Question

如何配置Heroku CI以运行系统测试？

这是我的app.json，其中包含了我认为是必要的buildpacks：

    {
  "environments": {
    "test": {
      "scripts": {
        "test-setup": "bin/rails assets:precompile",
        "test": "bin/rails test:system"
      },
      "addons":[
        "heroku-postgresql:in-dyno"
      ],
      "buildpacks": [
        { "url": "https://github.com/heroku/heroku-buildpack-google-chrome" },
        { "url": "heroku/nodejs" },
        { "url": "heroku/ruby"}
      ]
    }
  }
}

但是当我部署时，出现以下错误：

-----> Running test command `bin/rails test:system`...
rails aborted!
Webdrivers::BrowserNotFound: Failed to find Chrome binary.

我怀疑我缺少一些非常基本的东西。...

我正在运行Rails 6.0.1和Ruby 2.6.3。

Answer 1

您是否正确设置了网络驱动程序以找到正确的二进制文件，如on the official UAT wiki page of heroku所述？

将gem 'webdrivers'添加到您的Gemfile。
将以下代码段添加到您的test_helper.rb（如on heroku buildback wiki和webdrivers wiki所述）：

require 'webdrivers' # Make sure webdrivers are loaded.

chrome_bin = ENV['GOOGLE_CHROME_SHIM'] if ENV['GOOGLE_CHROME_SHIM'].present?

chrome_capabilities = Selenium::WebDriver::Remote::Capabilities.chrome(
  chromeOptions: {
    # You may want to use a different args
    args: %w[headless disable-gpu window-size=1400x1400],
    binary: chrome_bin
  }
)

Capybara.register_driver :heroku_chrome do |app|
  Capybara::Selenium::Driver.new(app, browser: :chrome, desired_capabilities: chrome_capabilities)
end

然后通过将其添加到application_system_test_case.rb来告诉系统测试使用自定义chrome驱动程序。

class ApplicationSystemTestCase < ActionDispatch::SystemTestCase
  driven_by :heroku_chrome
end

如何在Heroku CI中运行Rails系统测试

1 个答案: