#![allow(clippy::unit_cmp)]

#[macro_use]
mod common;

use common::*;

#[test]
fn test_as_dangerous() {
    assert_eq!(input!(b"").as_dangerous(), b"");
    assert_eq!(input!(b"hello").as_dangerous(), b"hello");
}

#[test]
fn test_into_non_empty() {
    // Valid
    assert_eq!(
        input!(b"hello").into_non_empty::<Expected>().unwrap(),
        b"hello"[..],
    );
    // Invalid
    let _ = input!(b"").into_non_empty::<Expected>().unwrap_err();
}

#[test]
fn test_to_dangerous_str() {
    // Valid
    assert_eq!(input!(b"").to_dangerous_str::<Expected>().unwrap(), "");
    assert_eq!(
        input!(b"hello").to_dangerous_str::<Expected>().unwrap(),
        "hello"
    );
    // Invalid
    let _ = input!(b"\xff").to_dangerous_str::<Expected>().unwrap_err();
}

#[test]
fn test_to_dangerous_str_expected_length() {
    // Length 1
    input!(&[0b0111_1111])
        .to_dangerous_str::<Expected>()
        .unwrap();
    // Length 2
    let err = input!(&[0b1101_1111])
        .to_dangerous_str::<Expected>()
        .unwrap_err();
    assert_eq!(err.to_retry_requirement(), RetryRequirement::new(1));
    // Length 3
    let err = input!(&[0b1110_1111])
        .to_dangerous_str::<Expected>()
        .unwrap_err();
    assert_eq!(err.to_retry_requirement(), RetryRequirement::new(2));
    // Invalid
    let err = input!(&[0b1111_0111])
        .to_dangerous_str::<Expected>()
        .unwrap_err();
    assert_eq!(err.to_retry_requirement(), None);
}

#[test]
fn test_read_all() {
    // Valid
    assert_eq!(read_all_ok!(b"hello", |r| { r.consume(b"hello") }), ());
    assert_eq!(read_all_ok!(b"hello", |r| { r.take(5) }), input!(b"hello"));
    // Invalid
    assert_eq!(
        read_all_err!(b"hello", |r| { r.consume(b"hell") }).to_retry_requirement(),
        None
    );
    assert_eq!(
        read_all_err!(b"hello", |r| { r.take(4) }).to_retry_requirement(),
        None
    );
    assert_eq!(
        read_all_err!(b"hello", |r| { r.take(10) }).to_retry_requirement(),
        RetryRequirement::new(5)
    );
}

#[test]
fn test_read_partial() {
    // Valid
    assert_eq!(
        read_partial_ok!(b"hello", |r| { r.consume(b"hello") }),
        ((), input!(b""))
    );
    assert_eq!(
        read_partial_ok!(b"hello", |r| { r.take(5) }),
        (input!(b"hello"), input!(b""))
    );
    assert_eq!(
        read_partial_ok!(b"hello", |r| { r.consume(b"hell") }),
        ((), input!(b"o"))
    );
    // Invalid
    assert_eq!(
        read_partial_err!(b"hello", |r| { r.take(10) }).to_retry_requirement(),
        RetryRequirement::new(5)
    );
}

#[test]
fn test_read_infallible() {
    assert_eq!(
        read_infallible!(b"hello", |r| {
            r.take_while(|b: u8| b.is_ascii_alphabetic())
        }),
        (input!(b"hello"), input!(b""))
    );
    assert_eq!(
        read_infallible!(b"hello1", |r| {
            r.take_while(|b: u8| b.is_ascii_alphabetic())
        }),
        (input!(b"hello"), input!(b"1"))
    );
}