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require File.expand_path('../../../spec_helper', __FILE__)
describe "Bignum#-@" do
it "returns self as a negative value" do
bignum_value.send(:-@).should == -9223372036854775808
(-bignum_value).send(:-@).should == 9223372036854775808
bignum_value(921).send(:-@).should == -9223372036854776729
(-bignum_value(921).send(:-@)).should == 9223372036854776729
end
end
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