test_from_env_with_error_message() — langchain Function Reference

Architecture documentation for the test_from_env_with_error_message() function in test_utils.py from the langchain codebase.

Function python LangChainCore MessageInterface

Entity Profile

LangChainCore→ MessageInterface→ test_from_env_with_error_message() — langchain Function Reference

Dependency Diagram

graph TD
  3cf9ff5f_98c2_5489_158f_355f4e89d9d4["test_from_env_with_error_message()"]
  76328b48_c466_d255_3e8f_a315858c4c02["test_utils.py"]
  3cf9ff5f_98c2_5489_158f_355f4e89d9d4 -->|defined in| 76328b48_c466_d255_3e8f_a315858c4c02
  style 3cf9ff5f_98c2_5489_158f_355f4e89d9d4 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/tests/unit_tests/utils/test_utils.py lines 262–268

def test_from_env_with_error_message() -> None:
    key = "TEST_KEY"
    error_message = "Custom error message"
    with patch.dict(os.environ, {}, clear=True):
        get_value = from_env(key, error_message=error_message)
        with pytest.raises(ValueError, match=error_message):
            get_value()