|  | import os
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							|  | import aiounittest
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							|  | os.environ['SEARX_DEBUG'] = '1'
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							|  | os.environ['SEARX_DEBUG_LOG_LEVEL'] = 'WARNING'
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							|  | os.environ['SEARX_DISABLE_ETC_SETTINGS'] = '1'
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							|  | os.environ.pop('SEARX_SETTINGS_PATH', None)
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							|  | 
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							|  | 
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							|  | class SearxTestLayer:
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							|  |     """Base layer for non-robot tests."""
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							|  | 
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							|  |     __name__ = 'SearxTestLayer'
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							|  | 
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							|  |     @classmethod
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							|  |     def setUp(cls):
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							|  |         pass
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							|  | 
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							|  |     @classmethod
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							|  |     def tearDown(cls):
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							|  |         pass
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							|  | 
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							|  |     @classmethod
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							|  |     def testSetUp(cls):
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							|  |         pass
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							|  | 
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							|  |     @classmethod
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							|  |     def testTearDown(cls):
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							|  |         pass
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							|  | 
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							|  | 
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							|  | class SearxTestCase(aiounittest.AsyncTestCase):
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							|  |     """Base test case for non-robot tests."""
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							|  | 
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							|  |     layer = SearxTestLayer
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							|  | 
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							|  |     def setattr4test(self, obj, attr, value):
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							|  |         """
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							|  |         setattr(obj, attr, value)
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							|  |         but reset to the previous value in the cleanup.
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							|  |         """
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							|  |         previous_value = getattr(obj, attr)
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							|  | 
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							|  |         def cleanup_patch():
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							|  |             setattr(obj, attr, previous_value)
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							|  |         self.addCleanup(cleanup_patch)
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							|  |         setattr(obj, attr, value)
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