diff options
Diffstat (limited to 'spec/ruby/core/numeric/shared/arg.rb')
-rw-r--r-- | spec/ruby/core/numeric/shared/arg.rb | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/spec/ruby/core/numeric/shared/arg.rb b/spec/ruby/core/numeric/shared/arg.rb new file mode 100644 index 0000000000..c8e7ad8333 --- /dev/null +++ b/spec/ruby/core/numeric/shared/arg.rb @@ -0,0 +1,38 @@ +require_relative '../../../spec_helper' + +describe :numeric_arg, shared: true do + before :each do + @numbers = [ + 20, + Rational(3, 4), + bignum_value, + infinity_value + ] + end + + it "returns 0 if positive" do + @numbers.each do |number| + number.send(@method).should == 0 + end + end + + it "returns Pi if negative" do + @numbers.each do |number| + (0-number).send(@method).should == Math::PI + end + end + + describe "with a Numeric subclass" do + it "returns 0 if self#<(0) returns false" do + numeric = mock_numeric('positive') + numeric.should_receive(:<).with(0).and_return(false) + numeric.send(@method).should == 0 + end + + it "returns Pi if self#<(0) returns true" do + numeric = mock_numeric('positive') + numeric.should_receive(:<).with(0).and_return(true) + numeric.send(@method).should == Math::PI + end + end +end |