diff options
Diffstat (limited to 'spec/ruby/core/module/singleton_class_spec.rb')
-rw-r--r-- | spec/ruby/core/module/singleton_class_spec.rb | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/spec/ruby/core/module/singleton_class_spec.rb b/spec/ruby/core/module/singleton_class_spec.rb new file mode 100644 index 0000000000..177dfc224f --- /dev/null +++ b/spec/ruby/core/module/singleton_class_spec.rb @@ -0,0 +1,27 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +describe "Module#singleton_class?" do + it "returns true for singleton classes" do + xs = self.singleton_class + xs.singleton_class?.should == true + end + + it "returns false for other classes" do + c = Class.new + c.singleton_class?.should == false + end + + describe "with singleton values" do + it "returns false for nil's singleton class" do + NilClass.singleton_class?.should == false + end + + it "returns false for true's singleton class" do + TrueClass.singleton_class?.should == false + end + + it "returns false for false's singleton class" do + FalseClass.singleton_class?.should == false + end + end +end |