// SPDX-License-Identifier: MIT OR Apache-2.0
fn doubled(value: Int) -> Int {
    return value * 2;
}

test fn doubles_a_number() {
    assert(doubled(3) == 6);
}

test fn empty_vector() {
    let values: Vec<Int> = [];
    assert_msg(values.len() == 0, "an empty vector has no items");
}