IOU integration.

Improvements on module management.
File upload support.
Config file for the server.

tests/iou/test_iou_device.py

@@ -0,0 +1,29 @@
+from gns3server.modules.iou import IOUDevice
+import os
+import pytest
+
+
+@pytest.fixture(scope="session")
+def iou(request):
+
+    cwd = os.path.dirname(os.path.abspath(__file__))
+    iou_path = os.path.join(cwd, "i86bi_linux-ipbase-ms-12.4.bin")
+    iou_device = IOUDevice(iou_path, "/tmp")
+    iou_device.start()
+    request.addfinalizer(iou_device.delete)
+    return iou_device
+
+
+def test_iou_is_started(iou):
+
+    print(iou.command())
+    assert iou.id == 1  # we should have only one IOU running!
+    assert iou.is_running()
+
+
+def test_iou_restart(iou):
+
+    iou.stop()
+    assert not iou.is_running()
+    iou.start()
+    assert iou.is_running()