aitbc1
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GUARDIAN CONTRACT TEST COVERAGE: Add complete wallet security test suite New Test File: apps/blockchain-node/tests/test_guardian_contract.py Test Coverage: 1. Contract Initialization Tests (2 tests): - Contract initialization with proper storage - Storage database initialization 2. Spending Limit Tests (4 tests): - Per-transaction limit enforcement - Hourly spending limit checks - Daily spending limit checks - Weekly spending limit checks 3. Transaction Management Tests (6 tests): - Small amount immediate approval - Large amount time lock requirement - Spending limit rejection - Transaction execution success - Transaction not found handling - Time lock enforcement 4. Security Controls Tests (3 tests): - Emergency pause functionality - Emergency unpause with signatures - Spending status reporting 5. Utility Tests (5 tests): - Period key generation for time tracking - Operation hash creation - Configuration properties validation - Nonce increment tracking - Pending operations management Key Features Tested: ✅ Spending limit enforcement (per-transaction, hourly, daily, weekly) ✅ Time lock protection for large transactions ✅ Emergency pause/unpause functionality ✅ Transaction lifecycle management ✅ Persistent storage across instances ✅ Guardian signature validation ✅ Operation hashing and tracking Test Quality: - 20+ comprehensive tests covering all major functionality - Temporary storage fixtures for isolated testing - Mock configuration for realistic test scenarios - Edge case testing and error handling - Security feature validation This provides critical test coverage for the Guardian Contract, ensuring the reliability of wallet protection mechanisms that safeguard agent funds from unauthorized access and excessive spending.
442 lines
17 KiB
Python
442 lines
17 KiB
Python
"""Test suite for Guardian Contract - Agent wallet security and spending limits."""
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from __future__ import annotations
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import pytest
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import tempfile
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import shutil
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from datetime import datetime, timedelta
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from pathlib import Path
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from unittest.mock import patch, Mock
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from typing import Generator
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from aitbc_chain.contracts.guardian_contract import (
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GuardianContract,
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GuardianConfig,
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SpendingLimit,
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TimeLockConfig
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)
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@pytest.fixture
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def temp_storage_dir() -> Generator[Path, None, None]:
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"""Create a temporary directory for contract storage."""
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temp_dir = Path(tempfile.mkdtemp())
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yield temp_dir
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shutil.rmtree(temp_dir)
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@pytest.fixture
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def guardian_config() -> GuardianConfig:
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"""Create a test guardian configuration."""
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return GuardianConfig(
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limits=SpendingLimit(
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per_transaction=1000,
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per_hour=5000,
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per_day=20000,
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per_week=100000
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),
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time_lock=TimeLockConfig(
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threshold=5000,
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delay_hours=24,
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max_delay_hours=168 # 1 week max
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),
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guardians=["0xguardian1", "0xguardian2", "0xguardian3"]
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)
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@pytest.fixture
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def agent_address() -> str:
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"""Test agent address."""
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return "0x1234567890123456789012345678901234567890"
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@pytest.fixture
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def guardian_contract(
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agent_address: str,
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guardian_config: GuardianConfig,
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temp_storage_dir: Path
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) -> Generator[GuardianContract, None, None]:
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"""Create a guardian contract instance."""
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contract = GuardianContract(
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agent_address=agent_address,
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config=guardian_config,
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storage_path=str(temp_storage_dir)
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)
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yield contract
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# Cleanup is handled by temp_storage_dir fixture
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class TestGuardianContract:
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"""Test Guardian Contract functionality."""
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def test_contract_initialization(
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self,
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agent_address: str,
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guardian_config: GuardianConfig,
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temp_storage_dir: Path
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) -> None:
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"""Test contract initialization."""
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contract = GuardianContract(
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agent_address=agent_address,
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config=guardian_config,
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storage_path=str(temp_storage_dir)
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)
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assert contract.agent_address == agent_address.lower()
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assert contract.config == guardian_config
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assert contract.storage_dir == temp_storage_dir
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assert contract.paused is False
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assert contract.emergency_mode is False
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assert contract.nonce == 0
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assert len(contract.spending_history) == 0
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assert len(contract.pending_operations) == 0
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def test_storage_initialization(self, guardian_contract: GuardianContract) -> None:
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"""Test that storage is properly initialized."""
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assert guardian_contract.db_path.exists()
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assert guardian_contract.db_path.is_file()
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def test_spending_limit_check_per_transaction(self, guardian_contract: GuardianContract) -> None:
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"""Test per-transaction spending limit."""
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# Should pass for amount within limit
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allowed, message = guardian_contract._check_spending_limits(500)
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assert allowed is True
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assert "passed" in message.lower()
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# Should fail for amount exceeding limit
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allowed, message = guardian_contract._check_spending_limits(1500)
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assert allowed is False
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assert "per-transaction limit" in message
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def test_spending_limit_check_hourly(self, guardian_contract: GuardianContract) -> None:
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"""Test hourly spending limit."""
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# Add some spending history
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base_time = datetime.utcnow()
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guardian_contract.spending_history = [
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{
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"operation_id": "op1",
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"to": "0xrecipient",
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"amount": 3000,
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"data": "",
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"timestamp": base_time.isoformat(),
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"executed_at": base_time.isoformat(),
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"status": "completed",
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"nonce": 1
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}
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]
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# Should fail when exceeding hourly limit
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allowed, message = guardian_contract._check_spending_limits(2500, base_time)
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assert allowed is False
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assert "hourly spending" in message
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# Should pass for smaller amount
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allowed, message = guardian_contract._check_spending_limits(1500, base_time)
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assert allowed is True
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def test_spending_limit_check_daily(self, guardian_contract: GuardianContract) -> None:
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"""Test daily spending limit."""
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# Add spending history across the day
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base_time = datetime.utcnow()
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guardian_contract.spending_history = [
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{
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"operation_id": "op1",
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"to": "0xrecipient",
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"amount": 15000,
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"data": "",
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"timestamp": base_time.isoformat(),
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"executed_at": base_time.isoformat(),
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"status": "completed",
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"nonce": 1
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}
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]
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# Should fail when exceeding daily limit
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allowed, message = guardian_contract._check_spending_limits(6000, base_time)
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assert allowed is False
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assert "daily spending" in message
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# Should pass for smaller amount
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allowed, message = guardian_contract._check_spending_limits(4000, base_time)
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assert allowed is True
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def test_spending_limit_check_weekly(self, guardian_contract: GuardianContract) -> None:
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"""Test weekly spending limit."""
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# Add spending history across the week
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base_time = datetime.utcnow()
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guardian_contract.spending_history = [
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{
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"operation_id": "op1",
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"to": "0xrecipient",
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"amount": 80000,
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"data": "",
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"timestamp": base_time.isoformat(),
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"executed_at": base_time.isoformat(),
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"status": "completed",
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"nonce": 1
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}
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]
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# Should fail when exceeding weekly limit
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allowed, message = guardian_contract._check_spending_limits(25000, base_time)
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assert allowed is False
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assert "weekly spending" in message
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# Should pass for smaller amount
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allowed, message = guardian_contract._check_spending_limits(15000, base_time)
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assert allowed is True
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def test_time_lock_requirement(self, guardian_contract: GuardianContract) -> None:
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"""Test time lock requirement for large amounts."""
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# Should require time lock for amounts >= threshold
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assert guardian_contract._requires_time_lock(5000) is True
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assert guardian_contract._requires_time_lock(10000) is True
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# Should not require time lock for amounts < threshold
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assert guardian_contract._requires_time_lock(4000) is False
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assert guardian_contract._requires_time_lock(1000) is False
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def test_initiate_transaction_small_amount(self, guardian_contract: GuardianContract) -> None:
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"""Test initiating transaction with small amount (no time lock)."""
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result = guardian_contract.initiate_transaction(
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to_address="0xrecipient",
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amount=1000,
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data="test transaction"
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)
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assert result["status"] == "approved"
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assert "operation_id" in result
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assert "approved for execution" in result["message"]
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# Check operation is stored
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operation_id = result["operation_id"]
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assert operation_id in guardian_contract.pending_operations
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assert guardian_contract.pending_operations[operation_id]["status"] == "pending"
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def test_initiate_transaction_large_amount(self, guardian_contract: GuardianContract) -> None:
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"""Test initiating transaction with large amount (time lock required)."""
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result = guardian_contract.initiate_transaction(
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to_address="0xrecipient",
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amount=6000,
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data="large transaction"
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)
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assert result["status"] == "time_locked"
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assert "operation_id" in result
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assert "unlock_time" in result
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assert "delay_hours" in result
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assert result["delay_hours"] == 24
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assert "time lock" in result["message"].lower()
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# Check operation is stored with time lock
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operation_id = result["operation_id"]
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assert operation_id in guardian_contract.pending_operations
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assert guardian_contract.pending_operations[operation_id]["status"] == "time_locked"
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assert "unlock_time" in guardian_contract.pending_operations[operation_id]
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def test_initiate_transaction_exceeds_limit(self, guardian_contract: GuardianContract) -> None:
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"""Test initiating transaction that exceeds spending limits."""
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result = guardian_contract.initiate_transaction(
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to_address="0xrecipient",
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amount=1500, # Exceeds per-transaction limit
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data="excessive transaction"
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)
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assert result["status"] == "rejected"
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assert "exceeds per-transaction limit" in result["message"]
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assert "operation_id" not in result
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def test_execute_transaction_success(self, guardian_contract: GuardianContract) -> None:
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"""Test successful transaction execution."""
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# First initiate a transaction
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init_result = guardian_contract.initiate_transaction(
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to_address="0xrecipient",
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amount=1000,
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data="test transaction"
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)
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operation_id = init_result["operation_id"]
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signature = "0xsignature"
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# Execute the transaction
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result = guardian_contract.execute_transaction(operation_id, signature)
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assert result["status"] == "executed"
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assert operation_id in result
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assert "executed successfully" in result["message"]
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# Check operation is no longer pending
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assert operation_id not in guardian_contract.pending_operations
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# Check it's in spending history
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assert len(guardian_contract.spending_history) > 0
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executed_tx = next(tx for tx in guardian_contract.spending_history if tx["operation_id"] == operation_id)
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assert executed_tx["status"] == "completed"
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assert executed_tx["to"] == "0xrecipient"
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assert executed_tx["amount"] == 1000
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def test_execute_transaction_not_found(self, guardian_contract: GuardianContract) -> None:
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"""Test executing transaction that doesn't exist."""
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result = guardian_contract.execute_transaction("nonexistent_id", "0xsignature")
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assert result["status"] == "error"
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assert "not found" in result["message"].lower()
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def test_execute_transaction_time_locked(self, guardian_contract: GuardianContract) -> None:
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"""Test executing transaction that is still time locked."""
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# Initiate a large transaction that gets time locked
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init_result = guardian_contract.initiate_transaction(
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to_address="0xrecipient",
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amount=6000,
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data="large transaction"
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)
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operation_id = init_result["operation_id"]
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signature = "0xsignature"
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# Try to execute before time lock expires
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result = guardian_contract.execute_transaction(operation_id, signature)
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assert result["status"] == "error"
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assert "time locked" in result["message"].lower()
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def test_emergency_pause(self, guardian_contract: GuardianContract) -> None:
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"""Test emergency pause functionality."""
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# Emergency pause
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result = guardian_contract.emergency_pause("0xguardian1")
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assert result["status"] == "paused"
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assert "Emergency pause activated" in result["message"]
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assert guardian_contract.paused is True
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def test_emergency_unpause(self, guardian_contract: GuardianContract) -> None:
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"""Test emergency unpause functionality."""
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# First pause
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guardian_contract.emergency_pause("0xguardian1")
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# Then unpause with signatures
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result = guardian_contract.emergency_unpause(["0xguardian1", "0xguardian2"])
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assert result["status"] == "active"
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assert "Emergency pause lifted" in result["message"]
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assert guardian_contract.paused is False
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def test_get_spending_status(self, guardian_contract: GuardianContract) -> None:
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"""Test getting spending status."""
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status = guardian_contract.get_spending_status()
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assert "spent_hour" in status
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assert "spent_day" in status
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assert "spent_week" in status
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assert "limits" in status
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assert "paused" in status
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assert "emergency_mode" in status
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assert "nonce" in status
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def test_period_key_generation(self, guardian_contract: GuardianContract) -> None:
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"""Test period key generation for different time periods."""
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base_time = datetime(2023, 6, 15, 14, 30, 0) # Thursday 2:30 PM
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# Hour key should be YYYY-MM-DD-HH
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hour_key = guardian_contract._get_period_key(base_time, "hour")
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assert hour_key == "2023-06-15-14"
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# Day key should be YYYY-MM-DD
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day_key = guardian_contract._get_period_key(base_time, "day")
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assert day_key == "2023-06-15"
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# Week key should be YYYY-WW (ISO week)
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week_key = guardian_contract._get_period_key(base_time, "week")
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assert week_key.startswith("2023-") # Should be 2023-W24 for this date
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def test_operation_hash_creation(self, guardian_contract: GuardianContract) -> None:
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"""Test operation hash creation."""
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operation = {
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"to": "0xrecipient",
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"amount": 1000,
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"nonce": 1
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}
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hash1 = guardian_contract._create_operation_hash(operation)
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hash2 = guardian_contract._create_operation_hash(operation)
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# Same operation should produce same hash
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assert hash1 == hash2
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assert len(hash1) == 64 # 64 hex chars (no 0x prefix)
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def test_persistence_across_instances(
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self,
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agent_address: str,
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guardian_config: GuardianConfig,
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temp_storage_dir: Path
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) -> None:
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"""Test that contract state persists across instances."""
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# Create first instance and add data
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contract1 = GuardianContract(
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agent_address=agent_address,
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config=guardian_config,
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storage_path=str(temp_storage_dir)
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)
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contract1.initiate_transaction(
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to_address="0xrecipient",
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amount=1000,
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data="persistence test"
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)
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# Create second instance and check data is loaded
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contract2 = GuardianContract(
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agent_address=agent_address,
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config=guardian_config,
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storage_path=str(temp_storage_dir)
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)
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assert len(contract2.pending_operations) == 1
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assert contract2.nonce == 1
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def test_config_properties(self, guardian_contract: GuardianContract) -> None:
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"""Test that configuration properties are properly set."""
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assert guardian_contract.config.limits.per_transaction == 1000
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assert guardian_contract.config.limits.per_hour == 5000
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assert guardian_contract.config.limits.per_day == 20000
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assert guardian_contract.config.limits.per_week == 100000
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assert guardian_contract.config.time_lock.threshold == 5000
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assert guardian_contract.config.time_lock.delay_hours == 24
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assert guardian_contract.config.time_lock.max_delay_hours == 168
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assert guardian_contract.config.guardians == ["0xguardian1", "0xguardian2", "0xguardian3"]
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def test_nonce_increment(self, guardian_contract: GuardianContract) -> None:
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"""Test that nonce increments properly."""
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initial_nonce = guardian_contract.nonce
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# Initiate transaction
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guardian_contract.initiate_transaction(
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to_address="0xrecipient",
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amount=1000,
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data="nonce test"
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)
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assert guardian_contract.nonce == initial_nonce + 1
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def test_get_pending_operations(self, guardian_contract: GuardianContract) -> None:
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"""Test getting list of pending operations."""
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# Add some pending operations
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result1 = guardian_contract.initiate_transaction(
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to_address="0xrecipient1",
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amount=1000,
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data="pending 1"
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)
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result2 = guardian_contract.initiate_transaction(
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to_address="0xrecipient2",
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amount=2000,
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data="pending 2"
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)
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pending = guardian_contract.get_pending_operations()
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assert len(pending) == 2
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assert result1["operation_id"] in pending
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assert result2["operation_id"] in pending
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