diff --git a/tests/core/dataset/test_dataset.py b/tests/core/dataset/test_dataset.py
index 8ff64d04..a2540ecf 100644
--- a/tests/core/dataset/test_dataset.py
+++ b/tests/core/dataset/test_dataset.py
@@ -370,29 +370,11 @@ class TestDataSetMethods:
         assert os.path.exists("1.csv") == True
         os.remove("1.csv")
 
-    def test_add_collate_fn(self):
-        ds = DataSet({'x': [1, 2, 3], 'y': [4, 5, 6]})
-
-        def collate_fn(item):
-            return item
-
-        ds.add_collate_fn(collate_fn)
-
-    def test_get_collator(self):
-        from typing import Callable
-        ds = DataSet({'x': [1, 2, 3], 'y': [4, 5, 6]})
-        collate_fn = ds.get_collator()
-        assert isinstance(collate_fn, Callable) == True
-
     def test_add_seq_len(self):
         ds = DataSet({'x': [[1, 2], [2, 3, 4], [3]], 'y': [4, 5, 6]})
         ds.add_seq_len('x')
         print(ds)
 
-    def test_set_target(self):
-        ds = DataSet({'x': [[1, 2], [2, 3, 4], [3]], 'y': [4, 5, 6]})
-        ds.set_target('x')
-
 
 class TestFieldArrayInit:
     """
diff --git a/tests/core/drivers/paddle_driver/test_utils.py b/tests/core/drivers/paddle_driver/test_utils.py
index 3b0fb9e0..66dc23c4 100644
--- a/tests/core/drivers/paddle_driver/test_utils.py
+++ b/tests/core/drivers/paddle_driver/test_utils.py
@@ -1,8 +1,6 @@
-import os
 import pytest
 
 from fastNLP.core.drivers.paddle_driver.utils import (
-    get_device_from_visible,
     replace_batch_sampler,
     replace_sampler,
 )
@@ -14,24 +12,6 @@ if _NEED_IMPORT_PADDLE:
 
 from tests.helpers.datasets.paddle_data import PaddleNormalDataset
 
-@pytest.mark.parametrize(
-    ("user_visible_devices, cuda_visible_devices, device, output_type, correct"),
-    (
-        ("0,1,2,3,4,5,6,7", "0", "cpu", str, "cpu"),
-        ("0,1,2,3,4,5,6,7", "0", "cpu", int, "cpu"),
-        ("0,1,2,3,4,5,6,7", "3,4,5", "gpu:4", int, 1),
-        ("0,1,2,3,4,5,6,7", "3,4,5", "gpu:5", str, "gpu:2"),
-        ("3,4,5,6", "3,5", 0, int, 0),
-        ("3,6,7,8", "6,7,8", "gpu:2", str, "gpu:1"),
-    )
-)
-@pytest.mark.paddle
-def test_get_device_from_visible_str(user_visible_devices, cuda_visible_devices, device, output_type, correct):
-    os.environ["CUDA_VISIBLE_DEVICES"] = cuda_visible_devices
-    os.environ["USER_CUDA_VISIBLE_DEVICES"] = user_visible_devices
-    res = get_device_from_visible(device, output_type)
-    assert res == correct
-
 @pytest.mark.paddle
 def test_replace_batch_sampler():
     dataset = PaddleNormalDataset(10)