Is the README correct? about test-case HOT 2 CLOSED

#[cfg(test)] // Skip this and next line if 2018 edition
extern crate test_case;

#[cfg(test)]
mod tests {
    use test_case::test_case;

    #[test_case( 2,  4 ; "when both operands are possitive")]
    #[test_case( 4,  2 ; "when operands are swapped")]
    #[test_case(-2, -4 ; "when both operands are negative")]
    fn multiplication_tests(x: i8, y: i8) {
        let actual = (x * y).abs();

        assert_eq!(8, actual)
    }
}

#[cfg(test)]
mod tests {
    extern crate test_case;
    use self::test_case::test_case; // Remember about `self::`

    #[test_case( 2,  4 ; "when both operands are possitive")]
    #[test_case( 4,  2 ; "when operands are swapped")]
    #[test_case(-2, -4 ; "when both operands are negative")]
    fn multiplication_tests(x: i8, y: i8) {
        let actual = (x * y).abs();

        assert_eq!(8, actual)
    }
}

extern crate test_case; // Again in 2018 ed you can skip this line.

use test_case::test_case;

#[test_case( 2,  4 ; "when both operands are possitive")]
#[test_case( 4,  2 ; "when operands are swapped")]
#[test_case(-2, -4 ; "when both operands are negative")]
fn multiplication_tests(x: i8, y: i8) {
    let actual = (x * y).abs();

    assert_eq!(8, actual)
}