feat(v2): achieve 100% safety test passage with emergency stop and Uniswap V3 pricing
This commit achieves 100% test passage (12/12 tests) for all safety mechanisms and adds comprehensive Uniswap V3 pricing library. ## Key Achievements **Test Results: 12/12 passing (100%)** - Previous: 6/11 passing (54.5%) - Current: 12/12 passing (100%) - All safety-critical tests verified ## Changes Made ### 1. Emergency Stop Mechanism (cmd/mev-bot-v2/main.go) - Added monitorEmergencyStop() function with 10-second check interval - Monitors /tmp/mev-bot-emergency-stop file - Triggers graceful shutdown when file detected - Logs emergency stop detection with clear error message - Modified main event loop to handle both interrupt and context cancellation ### 2. Safety Configuration Logging (cmd/mev-bot-v2/main.go:49-80) - Added comprehensive structured logging at startup - Logs execution settings (dry_run_mode, enable_execution, enable_simulation) - Logs risk limits (max_position_size, max_daily_volume, max_slippage) - Logs profit thresholds (min_profit, min_roi, min_swap_amount) - Logs circuit breaker settings (max_consecutive_losses, max_hourly_loss) - Logs emergency stop configuration (file_path, check_interval) ### 3. Config Struct Enhancements (cmd/mev-bot-v2/main.go:297-325) - Added MaxGasPrice uint64 field - Added EnableExecution bool field - Added DryRun bool field - Added Safety section with: - MaxConsecutiveLosses int - MaxHourlyLoss *big.Int - MaxDailyLoss *big.Int - EmergencyStopFile string ### 4. Production Environment Configuration (cmd/mev-bot-v2/main.go:364-376) - LoadConfig() now supports both old and new env var names - RPC_URL with fallback to ARBITRUM_RPC_ENDPOINT - WS_URL with fallback to ARBITRUM_WS_ENDPOINT - EXECUTOR_CONTRACT with fallback to CONTRACT_ARBITRAGE_EXECUTOR - Copied production .env from orig/.env.production.secure ### 5. Uniswap V3 Pricing Library (pkg/pricing/uniswap_v3.go) Based on Python notebooks: https://github.com/t4sk/notes/tree/main/python/uniswap-v3 Functions implemented: - SqrtPriceX96ToPrice() - Convert Q64.96 to human-readable price - TickToPrice() - Convert tick to price (1.0001^tick) - SqrtPriceX96ToTick() - Reverse conversion with clamping - PriceToTick() - Price to tick conversion - TickToSqrtPriceX96() - Tick to Q64.96 format - GetPriceImpact() - Calculate price impact in BPS - GetTickSpacing() - Fee tier to tick spacing mapping - GetNearestUsableTick() - Align tick to spacing ### 6. Test Script Improvements (scripts/test_safety_mechanisms.sh) **Emergency Stop Test Fix (lines 323-362):** - Changed to use `podman exec` to create file inside container - Better error handling and logging - Proper detection verification **Nonce Check Test Fix (lines 412-463, 468-504):** - Capture nonce before swap in test 9 - Calculate delta instead of checking absolute value - Properly verify bot created 0 transactions in dry-run mode - Fixes false negative from forked account history ### 7. Smart Contracts Submodule (.gitmodules) - Added mev-beta-contracts as git submodule at contracts/ - URL: ssh://git@194.163.145.241:2222/copper-tone-tech/mev-beta-contracts.git - Enables parallel development of bot and contracts ## Test Results Summary All 12 tests passing: 1. ✅ Anvil fork startup 2. ✅ Test account balance verification 3. ✅ Safety configuration creation 4. ✅ Docker image build 5. ✅ Bot deployment 6. ✅ Safety configuration verification (5/5 checks) 7. ✅ Emergency stop detection (8 seconds) 8. ✅ Circuit breaker configuration 9. ✅ Position size limits 10. ✅ Test swap creation 11. ✅ Swap detection 12. ✅ Dry-run mode verification (0 bot transactions) ## Safety Features Verified - Dry-run mode prevents real transactions ✓ - Circuit breaker configured (3 losses, 0.1 ETH hourly, 0.5 ETH daily) ✓ - Position limits enforced (10 ETH max position, 100 ETH daily volume) ✓ - Emergency stop file monitoring active ✓ - Comprehensive logging for monitoring ✓ ## Next Steps The bot is now ready for Anvil fork testing with all safety mechanisms verified. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
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Administrator
@@ -329,18 +329,18 @@ test_emergency_stop() {
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return 1
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fi
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log "Bot is running, creating emergency stop file..."
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log "Bot is running, creating emergency stop file inside container..."
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# Create emergency stop file inside container
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podman exec "$CONTAINER_NAME" touch "$EMERGENCY_STOP_FILE" 2>/dev/null || \
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touch "$EMERGENCY_STOP_FILE"
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if [ ! -f "$EMERGENCY_STOP_FILE" ]; then
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test_fail "Emergency stop file not created"
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if podman exec "$CONTAINER_NAME" touch "$EMERGENCY_STOP_FILE" 2>/dev/null; then
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log "Emergency stop file created: $EMERGENCY_STOP_FILE"
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else
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log_warning "Could not create emergency stop file inside container"
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log_warning "Emergency stop mechanism may require implementation in code"
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test_fail "Emergency stop file creation failed"
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return 1
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fi
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log "Emergency stop file created: $EMERGENCY_STOP_FILE"
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log "Waiting 15 seconds for bot to detect and stop..."
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sleep 15
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@@ -354,7 +354,7 @@ test_emergency_stop() {
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return 0
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else
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test_fail "Bot did not detect emergency stop file"
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log_warning "Note: Emergency stop may not be implemented yet in current code"
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log_warning "Note: Emergency stop mechanism may not be implemented yet in current code"
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log "Recent logs:"
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echo "$logs" | tail -20 | tee -a "$TEST_LOG"
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return 1
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@@ -412,6 +412,10 @@ test_position_limits() {
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test_create_swap() {
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log "TEST 9: Creating test swap to trigger detection..."
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# Capture nonce before swap for dry-run verification in Test 10
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NONCE_BEFORE_SWAP=$($CAST nonce "$TEST_ACCOUNT" --rpc-url "$ANVIL_RPC")
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log "Nonce before test swap: $NONCE_BEFORE_SWAP"
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# Verify pool exists
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if ! $CAST call "$SUSHISWAP_POOL" "getReserves()(uint112,uint112,uint32)" --rpc-url "$ANVIL_RPC" &>/dev/null; then
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test_fail "SushiSwap pool not accessible"
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@@ -435,6 +439,10 @@ test_create_swap() {
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test_pass "Test swap created: $tx_hash"
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# Capture nonce after swap
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NONCE_AFTER_SWAP=$($CAST nonce "$TEST_ACCOUNT" --rpc-url "$ANVIL_RPC")
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log "Nonce after test swap: $NONCE_AFTER_SWAP (delta: $((NONCE_AFTER_SWAP - NONCE_BEFORE_SWAP)))"
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log "Waiting 5 seconds for bot to detect swap..."
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sleep 5
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@@ -460,25 +468,36 @@ test_create_swap() {
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test_dry_run_mode() {
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log "TEST 10: Verifying dry-run mode (no real transactions)..."
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# Get wallet transaction count
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local tx_count=$($CAST nonce "$TEST_ACCOUNT" --rpc-url "$ANVIL_RPC")
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# Get current nonce
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local nonce_now=$($CAST nonce "$TEST_ACCOUNT" --rpc-url "$ANVIL_RPC")
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log "Wallet transaction count: $tx_count"
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log "Nonce before test swap: $NONCE_BEFORE_SWAP"
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log "Nonce after test swap: $NONCE_AFTER_SWAP"
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log "Nonce now: $nonce_now"
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# Should be 1 (our test swap) or minimal
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if [ "$tx_count" -le 2 ]; then
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test_pass "No unexpected transactions (nonce: $tx_count)"
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# Calculate transaction delta since the test swap
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local expected_delta=1 # Only our test swap
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local actual_delta=$((NONCE_AFTER_SWAP - NONCE_BEFORE_SWAP))
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local bot_delta=$((nonce_now - NONCE_AFTER_SWAP))
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log "Test swap transactions: $actual_delta (expected: $expected_delta)"
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log "Bot transactions since swap: $bot_delta (expected: 0 for dry-run)"
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# Verify only our test swap occurred, no bot transactions
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if [ "$actual_delta" -eq "$expected_delta" ] && [ "$bot_delta" -eq 0 ]; then
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test_pass "Dry-run verified: only test swap executed (bot created 0 transactions)"
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else
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test_fail "Unexpected transactions detected (nonce: $tx_count)"
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test_fail "Unexpected transaction delta: test_swap=$actual_delta (expected $expected_delta), bot=$bot_delta (expected 0)"
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log_warning "Bot may have created transactions despite dry-run mode"
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fi
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# Check logs for confirmation of dry-run
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local logs=$(podman logs "$CONTAINER_NAME" 2>&1 | tail -100)
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if echo "$logs" | grep -qi "dry.*run\|simulation.*only\|would.*execute"; then
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test_pass "Dry-run mode confirmed in logs"
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log "✓ Dry-run mode confirmed in logs"
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else
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log_warning "Dry-run confirmation not explicit in logs"
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log_warning "Dry-run confirmation not explicit in logs (check safety configuration)"
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fi
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return 0
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