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				https://github.com/yt-dlp/yt-dlp.git
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	- Adds `--no-plugin-dirs` to disable plugin loading - `--plugin-dirs` now supports post-processors Authored by: coletdjnz, Grub4K, pukkandan
		
			
				
	
	
		
			247 lines
		
	
	
		
			9.0 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			247 lines
		
	
	
		
			9.0 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
import importlib
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import os
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import shutil
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import sys
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import unittest
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from pathlib import Path
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sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
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TEST_DATA_DIR = Path(os.path.dirname(os.path.abspath(__file__)), 'testdata')
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sys.path.append(str(TEST_DATA_DIR))
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importlib.invalidate_caches()
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from yt_dlp.plugins import (
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    PACKAGE_NAME,
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    PluginSpec,
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    directories,
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    load_plugins,
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    load_all_plugins,
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    register_plugin_spec,
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)
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from yt_dlp.globals import (
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    extractors,
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    postprocessors,
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    plugin_dirs,
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    plugin_ies,
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    plugin_pps,
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    all_plugins_loaded,
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    plugin_specs,
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)
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EXTRACTOR_PLUGIN_SPEC = PluginSpec(
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    module_name='extractor',
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    suffix='IE',
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    destination=extractors,
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    plugin_destination=plugin_ies,
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)
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POSTPROCESSOR_PLUGIN_SPEC = PluginSpec(
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    module_name='postprocessor',
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    suffix='PP',
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    destination=postprocessors,
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    plugin_destination=plugin_pps,
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)
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def reset_plugins():
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    plugin_ies.value = {}
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    plugin_pps.value = {}
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    plugin_dirs.value = ['default']
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    plugin_specs.value = {}
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    all_plugins_loaded.value = False
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    # Clearing override plugins is probably difficult
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    for module_name in tuple(sys.modules):
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        for plugin_type in ('extractor', 'postprocessor'):
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            if module_name.startswith(f'{PACKAGE_NAME}.{plugin_type}.'):
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                del sys.modules[module_name]
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    importlib.invalidate_caches()
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class TestPlugins(unittest.TestCase):
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    TEST_PLUGIN_DIR = TEST_DATA_DIR / PACKAGE_NAME
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    def setUp(self):
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        reset_plugins()
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    def tearDown(self):
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        reset_plugins()
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    def test_directories_containing_plugins(self):
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        self.assertIn(self.TEST_PLUGIN_DIR, map(Path, directories()))
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    def test_extractor_classes(self):
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        plugins_ie = load_plugins(EXTRACTOR_PLUGIN_SPEC)
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        self.assertIn(f'{PACKAGE_NAME}.extractor.normal', sys.modules.keys())
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        self.assertIn('NormalPluginIE', plugins_ie.keys())
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        # don't load modules with underscore prefix
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        self.assertFalse(
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            f'{PACKAGE_NAME}.extractor._ignore' in sys.modules,
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            'loaded module beginning with underscore')
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        self.assertNotIn('IgnorePluginIE', plugins_ie.keys())
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        self.assertNotIn('IgnorePluginIE', plugin_ies.value)
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        # Don't load extractors with underscore prefix
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        self.assertNotIn('_IgnoreUnderscorePluginIE', plugins_ie.keys())
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        self.assertNotIn('_IgnoreUnderscorePluginIE', plugin_ies.value)
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        # Don't load extractors not specified in __all__ (if supplied)
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        self.assertNotIn('IgnoreNotInAllPluginIE', plugins_ie.keys())
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        self.assertNotIn('IgnoreNotInAllPluginIE', plugin_ies.value)
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        self.assertIn('InAllPluginIE', plugins_ie.keys())
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        self.assertIn('InAllPluginIE', plugin_ies.value)
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        # Don't load override extractors
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        self.assertNotIn('OverrideGenericIE', plugins_ie.keys())
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        self.assertNotIn('OverrideGenericIE', plugin_ies.value)
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        self.assertNotIn('_UnderscoreOverrideGenericIE', plugins_ie.keys())
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        self.assertNotIn('_UnderscoreOverrideGenericIE', plugin_ies.value)
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    def test_postprocessor_classes(self):
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        plugins_pp = load_plugins(POSTPROCESSOR_PLUGIN_SPEC)
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        self.assertIn('NormalPluginPP', plugins_pp.keys())
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        self.assertIn(f'{PACKAGE_NAME}.postprocessor.normal', sys.modules.keys())
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        self.assertIn('NormalPluginPP', plugin_pps.value)
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    def test_importing_zipped_module(self):
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        zip_path = TEST_DATA_DIR / 'zipped_plugins.zip'
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        shutil.make_archive(str(zip_path)[:-4], 'zip', str(zip_path)[:-4])
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        sys.path.append(str(zip_path))  # add zip to search paths
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        importlib.invalidate_caches()  # reset the import caches
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        try:
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            for plugin_type in ('extractor', 'postprocessor'):
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                package = importlib.import_module(f'{PACKAGE_NAME}.{plugin_type}')
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                self.assertIn(zip_path / PACKAGE_NAME / plugin_type, map(Path, package.__path__))
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            plugins_ie = load_plugins(EXTRACTOR_PLUGIN_SPEC)
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            self.assertIn('ZippedPluginIE', plugins_ie.keys())
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            plugins_pp = load_plugins(POSTPROCESSOR_PLUGIN_SPEC)
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            self.assertIn('ZippedPluginPP', plugins_pp.keys())
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        finally:
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            sys.path.remove(str(zip_path))
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            os.remove(zip_path)
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            importlib.invalidate_caches()  # reset the import caches
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    def test_reloading_plugins(self):
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        reload_plugins_path = TEST_DATA_DIR / 'reload_plugins'
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        load_plugins(EXTRACTOR_PLUGIN_SPEC)
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        load_plugins(POSTPROCESSOR_PLUGIN_SPEC)
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        # Remove default folder and add reload_plugin path
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        sys.path.remove(str(TEST_DATA_DIR))
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        sys.path.append(str(reload_plugins_path))
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        importlib.invalidate_caches()
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        try:
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            for plugin_type in ('extractor', 'postprocessor'):
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                package = importlib.import_module(f'{PACKAGE_NAME}.{plugin_type}')
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                self.assertIn(reload_plugins_path / PACKAGE_NAME / plugin_type, map(Path, package.__path__))
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            plugins_ie = load_plugins(EXTRACTOR_PLUGIN_SPEC)
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            self.assertIn('NormalPluginIE', plugins_ie.keys())
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            self.assertTrue(
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                plugins_ie['NormalPluginIE'].REPLACED,
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                msg='Reloading has not replaced original extractor plugin')
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            self.assertTrue(
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                extractors.value['NormalPluginIE'].REPLACED,
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                msg='Reloading has not replaced original extractor plugin globally')
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            plugins_pp = load_plugins(POSTPROCESSOR_PLUGIN_SPEC)
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            self.assertIn('NormalPluginPP', plugins_pp.keys())
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            self.assertTrue(plugins_pp['NormalPluginPP'].REPLACED,
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                            msg='Reloading has not replaced original postprocessor plugin')
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            self.assertTrue(
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                postprocessors.value['NormalPluginPP'].REPLACED,
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                msg='Reloading has not replaced original postprocessor plugin globally')
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        finally:
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            sys.path.remove(str(reload_plugins_path))
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            sys.path.append(str(TEST_DATA_DIR))
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            importlib.invalidate_caches()
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    def test_extractor_override_plugin(self):
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        load_plugins(EXTRACTOR_PLUGIN_SPEC)
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        from yt_dlp.extractor.generic import GenericIE
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        self.assertEqual(GenericIE.TEST_FIELD, 'override')
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        self.assertEqual(GenericIE.SECONDARY_TEST_FIELD, 'underscore-override')
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        self.assertEqual(GenericIE.IE_NAME, 'generic+override+underscore-override')
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        importlib.invalidate_caches()
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        #  test that loading a second time doesn't wrap a second time
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        load_plugins(EXTRACTOR_PLUGIN_SPEC)
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        from yt_dlp.extractor.generic import GenericIE
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        self.assertEqual(GenericIE.IE_NAME, 'generic+override+underscore-override')
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    def test_load_all_plugin_types(self):
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        # no plugin specs registered
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        load_all_plugins()
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        self.assertNotIn(f'{PACKAGE_NAME}.extractor.normal', sys.modules.keys())
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        self.assertNotIn(f'{PACKAGE_NAME}.postprocessor.normal', sys.modules.keys())
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        register_plugin_spec(EXTRACTOR_PLUGIN_SPEC)
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        register_plugin_spec(POSTPROCESSOR_PLUGIN_SPEC)
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        load_all_plugins()
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        self.assertTrue(all_plugins_loaded.value)
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        self.assertIn(f'{PACKAGE_NAME}.extractor.normal', sys.modules.keys())
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        self.assertIn(f'{PACKAGE_NAME}.postprocessor.normal', sys.modules.keys())
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    def test_no_plugin_dirs(self):
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        register_plugin_spec(EXTRACTOR_PLUGIN_SPEC)
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        register_plugin_spec(POSTPROCESSOR_PLUGIN_SPEC)
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        plugin_dirs.value = []
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        load_all_plugins()
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        self.assertNotIn(f'{PACKAGE_NAME}.extractor.normal', sys.modules.keys())
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        self.assertNotIn(f'{PACKAGE_NAME}.postprocessor.normal', sys.modules.keys())
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    def test_set_plugin_dirs(self):
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        custom_plugin_dir = str(TEST_DATA_DIR / 'plugin_packages')
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        plugin_dirs.value = [custom_plugin_dir]
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        load_plugins(EXTRACTOR_PLUGIN_SPEC)
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        self.assertIn(f'{PACKAGE_NAME}.extractor.package', sys.modules.keys())
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        self.assertIn('PackagePluginIE', plugin_ies.value)
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    def test_invalid_plugin_dir(self):
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        plugin_dirs.value = ['invalid_dir']
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        with self.assertRaises(ValueError):
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            load_plugins(EXTRACTOR_PLUGIN_SPEC)
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    def test_append_plugin_dirs(self):
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        custom_plugin_dir = str(TEST_DATA_DIR / 'plugin_packages')
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        self.assertEqual(plugin_dirs.value, ['default'])
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        plugin_dirs.value.append(custom_plugin_dir)
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        self.assertEqual(plugin_dirs.value, ['default', custom_plugin_dir])
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        load_plugins(EXTRACTOR_PLUGIN_SPEC)
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        self.assertIn(f'{PACKAGE_NAME}.extractor.package', sys.modules.keys())
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        self.assertIn('PackagePluginIE', plugin_ies.value)
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    def test_get_plugin_spec(self):
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        register_plugin_spec(EXTRACTOR_PLUGIN_SPEC)
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        register_plugin_spec(POSTPROCESSOR_PLUGIN_SPEC)
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        self.assertEqual(plugin_specs.value.get('extractor'), EXTRACTOR_PLUGIN_SPEC)
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        self.assertEqual(plugin_specs.value.get('postprocessor'), POSTPROCESSOR_PLUGIN_SPEC)
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        self.assertIsNone(plugin_specs.value.get('invalid'))
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if __name__ == '__main__':
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    unittest.main()
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