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require_relative '../../spec_helper'
describe "Integer#odd?" do
context "fixnum" do
it "returns true when self is an odd number" do
(-2).odd?.should be_false
(-1).odd?.should be_true
0.odd?.should be_false
1.odd?.should be_true
2.odd?.should be_false
bignum_value(0).odd?.should be_false
bignum_value(1).odd?.should be_true
(-bignum_value(0)).odd?.should be_false
(-bignum_value(1)).odd?.should be_true
end
end
context "bignum" do
it "returns true if self is odd and positive" do
(987279**19).odd?.should be_true
end
it "returns true if self is odd and negative" do
(-9873389**97).odd?.should be_true
end
it "returns false if self is even and positive" do
(10000000**10).odd?.should be_false
end
it "returns false if self is even and negative" do
(-1000000**100).odd?.should be_false
end
end
end
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