[Polish Unittest] Polish test_zero_dim_tensor.py (#54215)

* [Polish Unittest] Polish test_zero_dim_tensor.py

* Polish test_zero_dim_tensor.py

test/legacy_test/test_zero_dim_tensor.py

@@ -1599,7 +1599,7 @@ class TestSundryAPI(unittest.TestCase):
 
         x1 = paddle.uniform([], None, -10, 10)
         x1.stop_gradient = False
-        out1 = paddle.clip(x1, paddle.full([], 5.0), paddle.full([], 5.0))
+        out1 = paddle.clip(x1, paddle.full([], -5.0), paddle.full([], 5.0))
         out1.retain_grads()
         out1.backward()
         self.assertEqual(out1.shape, [])
@@ -3723,7 +3723,7 @@ class TestSundryAPIStatic(unittest.TestCase):
 
         x1 = paddle.uniform([], None, -10, 10)
         x1.stop_gradient = False
-        out1 = paddle.clip(x1, paddle.full([], 5.0), paddle.full([], 5.0))
+        out1 = paddle.clip(x1, paddle.full([], -5.0), paddle.full([], 5.0))
         paddle.static.append_backward(out1)
 
         prog = paddle.static.default_main_program()