void verifyNotificationsForFailedPut() {
      Set<String> blobIdsVisited = new HashSet<>();
      for (MockServer mockServer : mockServerLayout.getMockServers()) {
        for (Map.Entry<String, StoredBlob> blobEntry : mockServer.getBlobs().entrySet()) {
          if (blobIdsVisited.add(blobEntry.getKey())) {
            StoredBlob blob = blobEntry.getValue();
            verifyNotification(blobEntry.getKey(), NotificationBlobType.DataChunk, blob.properties);
          }
        }
      }
    }
Verify that onBlobCreated notifications were created for the data chunks of a failed put.
ambry-router/src/test/java/com/github/ambry/router/PutManagerTest.java