test_partial() — langchain Function Reference

Architecture documentation for the test_partial() function in test_few_shot.py from the langchain codebase.

Function python LangChainCore MessageInterface

Entity Profile

LangChainCore→ MessageInterface→ test_partial() — langchain Function Reference

Dependency Diagram

graph TD
  7828f6c5_91f0_f404_b8f8_8c74d8dc25f7["test_partial()"]
  e4e12a36_798e_ddc0_ab57_e44de269c7e7["test_few_shot.py"]
  7828f6c5_91f0_f404_b8f8_8c74d8dc25f7 -->|defined in| e4e12a36_798e_ddc0_ab57_e44de269c7e7
  style 7828f6c5_91f0_f404_b8f8_8c74d8dc25f7 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/tests/unit_tests/prompts/test_few_shot.py lines 201–233

def test_partial() -> None:
    """Test prompt can be partialed."""
    prefix = "This is a test about {content}."
    suffix = "Now you try to talk about {new_content}."
    examples = [
        {"question": "foo", "answer": "bar"},
        {"question": "baz", "answer": "foo"},
    ]
    prompt = FewShotPromptTemplate(
        suffix=suffix,
        prefix=prefix,
        input_variables=["content", "new_content"],
        examples=examples,
        example_prompt=EXAMPLE_PROMPT,
        example_separator="\n",
    )
    new_prompt = prompt.partial(content="foo")
    new_output = new_prompt.format(new_content="party")
    expected_output = (
        "This is a test about foo.\n"
        "foo: bar\n"
        "baz: foo\n"
        "Now you try to talk about party."
    )
    assert new_output == expected_output
    output = prompt.format(new_content="party", content="bar")
    expected_output = (
        "This is a test about bar.\n"
        "foo: bar\n"
        "baz: foo\n"
        "Now you try to talk about party."
    )
    assert output == expected_output