trustgraph/tests/integration/test_rag_streaming_protocol.py
cybermaggedon d35473f7f7
feat: workspace-based multi-tenancy, replacing user as tenancy axis (#840)
Introduces `workspace` as the isolation boundary for config, flows,
library, and knowledge data. Removes `user` as a schema-level field
throughout the code, API specs, and tests; workspace provides the
same separation more cleanly at the trusted flow.workspace layer
rather than through client-supplied message fields.

Design
------
- IAM tech spec (docs/tech-specs/iam.md) documents current state,
  proposed auth/access model, and migration direction.
- Data ownership model (docs/tech-specs/data-ownership-model.md)
  captures the workspace/collection/flow hierarchy.

Schema + messaging
------------------
- Drop `user` field from AgentRequest/Step, GraphRagQuery,
  DocumentRagQuery, Triples/Graph/Document/Row EmbeddingsRequest,
  Sparql/Rows/Structured QueryRequest, ToolServiceRequest.
- Keep collection/workspace routing via flow.workspace at the
  service layer.
- Translators updated to not serialise/deserialise user.

API specs
---------
- OpenAPI schemas and path examples cleaned of user fields.
- Websocket async-api messages updated.
- Removed the unused parameters/User.yaml.

Services + base
---------------
- Librarian, collection manager, knowledge, config: all operations
  scoped by workspace. Config client API takes workspace as first
  positional arg.
- `flow.workspace` set at flow start time by the infrastructure;
  no longer pass-through from clients.
- Tool service drops user-personalisation passthrough.

CLI + SDK
---------
- tg-init-workspace and workspace-aware import/export.
- All tg-* commands drop user args; accept --workspace.
- Python API/SDK (flow, socket_client, async_*, explainability,
  library) drop user kwargs from every method signature.

MCP server
----------
- All tool endpoints drop user parameters; socket_manager no longer
  keyed per user.

Flow service
------------
- Closure-based topic cleanup on flow stop: only delete topics
  whose blueprint template was parameterised AND no remaining
  live flow (across all workspaces) still resolves to that topic.
  Three scopes fall out naturally from template analysis:
    * {id} -> per-flow, deleted on stop
    * {blueprint} -> per-blueprint, kept while any flow of the
      same blueprint exists
    * {workspace} -> per-workspace, kept while any flow in the
      workspace exists
    * literal -> global, never deleted (e.g. tg.request.librarian)
  Fixes a bug where stopping a flow silently destroyed the global
  librarian exchange, wedging all library operations until manual
  restart.

RabbitMQ backend
----------------
- heartbeat=60, blocked_connection_timeout=300. Catches silently
  dead connections (broker restart, orphaned channels, network
  partitions) within ~2 heartbeat windows, so the consumer
  reconnects and re-binds its queue rather than sitting forever
  on a zombie connection.

Tests
-----
- Full test refresh: unit, integration, contract, provenance.
- Dropped user-field assertions and constructor kwargs across
  ~100 test files.
- Renamed user-collection isolation tests to workspace-collection.
2026-04-21 23:23:01 +01:00

369 lines
13 KiB
Python

"""
Integration tests for RAG service streaming protocol compliance.
These tests verify that RAG services correctly forward end_of_stream flags
and don't duplicate final chunks, ensuring proper streaming semantics.
"""
import pytest
from unittest.mock import AsyncMock, MagicMock, call
from trustgraph.retrieval.graph_rag.graph_rag import GraphRag
from trustgraph.retrieval.document_rag.document_rag import DocumentRag
from trustgraph.schema import EntityMatch, ChunkMatch, Term, IRI
from trustgraph.base import PromptResult
class TestGraphRagStreamingProtocol:
"""Integration tests for GraphRAG streaming protocol"""
@pytest.fixture
def mock_embeddings_client(self):
"""Mock embeddings client"""
client = AsyncMock()
client.embed.return_value = [[[0.1, 0.2, 0.3]]]
return client
@pytest.fixture
def mock_graph_embeddings_client(self):
"""Mock graph embeddings client"""
client = AsyncMock()
client.query.return_value = [
EntityMatch(entity=Term(type=IRI, iri="entity1"), score=0.95),
EntityMatch(entity=Term(type=IRI, iri="entity2"), score=0.90)
]
return client
@pytest.fixture
def mock_triples_client(self):
"""Mock triples client"""
client = AsyncMock()
client.query.return_value = []
return client
@pytest.fixture
def mock_streaming_prompt_client(self):
"""Mock prompt client that simulates realistic streaming with end_of_stream flags"""
client = AsyncMock()
async def prompt_side_effect(prompt_name, variables=None, streaming=False, chunk_callback=None):
if prompt_name == "kg-edge-selection":
return PromptResult(response_type="text", text="")
elif prompt_name == "kg-synthesis":
if streaming and chunk_callback:
# Simulate realistic streaming: chunks with end_of_stream=False, then final with end_of_stream=True
await chunk_callback("The", False)
await chunk_callback(" answer", False)
await chunk_callback(" is here.", False)
await chunk_callback("", True) # Empty final chunk with end_of_stream=True
return PromptResult(response_type="text", text="")
else:
return PromptResult(response_type="text", text="The answer is here.")
return PromptResult(response_type="text", text="")
client.prompt.side_effect = prompt_side_effect
return client
@pytest.fixture
def graph_rag(self, mock_embeddings_client, mock_graph_embeddings_client,
mock_triples_client, mock_streaming_prompt_client):
"""Create GraphRag instance with mocked dependencies"""
return GraphRag(
embeddings_client=mock_embeddings_client,
graph_embeddings_client=mock_graph_embeddings_client,
triples_client=mock_triples_client,
prompt_client=mock_streaming_prompt_client,
verbose=False
)
@pytest.mark.asyncio
async def test_callback_receives_end_of_stream_parameter(self, graph_rag):
"""Test that callback receives end_of_stream parameter"""
# Arrange
callback = AsyncMock()
# Act
await graph_rag.query(
query="test query",
collection="test_collection",
streaming=True,
chunk_callback=callback
)
# Assert - callback should receive (chunk, end_of_stream) signature
assert callback.call_count == 4
# All calls should have 2 arguments
for call_args in callback.call_args_list:
assert len(call_args.args) == 2, "Callback should receive (chunk, end_of_stream)"
@pytest.mark.asyncio
async def test_end_of_stream_flag_forwarded_correctly(self, graph_rag):
"""Test that end_of_stream flags are forwarded correctly"""
# Arrange
chunks_with_flags = []
async def collect(chunk, end_of_stream):
chunks_with_flags.append((chunk, end_of_stream))
# Act
await graph_rag.query(
query="test query",
collection="test_collection",
streaming=True,
chunk_callback=collect
)
# Assert
assert len(chunks_with_flags) == 4
# First three chunks should have end_of_stream=False
assert chunks_with_flags[0] == ("The", False)
assert chunks_with_flags[1] == (" answer", False)
assert chunks_with_flags[2] == (" is here.", False)
# Final chunk should have end_of_stream=True
assert chunks_with_flags[3] == ("", True)
@pytest.mark.asyncio
async def test_no_duplicate_final_chunk(self, graph_rag):
"""Test that final chunk is not duplicated"""
# Arrange
chunks = []
async def collect(chunk, end_of_stream):
chunks.append(chunk)
# Act
await graph_rag.query(
query="test query",
collection="test_collection",
streaming=True,
chunk_callback=collect
)
# Assert - should have exactly 4 chunks, no duplicates
assert len(chunks) == 4
assert chunks == ["The", " answer", " is here.", ""]
# The last chunk appears exactly once
assert chunks.count("") == 1
@pytest.mark.asyncio
async def test_exactly_one_end_of_stream_true(self, graph_rag):
"""Test that exactly one message has end_of_stream=True"""
# Arrange
end_of_stream_flags = []
async def collect(chunk, end_of_stream):
end_of_stream_flags.append(end_of_stream)
# Act
await graph_rag.query(
query="test query",
collection="test_collection",
streaming=True,
chunk_callback=collect
)
# Assert - exactly one True
assert end_of_stream_flags.count(True) == 1
assert end_of_stream_flags.count(False) == 3
@pytest.mark.asyncio
async def test_empty_final_chunk_preserved(self, graph_rag):
"""Test that empty final chunks are preserved and forwarded"""
# Arrange
final_chunk = None
final_flag = None
async def collect(chunk, end_of_stream):
nonlocal final_chunk, final_flag
if end_of_stream:
final_chunk = chunk
final_flag = end_of_stream
# Act
await graph_rag.query(
query="test query",
collection="test_collection",
streaming=True,
chunk_callback=collect
)
# Assert
assert final_flag is True
assert final_chunk == "", "Empty final chunk should be preserved"
class TestDocumentRagStreamingProtocol:
"""Integration tests for DocumentRAG streaming protocol"""
@pytest.fixture
def mock_embeddings_client(self):
"""Mock embeddings client"""
client = AsyncMock()
client.embed.return_value = [[[0.1, 0.2, 0.3]]]
return client
@pytest.fixture
def mock_doc_embeddings_client(self):
"""Mock document embeddings client that returns chunk matches"""
client = AsyncMock()
client.query.return_value = [
ChunkMatch(chunk_id="doc/c1", score=0.95),
ChunkMatch(chunk_id="doc/c2", score=0.90)
]
return client
@pytest.fixture
def mock_fetch_chunk(self):
"""Mock fetch_chunk function that retrieves chunk content from librarian"""
async def fetch(chunk_id, user):
return f"Content for {chunk_id}"
return fetch
@pytest.fixture
def mock_streaming_prompt_client(self):
"""Mock prompt client with streaming support"""
client = AsyncMock()
async def document_prompt_side_effect(query, documents, timeout=600, streaming=False, chunk_callback=None):
if streaming and chunk_callback:
# Simulate streaming with non-empty final chunk (some LLMs do this)
await chunk_callback("Document", False)
await chunk_callback(" summary", False)
await chunk_callback(".", True) # Non-empty final chunk
return PromptResult(response_type="text", text="")
else:
return PromptResult(response_type="text", text="Document summary.")
client.document_prompt.side_effect = document_prompt_side_effect
# Mock prompt() for extract-concepts call in DocumentRag
client.prompt.return_value = PromptResult(response_type="text", text="")
return client
@pytest.fixture
def document_rag(self, mock_embeddings_client, mock_doc_embeddings_client,
mock_streaming_prompt_client, mock_fetch_chunk):
"""Create DocumentRag instance with mocked dependencies"""
return DocumentRag(
embeddings_client=mock_embeddings_client,
doc_embeddings_client=mock_doc_embeddings_client,
prompt_client=mock_streaming_prompt_client,
fetch_chunk=mock_fetch_chunk,
verbose=False
)
@pytest.mark.asyncio
async def test_callback_receives_end_of_stream_parameter(self, document_rag):
"""Test that callback receives end_of_stream parameter"""
# Arrange
callback = AsyncMock()
# Act
await document_rag.query(
query="test query",
collection="test_collection",
streaming=True,
chunk_callback=callback
)
# Assert
assert callback.call_count == 3
for call_args in callback.call_args_list:
assert len(call_args.args) == 2
@pytest.mark.asyncio
async def test_non_empty_final_chunk_preserved(self, document_rag):
"""Test that non-empty final chunks are preserved with correct flag"""
# Arrange
chunks_with_flags = []
async def collect(chunk, end_of_stream):
chunks_with_flags.append((chunk, end_of_stream))
# Act
await document_rag.query(
query="test query",
collection="test_collection",
streaming=True,
chunk_callback=collect
)
# Assert
assert len(chunks_with_flags) == 3
assert chunks_with_flags[0] == ("Document", False)
assert chunks_with_flags[1] == (" summary", False)
assert chunks_with_flags[2] == (".", True) # Non-empty final chunk
@pytest.mark.asyncio
async def test_no_duplicate_final_chunk(self, document_rag):
"""Test that final chunk is not duplicated"""
# Arrange
chunks = []
async def collect(chunk, end_of_stream):
chunks.append(chunk)
# Act
await document_rag.query(
query="test query",
collection="test_collection",
streaming=True,
chunk_callback=collect
)
# Assert - final "." appears exactly once
assert chunks.count(".") == 1
assert chunks == ["Document", " summary", "."]
class TestStreamingProtocolEdgeCases:
"""Test edge cases in streaming protocol"""
@pytest.mark.asyncio
async def test_multiple_empty_chunks_before_final(self):
"""Test handling of multiple empty chunks (edge case)"""
# Arrange
client = AsyncMock()
async def prompt_with_empties(prompt_name, variables=None, streaming=False, chunk_callback=None):
if prompt_name == "kg-edge-selection":
return PromptResult(response_type="text", text="")
elif prompt_name == "kg-synthesis":
if streaming and chunk_callback:
await chunk_callback("text", False)
await chunk_callback("", False) # Empty but not final
await chunk_callback("more", False)
await chunk_callback("", True) # Empty and final
return PromptResult(response_type="text", text="")
else:
return PromptResult(response_type="text", text="textmore")
return PromptResult(response_type="text", text="")
client.prompt.side_effect = prompt_with_empties
rag = GraphRag(
embeddings_client=AsyncMock(embed=AsyncMock(return_value=[[[0.1]]])),
graph_embeddings_client=AsyncMock(query=AsyncMock(return_value=[])),
triples_client=AsyncMock(query=AsyncMock(return_value=[])),
prompt_client=client,
verbose=False
)
chunks_with_flags = []
async def collect(chunk, end_of_stream):
chunks_with_flags.append((chunk, end_of_stream))
# Act
await rag.query(
query="test",
streaming=True,
chunk_callback=collect
)
# Assert
assert len(chunks_with_flags) == 4
assert chunks_with_flags[-1] == ("", True) # Final empty chunk
end_of_stream_flags = [f for c, f in chunks_with_flags]
assert end_of_stream_flags.count(True) == 1