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Diffstat (limited to 'spec/ruby/core/string/clone_spec.rb')
-rw-r--r-- | spec/ruby/core/string/clone_spec.rb | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/spec/ruby/core/string/clone_spec.rb b/spec/ruby/core/string/clone_spec.rb new file mode 100644 index 0000000000..3940858e53 --- /dev/null +++ b/spec/ruby/core/string/clone_spec.rb @@ -0,0 +1,58 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes', __FILE__) + +describe "String#clone" do + before :each do + ScratchPad.clear + @obj = StringSpecs::InitializeString.new "string" + end + + it "calls #initialize_copy on the new instance" do + clone = @obj.clone + ScratchPad.recorded.should_not == @obj.object_id + ScratchPad.recorded.should == clone.object_id + end + + it "copies instance variables" do + clone = @obj.clone + clone.ivar.should == 1 + end + + it "copies singleton methods" do + def @obj.special() :the_one end + clone = @obj.clone + clone.special.should == :the_one + end + + it "copies modules included in the singleton class" do + class << @obj + include StringSpecs::StringModule + end + + clone = @obj.clone + clone.repr.should == 1 + end + + it "copies constants defined in the singleton class" do + class << @obj + CLONE = :clone + end + + clone = @obj.clone + (class << clone; CLONE; end).should == :clone + end + + it "copies frozen state" do + @obj.freeze.clone.frozen?.should be_true + "".freeze.clone.frozen?.should be_true + end + + it "does not modify the original string when changing cloned string" do + orig = "string"[0..100] + clone = orig.clone + orig[0] = 'x' + orig.should == "xtring" + clone.should == "string" + end +end + |