+/*
+ * Copyright (c) 2016 Cisco Systems, Inc. and others. 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
+ */
+package org.opendaylight.controller.cluster.common.actor;
+
+import com.google.common.base.Ticker;
+
+/**
+ * Utility {@link Ticker} where passage of time is explicitly controlled via {@link #increment(long)}.
+ *
+ * @author Robert Varga
+ */
+public final class TestTicker extends Ticker {
+ private long counter = 0;
+
+ @Override
+ public long read() {
+ return counter;
+ }
+
+ public long increment(final long ticks) {
+ counter += ticks;
+ return counter;
+ }
+}