diff options
Diffstat (limited to 'spec/ruby/core/string/uminus_spec.rb')
-rw-r--r-- | spec/ruby/core/string/uminus_spec.rb | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/spec/ruby/core/string/uminus_spec.rb b/spec/ruby/core/string/uminus_spec.rb new file mode 100644 index 0000000000..53e73b7e67 --- /dev/null +++ b/spec/ruby/core/string/uminus_spec.rb @@ -0,0 +1,21 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +ruby_version_is "2.3" do + describe 'String#-@' do + it 'returns self if the String is frozen' do + input = 'foo'.freeze + output = -input + + output.equal?(input).should == true + output.frozen?.should == true + end + + it 'returns a frozen copy if the String is not frozen' do + input = 'foo' + output = -input + + output.frozen?.should == true + output.should == 'foo' + end + end +end |