Connect to X server

features/steps/run_steps.rb

@@ -0,0 +1,4 @@
+When /^I start uhwm$/ do
+  @process = run 'uhwm'
+  @interactive = @process
+end

features/steps/x_steps.rb

@@ -0,0 +1,10 @@
+Then /^it must connect to X display$/ do
+  Timeout.timeout(exit_timeout) do
+    loop do
+      break if assert_partial_output_interactive 'Connected to'
+      sleep 0.1
+    end
+  end
+  expect(`sockstat -u`.lines.grep /\s+ruby.+\s+#{@process.pid}/)
+    .not_to be_empty
+end

features/support/env.rb

@@ -1,4 +1,12 @@
 require 'aruba/cucumber'
 require 'headless'
 
+module Aruba
+  class SpawnProcess
+    def pid
+      @process.pid
+    end
+  end
+end
+
 Headless.new.start

features/x/connection.feature

@@ -0,0 +1,5 @@
+Feature: connection to X server
+
+  Scenario: connects to X server
+    When I start uhwm
+    Then it must connect to X display