1 files changed, 29 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..be724e9007
--- /dev/null
+++ b/spec/ruby/core/process/setpgid_spec.rb
@@ -0,0 +1,29 @@
+require_relative '../../spec_helper'
+
+describe "Process.setpgid" do
+  platform_is_not :windows do
+    # Must use fork as setpgid(2) gives EACCESS after execve()
+    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