fixed tests

Author: ScrapCodes

python/pyspark/rdd.py

@@ -764,7 +764,7 @@ def top(self, num):
         >>> sc.parallelize([10, 4, 2, 12, 3]).top(1)
         [12]
         >>> sc.parallelize([2, 3, 4, 5, 6], 2).cache().top(2)
-        [5, 6]
+        [6, 5]
         """
         def topIterator(iterator):
             q = []