assertNotNull(exception);
        assertNull(exception.getMessage());
        assertNull(exception.getCause());
    }

    /**
     * Test stack trace functionality
     */
    public void test_stackTrace() {
        CrawlerSystemException exception = new CrawlerSystemException("Stack trace test");

        StackTraceElement[] stackTrace = exception.getStackTrace();
        assertNotNull(stackTrace);

    }

    @Test
    public void testStackTrace() {
        CurlException exception = new CurlException("Test message");
        StackTraceElement[] stackTrace = exception.getStackTrace();

        assertNotNull(stackTrace);
        assertTrue(stackTrace.length > 0);
        assertEquals("testStackTrace", stackTrace[0].getMethodName());
    }