aprender-test-cli 0.37.0

//! Stress Testing Example
//!
//! Demonstrates the browser/WASM stress testing features from Section H
//! of PROBAR-SPEC-WASM-001.
//!
//! Run with: cargo run --example stress_testing
//!
//! Or use the CLI:
//! ```bash
//! probar stress --atomics        # SharedArrayBuffer lock contention
//! probar stress --worker-msg     # Worker message throughput
//! probar stress --render         # Render loop stability
//! probar stress --trace          # Tracing overhead measurement
//! probar stress --full           # All stress tests combined
//! ```

use probador::{render_stress_report, StressConfig, StressRunner};

fn main() {
    println!("=== Probar Stress Testing Demo ===\n");

    // 1. Atomics Stress Test (Point 116)
    println!("1. Running Atomics Stress Test...");
    println!("   Pass Criteria: SharedArrayBuffer lock contention > 10k ops/sec\n");

    let config = StressConfig::atomics(2, 4); // 2 seconds, 4 workers
    let runner = StressRunner::new(config);
    let result = runner.run();
    println!("{}", render_stress_report(&result));

    // 2. Worker Message Stress Test (Point 117)
    println!("\n2. Running Worker Message Stress Test...");
    println!("   Pass Criteria: Message throughput > 5k msg/sec\n");

    let config = StressConfig::worker_msg(2, 4);
    let runner = StressRunner::new(config);
    let result = runner.run();
    println!("{}", render_stress_report(&result));

    // 3. Render Loop Stress Test (Point 118)
    println!("\n3. Running Render Loop Stress Test...");
    println!("   Pass Criteria: 60 FPS maintained (< 5% frame drops)\n");

    let config = StressConfig::render(2);
    let runner = StressRunner::new(config);
    let result = runner.run();
    println!("{}", render_stress_report(&result));

    // 4. Tracing Overhead Stress Test (Point 119)
    println!("\n4. Running Tracing Overhead Stress Test...");
    println!("   Pass Criteria: renacer overhead < 5%\n");

    let config = StressConfig::trace(2);
    let runner = StressRunner::new(config);
    let result = runner.run();
    println!("{}", render_stress_report(&result));

    // 5. Full System Stress Test (Point 123)
    println!("\n5. Running Full System Stress Test...");
    println!("   Pass Criteria: All sub-tests pass\n");

    let config = StressConfig::full(8, 4); // 8 seconds total (2 per sub-test)
    let runner = StressRunner::new(config);
    let result = runner.run();
    println!("{}", render_stress_report(&result));

    // Summary
    println!("\n=== Stress Testing Complete ===");
    println!("\nSection H Checklist (Points 116-125):");
    println!(
        "  [116] Browser Stress: Atomics        - {}",
        status_icon(true)
    );
    println!(
        "  [117] Browser Stress: Message Queue  - {}",
        status_icon(true)
    );
    println!(
        "  [118] Browser Stress: Render Loop    - {}",
        status_icon(true)
    );
    println!(
        "  [119] Browser Stress: Tracing        - {}",
        status_icon(true)
    );
    println!("  [120] Protocol Load: Locust          - Use `locust -f load_test.py`");
    println!("  [121] Protocol Load: K6              - Use `k6 run load_test.js`");
    println!("  [122] Protocol Load: Connection Leaks- Use `netstat` monitoring");
    println!(
        "  [123] Hybrid Load: Full System       - {}",
        status_icon(true)
    );
    println!("  [124] Memory Leak under Load         - Use `valgrind`/`heaptrack`");
    println!("  [125] Recovery from Saturation       - Use chaos injection");
}

fn status_icon(passed: bool) -> &'static str {
    if passed {
        "IMPLEMENTED"
    } else {
        "PENDING"
    }
}