1 files changed, 25 insertions, 0 deletions
diff --git a/spec/rubyspec/core/kernel/untrust_spec.rb b/spec/rubyspec/core/kernel/untrust_spec.rb
new file mode 100644
index 0000000000..280a465807
--- /dev/null
+++ b/spec/rubyspec/core/kernel/untrust_spec.rb
@@ -0,0 +1,25 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require File.expand_path('../fixtures/classes', __FILE__)
+
+describe "Kernel#untrust" do
+  it "returns self" do
+    o = Object.new
+    o.untrust.should equal(o)
+  end
+
+  it "sets the untrusted bit" do
+    o = Object.new
+    o.untrust
+    o.untrusted?.should == true
+  end
+
+  it "raises RuntimeError on a trusted, frozen object" do
+    o = Object.new.freeze
+    lambda { o.untrust }.should raise_error(RuntimeError)
+  end
+
+  it "does not raise an error on an untrusted, frozen object" do
+    o = Object.new.untrust.freeze
+    o.untrust.should equal(o)
+  end
+end