Initial opendaylight infrastructure commit!!
[controller.git] / third-party / openflowj / src / test / java / org / openflow / util / U64Test.java
diff --git a/third-party/openflowj/src/test/java/org/openflow/util/U64Test.java b/third-party/openflowj/src/test/java/org/openflow/util/U64Test.java
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+
+/*
+ * Copyright (c) 2013 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.openflow.util;
+
+import java.math.BigInteger;
+
+import junit.framework.TestCase;
+
+public class U64Test extends TestCase {
+  /**
+   * Tests that we correctly translate unsigned values in and out of a long
+   * @throws Exception
+   */
+  public void test() throws Exception {
+      BigInteger val = new BigInteger("ffffffffffffffff", 16);
+      TestCase.assertEquals(-1, U64.t(val));
+      TestCase.assertEquals(val, U64.f(-1));
+  }
+}