       conditions.if_exists(
         if_exists: __dirname
         () -> should.be.ok false
-        next
+        -> next()
       )
     it 'should skip if file does not exists', (next) ->
       conditions.if_exists(

      conditions.not_if_exists(
        not_if_exists: './oh_no'
        () -> should.be.ok false
        next
      )
    it 'should succeed if no file exists', (next) ->
      conditions.not_if_exists(
        not_if_exists: ['./oh_no', './eh_no']
        () -> should.be.ok false
        next
      )
    it 'should skip if at least one file exists', (next) ->
      conditions.not_if_exists(

      conditions.should_exist(
        should_exist: __filename
        () -> should.be.ok false
        -> next()
      )
    it 'should failed if file does not exist', (next) ->
      conditions.should_exist(
