test_timing/
test_timing.rs

1// Copyright (c) 2026 Christoph Gaffga
2// SPDX-License-Identifier: GPL-3.0-only
3// https://github.com/cgaffga/phasmcore
4
5//! Timing benchmark for Armor and Ghost decode paths.
6//!
7//! Usage: `cargo run -p phasm-core --example test_timing -- <stego.jpg>`
8
9use phasm_core::stego::{armor_decode, ghost_decode};
10use std::time::Instant;
11
12fn main() {
13    let args: Vec<String> = std::env::args().collect();
14    let path = args.get(1).map_or("/tmp/phasm_shared.jpg", |s| s.as_str());
15    let img = std::fs::read(path).unwrap_or_else(|e| {
16        eprintln!("Error reading {path}: {e}");
17        std::process::exit(1);
18    });
19    eprintln!("Image: {} bytes", img.len());
20
21    let start = Instant::now();
22    eprintln!("Trying Armor decode...");
23    match armor_decode(&img, "") {
24        Ok((p, q)) => eprintln!("ARMOR SUCCESS: text='{}' integrity={:.1}% [{:.1}s]", p.text, q.integrity_percent, start.elapsed().as_secs_f64()),
25        Err(e) => eprintln!("ARMOR FAILED: {:?} [{:.1}s]", e, start.elapsed().as_secs_f64()),
26    }
27
28    let start2 = Instant::now();
29    eprintln!("Trying Ghost decode...");
30    match ghost_decode(&img, "") {
31        Ok(p) => eprintln!("GHOST SUCCESS: text='{}' [{:.1}s]", p.text, start2.elapsed().as_secs_f64()),
32        Err(e) => eprintln!("GHOST FAILED: {:?} [{:.1}s]", e, start2.elapsed().as_secs_f64()),
33    }
34}
test_timing/test_timing.rs

test_timing/
test_timing.rs
