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Diffstat (limited to 'spec/ruby/core/class/dup_spec.rb')
-rw-r--r-- | spec/ruby/core/class/dup_spec.rb | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/spec/ruby/core/class/dup_spec.rb b/spec/ruby/core/class/dup_spec.rb new file mode 100644 index 0000000000..0548536bd6 --- /dev/null +++ b/spec/ruby/core/class/dup_spec.rb @@ -0,0 +1,64 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes', __FILE__) + +# NOTE: This is actually implemented by Module#initialize_copy +describe "Class#dup" do + it "duplicates both the class and the singleton class" do + klass = Class.new do + def hello + "hello" + end + + def self.message + "text" + end + end + + klass_dup = klass.dup + + klass_dup.new.hello.should == "hello" + klass_dup.message.should == "text" + end + + it "retains an included module in the ancestor chain for the singleton class" do + klass = Class.new + mod = Module.new do + def hello + "hello" + end + end + + klass.extend(mod) + klass_dup = klass.dup + klass_dup.hello.should == "hello" + end + + it "retains the correct ancestor chain for the singleton class" do + super_klass = Class.new do + def hello + "hello" + end + + def self.message + "text" + end + end + + klass = Class.new(super_klass) + klass_dup = klass.dup + + klass_dup.new.hello.should == "hello" + klass_dup.message.should == "text" + end + + it "sets the name from the class to nil if not assigned to a constant" do + copy = CoreClassSpecs::Record.dup + copy.name.should be_nil + end + + it "stores the new name if assigned to a constant" do + CoreClassSpecs::RecordCopy = CoreClassSpecs::Record.dup + CoreClassSpecs::RecordCopy.name.should == "CoreClassSpecs::RecordCopy" + end + +end |