diff --git a/test/python/WMCore_t/MicroService_t/MSTransferor_t/Workflow_t.py b/test/python/WMCore_t/MicroService_t/MSTransferor_t/Workflow_t.py
index d6d1ae68987..4c3c3f4ccbc 100644
--- a/test/python/WMCore_t/MicroService_t/MSTransferor_t/Workflow_t.py
+++ b/test/python/WMCore_t/MicroService_t/MSTransferor_t/Workflow_t.py
@@ -265,18 +265,16 @@ def testGetChunkBlocks1(self):
         wflow.setPrimaryBlocks(primDict)
         blockChunks, sizeChunks = wflow.getChunkBlocks(1)
         self.assertEqual(len(blockChunks), 1)
-        self.assertItemsEqual(blockChunks[0], {"block_A"})
-        self.assertEqual(len(sizeChunks), 1)
-        self.assertEqual(sizeChunks[0], 1)
+        self.assertItemsEqual(blockChunks, {"block_A"})
+        self.assertEqual(sizeChunks, 1)
 
         # now set a parent
         wflow.setParentDataset("Parent_dataset_XXX")
         wflow.setParentBlocks(parentDict)
         blockChunks, sizeChunks = wflow.getChunkBlocks(1)
-        self.assertEqual(len(blockChunks), 1)
-        self.assertItemsEqual(blockChunks[0], {"block_A", "parent_A", "parent_B"})
-        self.assertEqual(len(sizeChunks), 1)
-        self.assertEqual(sizeChunks[0], 20)
+        self.assertEqual(len(blockChunks), 3)
+        self.assertItemsEqual(blockChunks, {"block_A", "parent_A", "parent_B"})
+        self.assertEqual(sizeChunks, 20)
 
     def testGetChunkBlocks2(self):
         """
@@ -345,10 +343,9 @@ def testGetChunkBlocks3(self):
         wflow.setChildToParentBlocks(parentage)
 
         blockChunks, sizeChunks = wflow.getChunkBlocks(1)
-        self.assertEqual(len(blockChunks), 1)
-        self.assertItemsEqual(blockChunks[0], {"block_A", "block_B", "parent_A", "parent_B", "parent_C"})
-        self.assertEqual(len(sizeChunks), 1)
-        self.assertEqual(sizeChunks[0], 39)
+        self.assertEqual(len(blockChunks), 5)
+        self.assertItemsEqual(blockChunks, {"block_A", "block_B", "parent_A", "parent_B", "parent_C"})
+        self.assertEqual(sizeChunks, 39)
 
         blockChunks, sizeChunks = wflow.getChunkBlocks(2)
         self.assertEqual(len(blockChunks), 2)