letta-server/tests/test_server.py

import uuid

import pytest

import memgpt.utils as utils
from memgpt.constants import BASE_TOOLS

utils.DEBUG = True
from memgpt.config import MemGPTConfig
from memgpt.schemas.agent import CreateAgent
from memgpt.schemas.memory import ChatMemory
from memgpt.schemas.source import SourceCreate
from memgpt.schemas.user import UserCreate
from memgpt.server.server import SyncServer

from .utils import DummyDataConnector


@pytest.fixture(scope="module")
def server():
    # if os.getenv("OPENAI_API_KEY"):
    #    create_config("openai")
    #    credentials = MemGPTCredentials(
    #        openai_key=os.getenv("OPENAI_API_KEY"),
    #    )
    # else:  # hosted
    #    create_config("memgpt_hosted")
    #    credentials = MemGPTCredentials()

    config = MemGPTConfig.load()
    print("CONFIG PATH", config.config_path)

    ## set to use postgres
    # config.archival_storage_uri = db_url
    # config.recall_storage_uri = db_url
    # config.metadata_storage_uri = db_url
    # config.archival_storage_type = "postgres"
    # config.recall_storage_type = "postgres"
    # config.metadata_storage_type = "postgres"

    config.save()

    server = SyncServer()
    return server


@pytest.fixture(scope="module")
def user_id(server):
    # create user
    user = server.create_user(UserCreate(name="test_user"))
    print(f"Created user\n{user.id}")

    yield user.id

    # cleanup
    server.delete_user(user.id)


@pytest.fixture(scope="module")
def agent_id(server, user_id):
    # create agent
    agent_state = server.create_agent(
        request=CreateAgent(name="test_agent", tools=BASE_TOOLS, memory=ChatMemory(human="Sarah", persona="I am a helpful assistant")),
        user_id=user_id,
    )
    print(f"Created agent\n{agent_state}")
    yield agent_state.id

    # cleanup
    server.delete_agent(user_id, agent_state.id)


def test_error_on_nonexistent_agent(server, user_id, agent_id):
    try:
        fake_agent_id = uuid.uuid4()
        server.user_message(user_id=user_id, agent_id=fake_agent_id, message="Hello?")
        raise Exception("user_message call should have failed")
    except (KeyError, ValueError) as e:
        # Error is expected
        print(e)
    except:
        raise


@pytest.mark.order(1)
def test_user_message(server, user_id, agent_id):
    try:
        server.user_message(user_id=user_id, agent_id=agent_id, message="/memory")
        raise Exception("user_message call should have failed")
    except ValueError as e:
        # Error is expected
        print(e)
    except:
        raise

    server.run_command(user_id=user_id, agent_id=agent_id, command="/memory")


@pytest.mark.order(3)
def test_load_data(server, user_id, agent_id):
    # create source
    source = server.create_source(SourceCreate(name="test_source"), user_id=user_id)

    # load data
    archival_memories = [
        "alpha",
        "Cinderella wore a blue dress",
        "Dog eat dog",
        "ZZZ",
        "Shishir loves indian food",
    ]
    connector = DummyDataConnector(archival_memories)
    server.load_data(user_id, connector, source.name)


@pytest.mark.order(3)
def test_attach_source_to_agent(server, user_id, agent_id):
    # check archival memory size
    passages_before = server.get_agent_archival(user_id=user_id, agent_id=agent_id, start=0, count=10000)
    assert len(passages_before) == 0

    # attach source
    server.attach_source_to_agent(user_id=user_id, agent_id=agent_id, source_name="test_source")

    # check archival memory size
    passages_after = server.get_agent_archival(user_id=user_id, agent_id=agent_id, start=0, count=10000)
    assert len(passages_after) == 5


def test_save_archival_memory(server, user_id, agent_id):
    # TODO: insert into archival memory
    pass


@pytest.mark.order(4)
def test_user_message(server, user_id, agent_id):
    # add data into recall memory
    server.user_message(user_id=user_id, agent_id=agent_id, message="Hello?")
    # server.user_message(user_id=user_id, agent_id=agent_id, message="Hello?")
    # server.user_message(user_id=user_id, agent_id=agent_id, message="Hello?")
    # server.user_message(user_id=user_id, agent_id=agent_id, message="Hello?")
    # server.user_message(user_id=user_id, agent_id=agent_id, message="Hello?")


@pytest.mark.order(5)
def test_get_recall_memory(server, user_id, agent_id):
    # test recall memory cursor pagination
    messages_1 = server.get_agent_recall_cursor(user_id=user_id, agent_id=agent_id, limit=2)
    cursor1 = messages_1[-1].id
    messages_2 = server.get_agent_recall_cursor(user_id=user_id, agent_id=agent_id, after=cursor1, limit=1000)
    messages_2[-1].id
    messages_3 = server.get_agent_recall_cursor(user_id=user_id, agent_id=agent_id, limit=1000)
    messages_3[-1].id
    # [m["id"] for m in messages_3]
    # [m["id"] for m in messages_2]
    timestamps = [m.created_at for m in messages_3]
    print("timestamps", timestamps)
    assert messages_3[-1].created_at >= messages_3[0].created_at
    assert len(messages_3) == len(messages_1) + len(messages_2)
    messages_4 = server.get_agent_recall_cursor(user_id=user_id, agent_id=agent_id, reverse=True, before=cursor1)
    assert len(messages_4) == 1

    # test in-context message ids
    all_messages = server.get_agent_messages(agent_id=agent_id, start=0, count=1000)
    in_context_ids = server.get_in_context_message_ids(agent_id=agent_id)
    # TODO: doesn't pass since recall memory also logs all system message changess
    # print("IN CONTEXT:", [m.text for m in server.get_in_context_messages(agent_id=agent_id)])
    # print("ALL:", [m.text for m in all_messages])
    # print()
    # for message in all_messages:
    #    if message.id not in in_context_ids:
    #        print("NOT IN CONTEXT:", message.id, message.created_at, message.text[-100:])
    #        print()
    # assert len(in_context_ids) == len(messages_3)
    message_ids = [m.id for m in messages_3]
    for message_id in in_context_ids:
        assert message_id in message_ids, f"{message_id} not in {message_ids}"

    # test recall memory
    messages_1 = server.get_agent_messages(agent_id=agent_id, start=0, count=1)
    assert len(messages_1) == 1
    messages_2 = server.get_agent_messages(agent_id=agent_id, start=1, count=1000)
    messages_3 = server.get_agent_messages(agent_id=agent_id, start=1, count=2)
    # not sure exactly how many messages there should be
    assert len(messages_2) > len(messages_3)
    # test safe empty return
    messages_none = server.get_agent_messages(agent_id=agent_id, start=1000, count=1000)
    assert len(messages_none) == 0


@pytest.mark.order(6)
def test_get_archival_memory(server, user_id, agent_id):
    # test archival memory cursor pagination
    passages_1 = server.get_agent_archival_cursor(user_id=user_id, agent_id=agent_id, reverse=False, limit=2, order_by="text")
    assert len(passages_1) == 2, f"Returned {[p.text for p in passages_1]}, not equal to 2"
    cursor1 = passages_1[-1].id
    passages_2 = server.get_agent_archival_cursor(
        user_id=user_id,
        agent_id=agent_id,
        reverse=False,
        after=cursor1,
        order_by="text",
    )
    cursor2 = passages_2[-1].id
    passages_3 = server.get_agent_archival_cursor(
        user_id=user_id,
        agent_id=agent_id,
        reverse=False,
        before=cursor2,
        limit=1000,
        order_by="text",
    )
    passages_3[-1].id
    assert passages_1[0].text == "Cinderella wore a blue dress"
    assert len(passages_2) in [3, 4]  # NOTE: exact size seems non-deterministic, so loosen test
    assert len(passages_3) in [4, 5]  # NOTE: exact size seems non-deterministic, so loosen test

    # test archival memory
    passage_1 = server.get_agent_archival(user_id=user_id, agent_id=agent_id, start=0, count=1)
    assert len(passage_1) == 1
    passage_2 = server.get_agent_archival(user_id=user_id, agent_id=agent_id, start=1, count=1000)
    assert len(passage_2) in [4, 5]  # NOTE: exact size seems non-deterministic, so loosen test
    # test safe empty return
    passage_none = server.get_agent_archival(user_id=user_id, agent_id=agent_id, start=1000, count=1000)
    assert len(passage_none) == 0