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diff --git a/src/test/java/org/onap/dmaap/mr/test/support/MRBatchingPublisherMock.java b/src/test/java/org/onap/dmaap/mr/test/support/MRBatchingPublisherMock.java
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+/*******************************************************************************
+ *  ============LICENSE_START=======================================================
+ *  org.onap.dmaap
+ *  ================================================================================
+ *  Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ *  ================================================================================
+ *  Modifications Copyright © 2021 Orange.
+ *  ================================================================================
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *  ============LICENSE_END=========================================================
+ *
+ *  ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ *
+ *******************************************************************************/
+
+package org.onap.dmaap.mr.test.support;
+
+import org.onap.dmaap.mr.client.MRBatchingPublisher;
+import org.onap.dmaap.mr.client.response.MRPublisherResponse;
+import org.slf4j.Logger;
+
+import java.util.Collection;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * A helper for unit testing systems that use a MRPublisher. When setting
+ * up your test, inject an instance into MRClientFactory to have it return
+ * the mock client.
+ *
+ * @author author
+ */
+public class MRBatchingPublisherMock implements MRBatchingPublisher {
+    public class Entry {
+        public Entry(String partition, String msg) {
+            fPartition = partition;
+            fMessage = msg;
+        }
+
+        @Override
+        public String toString() {
+            return fMessage;
+        }
+
+        public final String fPartition;
+        public final String fMessage;
+    }
+
+    public MRBatchingPublisherMock() {
+        fCaptures = new LinkedList<>();
+    }
+
+    public interface Listener {
+        void onMessage(Entry e);
+    }
+
+    public void addListener(Listener listener) {
+        fListeners.add(listener);
+    }
+
+    public List<Entry> getCaptures() {
+        return getCaptures(new MessageFilter() {
+            @Override
+            public boolean match(String msg) {
+                return true;
+            }
+        });
+    }
+
+    public interface MessageFilter {
+        boolean match(String msg);
+    }
+
+    public List<Entry> getCaptures(MessageFilter filter) {
+        final LinkedList<Entry> result = new LinkedList<>();
+        for (Entry capture : fCaptures) {
+            if (filter.match(capture.fMessage)) {
+                result.add(capture);
+            }
+        }
+        return result;
+    }
+
+    public int received() {
+        return fCaptures.size();
+    }
+
+    public void reset() {
+        fCaptures.clear();
+    }
+
+    @Override
+    public int send(String partition, String msg) {
+        final Entry e = new Entry(partition, msg);
+
+        fCaptures.add(e);
+        for (Listener l : fListeners) {
+            l.onMessage(e);
+        }
+        return 1;
+    }
+
+    @Override
+    public int send(Message msg) {
+        return send(msg.fPartition, msg.fMsg);
+    }
+
+    @Override
+    public int send(String msg) {
+        return 1;
+
+    }
+
+    @Override
+    public int send(Collection<Message> msgs) {
+        int sum = 0;
+        for (Message m : msgs) {
+            sum += send(m);
+        }
+        return sum;
+    }
+
+    @Override
+    public int getPendingMessageCount() {
+        return 0;
+    }
+
+    @Override
+    public List<Message> close(long timeout, TimeUnit timeoutUnits) {
+        return new LinkedList<>();
+    }
+
+    @Override
+    public void close() {
+    }
+
+    @Override
+    public void setApiCredentials(String apiKey, String apiSecret) {
+    }
+
+    @Override
+    public void clearApiCredentials() {
+    }
+
+    @Override
+    public void logTo(Logger log) {
+    }
+
+    private final LinkedList<Entry> fCaptures;
+    private LinkedList<Listener> fListeners = new LinkedList<>();
+
+    @Override
+    public MRPublisherResponse sendBatchWithResponse() {
+        // TODO Auto-generated method stub
+        return null;
+    }
+}