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* For easier modifications of ruby/spec by MRI developers. * .gitignore: track changes under spec. * spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec. These files can therefore be updated like any other file in MRI. Instructions are provided in spec/README. [Feature #13156] [ruby-core:79246] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
48 lines
1.5 KiB
Ruby
48 lines
1.5 KiB
Ruby
require File.expand_path('../../../spec_helper', __FILE__)
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describe :rational_minus_rat, shared: true do
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it "returns the result of substracting other from self as a Rational" do
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(Rational(3, 4) - Rational(0, 1)).should eql(Rational(3, 4))
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(Rational(3, 4) - Rational(1, 4)).should eql(Rational(1, 2))
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(Rational(3, 4) - Rational(2, 1)).should eql(Rational(-5, 4))
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end
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end
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describe :rational_minus_int, shared: true do
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it "returns the result of substracting other from self as a Rational" do
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(Rational(3, 4) - 1).should eql(Rational(-1, 4))
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(Rational(3, 4) - 2).should eql(Rational(-5, 4))
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end
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end
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describe :rational_minus_float, shared: true do
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it "returns the result of substracting other from self as a Float" do
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(Rational(3, 4) - 0.2).should eql(0.55)
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(Rational(3, 4) - 2.5).should eql(-1.75)
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end
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end
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describe :rational_minus, 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 - 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 - obj).should == :result
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end
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end
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