test_verbose_is_settable_via_setter() — langchain Function Reference

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

Function python LangChainCore MessageInterface

Entity Profile

LangChainCore→ MessageInterface→ test_verbose_is_settable_via_setter() — langchain Function Reference

Dependency Diagram

graph TD
  24d9f718_b695_1318_faf0_1bb7efff8919["test_verbose_is_settable_via_setter()"]
  d15e95c4_3344_c8ce_47d5_14e082f95cb5["test_globals.py"]
  24d9f718_b695_1318_faf0_1bb7efff8919 -->|defined in| d15e95c4_3344_c8ce_47d5_14e082f95cb5
  style 24d9f718_b695_1318_faf0_1bb7efff8919 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain/tests/unit_tests/test_globals.py lines 55–83

def test_verbose_is_settable_via_setter() -> None:
    from langchain_core import globals as langchain_globals

    from langchain_classic.chains.base import _get_verbosity

    previous_value = langchain_globals._verbose
    previous_fn_reading = _get_verbosity()
    assert previous_value == previous_fn_reading

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

    new_value = langchain_globals._verbose
    new_fn_reading = _get_verbosity()

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

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

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