assertNotNull(result);
        assertTrue(result.length() > 0);
        // Check that it contains class name or relevant info
        assertTrue(result.contains("FessTimeResourceProvider") || result.contains("adjustTimeMillis"));
    }

    // Test multiple provider instances
    @Test
    public void test_multipleInstances() {
        FessTimeResourceProvider provider1 = new FessTimeResourceProvider(mockConfig);