private DiskId getDiskId() {
    return DiskId.createDiskId(1024, true /* is persistence type */, true);
  }
Tests that an instance of 'LongOplogOffsetDiskId' is created when max-oplog-size (in bytes)
passed is greater than Integer.MAX_VALUE
geode-core/src/test/java/org/apache/geode/internal/cache/DiskIdJUnitTest.java