Synchronize the tests code with current master

Given the recent changes in the yggdrasil code organization, most of the
tests were broken (bad imports mostly).

This commit fixes the tests so that we can run them against yggdrasil
master.

tests/c_communicator_test.py

@@ -5,7 +5,7 @@ import os
 import json
 from yggdrasil.erebor   import runner
 from yggdrasil.erebor   import FrameworkControler
-from yggdrasil.isengard import consts
+from yggdrasil import consts
 
 class MPIComTest(FrameworkControler):
 

tests/fail_group.py

 #!/usr/bin/env python3
 import sys
-from yggdrasil.isengard import consts
+from yggdrasil import consts
 from yggdrasil.erebor   import runner
 from yggdrasil.task_lib import Group
 from yggdrasil.task_lib import NumberedGroup

tests/grid5kGrouptest.py

@@ -10,7 +10,7 @@ import threading
 from yggdrasil.erebor   import runner
 from yggdrasil.erebor   import FrameworkControler
 from yggdrasil.erebor   import Erebor
-from yggdrasil.isengard import consts
+from yggdrasil import consts
 
 def flushprint(*args, **kwargs):
     print(*args, file=sys.stdout, **kwargs)
@@ -85,7 +85,7 @@ class Grid5000GroupTest(FrameworkControler):
                 # spawn a network on each nodes
                 network = self.erebor.networks.get(networkId)
                 network.register_on_bridge_generic_messages(self.ping_receive)
-                spawned = network.spawned_list()
+                spawned = network.connector.spawned_list()
                 i       = 0
                 self.to_wait_groups = len(spawned) -1
                 for spawn in spawned :

tests/grid5kSlowGrouptest.py

@@ -2,7 +2,7 @@
 import sys
 from yggdrasil.erebor   import runner
 from yggdrasil.erebor   import FrameworkControler
-from yggdrasil.isengard import consts
+from yggdrasil import consts
 
 class Grid5000SlowGroupTest(FrameworkControler):
 
@@ -43,7 +43,7 @@ class Grid5000SlowGroupTest(FrameworkControler):
                 # spawn a network on each nodes
                 network = self.erebor.networks.get(networkId)
                 network.register_on_bridge_generic_messages(self.ping_receive)
-                spawned = network.spawned_list()
+                spawned = network.connector.spawned_list()
                 i       = 0
                 self.to_wait_groups = len(spawned) -1
                 for spawn in spawned :

tests/grid5ktest.py

@@ -10,7 +10,7 @@ import threading
 from yggdrasil.erebor   import runner
 from yggdrasil.erebor   import FrameworkControler
 from yggdrasil.erebor   import Erebor
-from yggdrasil.isengard import consts
+from yggdrasil import consts
 
 def flushprint(*args, **kwargs):
     print(*args, file=sys.stdout, **kwargs)

tests/mpi_client_emulator.py

@@ -3,7 +3,7 @@ import json
 import getopt
 import sys
 import zmq
-from yggdrasil.isengard import consts
+from yggdrasil import consts
 from yggdrasil.erebor   import MPIDecoder
 
 def runner(argv):

tests/mpi_communicator_test.py

@@ -5,7 +5,7 @@ import os
 import json
 from yggdrasil.erebor   import runner
 from yggdrasil.erebor   import FrameworkControler
-from yggdrasil.isengard import consts
+from yggdrasil import consts
 
 class MPIComTest(FrameworkControler):
 

tests/mpi_jail_task.py

 #!/usr/bin/env python3
 import sys
 import os
-from yggdrasil.isengard import consts
+from yggdrasil import consts
 from yggdrasil.erebor   import runner
 from yggdrasil.task_lib import MPIJail
 from yggdrasil.task_lib import MPIExecutor

tests/mpi_server_emulator.py

@@ -3,7 +3,7 @@ import json
 import getopt
 import sys
 import zmq
-from yggdrasil.isengard import consts
+from yggdrasil import consts
 from yggdrasil.erebor   import MPIDecoder
 
 def main(argv):

tests/sample.py

@@ -8,7 +8,7 @@ import threading
 from yggdrasil.erebor   import runner
 from yggdrasil.erebor   import FrameworkControler
 from yggdrasil.erebor   import Erebor
-from yggdrasil.isengard import consts
+from yggdrasil import consts
 
 def flushprint(*args, **kwargs):
     print(*args, file=sys.stdout, **kwargs)
@@ -48,7 +48,7 @@ class Sample(FrameworkControler):
                         print("\n Erebor started on {} \n".format("4"))
                         # send a message to the erebor instance on 4, will only
                         # be visible when logs are enabled
-                        network.send_message_to("4", "all", "coucou", False)
+                        network.connector.send_message_to("4", "all", "coucou", False)
 
                         # Will be called after the group/network nouveau is
                         # started

tests/simple_mpi_communicator_test.py

@@ -5,7 +5,7 @@ import os
 import json
 from yggdrasil.erebor   import runner
 from yggdrasil.erebor   import FrameworkControler
-from yggdrasil.isengard import consts
+from yggdrasil import consts
 
 class MPIComTest(FrameworkControler):
 

tests/simple_mpi_emulator.py

@@ -3,7 +3,7 @@ import json
 import getopt
 import sys
 import zmq
-from yggdrasil.isengard import consts
+from yggdrasil import consts
 from yggdrasil.erebor   import MPIDecoder
 
 def main(argv):

tests/simple_task.py

 #!/usr/bin/env python3
 import sys
-from yggdrasil.isengard import consts
+from yggdrasil import consts
 from yggdrasil.erebor   import runner
 from yggdrasil.task_lib import Group
 from yggdrasil.task_lib import NumberedGroup