Ensure only one client is managed for given window

features/steps/output_steps.rb

@@ -23,6 +23,10 @@ Then /^the output must match \/([^\/]+)\/([a-z]*)$/ do |pattern, options|
   uhwm_wait_output Regexp.new(pattern, options)
 end
 
+Then /^the output must not match \/([^\/]+)\/([a-z]*)$/ do |pattern, options|
+  expect(all_output).not_to match Regexp.new(pattern, options)
+end
+
 Then /^the output must contain:$/ do |content|
   uhwm_wait_output content.to_s
 end

features/steps/run_steps.rb

@@ -27,6 +27,11 @@ When /^I tell uhwm to quit$/ do
   x_key 'alt+shift+q'
 end
 
+When /^I quit uhwm$/ do
+  x_key 'alt+shift+q'
+  assert_exit_status 0
+end
+
 Then /^the exit status must be (\d+)$/ do |exit_status|
   assert_exit_status exit_status.to_i
 end

features/steps/x_steps.rb

@@ -6,6 +6,10 @@ When /^a window requests to be mapped$/ do
   x_window_map
 end
 
+When /^a window requests to be mapped (\d+) times$/ do |times|
+  x_window_map times: times.to_i
+end
+
 Then /^it must connect to X display$/ do
   uhwm_wait_output 'Connected to'
   expect(x_socket_check uhwm_pid).to be true