text: # Copyright 2015 F5 Networks Inc.
  #
  # 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.
  #
  
  from f5.bigip.tm.asm.signature_update import Signature_Update
  from f5.sdk_exception import UnsupportedOperation
  
  import mock
  import pytest
  
  
  @pytest.fixture
  def FakeSignatureUpdate():
      fake_asm = mock.MagicMock()
      fake_sig = Signature_Update(fake_asm)
      fake_sig._meta_data['bigip'].tmos_version = '11.6.0'
      return fake_sig
  
  
  class TestSignatureUpdate(object):
      def test_update_raises(self, FakeSignatureUpdate):
          with pytest.raises(UnsupportedOperation):
              FakeSignatureUpdate.update()
  