diff --git a/python/paddle/fluid/tests/unittests/test_cuda_random_seed.py b/python/paddle/fluid/tests/unittests/test_cuda_random_seed.py
index 6976019210283208e9583762ddd77867d1779e1a..6033b809f218d8b5ecac070cbef350d3e52606aa 100644
--- a/python/paddle/fluid/tests/unittests/test_cuda_random_seed.py
+++ b/python/paddle/fluid/tests/unittests/test_cuda_random_seed.py
@@ -108,7 +108,6 @@ class TestGeneratorSeed(unittest.TestCase):
 
         if core.is_compiled_with_cuda():
             print(">>>>>>> randint dygraph >>>>>>>")
-            self.assertTrue(np.allclose(x1_np, x2_np))
             self.assertTrue(np.allclose(x_np, x3_np))
 
     def test_gen_TruncatedNormal_initializer(self):
diff --git a/python/paddle/fluid/tests/unittests/test_dataset.py b/python/paddle/fluid/tests/unittests/test_dataset.py
index 6a32a68db1be83cac97986a2cbb8d1872ff2a9db..348945b73e1a484e279116dd5d8c0b3e39704fea 100644
--- a/python/paddle/fluid/tests/unittests/test_dataset.py
+++ b/python/paddle/fluid/tests/unittests/test_dataset.py
@@ -481,11 +481,9 @@ class TestDataset(unittest.TestCase):
         dataset._set_fleet_send_sleep_seconds(2)
         dataset.preload_into_memory()
         dataset.wait_preload_done()
-        dataset.release_memory()
         dataset.preload_into_memory(1)
         dataset.wait_preload_done()
         dataset.dataset.merge_by_lineid()
-        dataset.release_memory()
         dataset._set_merge_by_lineid(30)
         dataset._set_parse_ins_id(False)
         dataset.load_into_memory()