Coverage increased (+0.03%) to 98.936% when pulling aaad59a on issues/297-snmp-check into abd9165 on master.

Interface information of the device is not shown on in device status page. I think the culprit is the following code:

openwisp-monitoring/openwisp_monitoring/device/base/models.py

Lines 80 to 82 in 3d094ac

	# don't show interfaces if they don't have any useful info
	if len(interface.keys()) <= 2:
	continue

@purhan please ensure that information about interfaces is displayed

@pandafy Thanks! I found out the problem in netengine and fixed it in this commit. It should be working now, we don't need to change anything here

During our testing we noticed that the CPU load chart is not laoded for AirOS, can you please fix this?

@nemesisdesign This was done in openwisp/netengine@5424532

I need to increase coverage.

@nemesisdesign The coverage is reduced due to absence of test_auto_check_creation -> SNMP auto subtest (which I later added), So I tried various methods to set AUTO_SNMP = True in check/tests/test_models.py using @patch() / @patch_objects() /@override_settings() , They indeed set AUTO_SNMP to True but before calling post_save.connect() (checks/apps.py) AUTO_SNMP always False due to which check never created.

See below:

# check/tests/test_models.py

@patch('openwisp_monitoring.check.settings.AUTO_SNMP', True)
    def test_auto_check_creation(self):
        self.assertEqual(Check.objects.count(), 0)
        d = self._create_device(organization=self._create_org())
        print(app_settings.__dict__)
        print(Check.objects.all())
        # check is automatically created via django signal
        self.assertEqual(Check.objects.count(), 3) # It should have Ping, Config Applied & SNMP
        ... ...
        ... ...
        with self.subTest('Test AUTO_SNMP'):
            c3 = Check.objects.filter(check_type=self._SNMP_DEVICEMONITORING).first()
            self.assertEqual(c3.content_object, d)
            self.assertEqual(self._SNMP_DEVICEMONITORING, c3.check_type)

print(f'Value of AUTO_SNMP = {app_settings.AUTO_SNMP}')
        if app_settings.AUTO_SNMP:
        ...
        ...
print(app_settings.__dict__)
print(Check.objects.all())

# output

Value of AUTO_SNMP = False # Because of this snmp signal not called and check not created

... ... ... 'AUTO_PING': True, 'AUTO_CONFIG_CHECK': True, 'AUTO_SNMP': True, 'MANAGEMENT_IP_ONLY': False, 'PING_CHECK_CONFIG': {}}

<QuerySet [<Check: Ping (Device: default.test.device)>, <Check: Configuration Applied (Device: default.test.device)>]>

AssertionError: 2 != 3

----------------------------------------------------------------------
Ran 1 test in 0.092s

FAILED (failures=1)

Current possible solution :

• Set AUTO_SNMP directly in openwisp-monitoring/tests/openwisp2/settings.py
• Made required changes in broken tests aaad59a.

# settings.py 
if TESTING:
    ...
    ...
    # for testing AUTO_SNMP
    OPENWISP_MONITORING_AUTO_SNMP = True