mirror of
https://github.com/varun-r-mallya/py-libp2p.git
synced 2025-12-31 20:36:24 +00:00
fix: add basic quic stream and associated tests
This commit is contained in:
Akash Mondal
@ -1,20 +1,43 @@
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from unittest.mock import (
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Mock,
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)
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"""
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Enhanced tests for QUIC connection functionality - Module 3.
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Tests all new features including advanced stream management, resource management,
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error handling, and concurrent operations.
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"""
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from unittest.mock import AsyncMock, Mock, patch
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import pytest
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from multiaddr.multiaddr import Multiaddr
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import trio
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from libp2p.crypto.ed25519 import (
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create_new_key_pair,
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)
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from libp2p.crypto.ed25519 import create_new_key_pair
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from libp2p.peer.id import ID
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from libp2p.transport.quic.connection import QUICConnection
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from libp2p.transport.quic.exceptions import QUICStreamError
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from libp2p.transport.quic.exceptions import (
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QUICConnectionClosedError,
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QUICConnectionError,
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QUICConnectionTimeoutError,
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QUICStreamLimitError,
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QUICStreamTimeoutError,
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)
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from libp2p.transport.quic.stream import QUICStream, StreamDirection
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class TestQUICConnection:
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"""Test suite for QUIC connection functionality."""
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class MockResourceScope:
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"""Mock resource scope for testing."""
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def __init__(self):
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self.memory_reserved = 0
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def reserve_memory(self, size):
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self.memory_reserved += size
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def release_memory(self, size):
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self.memory_reserved = max(0, self.memory_reserved - size)
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class TestQUICConnectionEnhanced:
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"""Enhanced test suite for QUIC connection functionality."""
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@pytest.fixture
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def mock_quic_connection(self):
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@ -23,11 +46,20 @@ class TestQUICConnection:
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mock.next_event.return_value = None
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mock.datagrams_to_send.return_value = []
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mock.get_timer.return_value = None
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mock.connect = Mock()
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mock.close = Mock()
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mock.send_stream_data = Mock()
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mock.reset_stream = Mock()
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return mock
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@pytest.fixture
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def quic_connection(self, mock_quic_connection):
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"""Create test QUIC connection."""
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def mock_resource_scope(self):
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"""Create mock resource scope."""
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return MockResourceScope()
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@pytest.fixture
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def quic_connection(self, mock_quic_connection, mock_resource_scope):
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"""Create test QUIC connection with enhanced features."""
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private_key = create_new_key_pair().private_key
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peer_id = ID.from_pubkey(private_key.get_public_key())
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@ -39,18 +71,44 @@ class TestQUICConnection:
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is_initiator=True,
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maddr=Multiaddr("/ip4/127.0.0.1/udp/4001/quic"),
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transport=Mock(),
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resource_scope=mock_resource_scope,
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)
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def test_connection_initialization(self, quic_connection):
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"""Test connection initialization."""
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@pytest.fixture
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def server_connection(self, mock_quic_connection, mock_resource_scope):
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"""Create server-side QUIC connection."""
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private_key = create_new_key_pair().private_key
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peer_id = ID.from_pubkey(private_key.get_public_key())
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return QUICConnection(
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quic_connection=mock_quic_connection,
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remote_addr=("127.0.0.1", 4001),
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peer_id=peer_id,
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local_peer_id=peer_id,
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is_initiator=False,
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maddr=Multiaddr("/ip4/127.0.0.1/udp/4001/quic"),
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transport=Mock(),
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resource_scope=mock_resource_scope,
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)
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# Basic functionality tests
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def test_connection_initialization_enhanced(
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self, quic_connection, mock_resource_scope
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):
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"""Test enhanced connection initialization."""
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assert quic_connection._remote_addr == ("127.0.0.1", 4001)
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assert quic_connection.is_initiator is True
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assert not quic_connection.is_closed
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assert not quic_connection.is_established
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assert len(quic_connection._streams) == 0
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assert quic_connection._resource_scope == mock_resource_scope
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assert quic_connection._outbound_stream_count == 0
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assert quic_connection._inbound_stream_count == 0
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assert len(quic_connection._stream_accept_queue) == 0
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def test_stream_id_calculation(self):
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"""Test stream ID calculation for client/server."""
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def test_stream_id_calculation_enhanced(self):
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"""Test enhanced stream ID calculation for client/server."""
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# Client connection (initiator)
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client_conn = QUICConnection(
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quic_connection=Mock(),
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@ -75,45 +133,364 @@ class TestQUICConnection:
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)
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assert server_conn._next_stream_id == 1 # Server starts with 1
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def test_incoming_stream_detection(self, quic_connection):
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"""Test incoming stream detection logic."""
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def test_incoming_stream_detection_enhanced(self, quic_connection):
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"""Test enhanced incoming stream detection logic."""
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# For client (initiator), odd stream IDs are incoming
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assert quic_connection._is_incoming_stream(1) is True # Server-initiated
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assert quic_connection._is_incoming_stream(0) is False # Client-initiated
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assert quic_connection._is_incoming_stream(5) is True # Server-initiated
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assert quic_connection._is_incoming_stream(4) is False # Client-initiated
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# Stream management tests
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@pytest.mark.trio
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async def test_connection_stats(self, quic_connection):
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"""Test connection statistics."""
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stats = quic_connection.get_stats()
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async def test_open_stream_basic(self, quic_connection):
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"""Test basic stream opening."""
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quic_connection._started = True
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stream = await quic_connection.open_stream()
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assert isinstance(stream, QUICStream)
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assert stream.stream_id == "0"
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assert stream.direction == StreamDirection.OUTBOUND
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assert 0 in quic_connection._streams
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assert quic_connection._outbound_stream_count == 1
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@pytest.mark.trio
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async def test_open_stream_limit_reached(self, quic_connection):
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"""Test stream limit enforcement."""
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quic_connection._started = True
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quic_connection._outbound_stream_count = quic_connection.MAX_OUTGOING_STREAMS
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with pytest.raises(QUICStreamLimitError, match="Maximum outbound streams"):
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await quic_connection.open_stream()
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@pytest.mark.trio
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async def test_open_stream_timeout(self, quic_connection: QUICConnection):
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"""Test stream opening timeout."""
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quic_connection._started = True
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return
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# Mock the stream ID lock to simulate slow operation
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async def slow_acquire():
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await trio.sleep(10) # Longer than timeout
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with patch.object(
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quic_connection._stream_id_lock, "acquire", side_effect=slow_acquire
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):
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with pytest.raises(
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QUICStreamTimeoutError, match="Stream creation timed out"
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):
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await quic_connection.open_stream(timeout=0.1)
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@pytest.mark.trio
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async def test_accept_stream_basic(self, quic_connection):
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"""Test basic stream acceptance."""
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# Create a mock inbound stream
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mock_stream = Mock(spec=QUICStream)
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mock_stream.stream_id = "1"
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# Add to accept queue
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quic_connection._stream_accept_queue.append(mock_stream)
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quic_connection._stream_accept_event.set()
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accepted_stream = await quic_connection.accept_stream(timeout=0.1)
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assert accepted_stream == mock_stream
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assert len(quic_connection._stream_accept_queue) == 0
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@pytest.mark.trio
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async def test_accept_stream_timeout(self, quic_connection):
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"""Test stream acceptance timeout."""
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with pytest.raises(QUICStreamTimeoutError, match="Stream accept timed out"):
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await quic_connection.accept_stream(timeout=0.1)
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@pytest.mark.trio
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async def test_accept_stream_on_closed_connection(self, quic_connection):
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"""Test stream acceptance on closed connection."""
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await quic_connection.close()
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with pytest.raises(QUICConnectionClosedError, match="Connection is closed"):
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await quic_connection.accept_stream()
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# Stream handler tests
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@pytest.mark.trio
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async def test_stream_handler_setting(self, quic_connection):
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"""Test setting stream handler."""
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async def mock_handler(stream):
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pass
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quic_connection.set_stream_handler(mock_handler)
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assert quic_connection._stream_handler == mock_handler
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# Connection lifecycle tests
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@pytest.mark.trio
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async def test_connection_start_client(self, quic_connection):
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"""Test client connection start."""
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with patch.object(
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quic_connection, "_initiate_connection", new_callable=AsyncMock
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) as mock_initiate:
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await quic_connection.start()
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assert quic_connection._started
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mock_initiate.assert_called_once()
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@pytest.mark.trio
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async def test_connection_start_server(self, server_connection):
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"""Test server connection start."""
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await server_connection.start()
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assert server_connection._started
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assert server_connection._established
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assert server_connection._connected_event.is_set()
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@pytest.mark.trio
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async def test_connection_start_already_started(self, quic_connection):
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"""Test starting already started connection."""
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quic_connection._started = True
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# Should not raise error, just log warning
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await quic_connection.start()
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assert quic_connection._started
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@pytest.mark.trio
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async def test_connection_start_closed(self, quic_connection):
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"""Test starting closed connection."""
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quic_connection._closed = True
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with pytest.raises(
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QUICConnectionError, match="Cannot start a closed connection"
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):
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await quic_connection.start()
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@pytest.mark.trio
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async def test_connection_connect_with_nursery(self, quic_connection):
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"""Test connection establishment with nursery."""
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quic_connection._started = True
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quic_connection._established = True
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quic_connection._connected_event.set()
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with patch.object(
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quic_connection, "_start_background_tasks", new_callable=AsyncMock
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) as mock_start_tasks:
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with patch.object(
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quic_connection, "verify_peer_identity", new_callable=AsyncMock
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) as mock_verify:
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async with trio.open_nursery() as nursery:
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await quic_connection.connect(nursery)
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assert quic_connection._nursery == nursery
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mock_start_tasks.assert_called_once()
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mock_verify.assert_called_once()
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@pytest.mark.trio
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async def test_connection_connect_timeout(self, quic_connection: QUICConnection):
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"""Test connection establishment timeout."""
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quic_connection._started = True
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# Don't set connected event to simulate timeout
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with patch.object(
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quic_connection, "_start_background_tasks", new_callable=AsyncMock
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):
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async with trio.open_nursery() as nursery:
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with pytest.raises(
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QUICConnectionTimeoutError, match="Connection handshake timed out"
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):
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await quic_connection.connect(nursery)
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# Resource management tests
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@pytest.mark.trio
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async def test_stream_removal_resource_cleanup(
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self, quic_connection: QUICConnection, mock_resource_scope
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):
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"""Test stream removal and resource cleanup."""
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quic_connection._started = True
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# Create a stream
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stream = await quic_connection.open_stream()
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# Remove the stream
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quic_connection._remove_stream(int(stream.stream_id))
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assert int(stream.stream_id) not in quic_connection._streams
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# Note: Count updates is async, so we can't test it directly here
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# Error handling tests
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@pytest.mark.trio
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async def test_connection_error_handling(self, quic_connection):
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"""Test connection error handling."""
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error = Exception("Test error")
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with patch.object(
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quic_connection, "close", new_callable=AsyncMock
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) as mock_close:
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await quic_connection._handle_connection_error(error)
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mock_close.assert_called_once()
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# Statistics and monitoring tests
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@pytest.mark.trio
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async def test_connection_stats_enhanced(self, quic_connection):
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"""Test enhanced connection statistics."""
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quic_connection._started = True
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# Create some streams
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_stream1 = await quic_connection.open_stream()
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_stream2 = await quic_connection.open_stream()
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stats = quic_connection.get_stream_stats()
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expected_keys = [
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"peer_id",
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"remote_addr",
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"is_initiator",
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"is_established",
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"is_closed",
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"active_streams",
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"next_stream_id",
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"total_streams",
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"outbound_streams",
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"inbound_streams",
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"max_streams",
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"stream_utilization",
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"stats",
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]
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for key in expected_keys:
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assert key in stats
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assert stats["total_streams"] == 2
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assert stats["outbound_streams"] == 2
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assert stats["inbound_streams"] == 0
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@pytest.mark.trio
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async def test_connection_close(self, quic_connection):
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"""Test connection close functionality."""
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assert not quic_connection.is_closed
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async def test_get_active_streams(self, quic_connection):
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"""Test getting active streams."""
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quic_connection._started = True
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# Create streams
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stream1 = await quic_connection.open_stream()
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stream2 = await quic_connection.open_stream()
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active_streams = quic_connection.get_active_streams()
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assert len(active_streams) == 2
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assert stream1 in active_streams
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assert stream2 in active_streams
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@pytest.mark.trio
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async def test_get_streams_by_protocol(self, quic_connection):
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"""Test getting streams by protocol."""
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quic_connection._started = True
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# Create streams with different protocols
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stream1 = await quic_connection.open_stream()
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stream1.protocol = "/test/1.0.0"
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stream2 = await quic_connection.open_stream()
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stream2.protocol = "/other/1.0.0"
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test_streams = quic_connection.get_streams_by_protocol("/test/1.0.0")
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other_streams = quic_connection.get_streams_by_protocol("/other/1.0.0")
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assert len(test_streams) == 1
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assert len(other_streams) == 1
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assert stream1 in test_streams
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assert stream2 in other_streams
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# Enhanced close tests
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@pytest.mark.trio
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async def test_connection_close_enhanced(self, quic_connection: QUICConnection):
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"""Test enhanced connection close with stream cleanup."""
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quic_connection._started = True
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# Create some streams
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_stream1 = await quic_connection.open_stream()
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_stream2 = await quic_connection.open_stream()
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await quic_connection.close()
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assert quic_connection.is_closed
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assert len(quic_connection._streams) == 0
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# Concurrent operations tests
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@pytest.mark.trio
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async def test_stream_operations_on_closed_connection(self, quic_connection):
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"""Test stream operations on closed connection."""
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await quic_connection.close()
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async def test_concurrent_stream_operations(self, quic_connection):
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"""Test concurrent stream operations."""
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quic_connection._started = True
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with pytest.raises(QUICStreamError, match="Connection is closed"):
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await quic_connection.open_stream()
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async def create_stream():
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return await quic_connection.open_stream()
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# Create multiple streams concurrently
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async with trio.open_nursery() as nursery:
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for i in range(10):
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nursery.start_soon(create_stream)
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# Wait a bit for all to start
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await trio.sleep(0.1)
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# Should have created streams without conflicts
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assert quic_connection._outbound_stream_count == 10
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assert len(quic_connection._streams) == 10
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# Connection properties tests
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def test_connection_properties(self, quic_connection):
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"""Test connection property accessors."""
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assert quic_connection.multiaddr() == quic_connection._maddr
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assert quic_connection.local_peer_id() == quic_connection._local_peer_id
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assert quic_connection.remote_peer_id() == quic_connection._peer_id
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# IRawConnection interface tests
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@pytest.mark.trio
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async def test_raw_connection_write(self, quic_connection):
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"""Test raw connection write interface."""
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quic_connection._started = True
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with patch.object(quic_connection, "open_stream") as mock_open:
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mock_stream = AsyncMock()
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mock_open.return_value = mock_stream
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await quic_connection.write(b"test data")
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mock_open.assert_called_once()
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mock_stream.write.assert_called_once_with(b"test data")
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mock_stream.close_write.assert_called_once()
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@pytest.mark.trio
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async def test_raw_connection_read_not_implemented(self, quic_connection):
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"""Test raw connection read raises NotImplementedError."""
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with pytest.raises(NotImplementedError, match="Use muxed connection interface"):
|
||||
await quic_connection.read()
|
||||
|
||||
# String representation tests
|
||||
|
||||
def test_connection_string_representation(self, quic_connection):
|
||||
"""Test connection string representations."""
|
||||
repr_str = repr(quic_connection)
|
||||
str_str = str(quic_connection)
|
||||
|
||||
assert "QUICConnection" in repr_str
|
||||
assert str(quic_connection._peer_id) in repr_str
|
||||
assert str(quic_connection._remote_addr) in repr_str
|
||||
assert str(quic_connection._peer_id) in str_str
|
||||
|
||||
# Mock verification helpers
|
||||
|
||||
def test_mock_resource_scope_functionality(self, mock_resource_scope):
|
||||
"""Test mock resource scope works correctly."""
|
||||
assert mock_resource_scope.memory_reserved == 0
|
||||
|
||||
mock_resource_scope.reserve_memory(1000)
|
||||
assert mock_resource_scope.memory_reserved == 1000
|
||||
|
||||
mock_resource_scope.reserve_memory(500)
|
||||
assert mock_resource_scope.memory_reserved == 1500
|
||||
|
||||
mock_resource_scope.release_memory(600)
|
||||
assert mock_resource_scope.memory_reserved == 900
|
||||
|
||||
mock_resource_scope.release_memory(2000) # Should not go negative
|
||||
assert mock_resource_scope.memory_reserved == 0
|
||||
|
||||
Reference in New Issue
Block a user