diff options
author | eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-05-07 12:04:49 +0000 |
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committer | eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-05-07 12:04:49 +0000 |
commit | 95e8c48dd3348503a8c7db5d0498894a1b676395 (patch) | |
tree | 9eef7f720314ebaff56845a74e203770e62284e4 /spec/rubyspec/core/string/dup_spec.rb | |
parent | ed7d803500de38186c74bce94d233e85ef51e503 (diff) |
Add in-tree mspec and ruby/spec
* For easier modifications of ruby/spec by MRI developers.
* .gitignore: track changes under spec.
* spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec.
These files can therefore be updated like any other file in MRI.
Instructions are provided in spec/README.
[Feature #13156] [ruby-core:79246]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'spec/rubyspec/core/string/dup_spec.rb')
-rw-r--r-- | spec/rubyspec/core/string/dup_spec.rb | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/spec/rubyspec/core/string/dup_spec.rb b/spec/rubyspec/core/string/dup_spec.rb new file mode 100644 index 0000000000..81fb1308cc --- /dev/null +++ b/spec/rubyspec/core/string/dup_spec.rb @@ -0,0 +1,52 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes', __FILE__) + +describe "String#dup" do + before :each do + ScratchPad.clear + @obj = StringSpecs::InitializeString.new "string" + end + + it "calls #initialize_copy on the new instance" do + dup = @obj.dup + ScratchPad.recorded.should_not == @obj.object_id + ScratchPad.recorded.should == dup.object_id + end + + it "copies instance variables" do + dup = @obj.dup + dup.ivar.should == 1 + end + + it "does not copy singleton methods" do + def @obj.special() :the_one end + dup = @obj.dup + lambda { dup.special }.should raise_error(NameError) + end + + it "does not copy modules included in the singleton class" do + class << @obj + include StringSpecs::StringModule + end + + dup = @obj.dup + lambda { dup.repr }.should raise_error(NameError) + end + + it "does not copy constants defined in the singleton class" do + class << @obj + CLONE = :clone + end + + dup = @obj.dup + lambda { class << dup; CLONE; end }.should raise_error(NameError) + end + + it "does not modify the original string when changing dupped string" do + orig = "string"[0..100] + dup = orig.dup + orig[0] = 'x' + orig.should == "xtring" + dup.should == "string" + end +end |