1 files changed, 28 insertions, 0 deletions
diff --git a/spec/ruby/core/process/setpgid_spec.rb b/spec/ruby/core/process/setpgid_spec.rb
new file mode 100644
index 0000000000..bd1596d0eb
--- /dev/null
+++ b/spec/ruby/core/process/setpgid_spec.rb
@@ -0,0 +1,28 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe "Process.setpgid" do
+  with_feature :fork do
+    it "sets the process group id of the specified process" do
+      rd, wr = IO.pipe
+
+      pid = Process.fork do
+        wr.close
+        rd.read
+        rd.close
+        Process.exit!
+      end
+
+      rd.close
+
+      begin
+        Process.getpgid(pid).should == Process.getpgrp
+        Process.setpgid(mock_int(pid), mock_int(pid)).should == 0
+        Process.getpgid(pid).should == pid
+      ensure
+        wr.write ' '
+        wr.close
+        Process.wait pid
+      end
+    end
+  end
+end