test: config Rails and Capybara to run inside a container #118

Author: hernanvicente

spec/rails_helper.rb

@@ -1,6 +1,6 @@
 # This file is copied to spec/ when you run 'rails generate rspec:install'
 require "spec_helper"
-ENV["RAILS_ENV"] ||= "test"
+ENV["RAILS_ENV"] = "test"
 require_relative "../config/environment"
 # Prevent database truncation if the environment is production
 abort("The Rails environment is running in production mode!") if Rails.env.production?

spec/support/capybara.rb

@@ -7,8 +7,13 @@
 end
 
 Capybara.register_driver :selenium_chrome_headless do |app|
-  options = Selenium::WebDriver::Chrome::Options.new(args: %w[headless disable-gpu window-size=1400,1400])
+  chrome_flags =  %w[headless disable-gpu window-size=1400,1400]
 
+  if ENV["DOCKER_CONTAINER"]
+    chrome_flags.concat(%w[no-sandbox disable-dev-shm-usage])
+  end
+
+  options = Selenium::WebDriver::Chrome::Options.new(args: chrome_flags)
   Capybara::Selenium::Driver.new(app, browser: :chrome, options: options)
 end