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datasette.pm property, closes #2595

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Simon Willison 2025-11-13 10:31:03 -08:00
commit 4b4add4d31
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9
docs/testing_plugins.rst
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@ -283,13 +283,12 @@ Here's a test for that plugin that mocks the HTTPX outbound request:
Registering a plugin for the duration of a test
-----------------------------------------------
When writing tests for plugins you may find it useful to register a test plugin just for the duration of a single test. You can do this using ``pm.register()`` and ``pm.unregister()`` like this:
When writing tests for plugins you may find it useful to register a test plugin just for the duration of a single test. You can do this using ``datasette.pm.register()`` and ``datasette.pm.unregister()`` like this:
.. code-block:: python
from datasette import hookimpl
from datasette.app import Datasette
from datasette.plugins import pm
import pytest
@ -305,14 +304,14 @@ When writing tests for plugins you may find it useful to register a test plugin
(r"^/error$", lambda: 1 / 0),
]
pm.register(TestPlugin(), name="undo")
datasette = Datasette()
try:
# The test implementation goes here
datasette = Datasette()
datasette.pm.register(TestPlugin(), name="undo")
response = await datasette.client.get("/error")
assert response.status_code == 500
finally:
pm.unregister(name="undo")
datasette.pm.unregister(name="undo")
To reuse the same temporary plugin in multiple tests, you can register it inside a fixture in your ``conftest.py`` file like this: