diff --git a/src/cutecoin/core/registry/identities.py b/src/cutecoin/core/registry/identities.py
index 409c498359c597a8afba8a88658bbe71cbd56551..23848505089a5ab622bb13ec384528d8e9dad3cf 100644
--- a/src/cutecoin/core/registry/identities.py
+++ b/src/cutecoin/core/registry/identities.py
@@ -73,7 +73,7 @@ class IdentitiesRegistry:
                 except ClientError:
                     lookup_tries += 1
                 except NoPeerAvailable:
-                    pass
+                    return identity
 
         if pubkey in self._instances:
             identity = self._instances[pubkey]
@@ -90,6 +90,7 @@ class IdentitiesRegistry:
                 except ValueError as e:
                     if '404' in str(e) or '400' in str(e):
                         yield from lookup()
+                        return identity
                     else:
                         tries += 1
                 except asyncio.TimeoutError:
diff --git a/src/cutecoin/tests/__init__.py b/src/cutecoin/tests/__init__.py
index 1d65e88026c473b057c001647a460228f8415d7c..75eaa8726d29edc487d41f0280b1683aa508c686 100644
--- a/src/cutecoin/tests/__init__.py
+++ b/src/cutecoin/tests/__init__.py
@@ -1 +1 @@
-from .qapp import get_application
\ No newline at end of file
+from .qapp import get_application, unitttest_exception_handler
\ No newline at end of file
diff --git a/src/cutecoin/tests/gui/certification/test_certification.py b/src/cutecoin/tests/gui/certification/test_certification.py
index 36c3e1e72f322823ce6bcec69266267d2e3ede9e..301d9441b556aff39b86970672118463b9aeeda2 100644
--- a/src/cutecoin/tests/gui/certification/test_certification.py
+++ b/src/cutecoin/tests/gui/certification/test_certification.py
@@ -19,7 +19,7 @@ from cutecoin.core.app import Application
 from cutecoin.core import Account, Community, Wallet
 from cutecoin.core.net import Network, Node
 from cutecoin.core.net.api.bma.access import BmaAccess
-from cutecoin.tests import get_application
+from cutecoin.tests import get_application, unitttest_exception_handler
 from ucoinpy.api import bma
 
 
@@ -29,6 +29,7 @@ class TestCertificationDialog(unittest.TestCase):
         QLocale.setDefault(QLocale("en_GB"))
         self.lp = quamash.QEventLoop(self.qapplication)
         asyncio.set_event_loop(self.lp)
+        self.lp.set_exception_handler(lambda lp, ctx : unitttest_exception_handler(self, lp, ctx))
         self.identities_registry = IdentitiesRegistry({})
 
         self.application = Application(self.qapplication, self.lp, self.identities_registry)
diff --git a/src/cutecoin/tests/gui/identities_tab/test_identities_table.py b/src/cutecoin/tests/gui/identities_tab/test_identities_table.py
index ec36d2d2c5e1984479b8712143f43d33ddd6831e..6dd89e9db8fe136d1b5b6419ecbb4ef2edcf6be7 100644
--- a/src/cutecoin/tests/gui/identities_tab/test_identities_table.py
+++ b/src/cutecoin/tests/gui/identities_tab/test_identities_table.py
@@ -4,7 +4,6 @@ import asyncio
 import quamash
 import logging
 import time
-from ucoinpy.documents.peer import BMAEndpoint as PyBMAEndpoint
 from PyQt5.QtWidgets import QDialog
 from PyQt5.QtCore import QLocale, Qt, QPoint
 from PyQt5.QtTest import QTest
@@ -20,7 +19,7 @@ from cutecoin.core import Account, Community, Wallet
 from cutecoin.core.net import Network, Node
 from ucoinpy.documents.peer import BMAEndpoint
 from cutecoin.core.net.api.bma.access import BmaAccess
-from cutecoin.tests import get_application
+from cutecoin.tests import get_application, unitttest_exception_handler
 
 
 class TestIdentitiesTable(unittest.TestCase):
@@ -29,6 +28,7 @@ class TestIdentitiesTable(unittest.TestCase):
         QLocale.setDefault(QLocale("en_GB"))
         self.lp = quamash.QEventLoop(self.qapplication)
         asyncio.set_event_loop(self.lp)
+        self.lp.set_exception_handler(lambda lp, ctx : unitttest_exception_handler(self, lp, ctx))
         self.identities_registry = IdentitiesRegistry()
 
         self.application = Application(self.qapplication, self.lp, self.identities_registry)
diff --git a/src/cutecoin/tests/gui/process_cfg_community/test_add_community.py b/src/cutecoin/tests/gui/process_cfg_community/test_add_community.py
index 5d5a00ab07c6a5f316f510824912ab39b660f510..52b8a97f34655f490d74d78f39a87ec9435bb102 100644
--- a/src/cutecoin/tests/gui/process_cfg_community/test_add_community.py
+++ b/src/cutecoin/tests/gui/process_cfg_community/test_add_community.py
@@ -15,7 +15,7 @@ from cutecoin.gui.process_cfg_community import ProcessConfigureCommunity
 from cutecoin.gui.password_asker import PasswordAskerDialog
 from cutecoin.core.app import Application
 from cutecoin.core.account import Account
-from cutecoin.tests import get_application
+from cutecoin.tests import get_application, unitttest_exception_handler
 
 
 class ProcessAddCommunity(unittest.TestCase):
@@ -24,6 +24,7 @@ class ProcessAddCommunity(unittest.TestCase):
         QLocale.setDefault(QLocale("en_GB"))
         self.lp = quamash.QEventLoop(self.qapplication)
         asyncio.set_event_loop(self.lp)
+        self.lp.set_exception_handler(lambda lp, ctx : unitttest_exception_handler(self, lp, ctx))
         self.identities_registry = IdentitiesRegistry({})
 
         self.application = Application(self.qapplication, self.lp, self.identities_registry)
diff --git a/src/cutecoin/tests/gui/transfer/test_transfer.py b/src/cutecoin/tests/gui/transfer/test_transfer.py
index dcb83313b8422057285b9ae0ae0dac2076969cf9..16e0cb21681d149f121d1fb2051bed8276171e60 100644
--- a/src/cutecoin/tests/gui/transfer/test_transfer.py
+++ b/src/cutecoin/tests/gui/transfer/test_transfer.py
@@ -19,7 +19,7 @@ from cutecoin.core import Account, Community, Wallet
 from cutecoin.core.net import Network, Node
 from ucoinpy.documents.peer import BMAEndpoint
 from cutecoin.core.net.api.bma.access import BmaAccess
-from cutecoin.tests import get_application
+from cutecoin.tests import get_application, unitttest_exception_handler
 from ucoinpy.api import bma
 
 
@@ -29,6 +29,7 @@ class TestTransferDialog(unittest.TestCase):
         QLocale.setDefault(QLocale("en_GB"))
         self.lp = quamash.QEventLoop(self.qapplication)
         asyncio.set_event_loop(self.lp)
+        self.lp.set_exception_handler(lambda lp, ctx : unitttest_exception_handler(self, lp, ctx))
         self.identities_registry = IdentitiesRegistry({})
 
         self.application = Application(self.qapplication, self.lp, self.identities_registry)
diff --git a/src/cutecoin/tests/gui/wot_tab/test_wot_tab.py b/src/cutecoin/tests/gui/wot_tab/test_wot_tab.py
index b74ac0e2e879a007f2bff99481d8ad8fbbd0e04c..af48ad831e2c33f6bcb17509deea8345276b1f39 100644
--- a/src/cutecoin/tests/gui/wot_tab/test_wot_tab.py
+++ b/src/cutecoin/tests/gui/wot_tab/test_wot_tab.py
@@ -19,7 +19,7 @@ from cutecoin.core.app import Application
 from cutecoin.core import Account, Community, Wallet
 from cutecoin.core.net import Network, Node
 from cutecoin.core.net.api.bma.access import BmaAccess
-from cutecoin.tests import get_application
+from cutecoin.tests import get_application, unitttest_exception_handler
 
 
 class TestIdentitiesTable(unittest.TestCase):
@@ -28,6 +28,7 @@ class TestIdentitiesTable(unittest.TestCase):
         QLocale.setDefault(QLocale("en_GB"))
         self.lp = quamash.QEventLoop(self.qapplication)
         asyncio.set_event_loop(self.lp)
+        self.lp.set_exception_handler(lambda lp, ctx : unitttest_exception_handler(self, lp, ctx))
         self.identities_registry = IdentitiesRegistry()
 
         self.application = Application(self.qapplication, self.lp, self.identities_registry)
diff --git a/src/cutecoin/tests/qapp.py b/src/cutecoin/tests/qapp.py
index 75c314f569a977251e69d5c815009111d705d685..0de485b77dcc9f90e78b7de695f43c920a095c3a 100644
--- a/src/cutecoin/tests/qapp.py
+++ b/src/cutecoin/tests/qapp.py
@@ -2,6 +2,32 @@
 _application_ = []
 
 
+def unitttest_exception_handler(test, loop, context):
+    """
+    An exception handler which exists the program if the exception
+    was not catch
+    :param loop: the asyncio loop
+    :param context: the exception context
+    """
+    message = context.get('message')
+    if not message:
+        message = 'Unhandled exception in event loop'
+
+    try:
+        exception = context['exception']
+    except KeyError:
+        exc_info = False
+    else:
+        exc_info = (type(exception), exception, exception.__traceback__)
+
+    log_lines = [message]
+    for key in [k for k in sorted(context) if k not in {'message', 'exception'}]:
+        log_lines.append('{}: {!r}'.format(key, context[key]))
+
+    test.failureException('\n'.join(log_lines))
+
+
+
 def get_application():
     """Get the singleton QApplication"""
     from quamash import QApplication