Map<String, Object> source2 = event.toSource();
        assertSame(source1, source2);
    }

    // Test edge cases for version numbers
    @Test
    public void test_versionNumberEdgeCases() {
        TestSearchLogEvent event = new TestSearchLogEvent("id", 0L, "type");

        // Test minimum value
        event.setVersionNo(Long.MIN_VALUE);