silkgen 0.4.0

Generate KiCad silkscreen art from PNGs.
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use crate::generate;
use crate::opt::{Arguments, Config};
use clap::CommandFactory;

#[test]
fn verify_cli() {
    Arguments::command().debug_assert();
}

fn run_against(name: &str, file: &[u8], invert: bool) -> String {
    let image = image::load_from_memory(file).unwrap();

    let config = Config {
        pixel_pitch: "1mm".parse().unwrap(),
        clearance: "0.1mm".parse().unwrap(),
        invert,
    };

    let mut out = Vec::new();

    generate::output_file(name, image, &config, &mut out).unwrap();

    let out = String::from_utf8(out).unwrap();

    out.replace(env!("CARGO_PKG_VERSION"), "x.x.x")
}

macro_rules! test {
    ($name:ident, $file:literal) => {
        #[test]
        fn $name() {
            insta::assert_snapshot!(run_against(stringify!($name), include_bytes!($file), false));
            insta::assert_snapshot!(
                concat!(stringify!($name), "-invert"),
                run_against(stringify!($name), include_bytes!($file), true)
            );
        }
    };
}

test!(basic, "basic.png");
test!(clearance, "clearance.png");
test!(annoying_dog, "annoying_dog.png");