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* 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
47 lines
1.9 KiB
Ruby
47 lines
1.9 KiB
Ruby
require File.expand_path('../../../spec_helper', __FILE__)
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require File.expand_path('../fixtures/classes', __FILE__)
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require File.expand_path('../shared/concat', __FILE__)
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describe "String#+" do
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it "returns a new string containing the given string concatenated to self" do
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("" + "").should == ""
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("" + "Hello").should == "Hello"
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("Hello" + "").should == "Hello"
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("Ruby !" + "= Rubinius").should == "Ruby != Rubinius"
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end
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it "converts any non-String argument with #to_str" do
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c = mock 'str'
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c.should_receive(:to_str).any_number_of_times.and_return(' + 1 = 2')
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("1" + c).should == '1 + 1 = 2'
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end
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it "raises a TypeError when given any object that fails #to_str" do
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lambda { "" + Object.new }.should raise_error(TypeError)
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lambda { "" + 65 }.should raise_error(TypeError)
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end
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it "doesn't return subclass instances" do
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(StringSpecs::MyString.new("hello") + "").should be_an_instance_of(String)
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(StringSpecs::MyString.new("hello") + "foo").should be_an_instance_of(String)
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(StringSpecs::MyString.new("hello") + StringSpecs::MyString.new("foo")).should be_an_instance_of(String)
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(StringSpecs::MyString.new("hello") + StringSpecs::MyString.new("")).should be_an_instance_of(String)
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(StringSpecs::MyString.new("") + StringSpecs::MyString.new("")).should be_an_instance_of(String)
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("hello" + StringSpecs::MyString.new("foo")).should be_an_instance_of(String)
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("hello" + StringSpecs::MyString.new("")).should be_an_instance_of(String)
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end
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it "taints the result when self or other is tainted" do
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strs = ["", "OK", StringSpecs::MyString.new(""), StringSpecs::MyString.new("OK")]
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strs += strs.map { |s| s.dup.taint }
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strs.each do |str|
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strs.each do |other|
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(str + other).tainted?.should == (str.tainted? | other.tainted?)
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end
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end
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end
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it_behaves_like :string_concat_encoding, :+
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end
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