@Override public HashSlotCursor16byteKey cursor() {
        return new CursorLongKey2();
    }
@Test
    @RequireAssertEnabled
    public void testCursor_advance_afterAdvanceReturnsFalse() {
        insert(randomKey(), randomKey());

        HashSlotCursor16byteKey cursor = hsa.cursor();
        cursor.advance();
        cursor.advance();

        assertThrows(AssertionError.class, cursor::advance);
    }