diff options
Diffstat (limited to 'spec/ruby/core/numeric/quo_spec.rb')
-rw-r--r-- | spec/ruby/core/numeric/quo_spec.rb | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/spec/ruby/core/numeric/quo_spec.rb b/spec/ruby/core/numeric/quo_spec.rb new file mode 100644 index 0000000000..24c752aac1 --- /dev/null +++ b/spec/ruby/core/numeric/quo_spec.rb @@ -0,0 +1,55 @@ +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 |