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diff --git a/tests/org.simantics.db.tests/src/org/simantics/db/tests/api/support/clusterControl/CreateAndCollectBigClusterInUpdateTest.java b/tests/org.simantics.db.tests/src/org/simantics/db/tests/api/support/clusterControl/CreateAndCollectBigClusterInUpdateTest.java
new file mode 100644
index 000000000..66d80f6ba
--- /dev/null
+++ b/tests/org.simantics.db.tests/src/org/simantics/db/tests/api/support/clusterControl/CreateAndCollectBigClusterInUpdateTest.java
@@ -0,0 +1,87 @@
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.db.tests.api.support.clusterControl;
+
+import java.util.Arrays;
+
+import org.junit.Test;
+import org.simantics.databoard.Bindings;
+import org.simantics.db.Resource;
+import org.simantics.db.WriteGraph;
+import org.simantics.db.common.request.WriteRequest;
+import org.simantics.db.event.ChangeEvent;
+import org.simantics.db.event.ChangeListener;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.service.ClusterControl;
+import org.simantics.db.service.GraphChangeListenerSupport;
+import org.simantics.db.testing.cases.FreshDatabaseTest;
+
+public class CreateAndCollectBigClusterInUpdateTest extends FreshDatabaseTest {
+
+	Resource resource1;
+	Resource resource2;
+	Resource resource3;
+	
+	@Test
+    public void test() throws Exception{
+
+        GraphChangeListenerSupport changeListenerSupport = getSession().getService(GraphChangeListenerSupport.class);
+        changeListenerSupport.addMetadataListener( new ChangeListener() {
+			
+			@Override
+			public void graphChanged(ChangeEvent e) throws DatabaseException {
+
+				// Collect
+		        ClusterControl cc = e.getGraph().getService(ClusterControl.class);
+		        cc.collectClusters(Integer.MAX_VALUE);
+
+		        Arrays.equals(testArray(10), (byte[])e.getGraph().getValue(resource1, Bindings.BYTE_ARRAY));
+		        Arrays.equals(testArray(100000), (byte[])e.getGraph().getValue(resource2, Bindings.BYTE_ARRAY));
+		        Arrays.equals(testArray(10), (byte[])e.getGraph().getValue(resource3, Bindings.BYTE_ARRAY));
+				
+			}
+			
+		} );
+
+        
+        getSession().sync(new WriteRequest() {
+
+			@Override
+			public void perform(WriteGraph g) throws DatabaseException {
+				
+                g.flushCluster();
+
+                for(int i=0;i<1000;i++) g.newResource();
+                resource1 = g.newResource();
+                g.claimValue(resource1, testArray(10), Bindings.BYTE_ARRAY);
+                
+                for(int i=0;i<1000;i++) g.newResource();
+                resource2 = g.newResource();
+                g.claimValue(resource2, testArray(100000), Bindings.BYTE_ARRAY);
+                
+                for(int i=0;i<1000;i++) g.newResource();
+                resource3 = g.newResource();
+                g.claimValue(resource3, testArray(10), Bindings.BYTE_ARRAY);
+				
+			}
+        	
+        });
+
+    }
+	
+	byte[] testArray(int size) {
+		byte[] result = new byte[size];
+		for(int i=0;i<size;i++) result[i] = (byte)i;
+		return result;
+	}
+
+}