Files
picard/test/test_plugins.py
Laurent Monin 8ee7759589 Drop PluginPriority in favor of a simple integer and add tests
- Only default value was used in the code
- having an enum for that is rather limiting its use
- add tests for PluginFunctions class
2024-06-11 16:13:57 +02:00

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# -*- coding: utf-8 -*-
#
# Picard, the next-generation MusicBrainz tagger
#
# Copyright (C) 2019-2021 Laurent Monin
# Copyright (C) 2019-2021, 2023 Philipp Wolfer
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
import logging
import os
import sys
import unittest
from unittest.mock import Mock
from test.picardtestcase import PicardTestCase
import picard
from picard.const import USER_PLUGIN_DIR
from picard.plugin import (
PluginFunctions,
PluginWrapper,
_unregister_module_extensions,
)
from picard.pluginmanager import (
PluginManager,
_compatible_api_versions,
_plugin_dirs,
_plugin_name_from_path,
register_plugin_dir,
)
from picard.version import (
Version,
VersionError,
)
# testplugins structure along plugins (zipped or not) structures
#
# ├── module/
# │   └── dummyplugin/
# │   └── __init__.py
# ├── packaged_module/
# │   └── dummyplugin.picard.zip
# │   └── dummyplugin/ # FIXME: correct structure??
# │   └── __init__.py
# │   └── MANIFEST.json # FIXME: format??
# ├── singlefile/
# │   └── dummyplugin.py
# ├── zipped_module/
# │   └── dummyplugin.zip
# │   └── dummyplugin/
# │   └── __init__.py
# └── zipped_singlefile/
# └── dummyplugin.zip
#    └── dummyplugin.py
# module
# packaged_module
# singlefile
# zipped_module
# zipped_singlefile
def _get_test_plugins():
testplugins = {}
testplugins_path = os.path.join('test', 'data', 'testplugins')
for f in os.listdir(testplugins_path):
testplugin = os.path.join(testplugins_path, f)
for e in os.listdir(testplugin):
if e == '__pycache__':
continue
testplugins[f] = os.path.join(testplugin, e)
return testplugins
_testplugins = _get_test_plugins()
def unload_plugin(plugin_name):
"""for testing purposes"""
_unregister_module_extensions(plugin_name)
if hasattr(picard.plugins, plugin_name):
delattr(picard.plugins, plugin_name)
if plugin_name in sys.modules:
del sys.modules[plugin_name]
class TestPicardPluginsCommon(PicardTestCase):
def setUp(self):
super().setUp()
logging.disable(logging.ERROR)
def tearDown(self):
pass
class TestPicardPluginsCommonTmpDir(TestPicardPluginsCommon):
def setUp(self):
super().setUp()
self.tmp_directory = self.mktmpdir()
register_plugin_dir(self.tmp_directory)
class TestPicardPluginManager(TestPicardPluginsCommon):
def test_compatible_api_version(self):
# use first element from picard.api_versions, it should be compatible
api_versions = picard.api_versions[:1]
expected = {Version.from_string(v) for v in api_versions}
result = _compatible_api_versions(api_versions)
self.assertEqual(result, expected)
# pretty sure 0.0 isn't compatible
api_versions = ["0.0"]
expected = set()
result = _compatible_api_versions(api_versions)
self.assertEqual(result, expected)
# buggy version
api_versions = ["0.a"]
with self.assertRaises(VersionError):
result = _compatible_api_versions(api_versions)
def test_plugin_name_from_path(self):
for name, path in _testplugins.items():
self.assertEqual(
_plugin_name_from_path(path), 'dummyplugin',
"failed to get plugin name from %s: %r" % (name, path)
)
class TestPicardPluginsInstall(TestPicardPluginsCommonTmpDir):
def _test_plugin_install(self, name):
plugin_path = _testplugins[name]
pm = PluginManager(plugins_directory=self.tmp_directory)
msg = "install_plugin: %s %r" % (name, plugin_path)
pm.install_plugin(plugin_path)
self.assertEqual(len(pm.plugins), 1, msg)
self.assertEqual(pm.plugins[0].name, 'Dummy plugin', msg)
# if module is properly loaded, this should work
from picard.plugins.dummyplugin import DummyPlugin
DummyPlugin()
# Remove plugin again
pm.remove_plugin('dummyplugin')
unload_plugin('picard.plugins.dummyplugin')
with self.assertRaises(ImportError):
from picard.plugins.dummyplugin import ( # noqa: F811 # pylint: disable=reimported
DummyPlugin,
)
def _test_plugin_install_data(self, name):
# simulate installation from UI using data from picard plugins api web service
with open(_testplugins[name], 'rb') as f:
data = f.read()
pm = PluginManager(plugins_directory=self.tmp_directory)
msg = "install_plugin_data: %s data: %d bytes" % (name, len(data))
pm.install_plugin(None, plugin_name='dummyplugin', plugin_data=data)
self.assertEqual(len(pm.plugins), 1, msg)
self.assertEqual(pm.plugins[0].name, 'Dummy plugin', msg)
# if module is properly loaded, this should work
from picard.plugins.dummyplugin import DummyPlugin
DummyPlugin()
# Remove plugin again
pm.remove_plugin('dummyplugin')
unload_plugin('picard.plugins.dummyplugin')
with self.assertRaises(ImportError):
from picard.plugins.dummyplugin import ( # noqa: F811 # pylint: disable=reimported
DummyPlugin,
)
# module
def test_plugin_install_module(self):
self._test_plugin_install('module')
# packaged_module
# FIXME : not really implemented
@unittest.skipIf(True, "FIXME")
def test_plugin_install_packaged_module(self):
self._test_plugin_install('packaged_module')
# singlefile
def test_plugin_install_packaged_singlefile(self):
self._test_plugin_install('singlefile')
# zipped_module
def test_plugin_install_packaged_zipped_module(self):
self._test_plugin_install('zipped_module')
# zipped_singlefile
def test_plugin_install_packaged_zipped_singlefile(self):
self._test_plugin_install('zipped_singlefile')
# zipped_module from picard plugins ws
def test_plugin_install_zipped_module_data(self):
self._test_plugin_install_data('zipped_module')
# zipped_singlefile from picard plugins ws
def test_plugin_install_zipped_singlefile_data(self):
self._test_plugin_install_data('zipped_singlefile')
def test_plugin_install_no_path_no_plugin_name(self):
pm = PluginManager(plugins_directory=self.tmp_directory)
with self.assertRaises(AssertionError):
pm.install_plugin(None)
class TestPicardPluginsLoad(TestPicardPluginsCommonTmpDir):
def setUp(self):
super().setUp()
self.pm = PluginManager(plugins_directory=self.tmp_directory)
self.src_dir = None
def tearDown(self):
super().tearDown()
unload_plugin('picard.plugins.dummyplugin')
if self.src_dir:
_plugin_dirs.remove(self.src_dir)
def _register_plugin_dir(self, name):
self.src_dir = os.path.dirname(_testplugins[name])
register_plugin_dir(self.src_dir)
def _test_plugin_load_from_directory(self, name):
self._register_plugin_dir(name)
msg = "plugins_load_from_directory: %s %r" % (name, self.src_dir)
self.pm.load_plugins_from_directory(self.src_dir)
self.assertEqual(len(self.pm.plugins), 1, msg)
self.assertEqual(self.pm.plugins[0].name, 'Dummy plugin', msg)
# if module is properly loaded, this should work
from picard.plugins.dummyplugin import DummyPlugin
DummyPlugin()
# singlefile
def test_plugin_load_from_directory_singlefile(self):
self._test_plugin_load_from_directory('singlefile')
# zipped_module
def test_plugin_load_from_directory_zipped_module(self):
self._test_plugin_load_from_directory('zipped_module')
# zipped_singlefile
def test_plugin_load_from_directory_zipped_singlefile(self):
self._test_plugin_load_from_directory('zipped_singlefile')
# module
def test_plugin_load_from_directory_module(self):
self._test_plugin_load_from_directory('module')
def test_plugin_import_error(self):
module_name = 'picard.plugins.dummyplugin'
self.assertIsNone(sys.modules.get(module_name))
self._register_plugin_dir('importerror')
self.pm.load_plugins_from_directory(self.src_dir)
self.assertIsNone(sys.modules.get(module_name))
class TestPluginWrapper(PicardTestCase):
def test_is_user_installed(self):
manifest = {
'PLUGIN_NAME': 'foo'
}
user_plugin = PluginWrapper({}, USER_PLUGIN_DIR, manifest_data=manifest)
self.assertTrue(user_plugin.is_user_installed)
system_plugin = PluginWrapper({}, '/other/path/plugins', manifest_data=manifest)
self.assertFalse(system_plugin.is_user_installed)
class TestPluginFunctions(PicardTestCase):
def setUp(self):
self.set_config_values({
'enabled_plugins': [],
})
def test_register_order(self):
pfs = PluginFunctions(label="test")
self.assertEqual(pfs.functions, {})
pfs.register('m', 'f1', priority=0)
pfs.register('m', 'f2', priority=0)
self.assertEqual(list(pfs._get_functions()), ['f1', 'f2'])
pfs.register('m', 'f3', priority=1)
pfs.register('m', 'f4', priority=-1)
self.assertEqual(list(pfs._get_functions()), ['f3', 'f1', 'f2', 'f4'])
def test_run_args(self):
testfunc1 = Mock()
testfunc2 = Mock()
pfs = PluginFunctions(label="test")
pfs.register('m', testfunc1)
pfs.register('m', testfunc2)
pfs.run(1, k=2)
testfunc1.assert_called_with(1, k=2)
testfunc2.assert_called_with(1, k=2)