basicmachines-co-basic-memory/tests/mcp/test_open_nodes.py

"""Tests for MCP open_nodes tool."""

import pytest
from mcp.types import EmbeddedResource

from basic_memory.mcp.server import MIME_TYPE, handle_call_tool
from basic_memory.schemas import OpenNodesResponse


@pytest.mark.asyncio
async def test_open_nodes(app):
    """Test retrieving specific nodes by name."""
    # Create test entities
    entity_data = {
        "entities": [
            {
                "name": "OpenTestA",
                "entity_type": "test",
                "observations": ["First test entity"],
            },
            {
                "name": "OpenTestB",
                "entity_type": "test",
                "observations": ["Second test entity"],
            },
            {
                "name": "OpenTestC",
                "entity_type": "test",
                "observations": ["Third test entity"],
            },
        ]
    }

    await handle_call_tool("create_entities", entity_data)

    # Open specific nodes
    result = await handle_call_tool(
        "open_nodes", {"entity_ids": ["test/opentesta", "test/opentestb"]}
    )

    # Verify response format
    assert len(result) == 1
    assert isinstance(result[0], EmbeddedResource)
    assert result[0].type == "resource"
    assert result[0].resource.mimeType == MIME_TYPE

    # Verify entities returned
    response = OpenNodesResponse.model_validate_json(result[0].resource.text)  # pyright: ignore [reportAttributeAccessIssue]
    assert len(response.entities) == 2

    # Entities should be returned in same order as requested
    assert response.entities[0].name == "OpenTestA"
    assert response.entities[1].name == "OpenTestB"

    # Verify entity content
    entity = response.entities[0]
    assert entity.id == "test/opentesta"
    assert entity.entity_type == "test"
    assert len(entity.observations) == 1
    assert entity.observations[0].content == "First test entity"