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Add type hints to test_descriptors. (#15659)
Require type hints in test_descriptors and add missing ones.
This commit is contained in:
Patrick Cloke
GitHub
parent
c7e9c1d5ae
commit
ca5c4be921
3 changed files with 105 additions and 96 deletions
1
changelog.d/15659.misc
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1
changelog.d/15659.misc
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@ -0,0 +1 @@
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Improve type hints.
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3
mypy.ini
3
mypy.ini
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@ -32,9 +32,6 @@ warn_unused_ignores = False
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[mypy-synapse.util.caches.treecache]
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disallow_untyped_defs = False
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[mypy-tests.util.caches.test_descriptors]
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disallow_untyped_defs = False
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;; Dependencies without annotations
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;; Before ignoring a module, check to see if type stubs are available.
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;; The `typeshed` project maintains stubs here:
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@ -13,7 +13,18 @@
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import logging
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from typing import Iterable, Set, Tuple, cast
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from typing import (
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Any,
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Dict,
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Generator,
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Iterable,
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List,
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NoReturn,
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Optional,
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Set,
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Tuple,
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cast,
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)
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from unittest import mock
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from twisted.internet import defer, reactor
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@ -29,7 +40,7 @@ from synapse.logging.context import (
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make_deferred_yieldable,
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)
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from synapse.util.caches import descriptors
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from synapse.util.caches.descriptors import cached, cachedList
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from synapse.util.caches.descriptors import _CacheContext, cached, cachedList
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from tests import unittest
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from tests.test_utils import get_awaitable_result
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@ -37,21 +48,21 @@ from tests.test_utils import get_awaitable_result
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logger = logging.getLogger(__name__)
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def run_on_reactor():
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d: "Deferred[int]" = defer.Deferred()
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def run_on_reactor() -> "Deferred[int]":
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d: "Deferred[int]" = Deferred()
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cast(IReactorTime, reactor).callLater(0, d.callback, 0)
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return make_deferred_yieldable(d)
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class DescriptorTestCase(unittest.TestCase):
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@defer.inlineCallbacks
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def test_cache(self):
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def test_cache(self) -> Generator["Deferred[Any]", object, None]:
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class Cls:
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def __init__(self):
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def __init__(self) -> None:
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self.mock = mock.Mock()
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@descriptors.cached()
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def fn(self, arg1, arg2):
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def fn(self, arg1: int, arg2: int) -> str:
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return self.mock(arg1, arg2)
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obj = Cls()
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@ -77,15 +88,15 @@ class DescriptorTestCase(unittest.TestCase):
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obj.mock.assert_not_called()
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@defer.inlineCallbacks
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def test_cache_num_args(self):
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def test_cache_num_args(self) -> Generator["Deferred[Any]", object, None]:
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"""Only the first num_args arguments should matter to the cache"""
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class Cls:
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def __init__(self):
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def __init__(self) -> None:
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self.mock = mock.Mock()
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@descriptors.cached(num_args=1)
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def fn(self, arg1, arg2):
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def fn(self, arg1: int, arg2: int) -> mock.Mock:
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return self.mock(arg1, arg2)
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obj = Cls()
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@ -111,7 +122,7 @@ class DescriptorTestCase(unittest.TestCase):
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obj.mock.assert_not_called()
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@defer.inlineCallbacks
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def test_cache_uncached_args(self):
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def test_cache_uncached_args(self) -> Generator["Deferred[Any]", object, None]:
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"""
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Only the arguments not named in uncached_args should matter to the cache
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@ -123,10 +134,10 @@ class DescriptorTestCase(unittest.TestCase):
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# Note that it is important that this is not the last argument to
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# test behaviour of skipping arguments properly.
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@descriptors.cached(uncached_args=("arg2",))
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def fn(self, arg1, arg2, arg3):
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def fn(self, arg1: int, arg2: int, arg3: int) -> str:
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return self.mock(arg1, arg2, arg3)
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def __init__(self):
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def __init__(self) -> None:
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self.mock = mock.Mock()
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obj = Cls()
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@ -152,15 +163,15 @@ class DescriptorTestCase(unittest.TestCase):
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obj.mock.assert_not_called()
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@defer.inlineCallbacks
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def test_cache_kwargs(self):
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def test_cache_kwargs(self) -> Generator["Deferred[Any]", object, None]:
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"""Test that keyword arguments are treated properly"""
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class Cls:
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def __init__(self):
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def __init__(self) -> None:
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self.mock = mock.Mock()
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@descriptors.cached()
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def fn(self, arg1, kwarg1=2):
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def fn(self, arg1: int, kwarg1: int = 2) -> str:
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return self.mock(arg1, kwarg1=kwarg1)
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obj = Cls()
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@ -188,12 +199,12 @@ class DescriptorTestCase(unittest.TestCase):
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self.assertEqual(r, "fish")
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obj.mock.assert_not_called()
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def test_cache_with_sync_exception(self):
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def test_cache_with_sync_exception(self) -> None:
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"""If the wrapped function throws synchronously, things should continue to work"""
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class Cls:
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@cached()
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def fn(self, arg1):
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def fn(self, arg1: int) -> NoReturn:
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raise SynapseError(100, "mai spoon iz too big!!1")
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obj = Cls()
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@ -209,15 +220,15 @@ class DescriptorTestCase(unittest.TestCase):
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d = obj.fn(1)
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self.failureResultOf(d, SynapseError)
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def test_cache_with_async_exception(self):
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def test_cache_with_async_exception(self) -> None:
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"""The wrapped function returns a failure"""
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class Cls:
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result = None
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result: Optional[Deferred] = None
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call_count = 0
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@cached()
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def fn(self, arg1):
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def fn(self, arg1: int) -> Optional[Deferred]:
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self.call_count += 1
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return self.result
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@ -225,7 +236,7 @@ class DescriptorTestCase(unittest.TestCase):
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callbacks: Set[str] = set()
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# set off an asynchronous request
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origin_d: Deferred = defer.Deferred()
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origin_d: Deferred = Deferred()
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obj.result = origin_d
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d1 = obj.fn(1, on_invalidate=lambda: callbacks.add("d1"))
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@ -260,17 +271,17 @@ class DescriptorTestCase(unittest.TestCase):
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self.assertEqual(self.successResultOf(d3), 100)
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self.assertEqual(obj.call_count, 2)
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def test_cache_logcontexts(self):
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def test_cache_logcontexts(self) -> Deferred:
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"""Check that logcontexts are set and restored correctly when
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using the cache."""
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complete_lookup: Deferred = defer.Deferred()
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complete_lookup: Deferred = Deferred()
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class Cls:
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@descriptors.cached()
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def fn(self, arg1):
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def fn(self, arg1: int) -> "Deferred[int]":
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@defer.inlineCallbacks
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def inner_fn():
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def inner_fn() -> Generator["Deferred[object]", object, int]:
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with PreserveLoggingContext():
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yield complete_lookup
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return 1
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@ -278,13 +289,13 @@ class DescriptorTestCase(unittest.TestCase):
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return inner_fn()
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@defer.inlineCallbacks
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def do_lookup():
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def do_lookup() -> Generator["Deferred[Any]", object, int]:
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with LoggingContext("c1") as c1:
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r = yield obj.fn(1)
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self.assertEqual(current_context(), c1)
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return r
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return cast(int, r)
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def check_result(r):
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def check_result(r: int) -> None:
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self.assertEqual(r, 1)
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obj = Cls()
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@ -304,15 +315,15 @@ class DescriptorTestCase(unittest.TestCase):
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return defer.gatherResults([d1, d2])
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def test_cache_logcontexts_with_exception(self):
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def test_cache_logcontexts_with_exception(self) -> "Deferred[None]":
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"""Check that the cache sets and restores logcontexts correctly when
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the lookup function throws an exception"""
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class Cls:
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@descriptors.cached()
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def fn(self, arg1):
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def fn(self, arg1: int) -> Deferred:
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@defer.inlineCallbacks
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def inner_fn():
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def inner_fn() -> Generator["Deferred[Any]", object, NoReturn]:
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# we want this to behave like an asynchronous function
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yield run_on_reactor()
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raise SynapseError(400, "blah")
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@ -320,7 +331,7 @@ class DescriptorTestCase(unittest.TestCase):
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return inner_fn()
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@defer.inlineCallbacks
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def do_lookup():
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def do_lookup() -> Generator["Deferred[object]", object, None]:
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with LoggingContext("c1") as c1:
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try:
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d = obj.fn(1)
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@ -347,13 +358,13 @@ class DescriptorTestCase(unittest.TestCase):
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return d1
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@defer.inlineCallbacks
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def test_cache_default_args(self):
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def test_cache_default_args(self) -> Generator["Deferred[Any]", object, None]:
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class Cls:
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def __init__(self):
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def __init__(self) -> None:
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self.mock = mock.Mock()
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@descriptors.cached()
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def fn(self, arg1, arg2=2, arg3=3):
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def fn(self, arg1: int, arg2: int = 2, arg3: int = 3) -> str:
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return self.mock(arg1, arg2, arg3)
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obj = Cls()
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@ -384,13 +395,13 @@ class DescriptorTestCase(unittest.TestCase):
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self.assertEqual(r, "chips")
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obj.mock.assert_not_called()
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def test_cache_iterable(self):
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def test_cache_iterable(self) -> None:
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class Cls:
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def __init__(self):
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def __init__(self) -> None:
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self.mock = mock.Mock()
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@descriptors.cached(iterable=True)
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def fn(self, arg1, arg2):
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def fn(self, arg1: int, arg2: int) -> List[str]:
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return self.mock(arg1, arg2)
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obj = Cls()
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@ -417,12 +428,12 @@ class DescriptorTestCase(unittest.TestCase):
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self.assertEqual(r.result, ["chips"])
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obj.mock.assert_not_called()
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def test_cache_iterable_with_sync_exception(self):
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def test_cache_iterable_with_sync_exception(self) -> None:
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"""If the wrapped function throws synchronously, things should continue to work"""
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class Cls:
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@descriptors.cached(iterable=True)
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def fn(self, arg1):
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def fn(self, arg1: int) -> NoReturn:
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raise SynapseError(100, "mai spoon iz too big!!1")
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obj = Cls()
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@ -438,20 +449,20 @@ class DescriptorTestCase(unittest.TestCase):
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d = obj.fn(1)
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self.failureResultOf(d, SynapseError)
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def test_invalidate_cascade(self):
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def test_invalidate_cascade(self) -> None:
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"""Invalidations should cascade up through cache contexts"""
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class Cls:
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@cached(cache_context=True)
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async def func1(self, key, cache_context):
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async def func1(self, key: str, cache_context: _CacheContext) -> int:
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return await self.func2(key, on_invalidate=cache_context.invalidate)
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@cached(cache_context=True)
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async def func2(self, key, cache_context):
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async def func2(self, key: str, cache_context: _CacheContext) -> int:
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return await self.func3(key, on_invalidate=cache_context.invalidate)
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@cached(cache_context=True)
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async def func3(self, key, cache_context):
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async def func3(self, key: str, cache_context: _CacheContext) -> int:
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self.invalidate = cache_context.invalidate
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return 42
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@ -463,13 +474,13 @@ class DescriptorTestCase(unittest.TestCase):
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obj.invalidate()
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top_invalidate.assert_called_once()
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def test_cancel(self):
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def test_cancel(self) -> None:
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"""Test that cancelling a lookup does not cancel other lookups"""
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complete_lookup: "Deferred[None]" = Deferred()
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class Cls:
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@cached()
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async def fn(self, arg1):
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async def fn(self, arg1: int) -> str:
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await complete_lookup
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return str(arg1)
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@ -488,7 +499,7 @@ class DescriptorTestCase(unittest.TestCase):
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self.failureResultOf(d1, CancelledError)
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self.assertEqual(d2.result, "123")
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def test_cancel_logcontexts(self):
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def test_cancel_logcontexts(self) -> None:
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"""Test that cancellation does not break logcontexts.
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* The `CancelledError` must be raised with the correct logcontext.
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@ -501,14 +512,14 @@ class DescriptorTestCase(unittest.TestCase):
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inner_context_was_finished = False
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@cached()
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async def fn(self, arg1):
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async def fn(self, arg1: int) -> str:
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await make_deferred_yieldable(complete_lookup)
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self.inner_context_was_finished = current_context().finished
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return str(arg1)
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obj = Cls()
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async def do_lookup():
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async def do_lookup() -> None:
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with LoggingContext("c1") as c1:
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try:
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await obj.fn(123)
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@ -542,10 +553,10 @@ class CacheDecoratorTestCase(unittest.HomeserverTestCase):
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"""
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@defer.inlineCallbacks
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def test_passthrough(self):
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def test_passthrough(self) -> Generator["Deferred[Any]", object, None]:
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class A:
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@cached()
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def func(self, key):
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def func(self, key: str) -> str:
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return key
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a = A()
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@ -554,12 +565,12 @@ class CacheDecoratorTestCase(unittest.HomeserverTestCase):
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self.assertEqual((yield a.func("bar")), "bar")
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@defer.inlineCallbacks
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def test_hit(self):
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def test_hit(self) -> Generator["Deferred[Any]", object, None]:
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callcount = [0]
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class A:
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@cached()
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def func(self, key):
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def func(self, key: str) -> str:
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callcount[0] += 1
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return key
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@ -572,12 +583,12 @@ class CacheDecoratorTestCase(unittest.HomeserverTestCase):
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self.assertEqual(callcount[0], 1)
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@defer.inlineCallbacks
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def test_invalidate(self):
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def test_invalidate(self) -> Generator["Deferred[Any]", object, None]:
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callcount = [0]
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class A:
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@cached()
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def func(self, key):
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def func(self, key: str) -> str:
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callcount[0] += 1
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return key
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@ -592,21 +603,21 @@ class CacheDecoratorTestCase(unittest.HomeserverTestCase):
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self.assertEqual(callcount[0], 2)
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def test_invalidate_missing(self):
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def test_invalidate_missing(self) -> None:
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class A:
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@cached()
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def func(self, key):
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def func(self, key: str) -> str:
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return key
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A().func.invalidate(("what",))
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@defer.inlineCallbacks
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def test_max_entries(self):
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def test_max_entries(self) -> Generator["Deferred[Any]", object, None]:
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callcount = [0]
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class A:
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@cached(max_entries=10)
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def func(self, key):
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def func(self, key: int) -> int:
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callcount[0] += 1
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return key
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@ -626,14 +637,14 @@ class CacheDecoratorTestCase(unittest.HomeserverTestCase):
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callcount[0] >= 14, msg="Expected callcount >= 14, got %d" % (callcount[0])
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)
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def test_prefill(self):
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def test_prefill(self) -> None:
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callcount = [0]
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d = defer.succeed(123)
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class A:
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@cached()
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def func(self, key):
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def func(self, key: str) -> "Deferred[int]":
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callcount[0] += 1
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return d
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@ -645,18 +656,18 @@ class CacheDecoratorTestCase(unittest.HomeserverTestCase):
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self.assertEqual(callcount[0], 0)
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@defer.inlineCallbacks
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def test_invalidate_context(self):
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def test_invalidate_context(self) -> Generator["Deferred[Any]", object, None]:
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callcount = [0]
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callcount2 = [0]
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class A:
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@cached()
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def func(self, key):
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def func(self, key: str) -> str:
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callcount[0] += 1
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return key
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@cached(cache_context=True)
|
||||
def func2(self, key, cache_context):
|
||||
def func2(self, key: str, cache_context: _CacheContext) -> "Deferred[str]":
|
||||
callcount2[0] += 1
|
||||
return self.func(key, on_invalidate=cache_context.invalidate)
|
||||
|
||||
|
|
@ -678,18 +689,18 @@ class CacheDecoratorTestCase(unittest.HomeserverTestCase):
|
|||
self.assertEqual(callcount2[0], 2)
|
||||
|
||||
@defer.inlineCallbacks
|
||||
def test_eviction_context(self):
|
||||
def test_eviction_context(self) -> Generator["Deferred[Any]", object, None]:
|
||||
callcount = [0]
|
||||
callcount2 = [0]
|
||||
|
||||
class A:
|
||||
@cached(max_entries=2)
|
||||
def func(self, key):
|
||||
def func(self, key: str) -> str:
|
||||
callcount[0] += 1
|
||||
return key
|
||||
|
||||
@cached(cache_context=True)
|
||||
def func2(self, key, cache_context):
|
||||
def func2(self, key: str, cache_context: _CacheContext) -> "Deferred[str]":
|
||||
callcount2[0] += 1
|
||||
return self.func(key, on_invalidate=cache_context.invalidate)
|
||||
|
||||
|
|
@ -715,18 +726,18 @@ class CacheDecoratorTestCase(unittest.HomeserverTestCase):
|
|||
self.assertEqual(callcount2[0], 3)
|
||||
|
||||
@defer.inlineCallbacks
|
||||
def test_double_get(self):
|
||||
def test_double_get(self) -> Generator["Deferred[Any]", object, None]:
|
||||
callcount = [0]
|
||||
callcount2 = [0]
|
||||
|
||||
class A:
|
||||
@cached()
|
||||
def func(self, key):
|
||||
def func(self, key: str) -> str:
|
||||
callcount[0] += 1
|
||||
return key
|
||||
|
||||
@cached(cache_context=True)
|
||||
def func2(self, key, cache_context):
|
||||
def func2(self, key: str, cache_context: _CacheContext) -> "Deferred[str]":
|
||||
callcount2[0] += 1
|
||||
return self.func(key, on_invalidate=cache_context.invalidate)
|
||||
|
||||
|
|
@ -763,17 +774,17 @@ class CacheDecoratorTestCase(unittest.HomeserverTestCase):
|
|||
|
||||
class CachedListDescriptorTestCase(unittest.TestCase):
|
||||
@defer.inlineCallbacks
|
||||
def test_cache(self):
|
||||
def test_cache(self) -> Generator["Deferred[Any]", object, None]:
|
||||
class Cls:
|
||||
def __init__(self):
|
||||
def __init__(self) -> None:
|
||||
self.mock = mock.Mock()
|
||||
|
||||
@descriptors.cached()
|
||||
def fn(self, arg1, arg2):
|
||||
def fn(self, arg1: int, arg2: int) -> None:
|
||||
pass
|
||||
|
||||
@descriptors.cachedList(cached_method_name="fn", list_name="args1")
|
||||
async def list_fn(self, args1, arg2):
|
||||
async def list_fn(self, args1: Iterable[int], arg2: int) -> Dict[int, str]:
|
||||
context = current_context()
|
||||
assert isinstance(context, LoggingContext)
|
||||
assert context.name == "c1"
|
||||
|
|
@ -824,19 +835,19 @@ class CachedListDescriptorTestCase(unittest.TestCase):
|
|||
obj.mock.assert_called_once_with({40}, 2)
|
||||
self.assertEqual(r, {10: "fish", 40: "gravy"})
|
||||
|
||||
def test_concurrent_lookups(self):
|
||||
def test_concurrent_lookups(self) -> None:
|
||||
"""All concurrent lookups should get the same result"""
|
||||
|
||||
class Cls:
|
||||
def __init__(self):
|
||||
def __init__(self) -> None:
|
||||
self.mock = mock.Mock()
|
||||
|
||||
@descriptors.cached()
|
||||
def fn(self, arg1):
|
||||
def fn(self, arg1: int) -> None:
|
||||
pass
|
||||
|
||||
@descriptors.cachedList(cached_method_name="fn", list_name="args1")
|
||||
def list_fn(self, args1) -> "Deferred[dict]":
|
||||
def list_fn(self, args1: List[int]) -> "Deferred[dict]":
|
||||
return self.mock(args1)
|
||||
|
||||
obj = Cls()
|
||||
|
|
@ -867,19 +878,19 @@ class CachedListDescriptorTestCase(unittest.TestCase):
|
|||
self.assertEqual(self.successResultOf(d3), {10: "peas"})
|
||||
|
||||
@defer.inlineCallbacks
|
||||
def test_invalidate(self):
|
||||
def test_invalidate(self) -> Generator["Deferred[Any]", object, None]:
|
||||
"""Make sure that invalidation callbacks are called."""
|
||||
|
||||
class Cls:
|
||||
def __init__(self):
|
||||
def __init__(self) -> None:
|
||||
self.mock = mock.Mock()
|
||||
|
||||
@descriptors.cached()
|
||||
def fn(self, arg1, arg2):
|
||||
def fn(self, arg1: int, arg2: int) -> None:
|
||||
pass
|
||||
|
||||
@descriptors.cachedList(cached_method_name="fn", list_name="args1")
|
||||
async def list_fn(self, args1, arg2):
|
||||
async def list_fn(self, args1: List[int], arg2: int) -> Dict[int, str]:
|
||||
# we want this to behave like an asynchronous function
|
||||
await run_on_reactor()
|
||||
return self.mock(args1, arg2)
|
||||
|
|
@ -908,17 +919,17 @@ class CachedListDescriptorTestCase(unittest.TestCase):
|
|||
invalidate0.assert_called_once()
|
||||
invalidate1.assert_called_once()
|
||||
|
||||
def test_cancel(self):
|
||||
def test_cancel(self) -> None:
|
||||
"""Test that cancelling a lookup does not cancel other lookups"""
|
||||
complete_lookup: "Deferred[None]" = Deferred()
|
||||
|
||||
class Cls:
|
||||
@cached()
|
||||
def fn(self, arg1):
|
||||
def fn(self, arg1: int) -> None:
|
||||
pass
|
||||
|
||||
@cachedList(cached_method_name="fn", list_name="args")
|
||||
async def list_fn(self, args):
|
||||
async def list_fn(self, args: List[int]) -> Dict[int, str]:
|
||||
await complete_lookup
|
||||
return {arg: str(arg) for arg in args}
|
||||
|
||||
|
|
@ -936,7 +947,7 @@ class CachedListDescriptorTestCase(unittest.TestCase):
|
|||
self.failureResultOf(d1, CancelledError)
|
||||
self.assertEqual(d2.result, {123: "123", 456: "456", 789: "789"})
|
||||
|
||||
def test_cancel_logcontexts(self):
|
||||
def test_cancel_logcontexts(self) -> None:
|
||||
"""Test that cancellation does not break logcontexts.
|
||||
|
||||
* The `CancelledError` must be raised with the correct logcontext.
|
||||
|
|
@ -949,18 +960,18 @@ class CachedListDescriptorTestCase(unittest.TestCase):
|
|||
inner_context_was_finished = False
|
||||
|
||||
@cached()
|
||||
def fn(self, arg1):
|
||||
def fn(self, arg1: int) -> None:
|
||||
pass
|
||||
|
||||
@cachedList(cached_method_name="fn", list_name="args")
|
||||
async def list_fn(self, args):
|
||||
async def list_fn(self, args: List[int]) -> Dict[int, str]:
|
||||
await make_deferred_yieldable(complete_lookup)
|
||||
self.inner_context_was_finished = current_context().finished
|
||||
return {arg: str(arg) for arg in args}
|
||||
|
||||
obj = Cls()
|
||||
|
||||
async def do_lookup():
|
||||
async def do_lookup() -> None:
|
||||
with LoggingContext("c1") as c1:
|
||||
try:
|
||||
await obj.list_fn([123])
|
||||
|
|
@ -983,7 +994,7 @@ class CachedListDescriptorTestCase(unittest.TestCase):
|
|||
)
|
||||
self.assertEqual(current_context(), SENTINEL_CONTEXT)
|
||||
|
||||
def test_num_args_mismatch(self):
|
||||
def test_num_args_mismatch(self) -> None:
|
||||
"""
|
||||
Make sure someone does not accidentally use @cachedList on a method with
|
||||
a mismatch in the number args to the underlying single cache method.
|
||||
|
|
@ -991,14 +1002,14 @@ class CachedListDescriptorTestCase(unittest.TestCase):
|
|||
|
||||
class Cls:
|
||||
@descriptors.cached(tree=True)
|
||||
def fn(self, room_id, event_id):
|
||||
def fn(self, room_id: str, event_id: str) -> None:
|
||||
pass
|
||||
|
||||
# This is wrong ❌. `@cachedList` expects to be given the same number
|
||||
# of arguments as the underlying cached function, just with one of
|
||||
# the arguments being an iterable
|
||||
@descriptors.cachedList(cached_method_name="fn", list_name="keys")
|
||||
def list_fn(self, keys: Iterable[Tuple[str, str]]):
|
||||
def list_fn(self, keys: Iterable[Tuple[str, str]]) -> None:
|
||||
pass
|
||||
|
||||
# Corrected syntax ✅
|
||||
|
|
|
|||
Loading…
Reference in a new issue