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401b64c4e8
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62656 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
34 lines
681 B
Ruby
34 lines
681 B
Ruby
require_relative '../../spec_helper'
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describe "Numeric#abs2" do
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before :each do
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@numbers = [
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0,
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0.0,
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1,
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20,
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bignum_value,
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278202.292871,
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72829,
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3.333333333333,
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0.1,
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infinity_value
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].map { |n| [-n, n] }.flatten
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end
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it "returns the square of the absolute value of self" do
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@numbers.each do |number|
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number.abs2.should eql(number.abs ** 2)
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end
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end
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it "calls #* on self" do
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number = mock_numeric('numeric')
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number.should_receive(:*).and_return(:result)
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number.abs2.should == :result
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end
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it "returns NaN when self is NaN" do
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nan_value.abs2.nan?.should be_true
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end
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end
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