Files
langchain-python/libs/langchain/tests/unit_tests/load/test_load.py
T
Harrison Chase d82cbf5e76 Separate out langchain_core package (#13577)
Co-authored-by: Nuno Campos <nuno@boringbits.io>
Co-authored-by: Bagatur <baskaryan@gmail.com>
Co-authored-by: Erick Friis <erick@langchain.dev>
2023-11-20 13:09:30 -08:00

144 lines
4.4 KiB
Python

"""Test for Serializable base class"""
import pytest
from langchain_core.load.dump import dumpd, dumps
from langchain_core.load.load import load, loads
from langchain_core.prompts.prompt import PromptTemplate
from langchain.chains.llm import LLMChain
from langchain.llms.openai import OpenAI
class NotSerializable:
pass
@pytest.mark.requires("openai")
def test_loads_openai_llm() -> None:
llm = OpenAI(model="davinci", temperature=0.5, openai_api_key="hello")
llm_string = dumps(llm)
llm2 = loads(llm_string, secrets_map={"OPENAI_API_KEY": "hello"})
assert llm2 == llm
assert dumps(llm2) == llm_string
assert isinstance(llm2, OpenAI)
@pytest.mark.requires("openai")
def test_loads_llmchain() -> None:
llm = OpenAI(model="davinci", temperature=0.5, openai_api_key="hello")
prompt = PromptTemplate.from_template("hello {name}!")
chain = LLMChain(llm=llm, prompt=prompt)
chain_string = dumps(chain)
chain2 = loads(chain_string, secrets_map={"OPENAI_API_KEY": "hello"})
assert chain2 == chain
assert dumps(chain2) == chain_string
assert isinstance(chain2, LLMChain)
assert isinstance(chain2.llm, OpenAI)
assert isinstance(chain2.prompt, PromptTemplate)
@pytest.mark.requires("openai")
def test_loads_llmchain_env() -> None:
import os
has_env = "OPENAI_API_KEY" in os.environ
if not has_env:
os.environ["OPENAI_API_KEY"] = "env_variable"
llm = OpenAI(model="davinci", temperature=0.5)
prompt = PromptTemplate.from_template("hello {name}!")
chain = LLMChain(llm=llm, prompt=prompt)
chain_string = dumps(chain)
chain2 = loads(chain_string)
assert chain2 == chain
assert dumps(chain2) == chain_string
assert isinstance(chain2, LLMChain)
assert isinstance(chain2.llm, OpenAI)
assert isinstance(chain2.prompt, PromptTemplate)
if not has_env:
del os.environ["OPENAI_API_KEY"]
@pytest.mark.requires("openai")
def test_loads_llmchain_with_non_serializable_arg() -> None:
llm = OpenAI(
model="davinci",
temperature=0.5,
openai_api_key="hello",
http_client=NotSerializable,
)
prompt = PromptTemplate.from_template("hello {name}!")
chain = LLMChain(llm=llm, prompt=prompt)
chain_string = dumps(chain, pretty=True)
with pytest.raises(NotImplementedError):
loads(chain_string, secrets_map={"OPENAI_API_KEY": "hello"})
@pytest.mark.requires("openai")
def test_load_openai_llm() -> None:
llm = OpenAI(model="davinci", temperature=0.5, openai_api_key="hello")
llm_obj = dumpd(llm)
llm2 = load(llm_obj, secrets_map={"OPENAI_API_KEY": "hello"})
assert llm2 == llm
assert dumpd(llm2) == llm_obj
assert isinstance(llm2, OpenAI)
@pytest.mark.requires("openai")
def test_load_llmchain() -> None:
llm = OpenAI(model="davinci", temperature=0.5, openai_api_key="hello")
prompt = PromptTemplate.from_template("hello {name}!")
chain = LLMChain(llm=llm, prompt=prompt)
chain_obj = dumpd(chain)
chain2 = load(chain_obj, secrets_map={"OPENAI_API_KEY": "hello"})
assert chain2 == chain
assert dumpd(chain2) == chain_obj
assert isinstance(chain2, LLMChain)
assert isinstance(chain2.llm, OpenAI)
assert isinstance(chain2.prompt, PromptTemplate)
@pytest.mark.requires("openai")
def test_load_llmchain_env() -> None:
import os
has_env = "OPENAI_API_KEY" in os.environ
if not has_env:
os.environ["OPENAI_API_KEY"] = "env_variable"
llm = OpenAI(model="davinci", temperature=0.5)
prompt = PromptTemplate.from_template("hello {name}!")
chain = LLMChain(llm=llm, prompt=prompt)
chain_obj = dumpd(chain)
chain2 = load(chain_obj)
assert chain2 == chain
assert dumpd(chain2) == chain_obj
assert isinstance(chain2, LLMChain)
assert isinstance(chain2.llm, OpenAI)
assert isinstance(chain2.prompt, PromptTemplate)
if not has_env:
del os.environ["OPENAI_API_KEY"]
@pytest.mark.requires("openai")
def test_load_llmchain_with_non_serializable_arg() -> None:
llm = OpenAI(
model="davinci",
temperature=0.5,
openai_api_key="hello",
http_client=NotSerializable,
)
prompt = PromptTemplate.from_template("hello {name}!")
chain = LLMChain(llm=llm, prompt=prompt)
chain_obj = dumpd(chain)
with pytest.raises(NotImplementedError):
load(chain_obj, secrets_map={"OPENAI_API_KEY": "hello"})