test_chat_invalid_input_variables_missing() — langchain Function Reference

Architecture documentation for the test_chat_invalid_input_variables_missing() function in test_chat.py from the langchain codebase.

Function python CoreAbstractions MessageSchema

Entity Profile

CoreAbstractions→ MessageSchema→ test_chat_invalid_input_variables_missing() — langchain Function Reference

Dependency Diagram

graph TD
  66be1433_d423_8587_fd61_a35f0725613c["test_chat_invalid_input_variables_missing()"]
  bf3138ca_0068_68ea_f479_35376e264d13["test_chat.py"]
  66be1433_d423_8587_fd61_a35f0725613c -->|defined in| bf3138ca_0068_68ea_f479_35376e264d13
  style 66be1433_d423_8587_fd61_a35f0725613c fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/tests/unit_tests/prompts/test_chat.py lines 684–698

def test_chat_invalid_input_variables_missing() -> None:
    messages = [HumanMessagePromptTemplate.from_template("{foo}")]
    with pytest.raises(
        ValueError,
        match=re.escape("Got mismatched input_variables. Expected: {'foo'}. Got: []"),
    ):
        ChatPromptTemplate(
            messages=messages,
            input_variables=[],
            validate_template=True,
        )
    assert ChatPromptTemplate(
        messages=messages,
        input_variables=[],
    ).input_variables == ["foo"]