1 files changed, 59 insertions, 0 deletions
diff --git a/spec/ruby/core/process/euid_spec.rb b/spec/ruby/core/process/euid_spec.rb
new file mode 100644
index 0000000000..1855ef66f5
--- /dev/null
+++ b/spec/ruby/core/process/euid_spec.rb
@@ -0,0 +1,59 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe "Process.euid" do
+  it "returns the effective user ID for this process" do
+    Process.euid.should be_kind_of(Fixnum)
+  end
+
+  it "also goes by Process::UID.eid" do
+    Process::UID.eid.should == Process.euid
+  end
+
+  it "also goes by Process::Sys.geteuid" do
+    Process::Sys.geteuid.should == Process.euid
+  end
+end
+
+describe "Process.euid=" do
+
+  platform_is_not :windows do
+    it "raises TypeError if not passed an Integer" do
+      lambda { Process.euid = Object.new }.should raise_error(TypeError)
+    end
+
+    as_user do
+      it "raises Errno::ERPERM if run by a non superuser trying to set the superuser id" do
+        lambda { (Process.euid = 0)}.should raise_error(Errno::EPERM)
+      end
+
+      it "raises Errno::ERPERM if run by a non superuser trying to set the superuser id from username" do
+        lambda { Process.euid = "root" }.should raise_error(Errno::EPERM)
+      end
+    end
+
+    as_superuser do
+      describe "if run by a superuser" do
+        with_feature :fork do
+          it "sets the effective user id for the current process if run by a superuser" do
+            read, write = IO.pipe
+            pid = Process.fork do
+              begin
+                read.close
+                Process.euid = 1
+                write << Process.euid
+                write.close
+              rescue Exception => e
+                write << e << e.backtrace
+              end
+              Process.exit!
+            end
+            write.close
+            euid = read.gets
+            euid.should == "1"
+            Process.wait pid
+          end
+        end
+      end
+    end
+  end
+end