require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/classes', __FILE__)

# Prior to MRI 1.9 #instance_methods returned an Array of Strings
ruby_version_is ""..."1.9" do
  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")
    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")
    end

    it "does not return methods undefined in the current class" do
      ModuleSpecs::Child.send(:undef_method, 'undefed_child')
      methods = ModuleSpecs::Child.instance_methods
      methods.should_not include("undefed_method", "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")
    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 = ModuleSpecs::Child.instance_methods(false)
      methods.should include("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 = ModuleSpecs::Super.instance_methods
      methods.should include("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 = Object.instance_methods
      methods.should_not include("module_specs_private_method_on_object_for_kernel_public")
    end
  end
end


# As of MRI 1.9 #instance_methods returns an Array of Symbols
ruby_version_is "1.9" do
  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)
    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)
    end

    it "does not return methods undefined in the current class" do
      ModuleSpecs::Child.send(:undef_method, 'undefed_child')
      methods = ModuleSpecs::Child.instance_methods
      methods.should_not include(:undefed_method, :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)
    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 = ModuleSpecs::Child.instance_methods(false)
      methods.should include(: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 = ModuleSpecs::Super.instance_methods
      methods.should include(: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 = Object.instance_methods
      methods.should_not include(:module_specs_private_method_on_object_for_kernel_public)
    end
  end
end
