test_prompt_invalid_template_format() — langchain Function Reference

Architecture documentation for the test_prompt_invalid_template_format() function in test_prompt.py from the langchain codebase.

Function python CoreAbstractions RunnableInterface

Entity Profile

CoreAbstractions→ RunnableInterface→ test_prompt_invalid_template_format() — langchain Function Reference

Dependency Diagram

graph TD
  fc2e8c11_3af5_f484_e11a_2af68a956002["test_prompt_invalid_template_format()"]
  af1b998b_a7bf_9d5c_32ef_bab507a6bee3["test_prompt.py"]
  fc2e8c11_3af5_f484_e11a_2af68a956002 -->|defined in| af1b998b_a7bf_9d5c_32ef_bab507a6bee3
  style fc2e8c11_3af5_f484_e11a_2af68a956002 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/tests/unit_tests/prompts/test_prompt.py lines 342–351

def test_prompt_invalid_template_format() -> None:
    """Test initializing a prompt with invalid template format."""
    template = "This is a {foo} test."
    input_variables = ["foo"]
    with pytest.raises(ValueError, match="Unsupported template format: bar"):
        PromptTemplate(
            input_variables=input_variables,
            template=template,
            template_format="bar",
        )