ADR-031: CODI2 and Monitor Service Integration - Part 3 (Testing)

Document Specification Block

Document: ADR-031-v4-codi2-monitor-integration-part3-testing
Version: 1.1.0
Purpose: Comprehensive testing strategy for CODI2 and codi-monitor integration
Audience: QA Engineers, Developers, DevOps
Date Created: 2025-09-28
Date Modified: 2025-09-28
Date Released: 2025-09-28
Status: DRAFT
QA Reviewed: 2025-09-28 - APPROVED WITH MINOR REVISIONS

Table of Contents

• Testing Philosophy
• Test Categories
• Unit Testing Strategy
• Integration Testing
• Performance Testing
• Failure Scenario Testing
• Environment Testing
• Security Testing
• Acceptance Criteria
• Test Automation
• Approval Signatures
• Version History

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---

Testing Philosophy

Core Principles

1. Integration First: Focus on the interaction between CODI2 and monitor
2. Failure Resilience: Test degraded states extensively
3. Environment Parity: Same tests must pass locally and in containers
4. Performance Baseline: Establish and maintain performance benchmarks
5. Automation Required: All tests must be automatable

Coverage Requirements

• Unit Tests: 90% minimum
• Integration Tests: 85% minimum
• Critical Paths: 100% coverage
• Failure Scenarios: 95% coverage

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---

Test Categories

Test Matrix Overview

Category	Focus	Coverage Target	Automation
Unit	Individual components	90%	CI/CD
Integration	IPC communication	85%	CI/CD
Performance	Latency & throughput	Baselines	Nightly
Failure	Degraded operation	95%	CI/CD
Environment	Local vs container	100%	CI/CD
Security	Auth & validation	100%	Weekly
E2E	Full workflow	Critical paths	Release

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---

Unit Testing Strategy

1. Protocol Tests

#[cfg(test)]
mod protocol_tests {
    use super::*;
    use uuid::Uuid;
    use chrono::Utc;

    #[test]
    fn test_message_serialization() {
        let msg = Message {
            id: Uuid::new_v4(),
            timestamp: Utc::now(),
            payload: MessagePayload::LogEntry {
                level: LogLevel::Info,
                component: "test".to_string(),
                message: "Test message".to_string(),
                metadata: None,
            },
        };
        
        // Test MessagePack serialization
        let encoded = rmp_serde::to_vec(&msg).unwrap();
        let decoded: Message = rmp_serde::from_slice(&encoded).unwrap();
        
        assert_eq!(msg.id, decoded.id);
        match decoded.payload {
            MessagePayload::LogEntry { message, .. } => {
                assert_eq!(message, "Test message");
            }
            _ => panic!("Wrong payload type"),
        }
    }

    #[test]
    fn test_message_size_limits() {
        let large_message = "x".repeat(2 * 1024 * 1024); // 2MB
        let msg = Message {
            id: Uuid::new_v4(),
            timestamp: Utc::now(),
            payload: MessagePayload::LogEntry {
                level: LogLevel::Info,
                component: "test".to_string(),
                message: large_message,
                metadata: None,
            },
        };
        
        let encoded = rmp_serde::to_vec(&msg).unwrap();
        assert!(encoded.len() > 1024 * 1024); // Should exceed 1MB limit
    }
}

2. Client Tests

#[cfg(test)]
mod client_tests {
    use super::*;
    use tokio::test;

    #[test]
    async fn test_standalone_mode() {
        // No monitor running
        let client = MonitorClient::connect().await.unwrap();
        assert!(!client.is_connected());
        
        // Should not error when sending
        let msg = create_test_message();
        assert!(client.send(msg).await.is_ok());
    }

    #[test]
    async fn test_reconnection() {
        let mut client = MonitorClient::connect().await.unwrap();
        
        // Simulate disconnection
        client.connection = None;
        
        // Should handle gracefully
        let msg = create_test_message();
        assert!(client.send(msg).await.is_ok());
    }
}

3. Storage Tests

#[cfg(test)]
mod storage_tests {
    use super::*;
    use rusqlite::Connection;
    use tempfile::tempdir;

    #[test]
    fn test_concurrent_access() {
        let dir = tempdir().unwrap();
        let db_path = dir.path().join("test.db");
        
        // Multiple connections with WAL mode
        let conn1 = Connection::open(&db_path).unwrap();
        let conn2 = Connection::open(&db_path).unwrap();
        
        conn1.execute("PRAGMA journal_mode = WAL", []).unwrap();
        
        // Concurrent writes should work
        conn1.execute(
            "INSERT INTO logs (timestamp, level, component, message) 
             VALUES (?, ?, ?, ?)",
            params![Utc::now().timestamp(), "INFO", "test", "msg1"],
        ).unwrap();
        
        conn2.execute(
            "INSERT INTO logs (timestamp, level, component, message) 
             VALUES (?, ?, ?, ?)",
            params![Utc::now().timestamp(), "INFO", "test", "msg2"],
        ).unwrap();
        
        // Verify both writes succeeded
        let count: i64 = conn1
            .query_row("SELECT COUNT(*) FROM logs", [], |row| row.get(0))
            .unwrap();
        assert_eq!(count, 2);
    }
}

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---

Integration Testing

1. IPC Communication Tests

#[tokio::test]
async fn test_unix_socket_communication() {
    let dir = tempdir().unwrap();
    let socket_path = dir.path().join("test.sock");
    
    // Start server
    let (tx, mut rx) = mpsc::channel(10);
    let server = Arc::new(IpcServer {
        unix_path: Some(socket_path.to_str().unwrap().to_string()),
        tcp_port: None,
        message_tx: tx,
    });
    
    let server_handle = tokio::spawn(async move {
        server.start().await
    });
    
    // Wait for server to start
    tokio::time::sleep(Duration::from_millis(100)).await;
    
    // Connect client
    let mut client = MonitorClient::connect_to_unix(&socket_path).await.unwrap();
    
    // Send message
    let msg = create_test_log_message();
    client.send(msg.clone()).await.unwrap();
    
    // Verify receipt
    let received = rx.recv().await.unwrap();
    assert_eq!(received.id, msg.id);
}

#[tokio::test]
async fn test_tcp_socket_communication() {
    let port = 19847; // Test port
    
    // Start TCP server
    let (tx, mut rx) = mpsc::channel(10);
    let server = Arc::new(IpcServer {
        unix_path: None,
        tcp_port: Some(port),
        message_tx: tx,
    });
    
    let server_handle = tokio::spawn(async move {
        server.start().await
    });
    
    tokio::time::sleep(Duration::from_millis(100)).await;
    
    // Connect TCP client
    let mut client = MonitorClient::connect_to_tcp("127.0.0.1", port).await.unwrap();
    
    // Send and verify
    let msg = create_test_log_message();
    client.send(msg.clone()).await.unwrap();
    
    let received = rx.recv().await.unwrap();
    assert_eq!(received.id, msg.id);
}

2. Full Workflow Tests

#[tokio::test]
async fn test_log_command_workflow() {
    // Setup
    let test_env = TestEnvironment::new().await;
    
    // Execute CODI2 log command
    let output = Command::new("codi2")
        .args(&["log", "Test message", "--action", "TEST"])
        .output()
        .await
        .unwrap();
    
    assert!(output.status.success());
    
    // Verify local storage
    let logs = test_env.query_logs("message = 'Test message'").await;
    assert_eq!(logs.len(), 1);
    assert_eq!(logs[0].action, "TEST");
    
    // Verify monitor received it
    if test_env.monitor_connected() {
        let monitor_logs = test_env.monitor.get_received_logs().await;
        assert_eq!(monitor_logs.len(), 1);
    }
}

#[tokio::test]
async fn test_export_workflow() {
    let test_env = TestEnvironment::new().await;
    
    // Create export file
    let export_path = test_env.workspace.join("2025-09-28-EXPORT-test.txt");
    fs::write(&export_path, "Test export content").await.unwrap();
    
    // Wait for processing
    tokio::time::sleep(Duration::from_secs(2)).await;
    
    // Verify file was moved
    assert!(!export_path.exists());
    
    // Verify in archive
    let archives = test_env.query_export_archive().await;
    assert_eq!(archives.len(), 1);
    assert!(archives[0].archive_path.contains("20250928"));
}

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---

Performance Testing

1. Latency Benchmarks

#[bench]
fn bench_ipc_roundtrip(b: &mut Bencher) {
    let runtime = tokio::runtime::Runtime::new().unwrap();
    let test_env = runtime.block_on(TestEnvironment::new());
    
    b.iter(|| {
        runtime.block_on(async {
            let msg = create_test_log_message();
            let start = Instant::now();
            test_env.client.send(msg).await.unwrap();
            let response = test_env.client.receive().await.unwrap();
            let duration = start.elapsed();
            
            assert!(duration < Duration::from_millis(1));
            duration
        })
    });
}

#[bench]
fn bench_sqlite_write(b: &mut Bencher) {
    let conn = Connection::open_in_memory().unwrap();
    setup_schema(&conn);
    
    b.iter(|| {
        conn.execute(
            "INSERT INTO logs (timestamp, level, component, message) 
             VALUES (?, ?, ?, ?)",
            params![
                Utc::now().timestamp(),
                "INFO",
                "bench",
                "Benchmark message"
            ],
        ).unwrap()
    });
}

2. Throughput Tests

#[tokio::test]
async fn test_high_volume_logging() {
    let test_env = TestEnvironment::new().await;
    let message_count = 100_000;
    
    let start = Instant::now();
    
    // Send messages concurrently
    let tasks: Vec<_> = (0..message_count)
        .map(|i| {
            let mut client = test_env.client.clone();
            tokio::spawn(async move {
                let msg = create_test_log_message_with_id(i);
                client.send(msg).await.unwrap();
            })
        })
        .collect();
    
    futures::future::join_all(tasks).await;
    
    let duration = start.elapsed();
    let rate = message_count as f64 / duration.as_secs_f64();
    
    println!("Throughput: {:.0} messages/second", rate);
    assert!(rate > 50_000.0); // Minimum 50k msgs/sec
}

3. Resource Usage Tests

#[test]
fn test_memory_usage() {
    let test_env = TestEnvironment::new_blocking();
    
    // Baseline memory
    let baseline = get_process_memory();
    
    // Generate load
    for i in 0..1_000_000 {
        test_env.log_sync(&format!("Message {}", i));
    }
    
    // Check memory growth
    let final_memory = get_process_memory();
    let growth_mb = (final_memory - baseline) / 1024 / 1024;
    
    println!("Memory growth: {} MB", growth_mb);
    assert!(growth_mb < 100); // Less than 100MB growth
}

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---

Failure Scenario Testing

1. Monitor Unavailability

#[tokio::test]
async fn test_monitor_down_scenario() {
    // Start without monitor
    let output = Command::new("codi2")
        .args(&["log", "Monitor is down"])
        .output()
        .await
        .unwrap();
    
    assert!(output.status.success());
    assert!(String::from_utf8_lossy(&output.stdout)
        .contains("Log saved locally"));
    
    // Verify local storage
    let conn = Connection::open(".codi/db/codi.db").unwrap();
    let count: i64 = conn
        .query_row(
            "SELECT COUNT(*) FROM logs WHERE message = 'Monitor is down'",
            [],
            |row| row.get(0),
        )
        .unwrap();
    assert_eq!(count, 1);
}

2. Connection Loss

#[tokio::test]
async fn test_connection_loss_recovery() {
    let mut test_env = TestEnvironment::new().await;
    
    // Send initial message
    test_env.send_log("Before disconnect").await;
    
    // Kill monitor
    test_env.stop_monitor().await;
    
    // Should continue working
    test_env.send_log("During disconnect").await;
    
    // Restart monitor
    test_env.start_monitor().await;
    tokio::time::sleep(Duration::from_secs(1)).await;
    
    // Should reconnect and sync
    test_env.send_log("After reconnect").await;
    
    // Verify all messages eventually synced
    let synced = test_env.get_synced_logs().await;
    assert_eq!(synced.len(), 3);
}

3. Resource Exhaustion

#[tokio::test]
async fn test_disk_full_handling() {
    // Create small ramdisk to simulate full disk
    let ramdisk = create_ramdisk(10 * 1024 * 1024); // 10MB
    let test_env = TestEnvironment::with_path(&ramdisk).await;
    
    // Fill disk with logs
    let mut count = 0;
    loop {
        match test_env.send_log(&format!("Message {}", count)).await {
            Ok(_) => count += 1,
            Err(e) if e.to_string().contains("No space left") => break,
            Err(e) => panic!("Unexpected error: {}", e),
        }
    }
    
    // Should handle gracefully
    assert!(count > 0);
    println!("Handled {} messages before disk full", count);
    
    // Verify error reporting
    let output = Command::new("codi2")
        .args(&["status"])
        .output()
        .await
        .unwrap();
    
    assert!(String::from_utf8_lossy(&output.stdout)
        .contains("Storage warning"));
}

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---

Environment Testing

1. Local vs Container Comparison

#[test]
fn test_environment_detection() {
    // Test detection logic
    std::env::set_var("KUBERNETES_SERVICE_HOST", "10.0.0.1");
    assert_eq!(detect_environment(), Environment::Kubernetes);
    std::env::remove_var("KUBERNETES_SERVICE_HOST");
    
    // Docker detection
    let dockerenv = Path::new("/.dockerenv");
    if dockerenv.exists() {
        assert_eq!(detect_environment(), Environment::Docker);
    } else {
        assert_eq!(detect_environment(), Environment::Local);
    }
}

2. Container Integration

# docker-compose.test.yml
version: '3.8'
services:
  codi-monitor:
    build:
      context: .
      dockerfile: Dockerfile.monitor
    environment:
      CODI_MONITOR_MODE: tcp
      CODI_MONITOR_PORT: 9847
    volumes:
      - codi-data:/var/lib/codi
  
  codi2-test:
    build:
      context: .
      dockerfile: dockerfile.test
    depends_on:
      - codi-monitor
    environment:
      CODI_MONITOR_HOST: codi-monitor
      CODI_MONITOR_PORT: 9847
    command: cargo test --test container_integration

volumes:
  codi-data:

3. Multi-Platform Tests

#[cfg_attr(not(unix), ignore)]
#[test]
fn test_unix_socket_permissions() {
    use std::os::unix::fs::PermissionsExt;
    
    let socket_path = "/tmp/test-codi.sock";
    // Create socket file
    File::create(socket_path).unwrap();
    
    // Set secure permissions
    std::fs::set_permissions(
        socket_path,
        Permissions::from_mode(0o600),
    ).unwrap();
    
    // Verify
    let metadata = std::fs::metadata(socket_path).unwrap();
    let mode = metadata.permissions().mode();
    assert_eq!(mode & 0o777, 0o600);
}

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---

Additional Test Scenarios

1. Network Partition Testing

#[tokio::test]
async fn test_network_partition() {
    let test_env = TestEnvironment::new().await;
    
    // Send initial messages
    test_env.send_log("Before partition").await;
    
    // Simulate network partition
    test_env.block_tcp_port(9847).await;
    
    // Messages should queue locally
    test_env.send_log("During partition").await;
    test_env.send_log("Still partitioned").await;
    
    // Restore connectivity
    test_env.unblock_tcp_port(9847).await;
    
    // Wait for reconnection and sync
    tokio::time::sleep(Duration::from_secs(5)).await;
    
    // Verify all messages eventually delivered
    let logs = test_env.query_monitor_logs().await;
    assert_eq!(logs.len(), 3);
}

2. Clock Skew Testing

#[test]
fn test_clock_skew_handling() {
    let mut test_env = TestEnvironment::new_blocking();
    
    // Set clock 1 hour ahead
    test_env.set_system_time_offset(Duration::from_secs(3600));
    
    // Log entry with future timestamp
    test_env.send_log("Future message").unwrap();
    
    // Reset clock
    test_env.reset_system_time();
    
    // Log normal entry
    test_env.send_log("Normal message").unwrap();
    
    // Verify both stored with corrected timestamps
    let logs = test_env.query_logs_ordered().unwrap();
    assert_eq!(logs.len(), 2);
    
    // Timestamps should be monotonic despite skew
    assert!(logs[0].timestamp <= logs[1].timestamp);
}

3. Upgrade Compatibility Testing

#[test]
fn test_version_compatibility() {
    // Test old client with new monitor
    let old_msg = MessageV1 {
        id: Uuid::new_v4(),
        payload: "old format",
    };
    
    let encoded = encode_v1(&old_msg);
    let result = decode_current(&encoded);
    assert!(result.is_ok(), "Should handle v1 messages");
    
    // Test new client with old monitor
    let new_msg = Message {
        id: Uuid::new_v4(),
        timestamp: Utc::now(),
        payload: MessagePayload::LogEntry { /* ... */ },
        version: 2,
    };
    
    let result = send_to_v1_monitor(&new_msg);
    assert!(result.is_ok(), "Should degrade gracefully");
}

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---

Security Testing

1. Input Validation

#[test]
fn test_message_injection_prevention() {
    let malicious_inputs = vec![
        "'; DROP TABLE logs; --",
        "../../../etc/passwd",
        "\0\0\0\0",
        &"x".repeat(10_000_000), // 10MB string
    ];
    
    for input in malicious_inputs {
        let result = validate_log_message(input);
        assert!(result.is_err() || result.unwrap() != input);
    }
}

2. Authentication Tests

#[tokio::test]
async fn test_tcp_authentication() {
    let test_env = TestEnvironment::new().await;
    
    // Try without auth token
    let mut client = TcpStream::connect("127.0.0.1:9847").await.unwrap();
    let msg = create_test_message();
    let result = send_raw_message(&mut client, &msg).await;
    
    assert!(result.is_err() || 
           result.unwrap().contains("Authentication required"));
    
    // With valid token
    let token = test_env.generate_auth_token();
    let mut auth_client = MonitorClient::connect_with_auth(token).await.unwrap();
    assert!(auth_client.send(msg).await.is_ok());
}

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---

Acceptance Criteria

Functional Requirements

ID	Requirement	Test Coverage
F1	CODI2 commands work without monitor	✓ Standalone tests
F2	Automatic reconnection	✓ Recovery tests
F3	Export file detection < 500ms	✓ Performance tests
F4	Log shipping to Server Hub	✓ Integration tests
F5	Session tracking	✓ Workflow tests

Non-Functional Requirements

ID	Requirement	Test Coverage
P1	IPC latency < 1ms	✓ Benchmarks
P2	100k logs/second	✓ Throughput tests
P3	Memory < 512MB	✓ Resource tests
S1	Secure IPC	✓ Security tests
S2	Input validation	✓ Injection tests

Test Execution Matrix

#!/bin/bash
# run-all-tests.sh

echo "Running CODI2-Monitor Integration Tests"

# Unit tests
cargo test --package codi2 --lib
cargo test --package codi-monitor --lib

# Integration tests
cargo test --test integration

# Performance benchmarks
cargo bench --bench ipc_performance

# Container tests
docker-compose -f docker-compose.test.yml up --abort-on-container-exit

# Security scan
cargo audit
cargo clippy -- -D warnings

# Coverage report
cargo tarpaulin --out Html --output-dir coverage/

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---

Performance Baselines

Established Baselines

Based on prototype testing and benchmarks:

Metric	Baseline	Target	Notes
IPC Latency (Unix)	0.15ms	< 1ms	p99 latency
IPC Latency (TCP)	0.8ms	< 5ms	Local network
Log Write	0.05ms	< 0.1ms	SQLite WAL mode
Export Detection	50ms	< 100ms	inotify event
Batch Sync	2.3s	< 5s	1000 entries
Memory Usage	42MB	< 512MB	Idle state
CPU Usage	0.1%	< 5%	Idle monitoring

Baseline Test Suite

// benches/baselines.rs
use criterion::{black_box, criterion_group, criterion_main, Criterion};

fn establish_baselines(c: &mut Criterion) {
    let runtime = tokio::runtime::Runtime::new().unwrap();
    
    c.bench_function("baseline_ipc_unix", |b| {
        b.iter(|| {
            runtime.block_on(async {
                let msg = create_minimal_message();
                let start = Instant::now();
                send_unix_message(black_box(msg)).await;
                start.elapsed()
            })
        })
    });
    
    c.bench_function("baseline_sqlite_wal", |b| {
        let conn = setup_wal_connection();
        b.iter(|| {
            write_log_entry(&conn, black_box("bench"))
        })
    });
}

criterion_group!(
    name = baselines;
    config = Criterion::default().sample_size(1000);
    targets = establish_baselines
);

Test Automation

CI/CD Pipeline

# .github/workflows/integration-tests.yml
name: CODI2-Monitor Integration Tests

on:
  push:
    paths:
      - 'codi2/**'
      - 'codi-monitor/**'
      - 'codi-common/**'
  pull_request:

jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      
      - name: Setup Rust
        uses: actions-rs/toolchain@v1
        with:
          toolchain: stable
          components: rustfmt, clippy
      
      - name: Run tests
        run: ./scripts/run-all-tests.sh
      
      - name: Upload coverage
        uses: codecov/codecov-action@v3
        with:
          files: ./coverage/tarpaulin-report.html

Test Reports

Generate comprehensive test report:

// tests/common/reporting.rs
pub fn generate_test_report(results: TestResults) -> String {
    format!(
        r#"
# CODI2-Monitor Integration Test Report

Generated: {}

## Summary
- Total Tests: {}
- Passed: {}
- Failed: {}
- Skipped: {}
- Coverage: {:.1}%

## Performance Baselines
- IPC Latency: {:.3}ms (target: <1ms)
- Throughput: {:.0} msg/s (target: >50k)
- Memory Usage: {}MB (limit: 512MB)

## Failure Scenarios
- Monitor Down: {}
- Connection Loss: {}
- Resource Exhaustion: {}

## Recommendations
{}
        "#,
        Utc::now().format("%Y-%m-%d %H:%M:%S UTC"),
        results.total,
        results.passed,
        results.failed,
        results.skipped,
        results.coverage * 100.0,
        results.ipc_latency_ms,
        results.throughput,
        results.memory_mb,
        if results.monitor_down_passed { "✓" } else { "✗" },
        if results.connection_loss_passed { "✓" } else { "✗" },
        if results.resource_exhaustion_passed { "✓" } else { "✗" },
        generate_recommendations(&results),
    )
}

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---

Approval Signatures

Role	Name	Date	Signature
QA Lead			Pending
Development Lead			Pending
DevOps Lead			Pending
Security Lead			Pending

---

Version History

Version	Date	Changes	Author
1.0.0	2025-09-28	Initial test strategy	ORCHESTRATOR-SESSION-2025-09-27
1.1.0	2025-09-28	Added network partition, clock skew, upgrade compatibility tests, and performance baselines per QA review	ORCHESTRATOR-SESSION-2025-09-27

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