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7b7b417 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 | """Tests for the reflexive engine."""
import pytest
from datetime import datetime
from unittest.mock import Mock, AsyncMock
from fastmcp.reflexive import ReflexiveEngine, ActionContext, DecisionType, RiskLevel
from fastmcp.reflexive.engine import ReflexiveDecision
class TestReflexiveEngine:
"""Test the reflexive engine functionality."""
@pytest.fixture
def reflexive_engine(self):
"""Create a reflexive engine for testing."""
return ReflexiveEngine()
@pytest.fixture
def action_context(self):
"""Create an action context for testing."""
return ActionContext(
action_id="test_action_123",
actor_id="test_user",
action_type="tool_call",
resource_id="test_resource",
metadata={"test": "data"}
)
def test_engine_initialization(self, reflexive_engine):
"""Test reflexive engine initialization."""
assert reflexive_engine.policy_engine is None
assert reflexive_engine.ledger is None
assert len(reflexive_engine.monitors) == 0
assert len(reflexive_engine.decision_handlers) == 4
assert not reflexive_engine.is_running
def test_engine_status(self, reflexive_engine):
"""Test getting engine status."""
status = reflexive_engine.get_engine_status()
assert "is_running" in status
assert "monitor_count" in status
assert "queue_size" in status
assert "decision_handlers" in status
assert status["is_running"] is False
assert status["monitor_count"] == 0
assert len(status["decision_handlers"]) == 4
def test_add_remove_monitor(self, reflexive_engine):
"""Test adding and removing monitors."""
def test_monitor(context):
return None
# Add monitor
reflexive_engine.add_monitor(test_monitor)
assert len(reflexive_engine.monitors) == 1
assert test_monitor in reflexive_engine.monitors
# Remove monitor
reflexive_engine.remove_monitor(test_monitor)
assert len(reflexive_engine.monitors) == 0
assert test_monitor not in reflexive_engine.monitors
async def test_submit_action(self, reflexive_engine, action_context):
"""Test submitting an action for evaluation."""
await reflexive_engine.submit_action(action_context)
# Check that action was added to queue
assert reflexive_engine.event_queue.qsize() == 1
async def test_evaluate_action_no_violations(self, reflexive_engine, action_context):
"""Test evaluating an action with no violations."""
decision = await reflexive_engine._evaluate_action(action_context)
assert decision.decision_type == DecisionType.ALLOW
assert decision.risk_level == RiskLevel.LOW
assert decision.reason == "No violations or anomalies detected"
assert decision.action_context == action_context
assert decision.proof_hash is not None
async def test_evaluate_action_with_violations(self, reflexive_engine, action_context):
"""Test evaluating an action with violations."""
# Add a monitor that returns violations
def violation_monitor(context):
return {
"type": "violation",
"severity": "high",
"violations": [{"rule": "test_rule", "message": "Test violation", "severity": "high"}]
}
reflexive_engine.add_monitor(violation_monitor)
decision = await reflexive_engine._evaluate_action(action_context)
assert decision.decision_type == DecisionType.HALT
assert decision.risk_level == RiskLevel.HIGH
assert "violations" in decision.evidence
assert len(decision.evidence["violations"]) == 1
async def test_evaluate_action_with_anomalies(self, reflexive_engine, action_context):
"""Test evaluating an action with anomalies."""
# Add a monitor that returns anomalies
def anomaly_monitor(context):
return {
"type": "anomaly",
"severity": "medium",
"anomalies": [{"type": "test_anomaly", "message": "Test anomaly", "severity": "medium"}]
}
reflexive_engine.add_monitor(anomaly_monitor)
decision = await reflexive_engine._evaluate_action(action_context)
assert decision.decision_type == DecisionType.ESCALATE
assert decision.risk_level == RiskLevel.MEDIUM
assert "anomalies" in decision.evidence
assert len(decision.evidence["anomalies"]) == 1
async def test_evaluate_action_critical_violation(self, reflexive_engine, action_context):
"""Test evaluating an action with critical violations."""
# Add a monitor that returns critical violations
def critical_monitor(context):
return {
"type": "violation",
"severity": "critical",
"violations": [{"rule": "critical_rule", "message": "Critical violation", "severity": "critical"}]
}
reflexive_engine.add_monitor(critical_monitor)
decision = await reflexive_engine._evaluate_action(action_context)
assert decision.decision_type == DecisionType.HALT
assert decision.risk_level == RiskLevel.CRITICAL
async def test_simulate_risk(self, reflexive_engine):
"""Test risk simulation."""
risk_scenario = {
"action_context": {
"action_id": "simulation_action",
"actor_id": "test_actor",
"action_type": "admin_access",
"resource_id": "sensitive_data"
},
"monitors": [
lambda ctx: {
"type": "violation",
"severity": "high",
"violations": [{"rule": "admin_restriction", "message": "Unauthorized admin access", "severity": "high"}]
}
]
}
decision = await reflexive_engine.simulate_risk(risk_scenario)
assert decision.decision_type == DecisionType.HALT
assert decision.risk_level == RiskLevel.HIGH
assert decision.action_context.action_id == "simulation_action"
def test_assess_risk_level(self, reflexive_engine):
"""Test risk level assessment."""
# Test critical risk
critical_violations = [{"severity": "critical"}]
assert reflexive_engine._assess_risk_level(critical_violations, []) == RiskLevel.CRITICAL
# Test high risk
high_violations = [{"severity": "high"}]
assert reflexive_engine._assess_risk_level(high_violations, []) == RiskLevel.HIGH
# Test medium risk
medium_violations = [{"severity": "medium"}]
assert reflexive_engine._assess_risk_level(medium_violations, []) == RiskLevel.MEDIUM
# Test low risk
low_violations = [{"severity": "low"}]
assert reflexive_engine._assess_risk_level(low_violations, []) == RiskLevel.LOW
# Test multiple issues
multiple_issues = [{"severity": "low"}, {"severity": "low"}, {"severity": "low"}]
assert reflexive_engine._assess_risk_level(multiple_issues, []) == RiskLevel.MEDIUM
def test_determine_escalation_target(self, reflexive_engine):
"""Test escalation target determination."""
decision = ReflexiveDecision(
decision_type=DecisionType.ESCALATE,
risk_level=RiskLevel.CRITICAL,
action_context=ActionContext(action_id="test", actor_id="test", action_type="test"),
reason="Test"
)
target = reflexive_engine._determine_escalation_target(decision)
assert target == "security_admin"
decision.risk_level = RiskLevel.HIGH
target = reflexive_engine._determine_escalation_target(decision)
assert target == "system_admin"
decision.risk_level = RiskLevel.MEDIUM
target = reflexive_engine._determine_escalation_target(decision)
assert target == "monitoring_team"
class TestActionContext:
"""Test the ActionContext class."""
def test_action_context_creation(self):
"""Test creating an action context."""
context = ActionContext(
action_id="test_action",
actor_id="test_actor",
action_type="test_type"
)
assert context.action_id == "test_action"
assert context.actor_id == "test_actor"
assert context.action_type == "test_type"
assert context.resource_id is None
assert context.metadata == {}
assert isinstance(context.timestamp, datetime)
def test_action_context_hash(self):
"""Test action context hash generation."""
context1 = ActionContext(
action_id="test_action",
actor_id="test_actor",
action_type="test_type",
metadata={"key": "value"}
)
context2 = ActionContext(
action_id="test_action",
actor_id="test_actor",
action_type="test_type",
metadata={"key": "value"}
)
# Same content should produce same hash
assert context1.get_context_hash() == context2.get_context_hash()
# Different content should produce different hash
context3 = ActionContext(
action_id="different_action",
actor_id="test_actor",
action_type="test_type",
metadata={"key": "value"}
)
assert context1.get_context_hash() != context3.get_context_hash()
class TestReflexiveDecision:
"""Test the ReflexiveDecision class."""
def test_decision_creation(self):
"""Test creating a reflexive decision."""
action_context = ActionContext(
action_id="test_action",
actor_id="test_actor",
action_type="test_type"
)
decision = ReflexiveDecision(
decision_type=DecisionType.HALT,
risk_level=RiskLevel.HIGH,
action_context=action_context,
reason="Test reason"
)
assert decision.decision_type == DecisionType.HALT
assert decision.risk_level == RiskLevel.HIGH
assert decision.action_context == action_context
assert decision.reason == "Test reason"
assert decision.evidence == {}
assert decision.escalated_to is None
assert decision.proof_hash is None
assert isinstance(decision.timestamp, datetime)
def test_decision_hash(self):
"""Test decision hash generation."""
from uuid import uuid4
action_context = ActionContext(
action_id="test_action",
actor_id="test_actor",
action_type="test_type"
)
# Use the same decision_id for both decisions
decision_id = uuid4()
decision1 = ReflexiveDecision(
decision_id=decision_id,
decision_type=DecisionType.HALT,
risk_level=RiskLevel.HIGH,
action_context=action_context,
reason="Test reason"
)
decision2 = ReflexiveDecision(
decision_id=decision_id,
decision_type=DecisionType.HALT,
risk_level=RiskLevel.HIGH,
action_context=action_context,
reason="Test reason"
)
# Same content should produce same hash
assert decision1.get_decision_hash() == decision2.get_decision_hash()
# Different content should produce different hash
decision3 = ReflexiveDecision(
decision_type=DecisionType.ESCALATE,
risk_level=RiskLevel.HIGH,
action_context=action_context,
reason="Test reason"
)
assert decision1.get_decision_hash() != decision3.get_decision_hash()
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