Files
edx-platform/common/djangoapps/track/tests/test_tracker.py
2021-05-10 13:50:19 +05:00

119 lines
3.7 KiB
Python

# lint-amnesty, pylint: disable=missing-module-docstring
from django.conf import settings
from django.test import TestCase
from django.test.utils import override_settings
from common.djangoapps.track import tracker
from common.djangoapps.track.backends import BaseBackend
SIMPLE_SETTINGS = {
'default': {
'ENGINE': 'common.djangoapps.track.tests.test_tracker.DummyBackend',
'OPTIONS': {
'flag': True
}
}
}
MULTI_SETTINGS = {
'first': {
'ENGINE': 'common.djangoapps.track.tests.test_tracker.DummyBackend',
},
'second': {
'ENGINE': 'common.djangoapps.track.tests.test_tracker.DummyBackend',
}
}
class TestTrackerInstantiation(TestCase):
"""Test that a helper function can instantiate backends from their name."""
def setUp(self):
# pylint: disable=protected-access
super().setUp() # lint-amnesty, pylint: disable=super-with-arguments
self.get_backend = tracker._instantiate_backend_from_name
def test_instatiate_backend(self):
name = 'common.djangoapps.track.tests.test_tracker.DummyBackend'
options = {'flag': True}
backend = self.get_backend(name, options)
assert isinstance(backend, DummyBackend)
assert backend.flag
def test_instatiate_backends_with_invalid_values(self):
def get_invalid_backend(name, parameters):
return self.get_backend(name, parameters)
options = {}
name = 'common.djangoapps.track.backends.logger'
self.assertRaises(ValueError, get_invalid_backend, name, options)
name = 'common.djangoapps.track.backends.logger.Foo'
self.assertRaises(ValueError, get_invalid_backend, name, options)
name = 'this.package.does.not.exists'
self.assertRaises(ValueError, get_invalid_backend, name, options)
name = 'unittest.TestCase'
self.assertRaises(ValueError, get_invalid_backend, name, options)
class TestTrackerDjangoInstantiation(TestCase):
"""Test if backends are initialized properly from Django settings."""
@override_settings(TRACKING_BACKENDS=SIMPLE_SETTINGS.copy())
def test_django_simple_settings(self):
"""Test configuration of a simple backend"""
backends = self._reload_backends()
assert len(backends) == 1
tracker.send({})
assert list(backends.values())[0].count == 1
@override_settings(TRACKING_BACKENDS=MULTI_SETTINGS.copy())
def test_django_multi_settings(self):
"""Test if multiple backends can be configured properly."""
backends = list(self._reload_backends().values())
assert len(backends) == 2
event_count = 10
for _ in range(event_count):
tracker.send({})
assert backends[0].count == event_count
assert backends[1].count == event_count
@override_settings(TRACKING_BACKENDS=MULTI_SETTINGS.copy())
def test_django_remove_settings(self):
"""Test if a backend can be remove by setting it to None."""
settings.TRACKING_BACKENDS.update({'second': None})
backends = self._reload_backends()
assert len(backends) == 1
def _reload_backends(self): # lint-amnesty, pylint: disable=missing-function-docstring
# pylint: disable=protected-access
# Reset backends
tracker._initialize_backends_from_django_settings()
return tracker.backends
class DummyBackend(BaseBackend): # lint-amnesty, pylint: disable=missing-class-docstring
def __init__(self, **options):
super().__init__(**options) # lint-amnesty, pylint: disable=super-with-arguments
self.flag = options.get('flag', False)
self.count = 0
def send(self, event):
self.count += 1