mirror of
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97 lines
4.0 KiB
Python
97 lines
4.0 KiB
Python
# Copyright (c) 2025 PaddlePaddle Authors. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import ctypes
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import unittest
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from unittest.mock import MagicMock, patch
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from fastdeploy.distributed.custom_all_reduce import cuda_wrapper
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class TestCudaRTLibrary(unittest.TestCase):
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@patch("fastdeploy.distributed.custom_all_reduce.cuda_wrapper.find_loaded_library")
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@patch("ctypes.CDLL")
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def test_basic_init_and_function_calls(self, mock_cdll, mock_find_lib):
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"""Test initialization and basic function calls of CudaRTLibrary"""
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mock_find_lib.return_value = "/usr/local/cuda/lib64/libcudart.so"
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mock_lib = MagicMock()
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mock_cdll.return_value = mock_lib
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# Mock all exported functions to return success (0)
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for func in cuda_wrapper.CudaRTLibrary.exported_functions:
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setattr(mock_lib, func.name, MagicMock(return_value=0))
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mock_lib.cudaGetErrorString.return_value = b"no error"
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lib = cuda_wrapper.CudaRTLibrary()
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ptr = lib.cudaMalloc(64)
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lib.cudaMemset(ptr, 1, 64)
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lib.cudaMemcpy(ptr, ptr, 64)
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lib.cudaFree(ptr)
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lib.cudaSetDevice(0)
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lib.cudaDeviceSynchronize()
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lib.cudaDeviceReset()
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handle = lib.cudaIpcGetMemHandle(ptr)
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lib.cudaIpcOpenMemHandle(handle)
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lib.cudaStreamIsCapturing(ctypes.c_void_p(0))
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self.assertTrue(mock_lib.cudaMalloc.called)
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self.assertTrue(mock_lib.cudaFree.called)
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@patch("builtins.open", create=True)
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def test_find_loaded_library_found(self, mock_open):
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"""Test find_loaded_library returns correct path when library is found"""
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# Simulate maps file containing libcudart path
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mock_open.return_value.__enter__.return_value = ["7f... /usr/local/cuda/lib64/libcudart.so.11.0\n"]
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result = cuda_wrapper.find_loaded_library("libcudart")
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self.assertIn("libcudart.so.11.0", result)
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def test_find_loaded_library_not_found(self):
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"""Test find_loaded_library returns None when library is not found"""
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with patch("builtins.open", unittest.mock.mock_open(read_data="")):
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path = cuda_wrapper.find_loaded_library("libcudart")
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self.assertIsNone(path)
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def test_cudart_check_raises_error(self):
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"""Test CUDART_CHECK raises RuntimeError for non-zero error codes"""
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lib = MagicMock()
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lib.cudaGetErrorString.return_value = b"mock error"
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fake = cuda_wrapper.CudaRTLibrary.__new__(cuda_wrapper.CudaRTLibrary)
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fake.funcs = {"cudaGetErrorString": lib.cudaGetErrorString}
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with self.assertRaises(RuntimeError):
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fake.CUDART_CHECK(1) # Non-zero error code triggers exception
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@patch("fastdeploy.distributed.custom_all_reduce.cuda_wrapper.find_loaded_library")
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@patch("ctypes.CDLL")
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def test_cache_path_reuse(self, mock_cdll, mock_find_lib):
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"""Test library path caching is reused between instances"""
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mock_find_lib.return_value = "/usr/local/cuda/lib64/libcudart.so"
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mock_lib = MagicMock()
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mock_cdll.return_value = mock_lib
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for func in cuda_wrapper.CudaRTLibrary.exported_functions:
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setattr(mock_lib, func.name, MagicMock(return_value=0))
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mock_lib.cudaGetErrorString.return_value = b"ok"
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first = cuda_wrapper.CudaRTLibrary()
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second = cuda_wrapper.CudaRTLibrary()
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self.assertIs(first.funcs, second.funcs)
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self.assertIs(first.lib, second.lib)
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if __name__ == "__main__":
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unittest.main()
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