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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62656 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
38 lines
930 B
Ruby
38 lines
930 B
Ruby
require_relative '../../spec_helper'
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describe "Integer#odd?" do
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context "fixnum" do
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it "returns true when self is an odd number" do
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(-2).odd?.should be_false
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(-1).odd?.should be_true
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0.odd?.should be_false
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1.odd?.should be_true
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2.odd?.should be_false
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bignum_value(0).odd?.should be_false
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bignum_value(1).odd?.should be_true
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(-bignum_value(0)).odd?.should be_false
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(-bignum_value(1)).odd?.should be_true
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end
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end
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context "bignum" do
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it "returns true if self is odd and positive" do
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(987279**19).odd?.should be_true
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end
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it "returns true if self is odd and negative" do
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(-9873389**97).odd?.should be_true
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end
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it "returns false if self is even and positive" do
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(10000000**10).odd?.should be_false
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end
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it "returns false if self is even and negative" do
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(-1000000**100).odd?.should be_false
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end
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end
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end
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