Check if two string arrays are equivalent

#[test]
fn t1() {
    let start = std::time::Instant::now();
    let val = Solution::array_strings_are_equal(sv(&["ab", "c"]), sv(&["a", "bc"]));
    let expected = true;
    log_result!(val == expected, "t1", start, &expected, &val);
    assert!(val);
}

#[test]
fn t2() {
    let start = std::time::Instant::now();
    let val = Solution::array_strings_are_equal(sv(&["a", "cb"]), sv(&["ab", "c"]));
    let expected = false;
    log_result!(val == expected, "t2", start, &expected, &val);
    assert!(!val);
}

#[test]
fn t3() {
    let start = std::time::Instant::now();
    let val = Solution::array_strings_are_equal(sv(&["abc", "d", "defg"]), sv(&["abcddefg"]));
    let expected = true;
    log_result!(val == expected, "t3", start, &expected, &val);
    assert!(val);
}

#[test]
fn t4() {
    let start = std::time::Instant::now();
    let val = Solution::array_strings_are_equal(sv(&["xyz"]), sv(&["x", "y", "z"]));
    let expected = true;
    log_result!(val == expected, "t4", start, &expected, &val);
    assert!(val);
}

#[test]
fn t5() {
    let start = std::time::Instant::now();
    let val = Solution::array_strings_are_equal(sv(&["a", "b"]), sv(&["c"]));
    let expected = false;
    log_result!(val == expected, "t5", start, &expected, &val);
    assert!(!val);
}