Rely on backports.entry_points_selectable for forward compatibility with importlib.metadata.

This commit is contained in:
Jason R. Coombs 2021-03-30 17:17:58 -04:00
parent 1d5dd156ab
commit 3d253e07f3
4 changed files with 23 additions and 25 deletions

View file

@ -5,51 +5,47 @@ from flake8._compat import importlib_metadata
from flake8.plugins import manager
@mock.patch.object(importlib_metadata, 'entry_points')
@mock.patch.object(manager, 'entry_points')
def test_calls_entrypoints_on_instantiation(entry_points_mck):
"""Verify that we call entry_points() when we create a manager."""
entry_points_mck.return_value = {}
entry_points_mck.return_value = []
manager.PluginManager(namespace='testing.entrypoints')
entry_points_mck.assert_called_once_with()
entry_points_mck.assert_called_once_with(group='testing.entrypoints')
@mock.patch.object(importlib_metadata, 'entry_points')
@mock.patch.object(manager, 'entry_points')
def test_calls_entrypoints_creates_plugins_automaticaly(entry_points_mck):
"""Verify that we create Plugins on instantiation."""
entry_points_mck.return_value = {
'testing.entrypoints': [
importlib_metadata.EntryPoint('T100', '', None),
importlib_metadata.EntryPoint('T200', '', None),
],
}
entry_points_mck.return_value = [
importlib_metadata.EntryPoint('T100', '', None),
importlib_metadata.EntryPoint('T200', '', None),
]
plugin_mgr = manager.PluginManager(namespace='testing.entrypoints')
entry_points_mck.assert_called_once_with()
entry_points_mck.assert_called_once_with(group='testing.entrypoints')
assert 'T100' in plugin_mgr.plugins
assert 'T200' in plugin_mgr.plugins
assert isinstance(plugin_mgr.plugins['T100'], manager.Plugin)
assert isinstance(plugin_mgr.plugins['T200'], manager.Plugin)
@mock.patch.object(importlib_metadata, 'entry_points')
@mock.patch.object(manager, 'entry_points')
def test_handles_mapping_functions_across_plugins(entry_points_mck):
"""Verify we can use the PluginManager call functions on all plugins."""
entry_points_mck.return_value = {
'testing.entrypoints': [
importlib_metadata.EntryPoint('T100', '', None),
importlib_metadata.EntryPoint('T200', '', None),
],
}
entry_points_mck.return_value = [
importlib_metadata.EntryPoint('T100', '', None),
importlib_metadata.EntryPoint('T200', '', None),
]
plugin_mgr = manager.PluginManager(namespace='testing.entrypoints')
plugins = [plugin_mgr.plugins[name] for name in plugin_mgr.names]
assert list(plugin_mgr.map(lambda x: x)) == plugins
@mock.patch.object(importlib_metadata, 'entry_points')
@mock.patch.object(manager, 'entry_points')
def test_local_plugins(entry_points_mck):
"""Verify PluginManager can load given local plugins."""
entry_points_mck.return_value = {}
entry_points_mck.return_value = []
plugin_mgr = manager.PluginManager(
namespace='testing.entrypoints',
local_plugins=['X = path.to:Plugin']