diff options
Diffstat (limited to 'spec/ruby/core/rational/to_r_spec.rb')
-rw-r--r-- | spec/ruby/core/rational/to_r_spec.rb | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/spec/ruby/core/rational/to_r_spec.rb b/spec/ruby/core/rational/to_r_spec.rb new file mode 100644 index 0000000000..6e44cf1b23 --- /dev/null +++ b/spec/ruby/core/rational/to_r_spec.rb @@ -0,0 +1,20 @@ +require File.expand_path('../../../shared/rational/to_r', __FILE__) + +describe "Rational#to_r" do + it_behaves_like(:rational_to_r, :to_r) + + it "raises TypeError trying to convert BasicObject" do + obj = BasicObject.new + lambda { Rational(obj) }.should raise_error(TypeError) + end + + it "works when a BasicObject has to_r" do + obj = BasicObject.new; def obj.to_r; 1 / 2.to_r end + Rational(obj).should == Rational('1/2') + end + + it "fails when a BasicObject's to_r does not return a Rational" do + obj = BasicObject.new; def obj.to_r; 1 end + lambda { Rational(obj) }.should raise_error(TypeError) + end +end |