           prop4: 4
           '$prop5': 'nonExport'
           prop6: 'defaultValue'
+          prop7:719
       it 'should merge to itself as a new plain object', ->
         result = createObjectWith PM, makeArgs prop1: 121, prop2: 453, hidden:399, notExi:111
         obj = result.mergeTo()

        obj.should.be.deep.equal
          prop1: 121, prop2: 453, prop3:undefined, prop4: null, $prop5: 'nonExport'
          prop6: 'defaultValue'

      it 'should assign itself to another object', ->
        result = createObjectWith PM, makeArgs prop1: 121, prop2: 453, hidden:399, notExi:111

          prop4: null
          $prop5: 'nonExport'
          prop6: 'defaultValue'
          prop7:719
        result.isSame(obj).should.be.true

    describe '#mergeTo()', ->
