1 files changed, 57 insertions, 0 deletions
diff --git a/spec/ruby/core/process/uid_spec.rb b/spec/ruby/core/process/uid_spec.rb
new file mode 100644
index 0000000000..a068b1a2c1
--- /dev/null
+++ b/spec/ruby/core/process/uid_spec.rb
@@ -0,0 +1,57 @@
+require_relative '../../spec_helper'
+
+describe "Process.uid" do
+  platform_is_not :windows do
+    it "returns the correct uid for the user executing this process" do
+      current_uid_according_to_unix = `id -ur`.to_i
+      Process.uid.should == current_uid_according_to_unix
+    end
+  end
+
+  it "also goes by Process::UID.rid" do
+    Process::UID.rid.should == Process.uid
+  end
+
+  it "also goes by Process::Sys.getuid" do
+    Process::Sys.getuid.should == Process.uid
+  end
+end
+
+describe "Process.uid=" do
+  platform_is_not :windows do
+    it "raises TypeError if not passed an Integer" do
+      -> { Process.uid = Object.new }.should raise_error(TypeError)
+    end
+
+    as_user do
+      it "raises Errno::ERPERM if run by a non privileged user trying to set the superuser id" do
+        -> { (Process.uid = 0)}.should raise_error(Errno::EPERM)
+      end
+
+      it "raises Errno::ERPERM if run by a non privileged user trying to set the superuser id from username" do
+        -> { Process.uid = "root" }.should raise_error(Errno::EPERM)
+      end
+    end
+
+    as_superuser do
+      describe "if run by a superuser" do
+        it "sets the real user id for the current process" do
+          code = <<-RUBY
+            Process.uid = 1
+            puts Process.uid
+          RUBY
+          ruby_exe(code).should == "1\n"
+        end
+
+        it "sets the real user id if preceded by Process.euid=id" do
+          code = <<-RUBY
+            Process.euid = 1
+            Process.uid = 1
+            puts Process.uid
+          RUBY
+          ruby_exe(code).should == "1\n"
+        end
+      end
+    end
+  end
+end