1 files changed, 16 insertions, 14 deletions
diff --git a/spec/ruby/core/module/instance_methods_spec.rb b/spec/ruby/core/module/instance_methods_spec.rb
index d2d38cdda2..dbb6df8c34 100644
--- a/spec/ruby/core/module/instance_methods_spec.rb
+++ b/spec/ruby/core/module/instance_methods_spec.rb
@@ -4,21 +4,22 @@ require_relative 'fixtures/classes'
 describe "Module#instance_methods" do
   it "does not return methods undefined in a superclass" do
     methods = ModuleSpecs::Parent.instance_methods(false)
-    methods.should_not include(:undefed_method)
+    methods.should_not.include?(:undefed_method)
   end
 
   it "only includes module methods on an included module" do
     methods = ModuleSpecs::Basic.instance_methods(false)
-    methods.should include(:public_module)
+    methods.should.include?(:public_module)
     # Child is an including class
     methods = ModuleSpecs::Child.instance_methods(false)
-    methods.should include(:public_child)
-    methods.should_not include(:public_module)
+    methods.should.include?(:public_child)
+    methods.should_not.include?(:public_module)
   end
 
   it "does not return methods undefined in a subclass" do
     methods = ModuleSpecs::Grandchild.instance_methods
-    methods.should_not include(:parent_method, :another_parent_method)
+    methods.should_not.include?(:parent_method)
+    methods.should_not.include?(:another_parent_method)
   end
 
   it "does not return methods undefined in the current class" do
@@ -28,34 +29,35 @@ describe "Module#instance_methods" do
     end
     ModuleSpecs::Child.send(:undef_method, :undefed_child)
     methods = ModuleSpecs::Child.instance_methods
-    methods.should_not include(:undefed_method, :undefed_child)
+    methods.should_not.include?(:undefed_method)
+    methods.should_not.include?(:undefed_child)
   end
 
   it "does not return methods from an included module that are undefined in the class" do
-    ModuleSpecs::Grandchild.instance_methods.should_not include(:super_included_method)
+    ModuleSpecs::Grandchild.instance_methods.should_not.include?(:super_included_method)
   end
 
   it "returns the public and protected methods of self if include_super is false" do
     methods = ModuleSpecs::Parent.instance_methods(false)
-    methods.should include(:protected_parent, :public_parent)
+    methods.to_set.should >= Set[:protected_parent, :public_parent]
 
     methods = ModuleSpecs::Child.instance_methods(false)
-    methods.should include(:protected_child, :public_child)
+    methods.to_set.should >= Set[:protected_child, :public_child]
   end
 
   it "returns the public and protected methods of self and it's ancestors" do
     methods = ModuleSpecs::Basic.instance_methods
-    methods.should include(:protected_module, :public_module)
+    methods.to_set.should >= Set[:protected_module, :public_module]
 
     methods = ModuleSpecs::Super.instance_methods
-    methods.should include(:protected_module, :protected_super_module,
-                           :public_module, :public_super_module)
+    methods.to_set.should >= Set[:protected_module, :protected_super_module,
+                                 :public_module, :public_super_module]
   end
 
   it "makes a private Object instance method public in Kernel" do
     methods = Kernel.instance_methods
-    methods.should include(:module_specs_private_method_on_object_for_kernel_public)
+    methods.should.include?(:module_specs_private_method_on_object_for_kernel_public)
     methods = Object.instance_methods
-    methods.should_not include(:module_specs_private_method_on_object_for_kernel_public)
+    methods.should_not.include?(:module_specs_private_method_on_object_for_kernel_public)
   end
 end