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401b64c4e8
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62656 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
71 lines
2.4 KiB
Ruby
71 lines
2.4 KiB
Ruby
require_relative '../../spec_helper'
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describe :rational_divide_rat, shared: true do
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it "returns self divided by other as a Rational" do
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Rational(3, 4).send(@method, Rational(3, 4)).should eql(Rational(1, 1))
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Rational(2, 4).send(@method, Rational(1, 4)).should eql(Rational(2, 1))
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Rational(2, 4).send(@method, 2).should == Rational(1, 4)
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Rational(6, 7).send(@method, -2).should == Rational(-3, 7)
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end
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it "raises a ZeroDivisionError when passed a Rational with a numerator of 0" do
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lambda { Rational(3, 4).send(@method, Rational(0, 1)) }.should raise_error(ZeroDivisionError)
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end
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end
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describe :rational_divide_int, shared: true do
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it "returns self divided by other as a Rational" do
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Rational(3, 4).send(@method, 2).should eql(Rational(3, 8))
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Rational(2, 4).send(@method, 2).should eql(Rational(1, 4))
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Rational(6, 7).send(@method, -2).should eql(Rational(-3, 7))
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end
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it "raises a ZeroDivisionError when passed 0" do
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lambda { Rational(3, 4).send(@method, 0) }.should raise_error(ZeroDivisionError)
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end
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end
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describe :rational_divide_float, shared: true do
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it "returns self divided by other as a Float" do
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Rational(3, 4).send(@method, 0.75).should eql(1.0)
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Rational(3, 4).send(@method, 0.25).should eql(3.0)
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Rational(3, 4).send(@method, 0.3).should eql(2.5)
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Rational(-3, 4).send(@method, 0.3).should eql(-2.5)
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Rational(3, -4).send(@method, 0.3).should eql(-2.5)
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Rational(3, 4).send(@method, -0.3).should eql(-2.5)
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end
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it "returns infinity when passed 0" do
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Rational(3, 4).send(@method, 0.0).infinite?.should eql(1)
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Rational(-3, -4).send(@method, 0.0).infinite?.should eql(1)
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Rational(-3, 4).send(@method, 0.0).infinite?.should eql(-1)
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Rational(3, -4).send(@method, 0.0).infinite?.should eql(-1)
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end
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end
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describe :rational_divide, shared: true do
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it "calls #coerce on the passed argument with self" do
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rational = Rational(3, 4)
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obj = mock("Object")
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obj.should_receive(:coerce).with(rational).and_return([1, 2])
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rational.send(@method, obj)
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end
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it "calls #/ on the coerced Rational with the coerced Object" do
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rational = Rational(3, 4)
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coerced_rational = mock("Coerced Rational")
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coerced_rational.should_receive(:/).and_return(:result)
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coerced_obj = mock("Coerced Object")
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obj = mock("Object")
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obj.should_receive(:coerce).and_return([coerced_rational, coerced_obj])
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rational.send(@method, obj).should == :result
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end
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end
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