ruby/spec/rubyspec/core/numeric/quo_spec.rb
eregon 95e8c48dd3 Add in-tree mspec and ruby/spec
* 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
2017-05-07 12:04:49 +00:00

55 lines
1.9 KiB
Ruby

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