text: """
   Copyright (c) 2018 Intel Corporation
  
   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 extensions.front.caffe.prelu_ext import PreluFrontExtractor
  from extensions.ops.prelu import PreluOp
  from mo.utils.unittest.extractors import FakeMultiParam
  from mo.utils.unittest.graph import FakeNode
  from mo.ops.op import Op
  
  
  class FakePReLUProtoLayer:
      def __init__(self, val):
          self.prelu_param = val
  
  
  class TestPreluExt(unittest.TestCase):
      @classmethod
      def setUpClass(cls):
          Op.registered_ops['PReLU'] = PreluOp
  
      def test_prelu_no_pb_no_ml(self):
          self.assertRaises(AttributeError, PreluFrontExtractor.extract, None)
  
      @patch('extensions.front.caffe.prelu_ext.merge_attrs')
      def test_reogyolo_ext_ideal_numbers(self, merge_attrs_mock):
          params = {
              'channel_shared': False
          }
  
          merge_attrs_mock.return_value = {
              **params
          }
  
          fake_pl = FakePReLUProtoLayer(FakeMultiParam(params))
          fake_node = FakeNode(fake_pl, None)
  
          PreluFrontExtractor.extract(fake_node)
  
          exp_res = {
              'type': 'PReLU',
              'op': 'PReLU',
              'channel_shared': 0,
              'infer': PreluOp.prelu_shape_infer,
          }
  
          for key in exp_res.keys():
              self.assertEqual(fake_node[key], exp_res[key])
  