test_sort always assert_pass()

; sort 000E
.macro assert(input, payloadSize, expected)
    ld bc, payloadSize
    call malloc
    jr nz, .failMem
    ld hl, input
    push ix \ pop de \ push de
        ld bc, payloadSize
        ldir
        pop hl \ push hl
        ld de, payloadSize - 1
        add hl, de
        pop de \ push de
        ex de, hl
        call radixSort
        pop hl \ push hl
        ld de, expected
        call compareStrings
    pop ix
    jr nz, .fail
    call free
.endmacro
test_sort:
    assert(.test1, 5, .expected1)
    assert(.test2, 8, .expected2)
    assert(.test3, 10, .expected3)
    assert(.test4, 2, .expected4)
    assert_pass()
.fail:
    call free
.failMem:
    assert_fail()
.undefine assert
.test1:
    .db 7, 4, 8, 6, 0
.expected1:
    .db 4, 5, 7, 8, 0
.test2:
    .db 7, 6, 5, 4, 3, 2, 1, 0
.expected2:
    .db 1, 2, 3, 4, 5, 6, 7, 0
.test3:
    .db 4, 5, 7, 10, 15, 17, 18, 22, 25, 0
.expected3:
    .db 4, 5, 7, 10, 15, 17, 18, 22, 25, 0
.test4:
    .db 7, 0
.expected4:
    .db 7, 0