assertEquals(1000, sanitized.length());
        assertTrue(sanitized.endsWith("..."));
    }

    @Test
    @DisplayName("Test require non-empty validation")
    void testRequireNonEmpty() {
        assertEquals("test", InputValidator.requireNonEmpty("test", "field"));

        assertThrows(IllegalArgumentException.class, () -> InputValidator.requireNonEmpty(null, "field"));