Case class equals with list of byte array

Question

I am trying to use the should matchers on a case class

case class ListOfByteArrayCaseConfig(

  @BeanProperty 
  permissions: java.util.List[Array[Byte]]

)

With the following test case

val orig = ListOfByteArrayCaseConfig(List(Array[Byte](10, 20, 30)))
val orig2 = ListOfByteArrayCaseConfig(List(Array[Byte](10, 20, 30)))

orig2 should be === orig

Obviously this would fail because the two byte arrays are not equal reference wise. What I want to do is somehow make this work without changing the test case code and still keeping the case class.

Is it even possible? (like adding a custom equals method to the case class?)

Answer 1

I found the solution. Apparently I can override the equals method in a case class

Scala: Ignore case class field for equals/hascode?

Though it gets rid of the reason for using case classes in the first place which is to simplify data objects.

case class ListOfByteArrayCaseConfig(

  @BeanProperty 
  permissions: java.util.List[Array[Byte]]

) {

  override def equals(arg: Any): Boolean = {

    val obj = arg.asInstanceOf[ListOfByteArrayCaseConfig]
    var i: Int = 0
    for (i <- 0 until permissions.size()) {
      if (!util.Arrays.equals(permissions.get(i), obj.permissions.get(i))) {
        return false
      }
    }
    return true
  }
}