//     1    |  TESTIF |  SKIP   |  TEST   |    X

    // - SKIP: always skip
    // - TEST: always test
    // - TESTIF: only test if checkUnignored
    // - X: that never happen

    // @param {boolean} whether should check if the path is unignored,
    //   setting `checkUnignored` to `false` could reduce additional
    //   path matching.