Support usage of ICCCM compliant window in UAT

features/support/env.rb

@@ -28,6 +28,10 @@ Around '@other_wm_running' do |_, block|
   with_other_wm { block.call }
 end
 
+After '@icccm_window' do
+  icccm_window_ensure_stop
+end
+
 if ENV.key? 'TRAVIS'
   ENV['UHWMTEST_TIMEOUT'] = 8.to_s
 end

lib/uh/wm/testing/acceptance_helpers.rb

@@ -8,6 +8,19 @@ module Uh
         QUIT_KEYBINDING = 'alt+shift+q'.freeze
         LOG_READY       = 'Working events'.freeze
 
+        def icccm_window_start
+          @icccm_window = ChildProcess.build(*%w[xmessage window])
+          @icccm_window.start
+        end
+
+        def icccm_window_ensure_stop
+          @icccm_window.stop
+        end
+
+        def icccm_window_name
+          'xmessage'
+        end
+
         def uhwm_run options = '-v'
           command = %w[uhwm]
           command << options if options