function putBucketMock(bucketName, location, cb) {
    const bucket = new BucketInfo(
        bucketName,
        baseMd['owner-id'],
        baseMd['owner-display-name'],
        new Date().toJSON(),
        null,
        null,
        null,
        null,
        null,
        null,
        location);
    return metadata.createBucket(bucketName, bucket, log, cb);
}
Mocks a Put Object to store custom metadata
@param {string} bucketName - the bucket name
@param {string|null} location - the bucket location
@param {Function} cb - callback once the bucket MD is created
@returns {undefined}