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21 lines
546 B
Ruby
21 lines
546 B
Ruby
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require File.expand_path('../../../spec_helper', __FILE__)
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describe "Integer#even?" do
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it "returns true for a Fixnum when it is an even number" do
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(-2).even?.should be_true
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(-1).even?.should be_false
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0.even?.should be_true
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1.even?.should be_false
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2.even?.should be_true
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end
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it "returns true for a Bignum when it is an even number" do
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bignum_value(0).even?.should be_true
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bignum_value(1).even?.should be_false
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(-bignum_value(0)).even?.should be_true
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(-bignum_value(1)).even?.should be_false
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end
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end
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