public static TestPartitionLayout constructInitialPartitionLayoutJSON(TestHardwareLayout testHardwareLayout,
      int partitionCount, String localDc, int basePartitionId) throws JSONException {
    return new TestPartitionLayout(testHardwareLayout, partitionCount, PartitionState.READ_WRITE, 1024L * 1024 * 1024,
        3, localDc, basePartitionId);
  }
Construct a {@link TestPartitionLayout}
@return return the constructed layout.
ambry-clustermap/src/test/java/com/github/ambry/clustermap/TestUtils.java