mirror of
https://github.com/SickGear/SickGear.git
synced 2024-11-15 17:35:04 +00:00
856 lines
32 KiB
Python
856 lines
32 KiB
Python
"""Support classes for automated testing.
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* `AsyncTestCase` and `AsyncHTTPTestCase`: Subclasses of unittest.TestCase
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with additional support for testing asynchronous (`.IOLoop`-based) code.
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* `ExpectLog`: Make test logs less spammy.
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* `main()`: A simple test runner (wrapper around unittest.main()) with support
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for the tornado.autoreload module to rerun the tests when code changes.
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"""
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import asyncio
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from collections.abc import Generator
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import functools
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import inspect
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import logging
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import os
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import re
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import signal
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import socket
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import sys
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import unittest
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import warnings
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from tornado import gen
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from tornado.httpclient import AsyncHTTPClient, HTTPResponse
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from tornado.httpserver import HTTPServer
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from tornado.ioloop import IOLoop, TimeoutError
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from tornado import netutil
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from tornado.platform.asyncio import AsyncIOMainLoop
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from tornado.process import Subprocess
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from tornado.log import app_log
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from tornado.util import raise_exc_info, basestring_type
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from tornado.web import Application
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import typing
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from typing import Tuple, Any, Callable, Type, Dict, Union, Optional, Coroutine
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from types import TracebackType
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if typing.TYPE_CHECKING:
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_ExcInfoTuple = Tuple[
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Optional[Type[BaseException]], Optional[BaseException], Optional[TracebackType]
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]
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_NON_OWNED_IOLOOPS = AsyncIOMainLoop
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def bind_unused_port(
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reuse_port: bool = False, address: str = "127.0.0.1"
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) -> Tuple[socket.socket, int]:
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"""Binds a server socket to an available port on localhost.
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Returns a tuple (socket, port).
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.. versionchanged:: 4.4
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Always binds to ``127.0.0.1`` without resolving the name
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``localhost``.
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.. versionchanged:: 6.2
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Added optional ``address`` argument to
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override the default "127.0.0.1".
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"""
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sock = netutil.bind_sockets(
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0, address, family=socket.AF_INET, reuse_port=reuse_port
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)[0]
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port = sock.getsockname()[1]
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return sock, port
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def get_async_test_timeout() -> float:
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"""Get the global timeout setting for async tests.
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Returns a float, the timeout in seconds.
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.. versionadded:: 3.1
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"""
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env = os.environ.get("ASYNC_TEST_TIMEOUT")
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if env is not None:
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try:
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return float(env)
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except ValueError:
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pass
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return 5
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class AsyncTestCase(unittest.TestCase):
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"""`~unittest.TestCase` subclass for testing `.IOLoop`-based
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asynchronous code.
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The unittest framework is synchronous, so the test must be
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complete by the time the test method returns. This means that
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asynchronous code cannot be used in quite the same way as usual
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and must be adapted to fit. To write your tests with coroutines,
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decorate your test methods with `tornado.testing.gen_test` instead
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of `tornado.gen.coroutine`.
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This class also provides the (deprecated) `stop()` and `wait()`
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methods for a more manual style of testing. The test method itself
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must call ``self.wait()``, and asynchronous callbacks should call
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``self.stop()`` to signal completion.
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By default, a new `.IOLoop` is constructed for each test and is available
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as ``self.io_loop``. If the code being tested requires a
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reused global `.IOLoop`, subclasses should override `get_new_ioloop` to return it,
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although this is deprecated as of Tornado 6.3.
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The `.IOLoop`'s ``start`` and ``stop`` methods should not be
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called directly. Instead, use `self.stop <stop>` and `self.wait
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<wait>`. Arguments passed to ``self.stop`` are returned from
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``self.wait``. It is possible to have multiple ``wait``/``stop``
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cycles in the same test.
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Example::
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# This test uses coroutine style.
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class MyTestCase(AsyncTestCase):
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@tornado.testing.gen_test
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def test_http_fetch(self):
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client = AsyncHTTPClient()
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response = yield client.fetch("http://www.tornadoweb.org")
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# Test contents of response
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self.assertIn("FriendFeed", response.body)
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# This test uses argument passing between self.stop and self.wait.
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class MyTestCase2(AsyncTestCase):
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def test_http_fetch(self):
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client = AsyncHTTPClient()
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client.fetch("http://www.tornadoweb.org/", self.stop)
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response = self.wait()
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# Test contents of response
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self.assertIn("FriendFeed", response.body)
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"""
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def __init__(self, methodName: str = "runTest") -> None:
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super().__init__(methodName)
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self.__stopped = False
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self.__running = False
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self.__failure = None # type: Optional[_ExcInfoTuple]
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self.__stop_args = None # type: Any
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self.__timeout = None # type: Optional[object]
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# Not used in this class itself, but used by @gen_test
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self._test_generator = None # type: Optional[Union[Generator, Coroutine]]
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def setUp(self) -> None:
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py_ver = sys.version_info
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if ((3, 10, 0) <= py_ver < (3, 10, 9)) or ((3, 11, 0) <= py_ver <= (3, 11, 1)):
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# Early releases in the Python 3.10 and 3.1 series had deprecation
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# warnings that were later reverted; we must suppress them here.
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setup_with_context_manager(self, warnings.catch_warnings())
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warnings.filterwarnings(
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"ignore",
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message="There is no current event loop",
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category=DeprecationWarning,
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module=r"tornado\..*",
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)
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super().setUp()
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if type(self).get_new_ioloop is not AsyncTestCase.get_new_ioloop:
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warnings.warn("get_new_ioloop is deprecated", DeprecationWarning)
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self.io_loop = self.get_new_ioloop()
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asyncio.set_event_loop(self.io_loop.asyncio_loop) # type: ignore[attr-defined]
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def tearDown(self) -> None:
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# Native coroutines tend to produce warnings if they're not
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# allowed to run to completion. It's difficult to ensure that
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# this always happens in tests, so cancel any tasks that are
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# still pending by the time we get here.
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asyncio_loop = self.io_loop.asyncio_loop # type: ignore
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tasks = asyncio.all_tasks(asyncio_loop)
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# Tasks that are done may still appear here and may contain
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# non-cancellation exceptions, so filter them out.
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tasks = [t for t in tasks if not t.done()] # type: ignore
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for t in tasks:
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t.cancel()
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# Allow the tasks to run and finalize themselves (which means
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# raising a CancelledError inside the coroutine). This may
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# just transform the "task was destroyed but it is pending"
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# warning into a "uncaught CancelledError" warning, but
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# catching CancelledErrors in coroutines that may leak is
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# simpler than ensuring that no coroutines leak.
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if tasks:
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done, pending = self.io_loop.run_sync(lambda: asyncio.wait(tasks))
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assert not pending
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# If any task failed with anything but a CancelledError, raise it.
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for f in done:
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try:
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f.result()
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except asyncio.CancelledError:
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pass
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# Clean up Subprocess, so it can be used again with a new ioloop.
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Subprocess.uninitialize()
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asyncio.set_event_loop(None)
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if not isinstance(self.io_loop, _NON_OWNED_IOLOOPS):
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# Try to clean up any file descriptors left open in the ioloop.
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# This avoids leaks, especially when tests are run repeatedly
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# in the same process with autoreload (because curl does not
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# set FD_CLOEXEC on its file descriptors)
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self.io_loop.close(all_fds=True)
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super().tearDown()
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# In case an exception escaped or the StackContext caught an exception
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# when there wasn't a wait() to re-raise it, do so here.
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# This is our last chance to raise an exception in a way that the
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# unittest machinery understands.
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self.__rethrow()
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def get_new_ioloop(self) -> IOLoop:
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"""Returns the `.IOLoop` to use for this test.
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By default, a new `.IOLoop` is created for each test.
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Subclasses may override this method to return
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`.IOLoop.current()` if it is not appropriate to use a new
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`.IOLoop` in each tests (for example, if there are global
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singletons using the default `.IOLoop`) or if a per-test event
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loop is being provided by another system (such as
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``pytest-asyncio``).
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.. deprecated:: 6.3
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This method will be removed in Tornado 7.0.
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"""
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return IOLoop(make_current=False)
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def _handle_exception(
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self, typ: Type[Exception], value: Exception, tb: TracebackType
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) -> bool:
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if self.__failure is None:
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self.__failure = (typ, value, tb)
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else:
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app_log.error(
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"multiple unhandled exceptions in test", exc_info=(typ, value, tb)
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)
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self.stop()
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return True
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def __rethrow(self) -> None:
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if self.__failure is not None:
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failure = self.__failure
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self.__failure = None
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raise_exc_info(failure)
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def run(
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self, result: Optional[unittest.TestResult] = None
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) -> Optional[unittest.TestResult]:
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ret = super().run(result)
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# As a last resort, if an exception escaped super.run() and wasn't
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# re-raised in tearDown, raise it here. This will cause the
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# unittest run to fail messily, but that's better than silently
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# ignoring an error.
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self.__rethrow()
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return ret
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def _callTestMethod(self, method: Callable) -> None:
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"""Run the given test method, raising an error if it returns non-None.
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Failure to decorate asynchronous test methods with ``@gen_test`` can lead to tests
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incorrectly passing.
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Remove this override when Python 3.10 support is dropped. This check (in the form of a
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DeprecationWarning) became a part of the standard library in 3.11.
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Note that ``_callTestMethod`` is not documented as a public interface. However, it is
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present in all supported versions of Python (3.8+), and if it goes away in the future that's
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OK because we can just remove this override as noted above.
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"""
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# Calling super()._callTestMethod would hide the return value, even in python 3.8-3.10
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# where the check isn't being done for us.
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result = method()
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if isinstance(result, Generator) or inspect.iscoroutine(result):
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raise TypeError(
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"Generator and coroutine test methods should be"
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" decorated with tornado.testing.gen_test"
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)
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elif result is not None:
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raise ValueError("Return value from test method ignored: %r" % result)
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def stop(self, _arg: Any = None, **kwargs: Any) -> None:
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"""Stops the `.IOLoop`, causing one pending (or future) call to `wait()`
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to return.
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Keyword arguments or a single positional argument passed to `stop()` are
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saved and will be returned by `wait()`.
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.. deprecated:: 5.1
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`stop` and `wait` are deprecated; use ``@gen_test`` instead.
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"""
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assert _arg is None or not kwargs
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self.__stop_args = kwargs or _arg
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if self.__running:
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self.io_loop.stop()
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self.__running = False
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self.__stopped = True
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def wait(
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self,
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condition: Optional[Callable[..., bool]] = None,
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timeout: Optional[float] = None,
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) -> Any:
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"""Runs the `.IOLoop` until stop is called or timeout has passed.
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In the event of a timeout, an exception will be thrown. The
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default timeout is 5 seconds; it may be overridden with a
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``timeout`` keyword argument or globally with the
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``ASYNC_TEST_TIMEOUT`` environment variable.
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If ``condition`` is not ``None``, the `.IOLoop` will be restarted
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after `stop()` until ``condition()`` returns ``True``.
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.. versionchanged:: 3.1
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Added the ``ASYNC_TEST_TIMEOUT`` environment variable.
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.. deprecated:: 5.1
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`stop` and `wait` are deprecated; use ``@gen_test`` instead.
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"""
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if timeout is None:
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timeout = get_async_test_timeout()
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if not self.__stopped:
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if timeout:
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def timeout_func() -> None:
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try:
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raise self.failureException(
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"Async operation timed out after %s seconds" % timeout
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)
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except Exception:
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self.__failure = sys.exc_info()
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self.stop()
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self.__timeout = self.io_loop.add_timeout(
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self.io_loop.time() + timeout, timeout_func
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)
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while True:
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self.__running = True
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self.io_loop.start()
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if self.__failure is not None or condition is None or condition():
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break
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if self.__timeout is not None:
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self.io_loop.remove_timeout(self.__timeout)
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self.__timeout = None
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assert self.__stopped
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self.__stopped = False
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self.__rethrow()
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result = self.__stop_args
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self.__stop_args = None
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return result
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class AsyncHTTPTestCase(AsyncTestCase):
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"""A test case that starts up an HTTP server.
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Subclasses must override `get_app()`, which returns the
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`tornado.web.Application` (or other `.HTTPServer` callback) to be tested.
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Tests will typically use the provided ``self.http_client`` to fetch
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URLs from this server.
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Example, assuming the "Hello, world" example from the user guide is in
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``hello.py``::
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import hello
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class TestHelloApp(AsyncHTTPTestCase):
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def get_app(self):
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return hello.make_app()
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def test_homepage(self):
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response = self.fetch('/')
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self.assertEqual(response.code, 200)
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self.assertEqual(response.body, 'Hello, world')
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That call to ``self.fetch()`` is equivalent to ::
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self.http_client.fetch(self.get_url('/'), self.stop)
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response = self.wait()
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which illustrates how AsyncTestCase can turn an asynchronous operation,
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like ``http_client.fetch()``, into a synchronous operation. If you need
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to do other asynchronous operations in tests, you'll probably need to use
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``stop()`` and ``wait()`` yourself.
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"""
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def setUp(self) -> None:
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super().setUp()
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sock, port = bind_unused_port()
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self.__port = port
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self.http_client = self.get_http_client()
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self._app = self.get_app()
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self.http_server = self.get_http_server()
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self.http_server.add_sockets([sock])
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def get_http_client(self) -> AsyncHTTPClient:
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return AsyncHTTPClient()
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def get_http_server(self) -> HTTPServer:
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return HTTPServer(self._app, **self.get_httpserver_options())
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def get_app(self) -> Application:
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"""Should be overridden by subclasses to return a
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`tornado.web.Application` or other `.HTTPServer` callback.
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"""
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raise NotImplementedError()
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def fetch(
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self, path: str, raise_error: bool = False, **kwargs: Any
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) -> HTTPResponse:
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"""Convenience method to synchronously fetch a URL.
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The given path will be appended to the local server's host and
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port. Any additional keyword arguments will be passed directly to
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`.AsyncHTTPClient.fetch` (and so could be used to pass
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``method="POST"``, ``body="..."``, etc).
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If the path begins with http:// or https://, it will be treated as a
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full URL and will be fetched as-is.
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If ``raise_error`` is ``True``, a `tornado.httpclient.HTTPError` will
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be raised if the response code is not 200. This is the same behavior
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as the ``raise_error`` argument to `.AsyncHTTPClient.fetch`, but
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the default is ``False`` here (it's ``True`` in `.AsyncHTTPClient`)
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because tests often need to deal with non-200 response codes.
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.. versionchanged:: 5.0
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Added support for absolute URLs.
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.. versionchanged:: 5.1
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Added the ``raise_error`` argument.
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.. deprecated:: 5.1
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This method currently turns any exception into an
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`.HTTPResponse` with status code 599. In Tornado 6.0,
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errors other than `tornado.httpclient.HTTPError` will be
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passed through, and ``raise_error=False`` will only
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suppress errors that would be raised due to non-200
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response codes.
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"""
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if path.lower().startswith(("http://", "https://")):
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url = path
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else:
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url = self.get_url(path)
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return self.io_loop.run_sync(
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lambda: self.http_client.fetch(url, raise_error=raise_error, **kwargs),
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timeout=get_async_test_timeout(),
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)
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def get_httpserver_options(self) -> Dict[str, Any]:
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"""May be overridden by subclasses to return additional
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keyword arguments for the server.
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"""
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return {}
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def get_http_port(self) -> int:
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"""Returns the port used by the server.
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A new port is chosen for each test.
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"""
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return self.__port
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def get_protocol(self) -> str:
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return "http"
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def get_url(self, path: str) -> str:
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"""Returns an absolute url for the given path on the test server."""
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return "%s://127.0.0.1:%s%s" % (self.get_protocol(), self.get_http_port(), path)
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def tearDown(self) -> None:
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self.http_server.stop()
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self.io_loop.run_sync(
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self.http_server.close_all_connections, timeout=get_async_test_timeout()
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)
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self.http_client.close()
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del self.http_server
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del self._app
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super().tearDown()
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class AsyncHTTPSTestCase(AsyncHTTPTestCase):
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"""A test case that starts an HTTPS server.
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Interface is generally the same as `AsyncHTTPTestCase`.
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"""
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def get_http_client(self) -> AsyncHTTPClient:
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return AsyncHTTPClient(force_instance=True, defaults=dict(validate_cert=False))
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def get_httpserver_options(self) -> Dict[str, Any]:
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return dict(ssl_options=self.get_ssl_options())
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def get_ssl_options(self) -> Dict[str, Any]:
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"""May be overridden by subclasses to select SSL options.
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By default includes a self-signed testing certificate.
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"""
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return AsyncHTTPSTestCase.default_ssl_options()
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@staticmethod
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def default_ssl_options() -> Dict[str, Any]:
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# Testing keys were generated with:
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# openssl req -new -keyout tornado/test/test.key \
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# -out tornado/test/test.crt \
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# -nodes -days 3650 -x509 \
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# -subj "/CN=foo.example.com" -addext "subjectAltName = DNS:foo.example.com"
|
|
module_dir = os.path.dirname(__file__)
|
|
return dict(
|
|
certfile=os.path.join(module_dir, "test", "test.crt"),
|
|
keyfile=os.path.join(module_dir, "test", "test.key"),
|
|
)
|
|
|
|
def get_protocol(self) -> str:
|
|
return "https"
|
|
|
|
|
|
@typing.overload
|
|
def gen_test(
|
|
*, timeout: Optional[float] = None
|
|
) -> Callable[[Callable[..., Union[Generator, "Coroutine"]]], Callable[..., None]]:
|
|
pass
|
|
|
|
|
|
@typing.overload # noqa: F811
|
|
def gen_test(func: Callable[..., Union[Generator, "Coroutine"]]) -> Callable[..., None]:
|
|
pass
|
|
|
|
|
|
def gen_test( # noqa: F811
|
|
func: Optional[Callable[..., Union[Generator, "Coroutine"]]] = None,
|
|
timeout: Optional[float] = None,
|
|
) -> Union[
|
|
Callable[..., None],
|
|
Callable[[Callable[..., Union[Generator, "Coroutine"]]], Callable[..., None]],
|
|
]:
|
|
"""Testing equivalent of ``@gen.coroutine``, to be applied to test methods.
|
|
|
|
``@gen.coroutine`` cannot be used on tests because the `.IOLoop` is not
|
|
already running. ``@gen_test`` should be applied to test methods
|
|
on subclasses of `AsyncTestCase`.
|
|
|
|
Example::
|
|
|
|
class MyTest(AsyncHTTPTestCase):
|
|
@gen_test
|
|
def test_something(self):
|
|
response = yield self.http_client.fetch(self.get_url('/'))
|
|
|
|
By default, ``@gen_test`` times out after 5 seconds. The timeout may be
|
|
overridden globally with the ``ASYNC_TEST_TIMEOUT`` environment variable,
|
|
or for each test with the ``timeout`` keyword argument::
|
|
|
|
class MyTest(AsyncHTTPTestCase):
|
|
@gen_test(timeout=10)
|
|
def test_something_slow(self):
|
|
response = yield self.http_client.fetch(self.get_url('/'))
|
|
|
|
Note that ``@gen_test`` is incompatible with `AsyncTestCase.stop`,
|
|
`AsyncTestCase.wait`, and `AsyncHTTPTestCase.fetch`. Use ``yield
|
|
self.http_client.fetch(self.get_url())`` as shown above instead.
|
|
|
|
.. versionadded:: 3.1
|
|
The ``timeout`` argument and ``ASYNC_TEST_TIMEOUT`` environment
|
|
variable.
|
|
|
|
.. versionchanged:: 4.0
|
|
The wrapper now passes along ``*args, **kwargs`` so it can be used
|
|
on functions with arguments.
|
|
|
|
"""
|
|
if timeout is None:
|
|
timeout = get_async_test_timeout()
|
|
|
|
def wrap(f: Callable[..., Union[Generator, "Coroutine"]]) -> Callable[..., None]:
|
|
# Stack up several decorators to allow us to access the generator
|
|
# object itself. In the innermost wrapper, we capture the generator
|
|
# and save it in an attribute of self. Next, we run the wrapped
|
|
# function through @gen.coroutine. Finally, the coroutine is
|
|
# wrapped again to make it synchronous with run_sync.
|
|
#
|
|
# This is a good case study arguing for either some sort of
|
|
# extensibility in the gen decorators or cancellation support.
|
|
@functools.wraps(f)
|
|
def pre_coroutine(self, *args, **kwargs):
|
|
# type: (AsyncTestCase, *Any, **Any) -> Union[Generator, Coroutine]
|
|
# Type comments used to avoid pypy3 bug.
|
|
result = f(self, *args, **kwargs)
|
|
if isinstance(result, Generator) or inspect.iscoroutine(result):
|
|
self._test_generator = result
|
|
else:
|
|
self._test_generator = None
|
|
return result
|
|
|
|
if inspect.iscoroutinefunction(f):
|
|
coro = pre_coroutine
|
|
else:
|
|
coro = gen.coroutine(pre_coroutine) # type: ignore[assignment]
|
|
|
|
@functools.wraps(coro)
|
|
def post_coroutine(self, *args, **kwargs):
|
|
# type: (AsyncTestCase, *Any, **Any) -> None
|
|
try:
|
|
return self.io_loop.run_sync(
|
|
functools.partial(coro, self, *args, **kwargs), timeout=timeout
|
|
)
|
|
except TimeoutError as e:
|
|
# run_sync raises an error with an unhelpful traceback.
|
|
# If the underlying generator is still running, we can throw the
|
|
# exception back into it so the stack trace is replaced by the
|
|
# point where the test is stopped. The only reason the generator
|
|
# would not be running would be if it were cancelled, which means
|
|
# a native coroutine, so we can rely on the cr_running attribute.
|
|
if self._test_generator is not None and getattr(
|
|
self._test_generator, "cr_running", True
|
|
):
|
|
self._test_generator.throw(e)
|
|
# In case the test contains an overly broad except
|
|
# clause, we may get back here.
|
|
# Coroutine was stopped or didn't raise a useful stack trace,
|
|
# so re-raise the original exception which is better than nothing.
|
|
raise
|
|
|
|
return post_coroutine
|
|
|
|
if func is not None:
|
|
# Used like:
|
|
# @gen_test
|
|
# def f(self):
|
|
# pass
|
|
return wrap(func)
|
|
else:
|
|
# Used like @gen_test(timeout=10)
|
|
return wrap
|
|
|
|
|
|
# Without this attribute, nosetests will try to run gen_test as a test
|
|
# anywhere it is imported.
|
|
gen_test.__test__ = False # type: ignore
|
|
|
|
|
|
class ExpectLog(logging.Filter):
|
|
"""Context manager to capture and suppress expected log output.
|
|
|
|
Useful to make tests of error conditions less noisy, while still
|
|
leaving unexpected log entries visible. *Not thread safe.*
|
|
|
|
The attribute ``logged_stack`` is set to ``True`` if any exception
|
|
stack trace was logged.
|
|
|
|
Usage::
|
|
|
|
with ExpectLog('tornado.application', "Uncaught exception"):
|
|
error_response = self.fetch("/some_page")
|
|
|
|
.. versionchanged:: 4.3
|
|
Added the ``logged_stack`` attribute.
|
|
"""
|
|
|
|
def __init__(
|
|
self,
|
|
logger: Union[logging.Logger, basestring_type],
|
|
regex: str,
|
|
required: bool = True,
|
|
level: Optional[int] = None,
|
|
) -> None:
|
|
"""Constructs an ExpectLog context manager.
|
|
|
|
:param logger: Logger object (or name of logger) to watch. Pass an
|
|
empty string to watch the root logger.
|
|
:param regex: Regular expression to match. Any log entries on the
|
|
specified logger that match this regex will be suppressed.
|
|
:param required: If true, an exception will be raised if the end of the
|
|
``with`` statement is reached without matching any log entries.
|
|
:param level: A constant from the ``logging`` module indicating the
|
|
expected log level. If this parameter is provided, only log messages
|
|
at this level will be considered to match. Additionally, the
|
|
supplied ``logger`` will have its level adjusted if necessary (for
|
|
the duration of the ``ExpectLog`` to enable the expected message.
|
|
|
|
.. versionchanged:: 6.1
|
|
Added the ``level`` parameter.
|
|
|
|
.. deprecated:: 6.3
|
|
In Tornado 7.0, only ``WARNING`` and higher logging levels will be
|
|
matched by default. To match ``INFO`` and lower levels, the ``level``
|
|
argument must be used. This is changing to minimize differences
|
|
between ``tornado.testing.main`` (which enables ``INFO`` logs by
|
|
default) and most other test runners (including those in IDEs)
|
|
which have ``INFO`` logs disabled by default.
|
|
"""
|
|
if isinstance(logger, basestring_type):
|
|
logger = logging.getLogger(logger)
|
|
self.logger = logger
|
|
self.regex = re.compile(regex)
|
|
self.required = required
|
|
# matched and deprecated_level_matched are a counter for the respective event.
|
|
self.matched = 0
|
|
self.deprecated_level_matched = 0
|
|
self.logged_stack = False
|
|
self.level = level
|
|
self.orig_level = None # type: Optional[int]
|
|
|
|
def filter(self, record: logging.LogRecord) -> bool:
|
|
if record.exc_info:
|
|
self.logged_stack = True
|
|
message = record.getMessage()
|
|
if self.regex.match(message):
|
|
if self.level is None and record.levelno < logging.WARNING:
|
|
# We're inside the logging machinery here so generating a DeprecationWarning
|
|
# here won't be reported cleanly (if warnings-as-errors is enabled, the error
|
|
# just gets swallowed by the logging module), and even if it were it would
|
|
# have the wrong stack trace. Just remember this fact and report it in
|
|
# __exit__ instead.
|
|
self.deprecated_level_matched += 1
|
|
if self.level is not None and record.levelno != self.level:
|
|
app_log.warning(
|
|
"Got expected log message %r at unexpected level (%s vs %s)"
|
|
% (message, logging.getLevelName(self.level), record.levelname)
|
|
)
|
|
return True
|
|
self.matched += 1
|
|
return False
|
|
return True
|
|
|
|
def __enter__(self) -> "ExpectLog":
|
|
if self.level is not None and self.level < self.logger.getEffectiveLevel():
|
|
self.orig_level = self.logger.level
|
|
self.logger.setLevel(self.level)
|
|
self.logger.addFilter(self)
|
|
return self
|
|
|
|
def __exit__(
|
|
self,
|
|
typ: "Optional[Type[BaseException]]",
|
|
value: Optional[BaseException],
|
|
tb: Optional[TracebackType],
|
|
) -> None:
|
|
if self.orig_level is not None:
|
|
self.logger.setLevel(self.orig_level)
|
|
self.logger.removeFilter(self)
|
|
if not typ and self.required and not self.matched:
|
|
raise Exception("did not get expected log message")
|
|
if (
|
|
not typ
|
|
and self.required
|
|
and (self.deprecated_level_matched >= self.matched)
|
|
):
|
|
warnings.warn(
|
|
"ExpectLog matched at INFO or below without level argument",
|
|
DeprecationWarning,
|
|
)
|
|
|
|
|
|
# From https://nedbatchelder.com/blog/201508/using_context_managers_in_test_setup.html
|
|
def setup_with_context_manager(testcase: unittest.TestCase, cm: Any) -> Any:
|
|
"""Use a contextmanager to setUp a test case."""
|
|
val = cm.__enter__()
|
|
testcase.addCleanup(cm.__exit__, None, None, None)
|
|
return val
|
|
|
|
|
|
def main(**kwargs: Any) -> None:
|
|
"""A simple test runner.
|
|
|
|
This test runner is essentially equivalent to `unittest.main` from
|
|
the standard library, but adds support for Tornado-style option
|
|
parsing and log formatting. It is *not* necessary to use this
|
|
`main` function to run tests using `AsyncTestCase`; these tests
|
|
are self-contained and can run with any test runner.
|
|
|
|
The easiest way to run a test is via the command line::
|
|
|
|
python -m tornado.testing tornado.test.web_test
|
|
|
|
See the standard library ``unittest`` module for ways in which
|
|
tests can be specified.
|
|
|
|
Projects with many tests may wish to define a test script like
|
|
``tornado/test/runtests.py``. This script should define a method
|
|
``all()`` which returns a test suite and then call
|
|
`tornado.testing.main()`. Note that even when a test script is
|
|
used, the ``all()`` test suite may be overridden by naming a
|
|
single test on the command line::
|
|
|
|
# Runs all tests
|
|
python -m tornado.test.runtests
|
|
# Runs one test
|
|
python -m tornado.test.runtests tornado.test.web_test
|
|
|
|
Additional keyword arguments passed through to ``unittest.main()``.
|
|
For example, use ``tornado.testing.main(verbosity=2)``
|
|
to show many test details as they are run.
|
|
See http://docs.python.org/library/unittest.html#unittest.main
|
|
for full argument list.
|
|
|
|
.. versionchanged:: 5.0
|
|
|
|
This function produces no output of its own; only that produced
|
|
by the `unittest` module (previously it would add a PASS or FAIL
|
|
log message).
|
|
"""
|
|
from tornado.options import define, options, parse_command_line
|
|
|
|
define(
|
|
"exception_on_interrupt",
|
|
type=bool,
|
|
default=True,
|
|
help=(
|
|
"If true (default), ctrl-c raises a KeyboardInterrupt "
|
|
"exception. This prints a stack trace but cannot interrupt "
|
|
"certain operations. If false, the process is more reliably "
|
|
"killed, but does not print a stack trace."
|
|
),
|
|
)
|
|
|
|
# support the same options as unittest's command-line interface
|
|
define("verbose", type=bool)
|
|
define("quiet", type=bool)
|
|
define("failfast", type=bool)
|
|
define("catch", type=bool)
|
|
define("buffer", type=bool)
|
|
|
|
argv = [sys.argv[0]] + parse_command_line(sys.argv)
|
|
|
|
if not options.exception_on_interrupt:
|
|
signal.signal(signal.SIGINT, signal.SIG_DFL)
|
|
|
|
if options.verbose is not None:
|
|
kwargs["verbosity"] = 2
|
|
if options.quiet is not None:
|
|
kwargs["verbosity"] = 0
|
|
if options.failfast is not None:
|
|
kwargs["failfast"] = True
|
|
if options.catch is not None:
|
|
kwargs["catchbreak"] = True
|
|
if options.buffer is not None:
|
|
kwargs["buffer"] = True
|
|
|
|
if __name__ == "__main__" and len(argv) == 1:
|
|
print("No tests specified", file=sys.stderr)
|
|
sys.exit(1)
|
|
# In order to be able to run tests by their fully-qualified name
|
|
# on the command line without importing all tests here,
|
|
# module must be set to None. Python 3.2's unittest.main ignores
|
|
# defaultTest if no module is given (it tries to do its own
|
|
# test discovery, which is incompatible with auto2to3), so don't
|
|
# set module if we're not asking for a specific test.
|
|
if len(argv) > 1:
|
|
unittest.main(module=None, argv=argv, **kwargs) # type: ignore
|
|
else:
|
|
unittest.main(defaultTest="all", argv=argv, **kwargs)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|