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Versions: 52
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Contents
require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/classes.rb', __FILE__)
describe "String#+" do
it "returns a new string containing the given string concatenated to self" do
("" + "").should == ""
("" + "Hello").should == "Hello"
("Hello" + "").should == "Hello"
("Ruby !" + "= Rubinius").should == "Ruby != Rubinius"
end
it "converts any non-String argument with #to_str" do
c = mock 'str'
c.should_receive(:to_str).any_number_of_times.and_return(' + 1 = 2')
("1" + c).should == '1 + 1 = 2'
end
it "raises a TypeError when given any object that fails #to_str" do
lambda { "" + Object.new }.should raise_error(TypeError)
lambda { "" + 65 }.should raise_error(TypeError)
end
it "doesn't return subclass instances" do
(StringSpecs::MyString.new("hello") + "").should be_kind_of(String)
(StringSpecs::MyString.new("hello") + "foo").should be_kind_of(String)
(StringSpecs::MyString.new("hello") + StringSpecs::MyString.new("foo")).should be_kind_of(String)
(StringSpecs::MyString.new("hello") + StringSpecs::MyString.new("")).should be_kind_of(String)
(StringSpecs::MyString.new("") + StringSpecs::MyString.new("")).should be_kind_of(String)
("hello" + StringSpecs::MyString.new("foo")).should be_kind_of(String)
("hello" + StringSpecs::MyString.new("")).should be_kind_of(String)
end
it "taints the result when self or other is tainted" do
strs = ["", "OK", StringSpecs::MyString.new(""), StringSpecs::MyString.new("OK")]
strs += strs.map { |s| s.dup.taint }
strs.each do |str|
strs.each do |other|
(str + other).tainted?.should == (str.tainted? | other.tainted?)
end
end
end
end
Version data entries
52 entries across 52 versions & 2 rubygems