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describe :string_replace, :shared => true do
it "returns self" do
a = "a"
a.send(@method, "b").should equal(a)
end
it "replaces the content of self with other" do
a = "some string"
a.send(@method, "another string")
a.should == "another string"
end
it "taints self if other is tainted" do
a = ""
b = "".taint
a.send(@method, b)
a.tainted?.should == true
end
it "does not untaint self if other is untainted" do
a = "".taint
b = ""
a.send(@method, b)
a.tainted?.should == true
end
ruby_version_is "1.9" do
it "untrusts self if other is untrusted" do
a = ""
b = "".untrust
a.send(@method, b)
a.untrusted?.should == true
end
it "does not trust self if other is trusted" do
a = "".untrust
b = ""
a.send(@method, b)
a.untrusted?.should == true
end
it "replaces the encoding of self with that of other" do
a = "".encode("UTF-16LE")
b = "".encode("UTF-8")
a.send(@method, b)
a.encoding.should == Encoding::UTF_8
end
end
it "tries to convert other to string using to_str" do
other = mock('x')
other.should_receive(:to_str).and_return("converted to a string")
"hello".send(@method, other).should == "converted to a string"
end
it "raises a TypeError if other can't be converted to string" do
lambda { "hello".send(@method, 123) }.should raise_error(TypeError)
lambda { "hello".send(@method, []) }.should raise_error(TypeError)
lambda { "hello".send(@method, mock('x')) }.should raise_error(TypeError)
end
ruby_version_is ""..."1.9" do
it "raises a TypeError on a frozen instance that is modified" do
a = "hello".freeze
lambda { a.send(@method, "world") }.should raise_error(TypeError)
end
it "does not raise an exception on a frozen instance when self-replacing" do
a = "hello".freeze
a.send(@method, a).should equal(a)
end
end
ruby_version_is "1.9" do
it "raises a RuntimeError on a frozen instance that is modified" do
a = "hello".freeze
lambda { a.send(@method, "world") }.should raise_error(RuntimeError)
end
# see [ruby-core:23666]
it "raises a RuntimeError on a frozen instance when self-replacing" do
a = "hello".freeze
lambda { a.send(@method, a) }.should raise_error(RuntimeError)
end
end
end
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