diff options
Diffstat (limited to 'spec/ruby/core/integer/complement_spec.rb')
| -rw-r--r-- | spec/ruby/core/integer/complement_spec.rb | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/spec/ruby/core/integer/complement_spec.rb b/spec/ruby/core/integer/complement_spec.rb new file mode 100644 index 0000000000..faef88ae21 --- /dev/null +++ b/spec/ruby/core/integer/complement_spec.rb @@ -0,0 +1,20 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +describe "Integer#~" do + context "fixnum" do + it "returns self with each bit flipped" do + (~0).should == -1 + (~1221).should == -1222 + (~-2).should == 1 + (~-599).should == 598 + end + end + + context "bignum" do + it "returns self with each bit flipped" do + (~bignum_value(48)).should == -9223372036854775857 + (~(-bignum_value(21))).should == 9223372036854775828 + (~bignum_value(1)).should == -9223372036854775810 + end + end +end |