From 4e64f6f9c7e0dbbd08e81d8f69b6aefb95d1c23b Mon Sep 17 00:00:00 2001
From: nyx-c-language <nyxchaoji123@163.com>
Date: Sun, 24 Aug 2025 21:36:42 +0800
Subject: [PATCH 1/3] =?UTF-8?q?=E5=8A=9F=E8=83=BD=E6=A8=A1=E5=9D=97=20CUDA?=
 =?UTF-8?q?Platform=E3=80=81CPUPlatform=20=E5=8D=95=E6=B5=8B=E8=A1=A5?=
 =?UTF-8?q?=E5=85=85?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 tests/platforms/test_platforms.py | 86 +++++++++++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 tests/platforms/test_platforms.py

diff --git a/tests/platforms/test_platforms.py b/tests/platforms/test_platforms.py
new file mode 100644
index 00000000000..1d450b9f92b
--- /dev/null
+++ b/tests/platforms/test_platforms.py
@@ -0,0 +1,86 @@
+"""
+# Copyright (c) 2025 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""
+
+import unittest
+from unittest.mock import patch
+
+from fastdeploy.platforms.base import _Backend
+from fastdeploy.platforms.cpu import CPUPlatform
+from fastdeploy.platforms.cuda import CUDAPlatform
+
+
+class TestCPUPlatform(unittest.TestCase):
+    def setUp(self):
+        self.platform = CPUPlatform()
+
+    @patch("paddle.device.get_device", return_value="cpu")
+    def test_is_cpu_and_available(self, mock_get_device):
+        """
+        Check hardware type (CPU) and availability
+        """
+        self.assertTrue(self.platform.is_cpu())
+        self.assertTrue(self.platform.available())
+
+    def test_attention_backend(self):
+        """CPUPlatform attention_backend should return empty string"""
+        self.assertEqual(self.platform.get_attention_backend_cls(None), "")
+
+
+class TestCUDAPlatform(unittest.TestCase):
+    def setUp(self):
+        self.platform = CUDAPlatform()
+
+    @patch("paddle.is_compiled_with_cuda", return_value=True)
+    @patch("paddle.device.get_device", return_value="cuda")
+    @patch("paddle.static.cuda_places", return_value=[0])
+    def test_is_cuda(self, mock_get_device, mock_is_cuda, mock_cuda_places):
+        """
+        Check hardware type (CUDA) and availability
+        """
+        self.assertTrue(self.platform.is_cuda())
+        self.assertTrue(self.platform.available())
+
+    def test_attention_backend_valid(self):
+        """
+        CUDAPlatform should return correct backend class name for valid backends
+        """
+        self.assertIn(
+            "PaddleNativeAttnBackend",
+            self.platform.get_attention_backend_cls(_Backend.NATIVE_ATTN),
+        )
+        self.assertIn(
+            "AppendAttentionBackend",
+            self.platform.get_attention_backend_cls(_Backend.APPEND_ATTN),
+        )
+        self.assertIn(
+            "MLAAttentionBackend",
+            self.platform.get_attention_backend_cls(_Backend.MLA_ATTN),
+        )
+        self.assertIn(
+            "FlashAttentionBackend",
+            self.platform.get_attention_backend_cls(_Backend.FLASH_ATTN),
+        )
+
+    def test_attention_backend_invalid(self):
+        """
+        CUDAPlatform should raise ValueError for invalid backend
+        """
+        with self.assertRaises(ValueError):
+            self.platform.get_attention_backend_cls("INVALID_BACKEND")
+
+
+if __name__ == "__main__":
+    unittest.main()

From c1cac6f0ea57727b257e8985140f3fdfca73aea4 Mon Sep 17 00:00:00 2001
From: nyx-c-language <nyxchaoji123@163.com>
Date: Sun, 24 Aug 2025 21:41:36 +0800
Subject: [PATCH 2/3] update the "is_cuda" to "is_cuda_and_available"

---
 tests/platforms/test_platforms.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tests/platforms/test_platforms.py b/tests/platforms/test_platforms.py
index 1d450b9f92b..1b2a757f0d9 100644
--- a/tests/platforms/test_platforms.py
+++ b/tests/platforms/test_platforms.py
@@ -46,7 +46,9 @@ def setUp(self):
     @patch("paddle.is_compiled_with_cuda", return_value=True)
     @patch("paddle.device.get_device", return_value="cuda")
     @patch("paddle.static.cuda_places", return_value=[0])
-    def test_is_cuda(self, mock_get_device, mock_is_cuda, mock_cuda_places):
+    def test_is_cuda_and_available(
+        self, mock_get_device, mock_is_cuda, mock_cuda_places
+    ):
         """
         Check hardware type (CUDA) and availability
         """

From 9bf170a9d88f6ed361edfc5bdfc2299f8069c461 Mon Sep 17 00:00:00 2001
From: nyx-c-language <nyxchaoji123@163.com>
Date: Tue, 26 Aug 2025 17:49:12 +0800
Subject: [PATCH 3/3] fix pre-commit

---
 tests/platforms/test_platforms.py | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/tests/platforms/test_platforms.py b/tests/platforms/test_platforms.py
index 1b2a757f0d9..70481af7f54 100644
--- a/tests/platforms/test_platforms.py
+++ b/tests/platforms/test_platforms.py
@@ -46,9 +46,7 @@ def setUp(self):
     @patch("paddle.is_compiled_with_cuda", return_value=True)
     @patch("paddle.device.get_device", return_value="cuda")
     @patch("paddle.static.cuda_places", return_value=[0])
-    def test_is_cuda_and_available(
-        self, mock_get_device, mock_is_cuda, mock_cuda_places
-    ):
+    def test_is_cuda_and_available(self, mock_get_device, mock_is_cuda, mock_cuda_places):
         """
         Check hardware type (CUDA) and availability
         """