// Copyright © 2025 Mikhail Hogrefe
//
// This file is part of Malachite.
//
// Malachite is free software: you can redistribute it and/or modify it under the terms of the GNU
// Lesser General Public License (LGPL) as published by the Free Software Foundation; either version
// 3 of the License, or (at your option) any later version. See <https://www.gnu.org/licenses/>.

use itertools::Itertools;
use malachite_base::num::basic::traits::Zero;
use malachite_base::strings::ToDebugString;
use malachite_nz::integer::Integer;
use malachite_nz::integer::exhaustive::integer_increasing_range_to_infinity;

fn integer_increasing_range_to_infinity_helper(a: Integer, values: &str) {
    let xs = integer_increasing_range_to_infinity(a)
        .take(20)
        .collect_vec()
        .to_debug_string();
    assert_eq!(xs, values);
}

#[test]
fn test_integer_increasing_range_to_infinity() {
    integer_increasing_range_to_infinity_helper(
        Integer::ZERO,
        "[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19]",
    );
    integer_increasing_range_to_infinity_helper(
        Integer::from(10),
        "[10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29]",
    );
    integer_increasing_range_to_infinity_helper(
        Integer::from(-10),
        "[-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]",
    );
}
