dify/api/tests/integration_tests/workflow/nodes/test_llm.py

import json
import os
import time
import uuid
from collections.abc import Generator
from unittest.mock import MagicMock

import pytest

from core.app.entities.app_invoke_entities import InvokeFrom, ModelConfigWithCredentialsEntity
from core.entities.provider_configuration import ProviderConfiguration, ProviderModelBundle
from core.entities.provider_entities import CustomConfiguration, CustomProviderConfiguration, SystemConfiguration
from core.model_manager import ModelInstance
from core.model_runtime.entities.model_entities import ModelType
from core.model_runtime.model_providers import ModelProviderFactory
from core.workflow.entities.node_entities import UserFrom
from core.workflow.entities.variable_pool import VariablePool
from core.workflow.enums import SystemVariableKey
from core.workflow.graph_engine.entities.graph import Graph
from core.workflow.graph_engine.entities.graph_init_params import GraphInitParams
from core.workflow.graph_engine.entities.graph_runtime_state import GraphRuntimeState
from core.workflow.nodes.event import RunCompletedEvent
from core.workflow.nodes.llm.llm_node import LLMNode
from extensions.ext_database import db
from models.provider import ProviderType
from models.workflow import WorkflowNodeExecutionStatus, WorkflowType

"""FOR MOCK FIXTURES, DO NOT REMOVE"""
from tests.integration_tests.model_runtime.__mock.openai import setup_openai_mock
from tests.integration_tests.workflow.nodes.__mock.code_executor import setup_code_executor_mock


def init_llm_node(config: dict) -> LLMNode:
    graph_config = {
        "edges": [
            {
                "id": "start-source-next-target",
                "source": "start",
                "target": "llm",
            },
        ],
        "nodes": [{"data": {"type": "start"}, "id": "start"}, config],
    }

    graph = Graph.init(graph_config=graph_config)

    init_params = GraphInitParams(
        tenant_id="1",
        app_id="1",
        workflow_type=WorkflowType.WORKFLOW,
        workflow_id="1",
        graph_config=graph_config,
        user_id="1",
        user_from=UserFrom.ACCOUNT,
        invoke_from=InvokeFrom.DEBUGGER,
        call_depth=0,
    )

    # construct variable pool
    variable_pool = VariablePool(
        system_variables={
            SystemVariableKey.QUERY: "what's the weather today?",
            SystemVariableKey.FILES: [],
            SystemVariableKey.CONVERSATION_ID: "abababa",
            SystemVariableKey.USER_ID: "aaa",
        },
        user_inputs={},
        environment_variables=[],
        conversation_variables=[],
    )
    variable_pool.add(["abc", "output"], "sunny")

    node = LLMNode(
        id=str(uuid.uuid4()),
        graph_init_params=init_params,
        graph=graph,
        graph_runtime_state=GraphRuntimeState(variable_pool=variable_pool, start_at=time.perf_counter()),
        config=config,
    )

    return node


@pytest.mark.parametrize("setup_openai_mock", [["chat"]], indirect=True)
def test_execute_llm(setup_openai_mock):
    node = init_llm_node(
        config={
            "id": "llm",
            "data": {
                "title": "123",
                "type": "llm",
                "model": {"provider": "openai", "name": "gpt-3.5-turbo", "mode": "chat", "completion_params": {}},
                "prompt_template": [
                    {"role": "system", "text": "you are a helpful assistant.\ntoday's weather is {{#abc.output#}}."},
                    {"role": "user", "text": "{{#sys.query#}}"},
                ],
                "memory": None,
                "context": {"enabled": False},
                "vision": {"enabled": False},
            },
        },
    )

    credentials = {"openai_api_key": os.environ.get("OPENAI_API_KEY")}

    provider_instance = ModelProviderFactory().get_provider_instance("openai")
    model_type_instance = provider_instance.get_model_instance(ModelType.LLM)
    provider_model_bundle = ProviderModelBundle(
        configuration=ProviderConfiguration(
            tenant_id="1",
            provider=provider_instance.get_provider_schema(),
            preferred_provider_type=ProviderType.CUSTOM,
            using_provider_type=ProviderType.CUSTOM,
            system_configuration=SystemConfiguration(enabled=False),
            custom_configuration=CustomConfiguration(provider=CustomProviderConfiguration(credentials=credentials)),
            model_settings=[],
        ),
        provider_instance=provider_instance,
        model_type_instance=model_type_instance,
    )
    model_instance = ModelInstance(provider_model_bundle=provider_model_bundle, model="gpt-3.5-turbo")
    model_schema = model_type_instance.get_model_schema("gpt-3.5-turbo")
    assert model_schema is not None
    model_config = ModelConfigWithCredentialsEntity(
        model="gpt-3.5-turbo",
        provider="openai",
        mode="chat",
        credentials=credentials,
        parameters={},
        model_schema=model_schema,
        provider_model_bundle=provider_model_bundle,
    )

    # Mock db.session.close()
    db.session.close = MagicMock()

    node._fetch_model_config = MagicMock(return_value=(model_instance, model_config))

    # execute node
    result = node._run()
    assert isinstance(result, Generator)

    for item in result:
        if isinstance(item, RunCompletedEvent):
            assert item.run_result.status == WorkflowNodeExecutionStatus.SUCCEEDED
            assert item.run_result.process_data is not None
            assert item.run_result.outputs is not None
            assert item.run_result.outputs.get("text") is not None
            assert item.run_result.outputs.get("usage", {})["total_tokens"] > 0


@pytest.mark.parametrize("setup_code_executor_mock", [["none"]], indirect=True)
@pytest.mark.parametrize("setup_openai_mock", [["chat"]], indirect=True)
def test_execute_llm_with_jinja2(setup_code_executor_mock, setup_openai_mock):
    """
    Test execute LLM node with jinja2
    """
    node = init_llm_node(
        config={
            "id": "llm",
            "data": {
                "title": "123",
                "type": "llm",
                "model": {"provider": "openai", "name": "gpt-3.5-turbo", "mode": "chat", "completion_params": {}},
                "prompt_config": {
                    "jinja2_variables": [
                        {"variable": "sys_query", "value_selector": ["sys", "query"]},
                        {"variable": "output", "value_selector": ["abc", "output"]},
                    ]
                },
                "prompt_template": [
                    {
                        "role": "system",
                        "text": "you are a helpful assistant.\ntoday's weather is {{#abc.output#}}",
                        "jinja2_text": "you are a helpful assistant.\ntoday's weather is {{output}}.",
                        "edition_type": "jinja2",
                    },
                    {
                        "role": "user",
                        "text": "{{#sys.query#}}",
                        "jinja2_text": "{{sys_query}}",
                        "edition_type": "basic",
                    },
                ],
                "memory": None,
                "context": {"enabled": False},
                "vision": {"enabled": False},
            },
        },
    )

    credentials = {"openai_api_key": os.environ.get("OPENAI_API_KEY")}

    provider_instance = ModelProviderFactory().get_provider_instance("openai")
    model_type_instance = provider_instance.get_model_instance(ModelType.LLM)
    provider_model_bundle = ProviderModelBundle(
        configuration=ProviderConfiguration(
            tenant_id="1",
            provider=provider_instance.get_provider_schema(),
            preferred_provider_type=ProviderType.CUSTOM,
            using_provider_type=ProviderType.CUSTOM,
            system_configuration=SystemConfiguration(enabled=False),
            custom_configuration=CustomConfiguration(provider=CustomProviderConfiguration(credentials=credentials)),
            model_settings=[],
        ),
        provider_instance=provider_instance,
        model_type_instance=model_type_instance,
    )

    model_instance = ModelInstance(provider_model_bundle=provider_model_bundle, model="gpt-3.5-turbo")
    model_schema = model_type_instance.get_model_schema("gpt-3.5-turbo")
    assert model_schema is not None
    model_config = ModelConfigWithCredentialsEntity(
        model="gpt-3.5-turbo",
        provider="openai",
        mode="chat",
        credentials=credentials,
        parameters={},
        model_schema=model_schema,
        provider_model_bundle=provider_model_bundle,
    )

    # Mock db.session.close()
    db.session.close = MagicMock()

    node._fetch_model_config = MagicMock(return_value=(model_instance, model_config))

    # execute node
    result = node._run()

    for item in result:
        if isinstance(item, RunCompletedEvent):
            assert item.run_result.status == WorkflowNodeExecutionStatus.SUCCEEDED
            assert item.run_result.process_data is not None
            assert "sunny" in json.dumps(item.run_result.process_data)
            assert "what's the weather today?" in json.dumps(item.run_result.process_data)