Do not send project closed event when it's a snapshot restore

Ref #602

gns3server/controller/project.py

@@ -440,11 +440,12 @@ class Project:
         os.remove(snapshot.path)
 
     @asyncio.coroutine
-    def close(self):
+    def close(self, ignore_notification=False):
         for compute in self._project_created_on_compute:
             yield from compute.post("/projects/{}/close".format(self._id))
         self._cleanPictures()
         self._status = "closed"
+        if not ignore_notification:
            self.controller.notification.emit("project.closed", self.__json__())
 
     def _cleanPictures(self):

gns3server/controller/snapshot.py

@@ -77,7 +77,8 @@ class Snapshot:
         """
 
         yield from self._project.delete_on_computes()
-        yield from self._project.close()
+        # We don't send close notif to clients because the close / open dance is purely internal
+        yield from self._project.close(ignore_notification=True)
         shutil.rmtree(os.path.join(self._project.path, "project-files"))
         with open(self._path, "rb") as f:
             project = yield from import_project(self._project.controller, self._project.id, f, location=self._project.path)

tests/controller/test_snapshot.py

@@ -17,7 +17,7 @@
 
 import os
 import pytest
-from unittest.mock import patch
+from unittest.mock import patch, MagicMock
 
 from gns3server.controller.project import Project
 from gns3server.controller.snapshot import Snapshot
@@ -90,9 +90,14 @@ def test_restore(project, controller, async_run):
     assert os.path.exists(test_file)
     assert len(project.nodes) == 2
 
+    controller._notification = MagicMock()
     with patch("gns3server.config.Config.get_section_config", return_value={"local": True}):
         async_run(snapshot.restore())
 
+    # project.closed notification should not be send when restoring snapshots
+    assert "project.closed" not in [c[0][0] for c in controller.notification.emit.call_args_list]
+
+
     project = controller.get_project(project.id)
     assert not os.path.exists(test_file)
     assert len(project.nodes) == 1