From 31ea0c125afbab71a47ff2014f79efbcd28fbca5 Mon Sep 17 00:00:00 2001
From: liyulingyue <852433440@qq.com>
Date: Mon, 23 Jan 2023 08:08:30 +0800
Subject: [PATCH] fix the NullPointerError of matrix_power

---
 python/paddle/fluid/tests/unittests/test_matrix_power_op.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/python/paddle/fluid/tests/unittests/test_matrix_power_op.py b/python/paddle/fluid/tests/unittests/test_matrix_power_op.py
index 29f82b0350d651..9f596d79beee0e 100644
--- a/python/paddle/fluid/tests/unittests/test_matrix_power_op.py
+++ b/python/paddle/fluid/tests/unittests/test_matrix_power_op.py
@@ -312,6 +312,12 @@ def test_errors(self):
         input = fluid.data(name="input_3", shape=[4, 5], dtype="float32")
         self.assertRaises(ValueError, paddle.linalg.matrix_power, input, 2)
 
+        # The size of input should not be 0
+        input = fluid.data(name="input_5", shape=[0, 0], dtype="float32")
+        self.assertRaises(
+            ValueError, paddle.linalg.matrix_power, input, -956301312
+        )
+
 
 class TestMatrixPowerSingularAPI(unittest.TestCase):
     def setUp(self):