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require_relative '../../spec_helper'
require_relative 'shared/arithmetic_coerce'
describe "Integer#+" do
ruby_version_is "2.4"..."2.5" do
it_behaves_like :integer_arithmetic_coerce_rescue, :+
end
ruby_version_is "2.5" do
it_behaves_like :integer_arithmetic_coerce_not_rescue, :+
end
context "fixnum" do
it "returns self plus the given Integer" do
(491 + 2).should == 493
(90210 + 10).should == 90220
(9 + bignum_value).should == 9223372036854775817
(1001 + 5.219).should == 1006.219
end
it "raises a TypeError when given a non-Integer" do
lambda {
(obj = mock('10')).should_receive(:to_int).any_number_of_times.and_return(10)
13 + obj
}.should raise_error(TypeError)
lambda { 13 + "10" }.should raise_error(TypeError)
lambda { 13 + :symbol }.should raise_error(TypeError)
end
end
context "bignum" do
before :each do
@bignum = bignum_value(76)
end
it "returns self plus the given Integer" do
(@bignum + 4).should == 9223372036854775888
(@bignum + 4.2).should be_close(9223372036854775888.2, TOLERANCE)
(@bignum + bignum_value(3)).should == 18446744073709551695
end
it "raises a TypeError when given a non-Integer" do
lambda { @bignum + mock('10') }.should raise_error(TypeError)
lambda { @bignum + "10" }.should raise_error(TypeError)
lambda { @bignum + :symbol}.should raise_error(TypeError)
end
end
end
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