1# Copyright 2016 The TensorFlow Authors. All Rights Reserved. 2# 3# Licensed under the Apache License, Version 2.0 (the "License"); 4# you may not use this file except in compliance with the License. 5# You may obtain a copy of the License at 6# 7# http://www.apache.org/licenses/LICENSE-2.0 8# 9# Unless required by applicable law or agreed to in writing, software 10# distributed under the License is distributed on an "AS IS" BASIS, 11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12# See the License for the specific language governing permissions and 13# limitations under the License. 14# ============================================================================== 15"""Tests for the SWIG-wrapped device lib.""" 16 17from tensorflow.core.protobuf import config_pb2 18from tensorflow.python.client import device_lib 19from tensorflow.python.framework import test_util 20from tensorflow.python.platform import googletest 21from tensorflow.python.platform import test 22 23 24class DeviceLibTest(test_util.TensorFlowTestCase): 25 26 def testListLocalDevices(self): 27 devices = device_lib.list_local_devices() 28 self.assertGreater(len(devices), 0) 29 self.assertEqual(devices[0].device_type, "CPU") 30 31 devices = device_lib.list_local_devices(config_pb2.ConfigProto()) 32 self.assertGreater(len(devices), 0) 33 self.assertEqual(devices[0].device_type, "CPU") 34 35 # GPU test 36 if test.is_gpu_available(): 37 self.assertGreater(len(devices), 1) 38 self.assertIn("GPU", [d.device_type for d in devices]) 39 40 41if __name__ == "__main__": 42 googletest.main() 43