test_get_buffer_string_custom_system_prefix() — langchain Function Reference

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

Function python CoreAbstractions MessageSchema

Entity Profile

CoreAbstractions→ MessageSchema→ test_get_buffer_string_custom_system_prefix() — langchain Function Reference

Dependency Diagram

graph TD
  94e073e5_eeda_542e_83f7_89a062cc50ce["test_get_buffer_string_custom_system_prefix()"]
  ea3f8d89_f44b_6738_3cb9_a740a73cfca4["test_utils.py"]
  94e073e5_eeda_542e_83f7_89a062cc50ce -->|defined in| ea3f8d89_f44b_6738_3cb9_a740a73cfca4
  style 94e073e5_eeda_542e_83f7_89a062cc50ce fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/tests/unit_tests/messages/test_utils.py lines 2652–2659

def test_get_buffer_string_custom_system_prefix() -> None:
    """Test `get_buffer_string` with custom `system_prefix`."""
    messages: list[BaseMessage] = [
        SystemMessage(content="You are a helpful assistant."),
        HumanMessage(content="Hello"),
    ]
    result = get_buffer_string(messages, system_prefix="Instructions")
    assert result == "Instructions: You are a helpful assistant.\nHuman: Hello"