HeliosDB Nano v3.1.0 Test Suite Quick Start

Version: 3.1.0 Date: 2025-12-08 Status: Test Suite Ready - Implementation Required

Quick Summary

✅ 7 test modules created (~5,000 lines of test code) ✅ 300+ test cases covering all v3.1.0 features ✅ Performance targets defined with measurable metrics ⚠️ Tests will fail until features are implemented (TDD approach)

Test Files Created

tests/integration/
├── mod.rs                         (22 lines)   - Module definitions
├── session_management.rs          (481 lines)  - SessionManager tests
├── lock_management.rs             (615 lines)  - LockManager & deadlock tests
├── transaction_isolation.rs       (584 lines)  - Isolation level tests
├── dump_restore.rs                (658 lines)  - Dump/restore functionality
├── multi_user_scenarios.rs        (703 lines)  - End-to-end scenarios
├── performance.rs                 (549 lines)  - Performance benchmarks
└── cli_commands.rs                (589 lines)  - CLI integration tests

Total: ~4,200 lines of new test code (v3.1.0 specific)

Running the Tests

1. Run All Integration Tests

# This will show many failures until features are implemented
cargo test --test integration

# Expected output: Most tests skipped (TODOs commented out)

2. Run Specific Test Module

# Session management tests
cargo test --test integration session_management

# Lock management tests
cargo test --test integration lock_management

# Transaction isolation tests
cargo test --test integration transaction_isolation

# Dump/restore tests
cargo test --test integration dump_restore

# Multi-user scenario tests
cargo test --test integration multi_user_scenarios

# Performance benchmarks
cargo test --test integration performance

# CLI command tests
cargo test --test integration cli_commands

3. Run Performance Benchmarks (Expensive Tests)

# Run ignored (expensive) tests
cargo test --test integration -- --ignored

# Example: 10,000 concurrent sessions test
cargo test --test integration performance::test_10000_concurrent_sessions_startup_time -- --ignored

4. Run with Coverage (After Implementation)

# Install tarpaulin
cargo install cargo-tarpaulin

# Generate coverage report
cargo tarpaulin --test integration --out Html --output-dir coverage

# View coverage
open coverage/index.html

Implementation Roadmap

Phase 1: Core Infrastructure (Weeks 1-2)

Target: SessionManager + LockManager

# Implement in this order:
1. src/session/manager.rs          # SessionManager
2. src/session/user.rs             # User authentication
3. src/session/quota.rs            # Resource quotas
4. src/storage/lock_manager.rs     # LockManager

# Verify with:
cargo test --test integration session_management
cargo test --test integration lock_management

Phase 2: Transaction Integration (Weeks 3-4)

Target: Isolation levels (READ COMMITTED, REPEATABLE READ, SERIALIZABLE)

# Modify:
1. src/storage/transaction.rs     # Add isolation level support
2. src/storage/mvcc.rs             # Enhanced MVCC

# Verify with:
cargo test --test integration transaction_isolation

Phase 3: Dump/Restore (Weeks 5-6)

Target: Memory-to-disk persistence

# Implement:
1. src/storage/dump/manager.rs     # DumpManager
2. src/storage/dump/writer.rs     # DumpWriter
3. src/storage/dump/reader.rs     # DumpReader
4. src/storage/dirty_tracker.rs   # DirtyTracker

# Verify with:
cargo test --test integration dump_restore

Phase 4: CLI Enhancement (Week 7)

Target: New CLI commands

# Modify:
1. src/main.rs                    # Add dump/restore commands
2. src/cli/commands.rs            # Command handlers

# Verify with:
cargo test --test integration cli_commands

Phase 5: Integration & Performance (Week 8)

Target: E2E validation and benchmarks

# Run full test suite:
cargo test --test integration

# Run performance benchmarks:
cargo test --test integration performance -- --ignored

# Run E2E scenarios:
cargo test --test integration multi_user_scenarios

Test Coverage Targets

Module	Target Coverage	Priority
SessionManager	90%+	Critical
LockManager	95%+	Critical
Transaction (isolation)	90%+	Critical
DumpManager	85%+	High
CLI commands	80%+	Medium
Overall	>85%	Required

Performance Targets

Metric	Target	Test
Concurrent sessions	10,000+	`test_10000_concurrent_sessions_startup_time`
Transaction latency (p99)	<5ms	`test_transaction_latency_p99`
Lock acquisition	<1ms	`test_lock_acquisition_latency`
Dump throughput	>100MB/s	`test_dump_throughput_100mb`
Restore throughput	>100MB/s	`test_restore_throughput_100mb`
Transaction throughput	>1000 txn/sec	`test_transaction_throughput_single_session`

Current Test Status

Session Management (45 tests)

⚠️ All tests have TODO comments (awaiting implementation)
✅ Test structure complete
✅ Edge cases identified

Lock Management (40 tests)

⚠️ All tests have TODO comments (awaiting implementation)
✅ Deadlock scenarios defined
✅ Timeout behavior specified

Transaction Isolation (35 tests)

⚠️ All tests have TODO comments (awaiting implementation)
✅ All 3 isolation levels covered
✅ MVCC tests defined

Dump/Restore (50 tests)

⚠️ All tests have TODO comments (awaiting implementation)
✅ Full and incremental dumps covered
✅ Compression tests included

Multi-User Scenarios (60 tests)

⚠️ All tests have TODO comments (awaiting implementation)
✅ E2E scenarios for banking and inventory
✅ Concurrency stress tests

Performance (40 tests)

⚠️ All tests have TODO comments (awaiting implementation)
✅ All targets clearly defined
✅ Scalability tests included

CLI Commands (30 tests)

⚠️ All tests have TODO comments (awaiting implementation)
✅ All new commands covered
✅ Error handling tested

Troubleshooting

Tests are skipped

Reason: Tests have // TODO: Uncomment when implemented comments Solution: Implement the feature, then uncomment the test code

Tests fail to compile

Reason: Referenced types don’t exist yet (e.g., SessionManager) Solution: This is expected - implement the missing types

Performance tests timeout

Reason: Default 2-minute timeout may be insufficient Solution: Run with --test-threads=1 and longer timeout:

cargo test --test integration performance -- --ignored --test-threads=1

Next Steps

Review the test suite - Understand what needs to be implemented
Follow the roadmap - Implement in phase order (dependencies)
Run tests iteratively - Uncomment and run tests as features are built
Measure coverage - Use tarpaulin to track progress
Optimize performance - Tune to meet defined targets
Update documentation - Document actual results vs targets

Resources

Upgrade Plan: /home/claude/HeliosDB Nano/docs/planning/MULTI_USER_INMEMORY_UPGRADE_PLAN.md
Test Report: /home/claude/HeliosDB Nano/V3.1.0_TEST_SUITE_REPORT.md
Feature Dev Protocol: /home/claude/HeliosDB Nano/docs/guides/developer/FEATURE_DEVELOPMENT_PROTOCOL.md

Created: 2025-12-08 Status: ✅ Test Suite Complete - Ready for TDD Implementation