#![allow(deprecated)]

use assertify::testify;

testify!(simple_eq, 1 + 2 == 3);

fn add(a: i32, b: i32) -> i32 {
    a + b
}

testify!(add_pos, add(1, 2) == 3);
testify!(add_neg, add(-1, 2) == 1);
testify!(add_all_expressions, add(add(1, 1), 5 - 3) == 2 + 5 - 3);

fn concat(a: &str, b: &str) -> String {
    let mut s = String::with_capacity(a.len() + b.len());
    s.push_str(a);
    s.push_str(b);
    s
}

testify!(concat_literal, concat("a", "b") == "ab");

fn concat_bytes(a: &[u8], b: &[u8]) -> Vec<u8> {
    let mut v = Vec::with_capacity(a.len() + b.len());
    v.extend_from_slice(a);
    v.extend_from_slice(b);
    v
}

testify!(concat_bytes_literals, concat_bytes(b"a", b"b") == b"ab");

fn result(good: bool) -> Result<(), &'static str> {
    if good {
        Ok(())
    } else {
        Err("bad")
    }
}

testify!(literal_true, true);
testify!(boolean_logic, true && true);

testify!(result_ok, result(true) == Ok(()));
testify!(result_unwrap, result(true).unwrap() == ());
testify!(result_err, result(false) == Err("bad"));
testify!(result_not_ok, result(false) != Ok(()));
testify!(result_not_err, result(false) != Err("nope"));