langchain/tests/unit_tests/chains/test_llm_math.py
Ankush Gola d3ec00b566
Callbacks Refactor [base] (#3256)
Co-authored-by: Nuno Campos <nuno@boringbits.io>
Co-authored-by: Davis Chase <130488702+dev2049@users.noreply.github.com>
Co-authored-by: Zander Chase <130414180+vowelparrot@users.noreply.github.com>
Co-authored-by: Harrison Chase <hw.chase.17@gmail.com>
2023-04-30 11:14:09 -07:00

41 lines
1.4 KiB
Python

"""Test LLM Math functionality."""
import pytest
from langchain.chains.llm_math.base import LLMMathChain
from langchain.chains.llm_math.prompt import _PROMPT_TEMPLATE
from tests.unit_tests.llms.fake_llm import FakeLLM
@pytest.fixture
def fake_llm_math_chain() -> LLMMathChain:
"""Fake LLM Math chain for testing."""
complex_question = _PROMPT_TEMPLATE.format(question="What is the square root of 2?")
queries = {
_PROMPT_TEMPLATE.format(question="What is 1 plus 1?"): "Answer: 2",
complex_question: "```text\n2**.5\n```",
_PROMPT_TEMPLATE.format(question="foo"): "foo",
}
fake_llm = FakeLLM(queries=queries)
return LLMMathChain.from_llm(fake_llm, input_key="q", output_key="a")
def test_simple_question(fake_llm_math_chain: LLMMathChain) -> None:
"""Test simple question that should not need python."""
question = "What is 1 plus 1?"
output = fake_llm_math_chain.run(question)
assert output == "Answer: 2"
def test_complex_question(fake_llm_math_chain: LLMMathChain) -> None:
"""Test complex question that should need python."""
question = "What is the square root of 2?"
output = fake_llm_math_chain.run(question)
assert output == f"Answer: {2**.5}"
def test_error(fake_llm_math_chain: LLMMathChain) -> None:
"""Test question that raises error."""
with pytest.raises(ValueError):
fake_llm_math_chain.run("foo")