require File.expand_path('../../../spec_helper', __FILE__) require File.expand_path('../fixtures/classes', __FILE__) require File.expand_path('../shared/quo', __FILE__) describe "Numeric#quo" do it "returns the result of self divided by the given Integer as a Rational" do 5.quo(2).should eql(Rational(5,2)) end it "returns the result of self divided by the given Float as a Float" do 2.quo(2.5).should eql(0.8) end it "returns the result of self divided by the given Bignum as a Float" do 45.quo(bignum_value).should be_close(1.04773789668636e-08, TOLERANCE) end it "raises a ZeroDivisionError when the given Integer is 0" do lambda { 0.quo(0) }.should raise_error(ZeroDivisionError) lambda { 10.quo(0) }.should raise_error(ZeroDivisionError) lambda { -10.quo(0) }.should raise_error(ZeroDivisionError) lambda { bignum_value.quo(0) }.should raise_error(ZeroDivisionError) lambda { -bignum_value.quo(0) }.should raise_error(ZeroDivisionError) end it "calls #to_r to convert the object to a Rational" do obj = NumericSpecs::Subclass.new obj.should_receive(:to_r).and_return(Rational(1)) obj.quo(19).should == Rational(1, 19) end it "raises a TypeError of #to_r does not return a Rational" do obj = NumericSpecs::Subclass.new obj.should_receive(:to_r).and_return(1) lambda { obj.quo(19) }.should raise_error(TypeError) end it "raises a TypeError when given a non-Integer" do lambda { (obj = mock('x')).should_not_receive(:to_int) 13.quo(obj) }.should raise_error(TypeError) lambda { 13.quo("10") }.should raise_error(TypeError) lambda { 13.quo(:symbol) }.should raise_error(TypeError) end it "returns the result of calling self#/ with other" do obj = NumericSpecs::Subclass.new obj.should_receive(:to_r).and_return(19.quo(20)) obj.quo(19).should == 1.quo(20) end end