mirror of
https://github.com/trustgraph-ai/trustgraph.git
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Config push notify pattern: replace stateful pub/sub with signal+ fetch (#760)
Replace the config push mechanism that broadcast the full config blob on a 'state' class pub/sub queue with a lightweight notify signal containing only the version number and affected config types. Processors fetch the full config via request/response from the config service when notified. This eliminates the need for the pub/sub 'state' queue class and stateful pub/sub services entirely. The config push queue moves from 'state' to 'flow' class — a simple transient signal rather than a retained message. This solves the RabbitMQ late-subscriber problem where restarting processes never received the current config because their fresh queue had no historical messages. Key changes: - ConfigPush schema: config dict replaced with types list - Subscribe-then-fetch startup with retry: processors subscribe to notify queue, fetch config via request/response, then process buffered notifies with version comparison to avoid race conditions - register_config_handler() accepts optional types parameter so handlers only fire when their config types change - Short-lived config request/response clients to avoid subscriber contention on non-persistent response topics - Config service passes affected types through put/delete/flow operations - Gateway ConfigReceiver rewritten with same notify pattern and retry loop Tests updated New tests: - register_config_handler: without types, with types, multiple types, multiple handlers - on_config_notify: old/same version skipped, irrelevant types skipped (version still updated), relevant type triggers fetch, handler without types always called, mixed handler filtering, empty types invokes all, fetch failure handled gracefully - fetch_config: returns config+version, raises on error response, stops client even on exception - fetch_and_apply_config: applies to all handlers on startup, retries on failure
This commit is contained in:
cybermaggedon
GitHub
parent
d4723566cb
commit
4acd853023
37 changed files with 1449 additions and 406 deletions
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@ -5,7 +5,7 @@ Tests for Gateway Config Receiver
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import pytest
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import asyncio
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import json
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from unittest.mock import Mock, patch, Mock, MagicMock
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from unittest.mock import Mock, patch, MagicMock, AsyncMock
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import uuid
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from trustgraph.gateway.config.receiver import ConfigReceiver
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@ -23,174 +23,237 @@ class TestConfigReceiver:
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def test_config_receiver_initialization(self):
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"""Test ConfigReceiver initialization"""
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mock_backend = Mock()
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config_receiver = ConfigReceiver(mock_backend)
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assert config_receiver.backend == mock_backend
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assert config_receiver.flow_handlers == []
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assert config_receiver.flows == {}
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assert config_receiver.config_version == 0
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def test_add_handler(self):
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"""Test adding flow handlers"""
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mock_backend = Mock()
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config_receiver = ConfigReceiver(mock_backend)
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handler1 = Mock()
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handler2 = Mock()
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config_receiver.add_handler(handler1)
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config_receiver.add_handler(handler2)
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assert len(config_receiver.flow_handlers) == 2
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assert handler1 in config_receiver.flow_handlers
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assert handler2 in config_receiver.flow_handlers
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@pytest.mark.asyncio
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async def test_on_config_with_new_flows(self):
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"""Test on_config method with new flows"""
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async def test_on_config_notify_new_version(self):
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"""Test on_config_notify triggers fetch for newer version"""
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mock_backend = Mock()
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config_receiver = ConfigReceiver(mock_backend)
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# Track calls manually instead of using AsyncMock
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start_flow_calls = []
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async def mock_start_flow(*args):
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start_flow_calls.append(args)
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config_receiver.start_flow = mock_start_flow
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# Create mock message with flows
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config_receiver.config_version = 1
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# Mock fetch_and_apply
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fetch_calls = []
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async def mock_fetch(**kwargs):
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fetch_calls.append(kwargs)
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config_receiver.fetch_and_apply = mock_fetch
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# Create notify message with newer version
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mock_msg = Mock()
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mock_msg.value.return_value = Mock(
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version="1.0",
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config={
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"flow": {
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"flow1": '{"name": "test_flow_1", "steps": []}',
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"flow2": '{"name": "test_flow_2", "steps": []}'
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}
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}
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)
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await config_receiver.on_config(mock_msg, None, None)
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# Verify flows were added
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assert "flow1" in config_receiver.flows
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assert "flow2" in config_receiver.flows
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assert config_receiver.flows["flow1"] == {"name": "test_flow_1", "steps": []}
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assert config_receiver.flows["flow2"] == {"name": "test_flow_2", "steps": []}
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# Verify start_flow was called for each new flow
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assert len(start_flow_calls) == 2
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assert ("flow1", {"name": "test_flow_1", "steps": []}) in start_flow_calls
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assert ("flow2", {"name": "test_flow_2", "steps": []}) in start_flow_calls
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mock_msg.value.return_value = Mock(version=2, types=["flow"])
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await config_receiver.on_config_notify(mock_msg, None, None)
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assert len(fetch_calls) == 1
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@pytest.mark.asyncio
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async def test_on_config_with_removed_flows(self):
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"""Test on_config method with removed flows"""
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async def test_on_config_notify_old_version_ignored(self):
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"""Test on_config_notify ignores older versions"""
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mock_backend = Mock()
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config_receiver = ConfigReceiver(mock_backend)
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# Pre-populate with existing flows
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config_receiver.flows = {
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"flow1": {"name": "test_flow_1", "steps": []},
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"flow2": {"name": "test_flow_2", "steps": []}
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}
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# Track calls manually instead of using AsyncMock
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stop_flow_calls = []
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async def mock_stop_flow(*args):
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stop_flow_calls.append(args)
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config_receiver.stop_flow = mock_stop_flow
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# Create mock message with only flow1 (flow2 removed)
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config_receiver.config_version = 5
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fetch_calls = []
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async def mock_fetch(**kwargs):
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fetch_calls.append(kwargs)
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config_receiver.fetch_and_apply = mock_fetch
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# Create notify message with older version
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mock_msg = Mock()
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mock_msg.value.return_value = Mock(
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version="1.0",
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config={
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"flow": {
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"flow1": '{"name": "test_flow_1", "steps": []}'
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}
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}
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)
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await config_receiver.on_config(mock_msg, None, None)
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# Verify flow2 was removed
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assert "flow1" in config_receiver.flows
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assert "flow2" not in config_receiver.flows
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# Verify stop_flow was called for removed flow
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assert len(stop_flow_calls) == 1
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assert stop_flow_calls[0] == ("flow2", {"name": "test_flow_2", "steps": []})
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mock_msg.value.return_value = Mock(version=3, types=["flow"])
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await config_receiver.on_config_notify(mock_msg, None, None)
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assert len(fetch_calls) == 0
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@pytest.mark.asyncio
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async def test_on_config_with_no_flows(self):
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"""Test on_config method with no flows in config"""
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async def test_on_config_notify_irrelevant_types_ignored(self):
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"""Test on_config_notify ignores types the gateway doesn't care about"""
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mock_backend = Mock()
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config_receiver = ConfigReceiver(mock_backend)
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# Mock the start_flow and stop_flow methods with async functions
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async def mock_start_flow(*args):
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pass
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async def mock_stop_flow(*args):
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pass
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config_receiver.start_flow = mock_start_flow
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config_receiver.stop_flow = mock_stop_flow
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# Create mock message without flows
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config_receiver.config_version = 1
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fetch_calls = []
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async def mock_fetch(**kwargs):
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fetch_calls.append(kwargs)
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config_receiver.fetch_and_apply = mock_fetch
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# Create notify message with non-flow type
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mock_msg = Mock()
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mock_msg.value.return_value = Mock(
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version="1.0",
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config={}
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)
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await config_receiver.on_config(mock_msg, None, None)
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# Verify no flows were added
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assert config_receiver.flows == {}
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# Since no flows were in the config, the flow methods shouldn't be called
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# (We can't easily assert this with simple async functions, but the test
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# passes if no exceptions are thrown)
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mock_msg.value.return_value = Mock(version=2, types=["prompt"])
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await config_receiver.on_config_notify(mock_msg, None, None)
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# Version should be updated but no fetch
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assert len(fetch_calls) == 0
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assert config_receiver.config_version == 2
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@pytest.mark.asyncio
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async def test_on_config_exception_handling(self):
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"""Test on_config method handles exceptions gracefully"""
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async def test_on_config_notify_flow_type_triggers_fetch(self):
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"""Test on_config_notify fetches for flow-related types"""
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mock_backend = Mock()
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config_receiver = ConfigReceiver(mock_backend)
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# Create mock message that will cause an exception
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config_receiver.config_version = 1
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fetch_calls = []
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async def mock_fetch(**kwargs):
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fetch_calls.append(kwargs)
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config_receiver.fetch_and_apply = mock_fetch
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for type_name in ["flow", "active-flow"]:
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fetch_calls.clear()
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config_receiver.config_version = 1
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mock_msg = Mock()
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mock_msg.value.return_value = Mock(version=2, types=[type_name])
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await config_receiver.on_config_notify(mock_msg, None, None)
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assert len(fetch_calls) == 1, f"Expected fetch for type {type_name}"
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@pytest.mark.asyncio
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async def test_on_config_notify_exception_handling(self):
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"""Test on_config_notify handles exceptions gracefully"""
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mock_backend = Mock()
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config_receiver = ConfigReceiver(mock_backend)
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# Create notify message that causes an exception
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mock_msg = Mock()
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mock_msg.value.side_effect = Exception("Test exception")
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# This should not raise an exception
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await config_receiver.on_config(mock_msg, None, None)
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# Verify flows remain empty
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# Should not raise
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await config_receiver.on_config_notify(mock_msg, None, None)
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@pytest.mark.asyncio
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async def test_fetch_and_apply_with_new_flows(self):
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"""Test fetch_and_apply starts new flows"""
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mock_backend = Mock()
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config_receiver = ConfigReceiver(mock_backend)
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# Mock config_client
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mock_resp = Mock()
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mock_resp.error = None
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mock_resp.version = 5
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mock_resp.config = {
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"flow": {
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"flow1": '{"name": "test_flow_1"}',
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"flow2": '{"name": "test_flow_2"}'
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}
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}
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mock_client = AsyncMock()
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mock_client.request.return_value = mock_resp
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config_receiver.config_client = mock_client
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start_flow_calls = []
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async def mock_start_flow(id, flow):
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start_flow_calls.append((id, flow))
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config_receiver.start_flow = mock_start_flow
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await config_receiver.fetch_and_apply()
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assert config_receiver.config_version == 5
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assert "flow1" in config_receiver.flows
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assert "flow2" in config_receiver.flows
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assert len(start_flow_calls) == 2
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@pytest.mark.asyncio
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async def test_fetch_and_apply_with_removed_flows(self):
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"""Test fetch_and_apply stops removed flows"""
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mock_backend = Mock()
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config_receiver = ConfigReceiver(mock_backend)
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# Pre-populate with existing flows
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config_receiver.flows = {
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"flow1": {"name": "test_flow_1"},
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"flow2": {"name": "test_flow_2"}
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}
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# Config now only has flow1
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mock_resp = Mock()
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mock_resp.error = None
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mock_resp.version = 5
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mock_resp.config = {
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"flow": {
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"flow1": '{"name": "test_flow_1"}'
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}
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}
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mock_client = AsyncMock()
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mock_client.request.return_value = mock_resp
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config_receiver.config_client = mock_client
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stop_flow_calls = []
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async def mock_stop_flow(id, flow):
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stop_flow_calls.append((id, flow))
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config_receiver.stop_flow = mock_stop_flow
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await config_receiver.fetch_and_apply()
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assert "flow1" in config_receiver.flows
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assert "flow2" not in config_receiver.flows
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assert len(stop_flow_calls) == 1
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assert stop_flow_calls[0][0] == "flow2"
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@pytest.mark.asyncio
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async def test_fetch_and_apply_with_no_flows(self):
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"""Test fetch_and_apply with empty config"""
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mock_backend = Mock()
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config_receiver = ConfigReceiver(mock_backend)
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mock_resp = Mock()
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mock_resp.error = None
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mock_resp.version = 1
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mock_resp.config = {}
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mock_client = AsyncMock()
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mock_client.request.return_value = mock_resp
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config_receiver.config_client = mock_client
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await config_receiver.fetch_and_apply()
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assert config_receiver.flows == {}
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assert config_receiver.config_version == 1
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@pytest.mark.asyncio
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async def test_start_flow_with_handlers(self):
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"""Test start_flow method with multiple handlers"""
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mock_backend = Mock()
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config_receiver = ConfigReceiver(mock_backend)
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# Add mock handlers
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handler1 = Mock()
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handler1.start_flow = Mock()
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handler2 = Mock()
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handler2.start_flow = Mock()
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config_receiver.add_handler(handler1)
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config_receiver.add_handler(handler2)
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flow_data = {"name": "test_flow", "steps": []}
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await config_receiver.start_flow("flow1", flow_data)
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# Verify all handlers were called
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handler1.start_flow.assert_called_once_with("flow1", flow_data)
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handler2.start_flow.assert_called_once_with("flow1", flow_data)
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@ -199,19 +262,17 @@ class TestConfigReceiver:
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"""Test start_flow method handles handler exceptions"""
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mock_backend = Mock()
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config_receiver = ConfigReceiver(mock_backend)
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# Add mock handler that raises exception
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handler = Mock()
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handler.start_flow = Mock(side_effect=Exception("Handler error"))
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config_receiver.add_handler(handler)
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flow_data = {"name": "test_flow", "steps": []}
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# This should not raise an exception
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# Should not raise
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await config_receiver.start_flow("flow1", flow_data)
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# Verify handler was called
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handler.start_flow.assert_called_once_with("flow1", flow_data)
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@pytest.mark.asyncio
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@ -219,21 +280,19 @@ class TestConfigReceiver:
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"""Test stop_flow method with multiple handlers"""
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mock_backend = Mock()
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config_receiver = ConfigReceiver(mock_backend)
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# Add mock handlers
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handler1 = Mock()
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handler1.stop_flow = Mock()
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handler2 = Mock()
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handler2.stop_flow = Mock()
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config_receiver.add_handler(handler1)
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config_receiver.add_handler(handler2)
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flow_data = {"name": "test_flow", "steps": []}
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await config_receiver.stop_flow("flow1", flow_data)
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# Verify all handlers were called
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handler1.stop_flow.assert_called_once_with("flow1", flow_data)
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handler2.stop_flow.assert_called_once_with("flow1", flow_data)
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@ -242,167 +301,77 @@ class TestConfigReceiver:
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"""Test stop_flow method handles handler exceptions"""
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mock_backend = Mock()
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config_receiver = ConfigReceiver(mock_backend)
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# Add mock handler that raises exception
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handler = Mock()
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handler.stop_flow = Mock(side_effect=Exception("Handler error"))
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config_receiver.add_handler(handler)
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flow_data = {"name": "test_flow", "steps": []}
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# This should not raise an exception
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# Should not raise
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await config_receiver.stop_flow("flow1", flow_data)
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# Verify handler was called
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handler.stop_flow.assert_called_once_with("flow1", flow_data)
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@pytest.mark.asyncio
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async def test_config_loader_creates_consumer(self):
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"""Test config_loader method creates Pulsar consumer"""
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mock_backend = Mock()
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config_receiver = ConfigReceiver(mock_backend)
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# Temporarily restore the real config_loader for this test
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config_receiver.config_loader = _real_config_loader.__get__(config_receiver)
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# Mock Consumer class
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with patch('trustgraph.gateway.config.receiver.Consumer') as mock_consumer_class, \
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patch('uuid.uuid4') as mock_uuid:
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mock_uuid.return_value = "test-uuid"
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mock_consumer = Mock()
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async def mock_start():
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pass
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mock_consumer.start = mock_start
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mock_consumer_class.return_value = mock_consumer
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# Create a task that will complete quickly
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async def quick_task():
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await config_receiver.config_loader()
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# Run the task with a timeout to prevent hanging
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try:
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await asyncio.wait_for(quick_task(), timeout=0.1)
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except asyncio.TimeoutError:
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# This is expected since the method runs indefinitely
|
||||
pass
|
||||
|
||||
# Verify Consumer was created with correct parameters
|
||||
mock_consumer_class.assert_called_once()
|
||||
call_args = mock_consumer_class.call_args
|
||||
|
||||
assert call_args[1]['backend'] == mock_backend
|
||||
assert call_args[1]['subscriber'] == "gateway-test-uuid"
|
||||
assert call_args[1]['handler'] == config_receiver.on_config
|
||||
assert call_args[1]['start_of_messages'] is True
|
||||
|
||||
@patch('asyncio.create_task')
|
||||
@pytest.mark.asyncio
|
||||
async def test_start_creates_config_loader_task(self, mock_create_task):
|
||||
"""Test start method creates config loader task"""
|
||||
mock_backend = Mock()
|
||||
config_receiver = ConfigReceiver(mock_backend)
|
||||
|
||||
# Mock create_task to avoid actually creating tasks with real coroutines
|
||||
|
||||
mock_task = Mock()
|
||||
mock_create_task.return_value = mock_task
|
||||
|
||||
|
||||
await config_receiver.start()
|
||||
|
||||
# Verify task was created
|
||||
|
||||
mock_create_task.assert_called_once()
|
||||
|
||||
# Verify the argument passed to create_task is a coroutine
|
||||
call_args = mock_create_task.call_args[0]
|
||||
assert len(call_args) == 1 # Should have one argument (the coroutine)
|
||||
|
||||
@pytest.mark.asyncio
|
||||
async def test_on_config_mixed_flow_operations(self):
|
||||
"""Test on_config with mixed add/remove operations"""
|
||||
async def test_fetch_and_apply_mixed_flow_operations(self):
|
||||
"""Test fetch_and_apply with mixed add/remove operations"""
|
||||
mock_backend = Mock()
|
||||
config_receiver = ConfigReceiver(mock_backend)
|
||||
|
||||
# Pre-populate with existing flows
|
||||
|
||||
# Pre-populate
|
||||
config_receiver.flows = {
|
||||
"flow1": {"name": "test_flow_1", "steps": []},
|
||||
"flow2": {"name": "test_flow_2", "steps": []}
|
||||
"flow1": {"name": "test_flow_1"},
|
||||
"flow2": {"name": "test_flow_2"}
|
||||
}
|
||||
|
||||
# Track calls manually instead of using Mock
|
||||
start_flow_calls = []
|
||||
stop_flow_calls = []
|
||||
|
||||
async def mock_start_flow(*args):
|
||||
start_flow_calls.append(args)
|
||||
|
||||
async def mock_stop_flow(*args):
|
||||
stop_flow_calls.append(args)
|
||||
|
||||
# Directly assign to avoid patch.object detecting async methods
|
||||
original_start_flow = config_receiver.start_flow
|
||||
original_stop_flow = config_receiver.stop_flow
|
||||
|
||||
# Config removes flow1, keeps flow2, adds flow3
|
||||
mock_resp = Mock()
|
||||
mock_resp.error = None
|
||||
mock_resp.version = 5
|
||||
mock_resp.config = {
|
||||
"flow": {
|
||||
"flow2": '{"name": "test_flow_2"}',
|
||||
"flow3": '{"name": "test_flow_3"}'
|
||||
}
|
||||
}
|
||||
|
||||
mock_client = AsyncMock()
|
||||
mock_client.request.return_value = mock_resp
|
||||
config_receiver.config_client = mock_client
|
||||
|
||||
start_calls = []
|
||||
stop_calls = []
|
||||
|
||||
async def mock_start_flow(id, flow):
|
||||
start_calls.append((id, flow))
|
||||
async def mock_stop_flow(id, flow):
|
||||
stop_calls.append((id, flow))
|
||||
|
||||
config_receiver.start_flow = mock_start_flow
|
||||
config_receiver.stop_flow = mock_stop_flow
|
||||
|
||||
try:
|
||||
|
||||
# Create mock message with flow1 removed and flow3 added
|
||||
mock_msg = Mock()
|
||||
mock_msg.value.return_value = Mock(
|
||||
version="1.0",
|
||||
config={
|
||||
"flow": {
|
||||
"flow2": '{"name": "test_flow_2", "steps": []}',
|
||||
"flow3": '{"name": "test_flow_3", "steps": []}'
|
||||
}
|
||||
}
|
||||
)
|
||||
|
||||
await config_receiver.on_config(mock_msg, None, None)
|
||||
|
||||
# Verify final state
|
||||
assert "flow1" not in config_receiver.flows
|
||||
assert "flow2" in config_receiver.flows
|
||||
assert "flow3" in config_receiver.flows
|
||||
|
||||
# Verify operations
|
||||
assert len(start_flow_calls) == 1
|
||||
assert start_flow_calls[0] == ("flow3", {"name": "test_flow_3", "steps": []})
|
||||
assert len(stop_flow_calls) == 1
|
||||
assert stop_flow_calls[0] == ("flow1", {"name": "test_flow_1", "steps": []})
|
||||
|
||||
finally:
|
||||
# Restore original methods
|
||||
config_receiver.start_flow = original_start_flow
|
||||
config_receiver.stop_flow = original_stop_flow
|
||||
|
||||
@pytest.mark.asyncio
|
||||
async def test_on_config_invalid_json_flow_data(self):
|
||||
"""Test on_config handles invalid JSON in flow data"""
|
||||
mock_backend = Mock()
|
||||
config_receiver = ConfigReceiver(mock_backend)
|
||||
|
||||
# Mock the start_flow method with an async function
|
||||
async def mock_start_flow(*args):
|
||||
pass
|
||||
config_receiver.start_flow = mock_start_flow
|
||||
|
||||
# Create mock message with invalid JSON
|
||||
mock_msg = Mock()
|
||||
mock_msg.value.return_value = Mock(
|
||||
version="1.0",
|
||||
config={
|
||||
"flow": {
|
||||
"flow1": '{"invalid": json}', # Invalid JSON
|
||||
"flow2": '{"name": "valid_flow", "steps": []}' # Valid JSON
|
||||
}
|
||||
}
|
||||
)
|
||||
|
||||
# This should handle the exception gracefully
|
||||
await config_receiver.on_config(mock_msg, None, None)
|
||||
|
||||
# The entire operation should fail due to JSON parsing error
|
||||
# So no flows should be added
|
||||
assert config_receiver.flows == {}
|
||||
await config_receiver.fetch_and_apply()
|
||||
|
||||
assert "flow1" not in config_receiver.flows
|
||||
assert "flow2" in config_receiver.flows
|
||||
assert "flow3" in config_receiver.flows
|
||||
assert len(start_calls) == 1
|
||||
assert start_calls[0][0] == "flow3"
|
||||
assert len(stop_calls) == 1
|
||||
assert stop_calls[0][0] == "flow1"
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue