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diff --git a/tests/org.simantics.db.tests/src/org/simantics/db/tests/api/support/virtualGraphSupport/VirtualGraphTest.java b/tests/org.simantics.db.tests/src/org/simantics/db/tests/api/support/virtualGraphSupport/VirtualGraphTest.java
new file mode 100644
index 000000000..4ff12d68f
--- /dev/null
+++ b/tests/org.simantics.db.tests/src/org/simantics/db/tests/api/support/virtualGraphSupport/VirtualGraphTest.java
@@ -0,0 +1,104 @@
+/*******************************************************************************
+ * 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.virtualGraphSupport;
+
+import java.util.UUID;
+
+import org.junit.Test;
+import org.simantics.databoard.Bindings;
+import org.simantics.db.Resource;
+import org.simantics.db.Session;
+import org.simantics.db.VirtualGraph;
+import org.simantics.db.WriteGraph;
+import org.simantics.db.common.request.WriteRequest;
+import org.simantics.db.common.request.WriteResultRequest;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.service.VirtualGraphSupport;
+import org.simantics.db.testing.base.TestCleanDb;
+import org.simantics.layer0.Layer0;
+
+public class VirtualGraphTest extends TestCleanDb {
+	
+	private Error exception; 
+	
+	@Test
+	public void test() throws DatabaseException {
+		
+		Session session = getSession();
+		
+		session.syncRequest(new WriteRequest() {
+
+			@Override
+			public void perform(WriteGraph graph) throws DatabaseException {
+				
+				Layer0 L0 = Layer0.getInstance(graph);
+
+				final Resource newResource = graph.syncRequest(new WriteResultRequest<Resource>() {
+
+					@Override
+					public Resource perform(WriteGraph graph) throws DatabaseException {
+						
+						Layer0 L0 = Layer0.getInstance(graph);
+						Resource result = graph.newResource();
+						graph.addLiteral(result, L0.HasName, L0.NameOf, L0.String, "RootLibrary", Bindings.STRING);
+						return result;
+						
+					}
+					
+				});
+				
+				String rootName = graph.getRelatedValue(newResource, L0.HasName);
+				if(!rootName.equals("RootLibrary")) {
+					exception = new AssertionError("rootName != 'RootLibrary'");
+					throw exception;
+				}
+
+				VirtualGraphSupport support = graph.getSession().getService(VirtualGraphSupport.class);
+				final VirtualGraph virtual = support.getMemoryPersistent(UUID.randomUUID().toString());
+
+				graph.syncRequest(new WriteRequest(virtual) {
+
+					@Override
+					public void perform(WriteGraph graph) throws DatabaseException {
+						
+						Layer0 L0 = Layer0.getInstance(graph);
+						graph.addLiteral(newResource, L0.HasName, L0.NameOf, L0.String, "RootLibrary2", Bindings.STRING);
+						
+					}
+					
+				});
+				
+				rootName = graph.getRelatedValue(newResource, L0.HasName);
+				if(!rootName.equals("RootLibrary2")) {
+					exception = new AssertionError("rootName != 'RootLibrary2'");
+					throw exception;
+				}
+				
+				support.discard(virtual);
+				
+				rootName = graph.getRelatedValue(newResource, L0.HasName);
+				if(!rootName.equals("RootLibrary")) {
+					exception = new AssertionError("rootName != 'RootLibrary'");
+					throw exception;
+				}
+
+			}
+			
+		});
+		
+		if(exception != null) {
+			fail("Write transaction threw and exception (" + exception.getMessage() + ") which was not passed through ");
+		}
+		
+	}
+
+}