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Add a mechanism for per-test configs (#5657)
It's useful to be able to tweak the homeserver config to be used for each test. This PR adds a mechanism to do so.
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changelog.d/5657.misc
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Add a mechanism for per-test homeserver configuration in the unit tests.
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@ -157,6 +157,21 @@ class HomeserverTestCase(TestCase):
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"""
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"""
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A base TestCase that reduces boilerplate for HomeServer-using test cases.
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A base TestCase that reduces boilerplate for HomeServer-using test cases.
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Defines a setUp method which creates a mock reactor, and instantiates a homeserver
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running on that reactor.
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There are various hooks for modifying the way that the homeserver is instantiated:
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* override make_homeserver, for example by making it pass different parameters into
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setup_test_homeserver.
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* override default_config, to return a modified configuration dictionary for use
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by setup_test_homeserver.
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* On a per-test basis, you can use the @override_config decorator to give a
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dictionary containing additional configuration settings to be added to the basic
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config dict.
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Attributes:
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Attributes:
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servlets (list[function]): List of servlet registration function.
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servlets (list[function]): List of servlet registration function.
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user_id (str): The user ID to assume if auth is hijacked.
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user_id (str): The user ID to assume if auth is hijacked.
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@ -168,6 +183,13 @@ class HomeserverTestCase(TestCase):
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hijack_auth = True
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hijack_auth = True
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needs_threadpool = False
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needs_threadpool = False
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def __init__(self, methodName, *args, **kwargs):
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super().__init__(methodName, *args, **kwargs)
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# see if we have any additional config for this test
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method = getattr(self, methodName)
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self._extra_config = getattr(method, "_extra_config", None)
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def setUp(self):
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def setUp(self):
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"""
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"""
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Set up the TestCase by calling the homeserver constructor, optionally
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Set up the TestCase by calling the homeserver constructor, optionally
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@ -276,7 +298,14 @@ class HomeserverTestCase(TestCase):
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Args:
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Args:
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name (str): The homeserver name/domain.
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name (str): The homeserver name/domain.
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"""
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"""
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return default_config(name)
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config = default_config(name)
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# apply any additional config which was specified via the override_config
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# decorator.
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if self._extra_config is not None:
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config.update(self._extra_config)
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return config
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def prepare(self, reactor, clock, homeserver):
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def prepare(self, reactor, clock, homeserver):
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"""
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"""
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@ -534,3 +563,27 @@ class HomeserverTestCase(TestCase):
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)
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)
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self.render(request)
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self.render(request)
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self.assertEqual(channel.code, 403, channel.result)
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self.assertEqual(channel.code, 403, channel.result)
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def override_config(extra_config):
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"""A decorator which can be applied to test functions to give additional HS config
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For use
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For example:
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class MyTestCase(HomeserverTestCase):
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@override_config({"enable_registration": False, ...})
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def test_foo(self):
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...
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Args:
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extra_config(dict): Additional config settings to be merged into the default
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config dict before instantiating the test homeserver.
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"""
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def decorator(func):
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func._extra_config = extra_config
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return func
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return decorator
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