def test_insert(self):
self.assertEqual("", ExampleConfig.current().string_field)
request = self.factory.post('/config/ExampleConfig',
{"string_field": "string_value"})
request.user = self.user
__ = self.current_view(request)
self.assertEqual("string_value", ExampleConfig.current().string_field)
self.assertEqual(self.user, ExampleConfig.current().changed_by)
def test_no_config_empty_cache(self):
# First time reads from the database
with self.assertNumQueries(1):
current = ExampleConfig.current()
self.assertEqual(current.int_field, 10)
self.assertEqual(current.string_field, '')
# Follow-on request reads from cache with no database request.
with self.assertNumQueries(0):
cached_current = ExampleConfig.current()
self.assertEqual(cached_current.int_field, 10)
self.assertEqual(cached_current.string_field, '')
def test_cache_set(self):
# Nothing is cached, so we take a database hit for this.
with self.assertNumQueries(1):
default = ExampleConfig.current()
self.assertEqual(default.string_field, '')
first = ExampleConfig(changed_by=self.user)
first.string_field = 'first'
first.save()
# The save() call above should have invalidated the cache, so we expect
# to see a query to get the current config value.
with self.assertNumQueries(1):
current = ExampleConfig.current()
self.assertEqual(current.string_field, 'first')
def test_config_ordering(self):
with freeze_time('2012-01-01'):
first = ExampleConfig(changed_by=self.user)
first.string_field = 'first'
first.save()
second = ExampleConfig(changed_by=self.user)
second.string_field = 'second'
second.save()
self.assertEqual(ExampleConfig.current().string_field, 'second')
def test_multiple_inserts(self):
for i in six.moves.range(3): # pylint: disable=no-member
self.assertEqual(i, ExampleConfig.objects.all().count())
request = self.factory.post('/config/ExampleConfig',
{"string_field": str(i)})
request.user = self.user
response = self.current_view(request)
self.assertEqual(201, response.status_code)
self.assertEqual(i + 1, ExampleConfig.objects.all().count())
self.assertEqual(str(i), ExampleConfig.current().string_field)
def test_cache_set(self):
with self.assertNumQueries(1):
default = ExampleConfig.current('left', 'right', self.user)
self.assertEqual(default.string_field, '')
first = ExampleKeyedConfig(
changed_by=self.user,
left='left',
right='right',
user=self.user,
string_field='first',
)
first.save()
# Cache is invalidated by the save above, so another query is made.
with self.assertNumQueries(1):
ExampleKeyedConfig.current('left', 'right', self.user)