def test_is_invalid_if_remote_cache_updated_right_after_local_last_updated(
self):
cache.clear()
mydict = CachedDict(timeout=100)
mydict.remote_cache.set_many({
mydict.remote_cache_key: {
'MYFLAG': 'value1'
},
mydict.remote_cache_last_updated_key:
12345
})
# load the local cache from remote cache
# this sets: mydict._local_last_updated = time.time()
mydict._populate()
# simulate remote cache updated by external process
# remote_cache[remote_cache_last_updated_key] = time.time()
mydict.remote_cache.set_many({
mydict.remote_cache_key: {
'MYFLAG': 'value2'
},
mydict.remote_cache_last_updated_key:
time.time()
})
assert mydict.local_cache_is_invalid()
def test_populate_timeout(self):
cache.clear()
mydict = CachedDict(timeout=100)
now = time.time()
mydict.remote_cache.set_many({
mydict.remote_cache_key: {'MYFLAG': 'value1'},
mydict.remote_cache_last_updated_key: now
})
# load the local cache from remote cache
mydict._populate()
mydict.remote_cache.set_many({
mydict.remote_cache_key: {'MYFLAG': 'value2'},
mydict.remote_cache_last_updated_key: now + 1
})
# before timeout: local cache should not be updated
with mock.patch('time.time', mock.Mock(return_value=now + mydict.timeout - 1)):
mydict._populate()
mydict._populate()
mydict._populate()
assert mydict._local_cache == {'MYFLAG': 'value1'}
# after timeout: local cache should be updated
with mock.patch('time.time', mock.Mock(return_value=now + mydict.timeout + 1)):
mydict._populate()
assert mydict._local_cache == {'MYFLAG': 'value2'}
def test_local_last_updated(self):
cache.clear()
mydict = CachedDict(timeout=100)
mydict.remote_cache.set_many({
mydict.remote_cache_key: {'MYFLAG': 'value1'},
mydict.remote_cache_last_updated_key: 12345
})
# load the local cache from remote cache
# this sets: mydict._local_last_updated = time.time()
mydict._populate()
local_last_updated = mydict._local_last_updated
assert mydict._local_cache == {'MYFLAG': 'value1'}
with mock.patch('time.time', mock.Mock(return_value=time.time() + 101)):
mydict.remote_cache.set_many({
mydict.remote_cache_key: {'MYFLAG': 'value2'},
mydict.remote_cache_last_updated_key: time.time()
})
assert mydict.local_cache_has_expired()
assert mydict.local_cache_is_invalid()
mydict._populate()
assert mydict._local_cache == {'MYFLAG': 'value2'}
assert mydict._local_last_updated != local_last_updated
def test_is_invalid_if_remote_cache_updated_right_after_local_last_updated(self):
cache.clear()
mydict = CachedDict(timeout=100)
mydict.remote_cache.set_many({
mydict.remote_cache_key: {'MYFLAG': 'value1'},
mydict.remote_cache_last_updated_key: 12345
})
# load the local cache from remote cache
# this sets: mydict._local_last_updated = time.time()
mydict._populate()
# simulate remote cache updated by external process
# remote_cache[remote_cache_last_updated_key] = time.time()
mydict.remote_cache.set_many({
mydict.remote_cache_key: {'MYFLAG': 'value2'},
mydict.remote_cache_last_updated_key: time.time()
})
assert mydict.local_cache_is_invalid()
def test_does_not_expire_by_default(self, _update_cache_data):
mydict = CachedDict(timeout=100)
mydict._cache = {}
mydict._last_updated = time.time()
mydict._populate()
self.assertFalse(_update_cache_data.called)
def test_reset_does_expire(self, _update_cache_data):
mydict = CachedDict(timeout=100)
mydict._cache = {}
mydict._last_updated = time.time()
mydict._populate(reset=True)
_update_cache_data.assert_called_once_with()
def test_expired_does_update_data(self, _update_cache_data):
mydict = CachedDict()
mydict._cache = {}
mydict._last_updated = time.time()
mydict._populate()
_update_cache_data.assert_called_once_with()
def setUp(self):
self.cache = mock.Mock()
self.mydict = CachedDict(timeout=100, cache=self.cache)
class CachedDictTest(TestCase):
def setUp(self):
self.cache = mock.Mock()
self.mydict = CachedDict(timeout=100, cache=self.cache)
@mock.patch('modeldict.base.CachedDict._update_cache_data')
@mock.patch('modeldict.base.CachedDict.local_cache_has_expired', mock.Mock(return_value=True))
@mock.patch('modeldict.base.CachedDict.local_cache_is_invalid', mock.Mock(return_value=False))
def test_expired_does_update_data(self, _update_cache_data):
self.mydict._local_cache = {}
self.mydict._local_last_updated = time.time()
self.mydict._last_checked_for_remote_changes = time.time()
self.mydict._populate()
assert not _update_cache_data.called
@mock.patch('modeldict.base.CachedDict._update_cache_data')
@mock.patch('modeldict.base.CachedDict.local_cache_has_expired', mock.Mock(return_value=False))
@mock.patch('modeldict.base.CachedDict.local_cache_is_invalid', mock.Mock(return_value=True))
def test_reset_does_expire(self, _update_cache_data):
self.mydict._local_cache = {}
self.mydict._local_last_updated = time.time()
self.mydict._last_checked_for_remote_changes = time.time()
self.mydict._populate(reset=True)
_update_cache_data.assert_called_once_with()
@mock.patch('modeldict.base.CachedDict._update_cache_data')
@mock.patch('modeldict.base.CachedDict.local_cache_has_expired', mock.Mock(return_value=False))
@mock.patch('modeldict.base.CachedDict.local_cache_is_invalid', mock.Mock(return_value=True))
def test_does_not_expire_by_default(self, _update_cache_data):
self.mydict._local_cache = {}
self.mydict._local_last_updated = time.time()
self.mydict._last_checked_for_remote_changes = time.time()
self.mydict._populate()
assert not _update_cache_data.called
def test_is_expired_missing_last_checked_for_remote_changes(self):
self.mydict._last_checked_for_remote_changes = 0.0
assert self.mydict.local_cache_has_expired()
assert not self.cache.get.called
def test_is_expired_last_updated_beyond_timeout(self):
self.mydict._local_last_updated = time.time() - 101
assert self.mydict.local_cache_has_expired()
def test_is_expired_within_bounds(self):
self.mydict._last_checked_for_remote_changes = time.time()
def test_is_not_expired_if_remote_cache_is_old(self):
# set it to an expired time
self.mydict._local_cache = {'a': 1}
self.mydict._local_last_updated = time.time() - 100
self.cache.get.return_value = self.mydict._local_last_updated - 1
result = self.mydict.local_cache_is_invalid()
self.cache.get.assert_called_once_with(self.mydict.remote_cache_last_updated_key)
assert not result
def test_is_expired_if_remote_cache_is_new(self):
# set it to an expired time, but with a local cache
self.mydict._local_cache = dict(a=1)
last_update = time.time() - 101
self.mydict._local_last_updated = last_update
self.mydict._last_checked_for_remote_changes = last_update
self.cache.get.return_value = time.time()
result = self.mydict.local_cache_is_invalid()
assert result
self.cache.get.assert_called_once_with(
self.mydict.remote_cache_last_updated_key
)
def test_is_invalid_if_local_cache_is_none(self):
self.mydict._local_cache = None
assert self.mydict.local_cache_is_invalid()
def test_is_invalid_if_remote_cache_updated_right_after_local_last_updated(self):
cache.clear()
mydict = CachedDict(timeout=100)
mydict.remote_cache.set_many({
mydict.remote_cache_key: {'MYFLAG': 'value1'},
mydict.remote_cache_last_updated_key: 12345
})
# load the local cache from remote cache
# this sets: mydict._local_last_updated = time.time()
mydict._populate()
# simulate remote cache updated by external process
# remote_cache[remote_cache_last_updated_key] = time.time()
mydict.remote_cache.set_many({
mydict.remote_cache_key: {'MYFLAG': 'value2'},
mydict.remote_cache_last_updated_key: time.time()
})
assert mydict.local_cache_is_invalid()
def test_populate_timeout(self):
cache.clear()
mydict = CachedDict(timeout=100)
now = time.time()
mydict.remote_cache.set_many({
mydict.remote_cache_key: {'MYFLAG': 'value1'},
mydict.remote_cache_last_updated_key: now
})
# load the local cache from remote cache
mydict._populate()
mydict.remote_cache.set_many({
mydict.remote_cache_key: {'MYFLAG': 'value2'},
mydict.remote_cache_last_updated_key: now + 1
})
# before timeout: local cache should not be updated
with mock.patch('time.time', mock.Mock(return_value=now + mydict.timeout - 1)):
mydict._populate()
mydict._populate()
mydict._populate()
assert mydict._local_cache == {'MYFLAG': 'value1'}
# after timeout: local cache should be updated
with mock.patch('time.time', mock.Mock(return_value=now + mydict.timeout + 1)):
mydict._populate()
assert mydict._local_cache == {'MYFLAG': 'value2'}
def test_local_last_updated(self):
cache.clear()
mydict = CachedDict(timeout=100)
mydict.remote_cache.set_many({
mydict.remote_cache_key: {'MYFLAG': 'value1'},
mydict.remote_cache_last_updated_key: 12345
})
# load the local cache from remote cache
# this sets: mydict._local_last_updated = time.time()
mydict._populate()
local_last_updated = mydict._local_last_updated
assert mydict._local_cache == {'MYFLAG': 'value1'}
with mock.patch('time.time', mock.Mock(return_value=time.time() + 101)):
mydict.remote_cache.set_many({
mydict.remote_cache_key: {'MYFLAG': 'value2'},
mydict.remote_cache_last_updated_key: time.time()
})
assert mydict.local_cache_has_expired()
assert mydict.local_cache_is_invalid()
mydict._populate()
assert mydict._local_cache == {'MYFLAG': 'value2'}
assert mydict._local_last_updated != local_last_updated
def test_local_last_updated_not_updated_if_not_needed(self):
cache.clear()
mydict = CachedDict(timeout=100)
mydict.remote_cache.set_many({
mydict.remote_cache_key: {'MYFLAG': 'value1'},
mydict.remote_cache_last_updated_key: 12345
})
# load the local cache from remote cache
# this sets: mydict._local_last_updated = time.time()
mydict._populate()
local_last_updated = mydict._local_last_updated
with mock.patch('time.time', mock.Mock(return_value=time.time() + 101)):
assert mydict.local_cache_has_expired()
assert not mydict.local_cache_is_invalid()
mydict._populate()
assert mydict._local_last_updated == local_last_updated
class CachedDictTest(TestCase):
def setUp(self):
self.cache = mock.Mock()
self.mydict = CachedDict(timeout=100, cache=self.cache)
@mock.patch('modeldict.base.CachedDict._update_cache_data')
@mock.patch('modeldict.base.CachedDict.local_cache_has_expired', mock.Mock(return_value=True))
@mock.patch('modeldict.base.CachedDict.local_cache_is_invalid', mock.Mock(return_value=False))
def test_expired_does_update_data(self, _update_cache_data):
self.mydict._local_cache = {}
self.mydict._last_checked_for_remote_changes = time.time()
self.mydict._populate()
assert not _update_cache_data.called
@mock.patch('modeldict.base.CachedDict._update_cache_data')
@mock.patch('modeldict.base.CachedDict.local_cache_has_expired', mock.Mock(return_value=False))
@mock.patch('modeldict.base.CachedDict.local_cache_is_invalid', mock.Mock(return_value=True))
def test_reset_does_expire(self, _update_cache_data):
self.mydict._local_cache = {}
self.mydict._last_checked_for_remote_changes = time.time()
self.mydict._populate(reset=True)
_update_cache_data.assert_called_once_with()
@mock.patch('modeldict.base.CachedDict._update_cache_data')
@mock.patch('modeldict.base.CachedDict.local_cache_has_expired', mock.Mock(return_value=False))
@mock.patch('modeldict.base.CachedDict.local_cache_is_invalid', mock.Mock(return_value=True))
def test_does_not_expire_by_default(self, _update_cache_data):
self.mydict._local_cache = {}
self.mydict._last_checked_for_remote_changes = time.time()
self.mydict._populate()
assert not _update_cache_data.called
def test_is_expired_missing_last_checked_for_remote_changes(self):
self.mydict._last_checked_for_remote_changes = 0.0
assert self.mydict.local_cache_has_expired()
assert not self.cache.get.called
def test_is_expired_last_updated_beyond_timeout(self):
self.mydict._local_last_updated = time.time() - 101
assert self.mydict.local_cache_has_expired()
def test_is_expired_within_bounds(self):
self.mydict._last_checked_for_remote_changes = time.time()
def test_is_not_expired_if_remote_cache_is_old(self):
# set it to an expired time
self.mydict._local_cache = dict(a=1)
self.mydict._local_last_updated = time.time() - 101
self.cache.get.return_value = self.mydict._local_last_updated
result = self.mydict.local_cache_is_invalid()
self.cache.get.assert_called_once_with(self.mydict.remote_cache_last_updated_key)
assert not result
def test_is_expired_if_remote_cache_is_new(self):
# set it to an expired time, but with a local cache
self.mydict._local_cache = dict(a=1)
self.mydict._last_checked_for_remote_changes = time.time() - 101
self.cache.get.return_value = time.time()
result = self.mydict.local_cache_is_invalid()
self.cache.get.assert_called_once_with(
self.mydict.remote_cache_last_updated_key
)
assert result
def test_populate_timeout(self):
cache.clear()
mydict = CachedDict(timeout=100)
now = int(time.time())
mydict.remote_cache.set_many({
mydict.remote_cache_key: {'MYFLAG': 'value1'},
mydict.remote_cache_last_updated_key: now
})
# load the local cache from remote cache
mydict._populate()
mydict.remote_cache.set(mydict.remote_cache_key, {'MYFLAG': 'value2'})
mydict.remote_cache.set(mydict.remote_cache_last_updated_key, now + 1)
# before timeout: local cache should not be updated
with mock.patch('time.time', mock.Mock(return_value=now + mydict.timeout - 1)):
mydict._populate()
mydict._populate()
mydict._populate()
assert mydict._local_cache == {'MYFLAG': 'value1'}
# after timeout: local cache should be updated
with mock.patch('time.time', mock.Mock(return_value=now + mydict.timeout + 1)):
mydict._populate()
assert mydict._local_cache == {'MYFLAG': 'value2'}
def test_delitem_not_implemented(self):
d = CachedDict()
with pytest.raises(NotImplementedError):
del d['x']
def test_is_expired_within_bounds(self):
mydict = CachedDict(timeout=100)
mydict._last_updated = time.time()
self.assertFalse(mydict.is_expired())
def test_is_expired_last_updated_beyond_timeout(self):
mydict = CachedDict(timeout=100)
mydict._last_updated = time.time() - 101
self.assertTrue(mydict.is_expired())
def test_is_expired_missing_last_updated(self):
mydict = CachedDict(timeout=100)
mydict._last_updated = None
self.assertTrue(mydict.is_expired())
class CachedDictTest(TestCase):
def setUp(self):
self.cache = mock.Mock()
self.mydict = CachedDict(timeout=100, cache=self.cache)
@mock.patch('modeldict.base.CachedDict._update_cache_data')
@mock.patch('modeldict.base.CachedDict.local_cache_has_expired', mock.Mock(return_value=True))
@mock.patch('modeldict.base.CachedDict.local_cache_is_invalid', mock.Mock(return_value=False))
def test_expired_does_update_data(self, _update_cache_data):
self.mydict._local_cache = {}
self.mydict._last_checked_for_remote_changes = time.time()
self.mydict._populate()
self.assertFalse(_update_cache_data.called)
@mock.patch('modeldict.base.CachedDict._update_cache_data')
@mock.patch('modeldict.base.CachedDict.local_cache_has_expired', mock.Mock(return_value=False))
@mock.patch('modeldict.base.CachedDict.local_cache_is_invalid', mock.Mock(return_value=True))
def test_reset_does_expire(self, _update_cache_data):
self.mydict._local_cache = {}
self.mydict._last_checked_for_remote_changes = time.time()
self.mydict._populate(reset=True)
_update_cache_data.assert_called_once_with()
@mock.patch('modeldict.base.CachedDict._update_cache_data')
@mock.patch('modeldict.base.CachedDict.local_cache_has_expired', mock.Mock(return_value=False))
@mock.patch('modeldict.base.CachedDict.local_cache_is_invalid', mock.Mock(return_value=True))
def test_does_not_expire_by_default(self, _update_cache_data):
self.mydict._local_cache = {}
self.mydict._last_checked_for_remote_changes = time.time()
self.mydict._populate()
self.assertFalse(_update_cache_data.called)
def test_is_expired_missing_last_checked_for_remote_changes(self):
self.mydict._last_checked_for_remote_changes = None
self.assertTrue(self.mydict.local_cache_has_expired())
self.assertFalse(self.cache.get.called)
def test_is_expired_last_updated_beyond_timeout(self):
self.mydict._local_last_updated = time.time() - 101
self.assertTrue(self.mydict.local_cache_has_expired())
def test_is_expired_within_bounds(self):
self.mydict._last_checked_for_remote_changes = time.time()
def test_is_not_expired_if_remote_cache_is_old(self):
# set it to an expired time
self.mydict._local_cache = dict(a=1)
self.mydict._local_last_updated = time.time() - 101
self.cache.get.return_value = self.mydict._local_last_updated
result = self.mydict.local_cache_is_invalid()
self.cache.get.assert_called_once_with(self.mydict.remote_cache_last_updated_key)
self.assertFalse(result)
def test_is_expired_if_remote_cache_is_new(self):
# set it to an expired time, but with a local cache
self.mydict._local_cache = dict(a=1)
self.mydict._last_checked_for_remote_changes = time.time() - 101
self.cache.get.return_value = time.time()
result = self.mydict.local_cache_is_invalid()
self.cache.get.assert_called_once_with(
self.mydict.remote_cache_last_updated_key
)
self.assertEquals(result, True)
def test_setitem_not_implemented(self):
d = CachedDict()
with pytest.raises(NotImplementedError):
d['x'] = 'foo'
def setUp(self):
self.cache = mock.Mock()
self.mydict = CachedDict(timeout=100, cache=self.cache)
class CachedDictTest(TestCase):
def setUp(self):
self.cache = mock.Mock()
self.mydict = CachedDict(timeout=100, cache=self.cache)
@mock.patch('modeldict.base.CachedDict._update_cache_data')
@mock.patch('modeldict.base.CachedDict.local_cache_has_expired',
mock.Mock(return_value=True))
@mock.patch('modeldict.base.CachedDict.local_cache_is_invalid',
mock.Mock(return_value=False))
def test_expired_does_update_data(self, _update_cache_data):
self.mydict._local_cache = {}
self.mydict._last_checked_for_remote_changes = time.time()
self.mydict._populate()
self.assertFalse(_update_cache_data.called)
@mock.patch('modeldict.base.CachedDict._update_cache_data')
@mock.patch('modeldict.base.CachedDict.local_cache_has_expired',
mock.Mock(return_value=False))
@mock.patch('modeldict.base.CachedDict.local_cache_is_invalid',
mock.Mock(return_value=True))
def test_reset_does_expire(self, _update_cache_data):
self.mydict._local_cache = {}
self.mydict._last_checked_for_remote_changes = time.time()
self.mydict._populate(reset=True)
_update_cache_data.assert_called_once_with()
@mock.patch('modeldict.base.CachedDict._update_cache_data')
@mock.patch('modeldict.base.CachedDict.local_cache_has_expired',
mock.Mock(return_value=False))
@mock.patch('modeldict.base.CachedDict.local_cache_is_invalid',
mock.Mock(return_value=True))
def test_does_not_expire_by_default(self, _update_cache_data):
self.mydict._local_cache = {}
self.mydict._last_checked_for_remote_changes = time.time()
self.mydict._populate()
self.assertFalse(_update_cache_data.called)
def test_is_expired_missing_last_checked_for_remote_changes(self):
self.mydict._last_checked_for_remote_changes = None
self.assertTrue(self.mydict.local_cache_has_expired())
self.assertFalse(self.cache.get.called)
def test_is_expired_last_updated_beyond_timeout(self):
self.mydict._local_last_updated = time.time() - 101
self.assertTrue(self.mydict.local_cache_has_expired())
def test_is_expired_within_bounds(self):
self.mydict._last_checked_for_remote_changes = time.time()
def test_is_not_expired_if_remote_cache_is_old(self):
# set it to an expired time
self.mydict._local_cache = dict(a=1)
self.mydict._local_last_updated = time.time() - 101
self.cache.get.return_value = self.mydict._local_last_updated
result = self.mydict.local_cache_is_invalid()
self.cache.get.assert_called_once_with(
self.mydict.remote_cache_last_updated_key)
self.assertFalse(result)
def test_is_expired_if_remote_cache_is_new(self):
# set it to an expired time, but with a local cache
self.mydict._local_cache = dict(a=1)
self.mydict._last_checked_for_remote_changes = time.time() - 101
self.cache.get.return_value = time.time()
result = self.mydict.local_cache_is_invalid()
self.cache.get.assert_called_once_with(
self.mydict.remote_cache_last_updated_key)
self.assertEquals(result, True)
