#[macro_use] extern crate lazy_static;
extern crate find_folder;
use find_folder::Search;

extern crate unichars;
use unichars::*;

lazy_static! {
	static ref PATH: ::std::path::PathBuf = { Search::ParentsThenKids(3, 3).for_folder("target").unwrap().join(::std::path::Path::new("debug/pwgenr")) };
}

macro_rules! exe {
	($($arg:expr),*) => {
		match ::std::process::Command::new(&*PATH)
			// Start a repetition:
			$(
				// Each repeat will contain the following statement, with
				// $arg replaced with the corresponding expression.
				.arg($arg)
			)*
			.output()
			.expect("failed to execute process") {
			   ::std::process::Output { status: _, stdout: out, stderr: err } => {
					let out = String::from_utf8(out).unwrap();
					let err = String::from_utf8(err).unwrap();
					println!("out\n{}\nerr\n{}", out, err);
					// skip last empty line
					(out.rsplit('\n').skip(1).map(|x| x.to_string()).collect::<Vec<_>>(), err)
				}
			}
	}
}

#[test]
fn length_amount() {
	let (out, _) = exe!("19", "15");
	assert_eq!(out.len(), 15);
	for line in &out {
		assert_eq!(line.chars().count(), 19);
	}
}

#[test]
fn ascii() {
	let (out, _) = exe!("-a", "1", "10");
	assert_eq!(out.len(), 10);
	for line in &out {
		assert_eq!(line.chars().count(), 1);
		for c in line.chars() {
			assert!(ASCII.contains(&c));
		}
	}
}

#[test]
fn categories() {
	let (out, _) = exe!("-c", "box", "arrows", "--", "16", "20");
	assert_eq!(out.len(), 20);
	for line in &out {
		assert_eq!(line.chars().count(), 16);
		for c in line.chars() {
			assert!(BOX.contains(&c) || ARROWS.contains(&c));
		}
	}
}

#[test]
fn empty() {
	let (out, _) = exe!("0", "0");
	assert_eq!(out.len(), 0);
}