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How to use derived_value method in hypothesis

Best Python code snippet using hypothesis

test_derived.py

Source:test_derived.py

1"""2Tests for derived.py3"""4import sys5from unittest import TestCase6from openedx.core.lib.derived import derived, derived_collection_entry, derive_settings, clear_for_tests7class TestDerivedSettings(TestCase):8    """9    Test settings that are derived from other settings.10    """11    def setUp(self):12        super(TestDerivedSettings, self).setUp()13        clear_for_tests()14        self.module = sys.modules[__name__]15        self.module.SIMPLE_VALUE = 'paneer'16        self.module.DERIVED_VALUE = lambda settings: 'mutter ' + settings.SIMPLE_VALUE17        self.module.ANOTHER_DERIVED_VALUE = lambda settings: settings.DERIVED_VALUE + ' with naan'18        self.module.UNREGISTERED_DERIVED_VALUE = lambda settings: settings.SIMPLE_VALUE + ' is cheese'19        derived('DERIVED_VALUE', 'ANOTHER_DERIVED_VALUE')20        self.module.DICT_VALUE = {}21        self.module.DICT_VALUE['test_key'] = lambda settings: settings.DERIVED_VALUE * 322        derived_collection_entry('DICT_VALUE', 'test_key')23        self.module.DICT_VALUE['list_key'] = ['not derived', lambda settings: settings.DERIVED_VALUE]24        derived_collection_entry('DICT_VALUE', 'list_key', 1)25    def test_derived_settings_are_derived(self):26        derive_settings(__name__)27        self.assertEqual(self.module.DERIVED_VALUE, 'mutter paneer')28        self.assertEqual(self.module.ANOTHER_DERIVED_VALUE, 'mutter paneer with naan')29    def test_unregistered_derived_settings(self):30        derive_settings(__name__)31        self.assertTrue(callable(self.module.UNREGISTERED_DERIVED_VALUE))32    def test_derived_settings_overridden(self):33        self.module.DERIVED_VALUE = 'aloo gobi'34        derive_settings(__name__)35        self.assertEqual(self.module.DERIVED_VALUE, 'aloo gobi')36        self.assertEqual(self.module.ANOTHER_DERIVED_VALUE, 'aloo gobi with naan')37    def test_derived_dict_settings(self):38        derive_settings(__name__)39        self.assertEqual(self.module.DICT_VALUE['test_key'], 'mutter paneermutter paneermutter paneer')40    def test_derived_nested_settings(self):41        derive_settings(__name__)...

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