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Diffstat (limited to 'spec/rubyspec/shared/rational/plus.rb')
-rw-r--r-- | spec/rubyspec/shared/rational/plus.rb | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/spec/rubyspec/shared/rational/plus.rb b/spec/rubyspec/shared/rational/plus.rb new file mode 100644 index 0000000000..d078a41425 --- /dev/null +++ b/spec/rubyspec/shared/rational/plus.rb @@ -0,0 +1,48 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +describe :rational_plus_rat, shared: true do + it "returns the result of substracting other from self as a Rational" do + (Rational(3, 4) + Rational(0, 1)).should eql(Rational(3, 4)) + (Rational(3, 4) + Rational(1, 4)).should eql(Rational(1, 1)) + + (Rational(3, 4) + Rational(2, 1)).should eql(Rational(11, 4)) + end +end + +describe :rational_plus_int, shared: true do + it "returns the result of substracting other from self as a Rational" do + (Rational(3, 4) + 1).should eql(Rational(7, 4)) + (Rational(3, 4) + 2).should eql(Rational(11, 4)) + end +end + +describe :rational_plus_float, shared: true do + it "returns the result of substracting other from self as a Float" do + (Rational(3, 4) + 0.2).should eql(0.95) + (Rational(3, 4) + 2.5).should eql(3.25) + end +end + +describe :rational_plus, shared: true do + it "calls #coerce on the passed argument with self" do + rational = Rational(3, 4) + obj = mock("Object") + obj.should_receive(:coerce).with(rational).and_return([1, 2]) + + rational + obj + end + + it "calls #+ on the coerced Rational with the coerced Object" do + rational = Rational(3, 4) + + coerced_rational = mock("Coerced Rational") + coerced_rational.should_receive(:+).and_return(:result) + + coerced_obj = mock("Coerced Object") + + obj = mock("Object") + obj.should_receive(:coerce).and_return([coerced_rational, coerced_obj]) + + (rational + obj).should == :result + end +end |