Compare scala.xml.Elem object in unit test

Question

I have two scala.xml.Elem objects (actual, expected). I am using JUnit 4, but have also included XMLUnit 1.3.

Is there any easy way to compare the two objec

Answer 1

Use the version of assertTrue that allows passing custom messages

public static void assertTrue(java.lang.String message,
                              boolean condition)

and (for example) diff to produce the string with the descendand nodes that aren't equal

scala> val xml1 = johnsmith
xml1: scala.xml.Elem = johnsmith

scala> val xml2 = janesmith
xml2: scala.xml.Elem = janesmith

scala> assert(xml1 == xml2, xml1.child diff xml2.child mkString(", "))
java.lang.AssertionError: assertion failed: john
        at scala.Predef$.assert(Predef.scala:91)
        at .(:8)
        at .()