1 files changed, 12 insertions, 1 deletions
diff --git a/spec/ruby/core/kernel/shared/kind_of.rb b/spec/ruby/core/kernel/shared/kind_of.rb
index 690018d655..0614c02214 100644
--- a/spec/ruby/core/kernel/shared/kind_of.rb
+++ b/spec/ruby/core/kernel/shared/kind_of.rb
@@ -31,7 +31,11 @@ describe :kernel_kind_of, shared: true do
     @o.send(@method, KernelSpecs::MyExtensionModule).should == true
   end
 
-  it "returns false if given a Module not included in object's class nor ancestors" do
+  it "returns true if given a Module that object has been prepended with" do
+    @o.send(@method, KernelSpecs::MyPrependedModule).should == true
+  end
+
+  it "returns false if given a Module not included nor prepended in object's class nor ancestors" do
     @o.send(@method, KernelSpecs::SomeOtherModule).should == false
   end
 
@@ -41,4 +45,11 @@ describe :kernel_kind_of, shared: true do
     lambda { @o.send(@method, :KindaClass) }.should raise_error(TypeError)
     lambda { @o.send(@method, Object.new) }.should raise_error(TypeError)
   end
+
+  it "does not take into account `class` method overriding" do
+    def @o.class; Integer; end
+
+    @o.send(@method, Integer).should == false
+    @o.send(@method, KernelSpecs::KindaClass).should == true
+  end
 end