Fixes #38246 - Show console logs in rails tests

developer_docs/foreman_dev_setup.asciidoc

@@ -206,6 +206,10 @@ Foreman's integration tests use the https://github.com/teamcapybara/capybara[Cap
 
 Adding `DEBUG_JS_TEST=1` to the test run, will open a web browser and run the tests in chrome.
 
+To print the warning and error javascript logs within your test, include `puts page.driver.browser.logs.get(:browser)` in the test run.
+Adding `SHOW_JS_LOG=1` to the test run will enable all levels of javascript logs for viewing.
+
+
 To run Foreman's integration tests:
 [source, shell]
 ....

test/integration_test_helper.rb

@@ -21,7 +21,15 @@
 
 Selenium::WebDriver::Chrome::Service.driver_path = ENV['TESTDRIVER_PATH'] || Foreman::Util.which('chromedriver', Rails.root.join('node_modules', '.bin'))
 
-javascript_driver = ENV.fetch("JS_TEST_DRIVER") { ENV['DEBUG_JS_TEST'] ? :selenium_chrome : :selenium_chrome_headless }.to_sym
+javascript_driver = ENV.fetch("JS_TEST_DRIVER") do
+  if ENV['SHOW_JS_LOG']
+    :logging_selenium_chrome
+  elsif ENV['DEBUG_JS_TEST']
+    :selenium_chrome
+  else
+    :selenium_chrome_headless
+  end
+end.to_sym
 
 def chrome_options
   options = Selenium::WebDriver::Chrome::Options.new
@@ -51,6 +59,19 @@ def chrome_options
       browser: :chrome,
       options: options)
   end
+elsif javascript_driver == :logging_selenium_chrome
+  ShowMeTheCookies.register_adapter(javascript_driver, ShowMeTheCookies::SeleniumChrome)
+  options = chrome_options
+  options.add_option("goog:loggingPrefs", {browser: 'ALL'})
+  unless ENV['DEBUG_JS_TEST']
+    options.args << '--headless'
+  end
+  Capybara.register_driver javascript_driver do |app|
+    Capybara::Selenium::Driver.new(
+      app,
+      browser: :chrome,
+      options: options)
+  end
 else
   Capybara.register_driver javascript_driver do |app|
     Capybara::Selenium::Driver.new(