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describe :string_dedup, shared: true do
it 'returns self if the String is frozen' do
input = 'foo'.freeze
output = input.send(@method)
output.should equal(input)
output.should.frozen?
end
it 'returns a frozen copy if the String is not frozen' do
input = 'foo'
output = input.send(@method)
output.should.frozen?
output.should_not equal(input)
output.should == 'foo'
end
it "returns the same object for equal unfrozen strings" do
origin = "this is a string"
dynamic = %w(this is a string).join(' ')
origin.should_not equal(dynamic)
origin.send(@method).should equal(dynamic.send(@method))
end
it "returns the same object when it's called on the same String literal" do
"unfrozen string".send(@method).should equal("unfrozen string".send(@method))
"unfrozen string".send(@method).should_not equal("another unfrozen string".send(@method))
end
it "deduplicates frozen strings" do
dynamic = %w(this string is frozen).join(' ').freeze
dynamic.should_not equal("this string is frozen".freeze)
dynamic.send(@method).should equal("this string is frozen".freeze)
dynamic.send(@method).should equal("this string is frozen".send(@method).freeze)
end
ruby_version_is "3.0" do
it "interns the provided string if it is frozen" do
dynamic = "this string is unique and frozen #{rand}".freeze
dynamic.send(@method).should equal(dynamic)
end
end
end
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