class TestCase1refactored {
  
  def doFoo(bar: Bar): Bar = {
    val result = new Bar(bar.i + 10)
    return result
  }
  
}

def testCase1refactored() {
    val bar = new Bar(0)
    
    val testedObject = new TestSubject1refactored()
    val result = testedObject.doFoo(bar)
    
    if(result.i == 10){
      println("true")
    } else {
      println("false")
    }
  }