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Diffstat (limited to 'spec/ruby/core/module/case_compare_spec.rb')
-rw-r--r-- | spec/ruby/core/module/case_compare_spec.rb | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/spec/ruby/core/module/case_compare_spec.rb b/spec/ruby/core/module/case_compare_spec.rb new file mode 100644 index 0000000000..92f2c2065b --- /dev/null +++ b/spec/ruby/core/module/case_compare_spec.rb @@ -0,0 +1,31 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes', __FILE__) + +describe "Module#===" do + it "returns true when the given Object is an instance of self or of self's descendants" do + (ModuleSpecs::Child === ModuleSpecs::Child.new).should == true + (ModuleSpecs::Parent === ModuleSpecs::Parent.new).should == true + + (ModuleSpecs::Parent === ModuleSpecs::Child.new).should == true + (Object === ModuleSpecs::Child.new).should == true + + (ModuleSpecs::Child === String.new).should == false + (ModuleSpecs::Child === mock('x')).should == false + end + + it "returns true when the given Object's class includes self or when the given Object is extended by self" do + (ModuleSpecs::Basic === ModuleSpecs::Child.new).should == true + (ModuleSpecs::Super === ModuleSpecs::Child.new).should == true + (ModuleSpecs::Basic === mock('x').extend(ModuleSpecs::Super)).should == true + (ModuleSpecs::Super === mock('y').extend(ModuleSpecs::Super)).should == true + + (ModuleSpecs::Basic === ModuleSpecs::Parent.new).should == false + (ModuleSpecs::Super === ModuleSpecs::Parent.new).should == false + (ModuleSpecs::Basic === mock('z')).should == false + (ModuleSpecs::Super === mock('a')).should == false + end + + it "does not let a module singleton class interfere when its on the RHS" do + (Class === ModuleSpecs::CaseCompareOnSingleton).should == false + end +end |