### Question:
S3MultipartUploadCompleteRequest extends OMKeyRequest { @Override public OMRequest preExecute(OzoneManager ozoneManager) throws IOException { MultipartUploadCompleteRequest multipartUploadCompleteRequest = getOmRequest().getCompleteMultiPartUploadRequest(); KeyArgs keyArgs = multipartUploadCompleteRequest.getKeyArgs(); return getOmRequest().toBuilder() .setCompleteMultiPartUploadRequest(multipartUploadCompleteRequest .toBuilder().setKeyArgs(keyArgs.toBuilder() .setModificationTime(Time.now()) .setKeyName(validateAndNormalizeKey( ozoneManager.getEnableFileSystemPaths(), keyArgs.getKeyName())))) .setUserInfo(getUserInfo()).build(); } S3MultipartUploadCompleteRequest(OMRequest omRequest); @Override OMRequest preExecute(OzoneManager ozoneManager); @Override @SuppressWarnings("methodlength") OMClientResponse validateAndUpdateCache(OzoneManager ozoneManager,
      long trxnLogIndex, OzoneManagerDoubleBufferHelper omDoubleBufferHelper);  }### Answer:
@Test public void testPreExecute() throws Exception { String volumeName = UUID.randomUUID().toString(); String bucketName = UUID.randomUUID().toString(); String keyName = UUID.randomUUID().toString(); doPreExecuteCompleteMPU(volumeName, bucketName, keyName, UUID.randomUUID().toString(), new ArrayList<>()); }