Address comments

Author: andrykonchin

core/kernel/clone_spec.rb

@@ -136,6 +136,14 @@ def klass.allocate
     end
   end
 
+  describe "with freeze: anything else" do
+    it 'raises ArgumentError when passed not true/false/nil' do
+      -> { @obj.clone(freeze: 1) }.should raise_error(ArgumentError, /unexpected value for freeze: Integer/)
+      -> { @obj.clone(freeze: "") }.should raise_error(ArgumentError, /unexpected value for freeze: String/)
+      -> { @obj.clone(freeze: Object.new) }.should raise_error(ArgumentError, /unexpected value for freeze: Object/)
+    end
+  end
+
   it "copies instance variables" do
     clone = @obj.clone
     clone.one.should == 1

core/numeric/clone_spec.rb

@@ -22,4 +22,9 @@
   it "raises ArgumentError if passed freeze: false" do
     -> { 1.clone(freeze: false) }.should raise_error(ArgumentError, /can't unfreeze/)
   end
+
+  it "does not change frozen status if passed freeze: nil" do
+    value = 1
+    value.clone(freeze: nil).should equal(value)
+  end
 end