test_prompt_from_file_with_partial_variables() — langchain Function Reference

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

Function python CoreAbstractions RunnableInterface

Entity Profile

CoreAbstractions→ RunnableInterface→ test_prompt_from_file_with_partial_variables() — langchain Function Reference

Dependency Diagram

graph TD
  2cc35e04_a7a8_f4d7_c674_69d8bc22e62c["test_prompt_from_file_with_partial_variables()"]
  af1b998b_a7bf_9d5c_32ef_bab507a6bee3["test_prompt.py"]
  2cc35e04_a7a8_f4d7_c674_69d8bc22e62c -->|defined in| af1b998b_a7bf_9d5c_32ef_bab507a6bee3
  style 2cc35e04_a7a8_f4d7_c674_69d8bc22e62c fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/tests/unit_tests/prompts/test_prompt.py lines 361–380

def test_prompt_from_file_with_partial_variables() -> None:
    """Test prompt from file with partial variables.

    Test prompt can be successfully constructed from a file with partial variables.
    """
    # given
    template = "This is a {foo} test {bar}."
    partial_variables = {"bar": "baz"}
    # when
    with mock.patch("pathlib.Path.open", mock.mock_open(read_data=template)):
        prompt = PromptTemplate.from_file(
            "mock_file_name", partial_variables=partial_variables
        )
    # then
    expected_prompt = PromptTemplate(
        template=template,
        input_variables=["foo"],
        partial_variables=partial_variables,
    )
    assert prompt == expected_prompt