test_debug_is_settable_via_setter() — langchain Function Reference

Architecture documentation for the test_debug_is_settable_via_setter() function in test_globals.py from the langchain codebase.

Function python LangChainCore MessageInterface

Entity Profile

LangChainCore→ MessageInterface→ test_debug_is_settable_via_setter() — langchain Function Reference

Dependency Diagram

graph TD
  b483e09c_4d0a_9d8c_93b8_2c86f6081005["test_debug_is_settable_via_setter()"]
  d15e95c4_3344_c8ce_47d5_14e082f95cb5["test_globals.py"]
  b483e09c_4d0a_9d8c_93b8_2c86f6081005 -->|defined in| d15e95c4_3344_c8ce_47d5_14e082f95cb5
  style b483e09c_4d0a_9d8c_93b8_2c86f6081005 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain/tests/unit_tests/test_globals.py lines 25–52

def test_debug_is_settable_via_setter() -> None:
    from langchain_core import globals as langchain_globals
    from langchain_core.callbacks.manager import _get_debug

    previous_value = langchain_globals._debug
    previous_fn_reading = _get_debug()
    assert previous_value == previous_fn_reading

    # Flip the value of the flag.
    set_debug(not previous_value)

    new_value = langchain_globals._debug
    new_fn_reading = _get_debug()

    try:
        # We successfully changed the value of `debug`.
        assert new_value != previous_value

        # If we access `debug` via a function used elsewhere in langchain,
        # it also sees the same new value.
        assert new_value == new_fn_reading

        # If we access `debug` via `get_debug()` we also get the same value.
        assert new_value == get_debug()
    finally:
        # Make sure we don't alter global state, even if the test fails.
        # Always reset `debug` to the value it had before.
        set_debug(previous_value)