diff options
Diffstat (limited to 'spec/ruby/core/fixnum/uminus_spec.rb')
-rw-r--r-- | spec/ruby/core/fixnum/uminus_spec.rb | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/spec/ruby/core/fixnum/uminus_spec.rb b/spec/ruby/core/fixnum/uminus_spec.rb new file mode 100644 index 0000000000..ac676400d1 --- /dev/null +++ b/spec/ruby/core/fixnum/uminus_spec.rb @@ -0,0 +1,16 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +describe "Fixnum#-@" do + it "returns self as a negative value" do + 2.send(:-@).should == -2 + -2.should == -2 + -268435455.should == -268435455 + (--5).should == 5 + -8.send(:-@).should == 8 + end + + it "negates self at Fixnum/Bignum boundaries" do + fixnum_max.send(:-@).should == (0 - fixnum_max) + fixnum_min.send(:-@).should == (0 - fixnum_min) + end +end |