signal test for CI

test/test_signal.rb

@@ -0,0 +1,16 @@
+require File.expand_path('../helper', __FILE__)
+
+class TestSignal < Rake::TestCase
+
+  def test_signal
+    puts "DBG: PARENT $$=#{$$.inspect}"
+    fork {
+      puts "DBG: CHILD $$=#{$$.inspect}"
+      Process.kill "TERM", $$
+    }
+    Process.wait
+    puts "DBG: $?.respond_to?(:signaled?)=#{$?.respond_to?(:signaled?).inspect}"
+    puts "DBG: $?.signaled?=#{$?.signaled?.inspect}" if $?.respond_to?(:signaled?)
+    puts "DBG: $?=#{$?.inspect}"
+  end
+end