E.g.: For List/Array: Considered equal if lengths are equal and each position contains an item which matches expected by comparing fields For Set: Considered equal if sizes are equal and each item in actual has an item which matches in expected by comparing fields For Map: considered equal if each entry in actual has a match in expected by comparing fields of

key

and

value

a1.b.c.d.forAll { it shouldEqualComparingfields a2.b.c.d }

(and then if there's other properties on other levels we have to check them by hand)