2.0 beta NFVBENCH-91 Allow multi-chaining with separate edge networks

[nfvbench.git] / test / mock_trex.py

diff --git a/test/mock_trex.py b/test/mock_trex.py
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+++ b/test/mock_trex.py
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+# Copyright 2018 Cisco Systems, Inc.  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.
+"""This module creates the missing Trex library classes when they are not installed."""
+
+import sys
+
+# Because trex_stl_lib may not be installed when running unit test
+# nfvbench.traffic_client will try to import STLError:
+# from trex_stl_lib.api import STLError
+# will raise ImportError: No module named trex_stl_lib.api
+# trex.py will also try to import a number of trex_stl_lib classes
+try:
+    import trex_stl_lib.api
+    assert trex_stl_lib.api
+except ImportError:
+    from types import ModuleType
+
+    # Make up a trex_stl_lib.api.STLError class
+    class STLDummy(Exception):
+        """Dummy class."""
+
+        pass
+
+    stl_lib_mod = ModuleType('trex_stl_lib')
+    sys.modules['trex_stl_lib'] = stl_lib_mod
+    api_mod = ModuleType('trex_stl_lib.api')
+    stl_lib_mod.api = api_mod
+    sys.modules['trex_stl_lib.api'] = api_mod
+    api_mod.STLError = STLDummy
+    api_mod.STLxyz = STLDummy
+    api_mod.CTRexVmInsFixHwCs = STLDummy
+    api_mod.Dot1Q = STLDummy
+    api_mod.Ether = STLDummy
+    api_mod.IP = STLDummy
+    api_mod.STLClient = STLDummy
+    api_mod.STLFlowLatencyStats = STLDummy
+    api_mod.STLFlowStats = STLDummy
+    api_mod.STLPktBuilder = STLDummy
+    api_mod.STLScVmRaw = STLDummy
+    api_mod.STLStream = STLDummy
+    api_mod.STLTXCont = STLDummy
+    api_mod.STLVmFixChecksumHw = STLDummy
+    api_mod.STLVmFlowVar = STLDummy
+    api_mod.STLVmFlowVarRepetableRandom = STLDummy
+    api_mod.STLVmWrFlowVar = STLDummy
+    api_mod.UDP = STLDummy
+
+    services_mod = ModuleType('trex_stl_lib.services')
+    stl_lib_mod.services = services_mod
+    sys.modules['trex_stl_lib.services'] = services_mod
+
+    arp_mod = ModuleType('trex_stl_lib.services.trex_stl_service_arp')
+    services_mod.trex_stl_service_arp = arp_mod
+    sys.modules['trex_stl_lib.services.trex_stl_service_arp'] = arp_mod
+    arp_mod.STLServiceARP = STLDummy
+
+def no_op():
+    """Empty function."""
+    pass