_1 | "rotatable": false,
chrome_1 | "takesScreenshot": false,
chrome_1 | "version": ""
chrome_1 | }
chrome_1 | 16:29:55.662 INFO [ActiveSessionFactory.lambda$apply$11] - Matched factory org.openqa.selenium.grid.session.remote.ServicedSession$Factory (provider: org.openqa.selenium.chrome.ChromeDriverService)
chrome_1 | Starting ChromeDriver 81.0.4044.69 (6813546031a4bc83f717a2ef7cd4ac6ec1199132-refs/branch-heads/4044@{#776}) on port 13909
chrome_1 | Only local connections are allowed.
chrome_1 | Please protect ports used by ChromeDriver and related test frameworks to prevent access by malicious code.
chrome_1 | [1587745795.669][SEVERE]: bind() failed: Cannot assign requested address (99)
chrome_1 | 16:29:55.943 INFO [ProtocolHandshake.createSession] - Detected dialect: W3C
chrome_1 | 16:29:55.943 INFO [RemoteSession$Factory.lambda$performHandshake$0] - Started new session d8f42b8387f0160b95f333eac5c1b576 (org.openqa.selenium.chrome.ChromeDriverService)
chrome_1 | 16:29:56.287 INFO [ActiveSessions$1.onStop] - Removing session d8f42b8387f0160b95f333eac5c1b576 (org.openqa.selenium.chrome.ChromeDriverService)
屏幕截图看起来像这样...
此外,这是我尝试打开vnc://localhost:5900
时的错误消息>
到了这一点,我即将承认失败而不是测试这些用例,因此,我将不胜感激一些建议。谢谢!
我感觉自己很近,但是碰到了墙,所以请多多指教。我的目标是能够运行系统测试并使用Chrome(截图)。非JS测试使用:...
感谢托马斯·沃波尔(Thomas Walpole)向我指出正确的方向。