assertEquals("value with spaces", param.getValues()[0]);
        assertEquals("value@special#chars", param.getValues()[1]);
        assertEquals("日本語", param.getValues()[2]);
    }

    public void test_toString_withValidData() {
        // Test toString with normal data
        String name = "testParam";
        String[] values = { "value1", "value2" };
        RequestParameter param = new RequestParameter(name, values);