Repair VirtualBox VM support

Fix #650

tests/controller/gns3vm/test_virtualbox_gns3_vm.py

@@ -0,0 +1,59 @@
+#!/usr/bin/env python
+#
+# Copyright (C) 2016 GNS3 Technologies Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import pytest
+from tests.utils import asyncio_patch
+
+from gns3server.controller.gns3vm.virtualbox_gns3_vm import VirtualBoxGNS3VM
+
+
+@pytest.fixture
+def gns3vm(controller):
+    vm = VirtualBoxGNS3VM(controller)
+    vm.vmname = "GNS3 VM"
+    return vm
+
+
+def test_look_for_interface(gns3vm, async_run):
+    showvminfo = """
+nic1="hostonly"
+nictype1="82540EM"
+nicspeed1="0"
+nic2="nat"
+nictype2="82540EM"
+nicspeed2="0"
+nic3="none"
+nic4="none"
+nic5="none"
+nic6="none"
+nic7="none"
+nic8="none"
+vcpwidth=1024
+vcpheight=768
+vcprate=512
+vcpfps=25
+GuestMemoryBalloon=0
+    """
+
+    with asyncio_patch("gns3server.controller.gns3vm.virtualbox_gns3_vm.VirtualBoxGNS3VM._execute", return_value=showvminfo) as mock:
+        res = async_run(gns3vm._look_for_interface("nat"))
+    mock.assert_called_with('showvminfo', ['GNS3 VM', '--machinereadable'])
+    assert res == 2
+
+    with asyncio_patch("gns3server.controller.gns3vm.virtualbox_gns3_vm.VirtualBoxGNS3VM._execute", return_value=showvminfo) as mock:
+        res = async_run(gns3vm._look_for_interface("dummy"))
+    assert res == -1