Module: Uh::WM::Testing::Headless

Defined in:
lib/uh/wm/testing/headless.rb

Constant Summary collapse

DISPLAY_NAME = 
':42'
DISPLAY_SCREEN = 
'640x480x24'

Instance Method Summary collapse

Instance Method Details

#with_xvfb ⇒ Object 



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# File 'lib/uh/wm/testing/headless.rb', line 10

def with_xvfb
  xvfb = ChildProcess.build(*%W[
    Xvfb -ac #{DISPLAY_NAME} -screen 0 #{DISPLAY_SCREEN}
  ])
  xvfb.start
  original_display = ENV['DISPLAY']
  ENV['DISPLAY'] = DISPLAY_NAME
  yield
  ENV['DISPLAY'] = original_display
  xvfb.stop
end