Performacne improvements via adding a netty-based openflowj and openflow plugin;...

[controller.git] / third-party / openflowj_netty / src / test / java / org / openflow / util / UnsignedTest.java

diff --git a/third-party/openflowj_netty/src/test/java/org/openflow/util/UnsignedTest.java b/third-party/openflowj_netty/src/test/java/org/openflow/util/UnsignedTest.java
new file mode 100644 (file)
index 0000000..7cdf739
--- /dev/null
+++ b/third-party/openflowj_netty/src/test/java/org/openflow/util/UnsignedTest.java
@@ -0,0 +1,83 @@
+/**
+*    Copyright (c) 2008 The Board of Trustees of The Leland Stanford Junior
+*    University
+* 
+*    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.
+**/
+
+package org.openflow.util;
+
+import java.math.BigInteger;
+import java.nio.ByteBuffer;
+
+import junit.framework.TestCase;
+
+public class UnsignedTest extends TestCase {
+    public static String ULONG_MAX = "18446744073709551615";
+
+  /**
+   * Tests that we correctly extract an unsigned long into a BigInteger
+   * @throws Exception
+   */
+  public void testGetUnsignedLong() throws Exception {
+    ByteBuffer bb = ByteBuffer.allocate(8);
+    bb.put((byte)0xff).put((byte)0xff).put((byte)0xff).put((byte)0xff);
+    bb.put((byte)0xff).put((byte)0xff).put((byte)0xff).put((byte)0xff);
+    bb.position(0);
+    bb.limit(8);
+    BigInteger bi = Unsigned.getUnsignedLong(bb);
+    BigInteger uLongMax = new BigInteger(ULONG_MAX);
+    for (int i = 0; i < uLongMax.bitCount(); ++i) {
+        TestCase.assertTrue("Bit: " + i + " should be: " + uLongMax.testBit(i),
+                uLongMax.testBit(i) == bi.testBit(i));
+    }
+    TestCase.assertEquals(ULONG_MAX, bi.toString());
+
+    bb = ByteBuffer.allocate(10);
+    bb.put((byte)0x00);
+    bb.put((byte)0xff).put((byte)0xff).put((byte)0xff).put((byte)0xff);
+    bb.put((byte)0xff).put((byte)0xff).put((byte)0xff).put((byte)0xff);
+    bb.put((byte)0x00);
+    bb.position(0);
+    bb.limit(10);
+    bi = Unsigned.getUnsignedLong(bb, 1);
+    uLongMax = new BigInteger(ULONG_MAX);
+    for (int i = 0; i < uLongMax.bitCount(); ++i) {
+        TestCase.assertTrue("Bit: " + i + " should be: " + uLongMax.testBit(i),
+                uLongMax.testBit(i) == bi.testBit(i));
+    }
+    TestCase.assertEquals(ULONG_MAX, bi.toString());
+  }
+
+  /**
+   * Tests that we correctly put an unsigned long into a ByteBuffer
+   * @throws Exception
+   */
+  public void testPutUnsignedLong() throws Exception {
+    ByteBuffer bb = ByteBuffer.allocate(8);
+    BigInteger uLongMax = new BigInteger(ULONG_MAX);
+    Unsigned.putUnsignedLong(bb, uLongMax);
+    for (int i = 0; i < 8; ++i) {
+        TestCase.assertTrue("Byte: " + i + " should be 0xff, was: " + bb.get(i),
+                (bb.get(i) & (short)0xff) == 0xff);
+    }
+
+    bb = ByteBuffer.allocate(10);
+    Unsigned.putUnsignedLong(bb, uLongMax, 1);
+    int offset = 1;
+    for (int i = 0; i < 8; ++i) {
+        TestCase.assertTrue("Byte: " + i + " should be 0xff, was: " +
+                bb.get(offset+i), (bb.get(offset+i) & (short)0xff) == 0xff);
+    }
+  }
+}