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# Copyright (c) OpenMMLab. All rights reserved.
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from unittest.mock import Mock
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from mmengine.hooks import SyncBuffersHook
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class TestSyncBuffersHook:
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def test_sync_buffers_hook(self):
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runner = Mock()
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runner.model = Mock()
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hook = SyncBuffersHook()
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hook._after_epoch(runner)
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