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25 lines
676 B
Ruby
25 lines
676 B
Ruby
describe :integer_next, shared: true do
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it "returns the next larger positive Integer" do
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2.send(@method).should == 3
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end
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it "returns the next larger negative Integer" do
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(-2).send(@method).should == -1
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end
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it "returns the next larger positive Integer" do
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bignum_value.send(@method).should == bignum_value(1)
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end
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it "returns the next larger negative Integer" do
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(-bignum_value(1)).send(@method).should == -bignum_value
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end
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it "overflows an Integer to an Integer" do
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fixnum_max.send(@method).should == fixnum_max + 1
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end
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it "underflows an Integer to an Integer" do
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(fixnum_min - 1).send(@method).should == fixnum_min
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end
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end
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