anchor.diff:        }
       '';
   
  -    dash = writeDash "test_writers_dash" ''
  +    dash = writeDash "test-writers-dash" ''
        test '~' = '~' && echo 'success'
       '';
   
  -    haskell = writeHaskell "test_writers_haskell" { libraries = [ haskellPackages.acme-default ]; } ''
  +    haskell = writeHaskell "test-writers-haskell" { libraries = [ haskellPackages.acme-default ]; } ''
         import Data.Default
   
         int :: Int
  
positive.code:       }
      '';
  
      perl = writePerlBin "test_writers_perl_bin" { libraries = [ perlPackages.boolean ]; } ''
        use boolean;
        print "success\n" if true;
      '';
  
      python2 = writePython2Bin "test_writers_python2_bin" { libraries = [ python2Packages.enum ]; } ''
        from enum import Enum
  
  
  
negative.code:       }
      '';
  
      perl = writePerl "test-writers-perl" { libraries = [ perlPackages.boolean ]; } ''
        use boolean;
        print "success\n" if true;
      '';
  
      python2 = writePython2 "test-writers-python2" { libraries = [ python2Packages.enum ]; } ''
        from enum import Enum
  
  
  