langchain_core.utils.utils
.mock_now¶
- langchain_core.utils.utils.mock_now(dt_value)[source]¶
Context manager for mocking out datetime.now() in unit tests.
Example: with mock_now(datetime.datetime(2011, 2, 3, 10, 11)):
assert datetime.datetime.now() == datetime.datetime(2011, 2, 3, 10, 11)