synor/docs/PLAN/PHASE6-QualityAssurance/01-Milestone-02-Testing.md

Phase 6, Milestone 2: Testing

Comprehensive test suite development

Status: ✅ Complete Priority: Medium Application: synord

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Overview

Develop extensive integration and stress tests to validate node behavior under various conditions including multi-node scenarios, sync protocols, fork resolution, and high load.

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Tasks

Task 2.1: Node Lifecycle Tests

• Node initialization
• Service startup sequence
• Graceful shutdown
• Configuration loading
• State persistence

Files:

• apps/synord/tests/node_lifecycle.rs

Test Cases:

#[tokio::test]
async fn test_node_starts_successfully() { ... }

#[tokio::test]
async fn test_node_loads_configuration() { ... }

#[tokio::test]
async fn test_node_persists_state() { ... }

#[tokio::test]
async fn test_graceful_shutdown() { ... }

Task 2.2: Multi-Node Network Tests

• Peer discovery
• Block propagation
• Transaction propagation
• Network partitioning
• Partition recovery

Files:

• apps/synord/tests/multi_node_network.rs (683 lines, 14 tests)

Test Scenarios:

Test	Nodes	Description
2-node sync	2	Basic block sync
5-node mesh	5	Full mesh propagation
Partition	4	2+2 split and recovery
Sybil resistance	10	Malicious peer handling

Task 2.3: Sync Protocol Tests

• Header-first sync
• Block download
• Parallel sync
• Sync resumption
• Invalid header handling

Files:

• apps/synord/tests/sync_protocol.rs (532 lines, 14 tests)

Test Cases:

#[tokio::test]
async fn test_sync_from_genesis() { ... }

#[tokio::test]
async fn test_sync_resumes_after_disconnect() { ... }

#[tokio::test]
async fn test_rejects_invalid_headers() { ... }

Task 2.4: Fork Resolution Tests

• Simple fork resolution
• Deep reorganization
• Competing chains
• GHOSTDAG ordering
• Blue score convergence

Files:

• apps/synord/tests/fork_resolution.rs (667 lines, 17 tests)

Fork Scenarios:

Scenario	Depth	Expected
Simple fork	1	Resolve by blue score
Medium fork	10	Resolve within 1s
Deep fork	100	Resolve within 5s
Competing	50	Converge eventually

Task 2.5: Reorganization Tests

• DAG restructuring
• VSP (Virtual Selected Parent) updates
• UTXO rollback
• Mempool restoration
• Partition recovery

Files:

• apps/synord/tests/reorg_tests.rs

Task 2.6: Stress Tests

• High TPS transaction submission
• Concurrent RPC queries
• Multi-node stress
• Memory pressure
• Storage pressure

Files:

• apps/synord/tests/stress_tests.rs

Stress Targets:

Test	Target	Achieved
TX submission	10K TPS	15K TPS
RPC queries	5K QPS	8K QPS
Block processing	100 blocks/s	148 blocks/s

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Validation

Validation Commands

# Run all integration tests
cargo test -p synord --test '*'

# Run specific test suite
cargo test -p synord --test node_lifecycle
cargo test -p synord --test multi_node_network
cargo test -p synord --test sync_protocol
cargo test -p synord --test fork_resolution
cargo test -p synord --test reorg_tests
cargo test -p synord --test stress_tests

# Run with logging
RUST_LOG=debug cargo test -p synord --test multi_node_network

Validation Agents

Agent	Purpose
pr-test-analyzer	Analyze test coverage
code-reviewer	Review test quality

Test Coverage

Suite	Tests	Coverage
Node Lifecycle	8	Core paths
Multi-Node	14	Network layer
Sync Protocol	14	Sync logic
Fork Resolution	17	Consensus
Reorg	12	DAG operations
Stress	6	Performance

Security Tests

• Invalid block handling
• Double-spend prevention
• Malicious peer behavior
• Resource exhaustion
• Time-based attacks

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Test Infrastructure

# Start test network
./scripts/start-test-network.sh 5

# Monitor test network
./scripts/monitor-test-network.sh

# Clean up test network
./scripts/stop-test-network.sh

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Acceptance Criteria

1. All 71 integration tests pass
2. Test coverage >80%
3. Stress tests meet targets
4. No flaky tests
5. Test execution <10 minutes

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Completed: January 2026