Author: j16sdiz
Date: 2009-03-31 15:43:42 +0000 (Tue, 31 Mar 2009)
New Revision: 26282
Added:
trunk/freenet/test/freenet/client/
trunk/freenet/test/freenet/client/CodeTest.java
Log:
JUnit test for FECCodec
Added: trunk/freenet/test/freenet/client/CodeTest.java
===================================================================
--- trunk/freenet/test/freenet/client/CodeTest.java
(rev 0)
+++ trunk/freenet/test/freenet/client/CodeTest.java 2009-03-31 15:43:42 UTC
(rev 26282)
@@ -0,0 +1,85 @@
+package freenet.client;
+
+import junit.framework.Assert;
+import junit.framework.TestCase;
+
+import com.onionnetworks.fec.FECCode;
+import com.onionnetworks.fec.FECCodeFactory;
+import com.onionnetworks.fec.FECMath;
+import com.onionnetworks.fec.PureCode;
+import com.onionnetworks.util.Buffer;
+import com.onionnetworks.util.Util;
+
+public class CodeTest extends TestCase {
+
+ public static FECMath fecMath = new FECMath(8);
+
+ public static final int KK = 192;
+ public static final int PACKET_SIZE = 4096;
+
+ /**
+ * Creates k packets of size sz of random data, encodes them, and tries
to decode. Index
+ * contains the permutation entry.
+ */
+ private static final void encodeDecode(FECCode encode, FECCode decode,
int index[]) {
+ byte[] src = new byte[KK * PACKET_SIZE];
+ Util.rand.nextBytes(src);
+ Buffer[] srcBufs = new Buffer[KK];
+ for (int i = 0; i < srcBufs.length; i++)
+ srcBufs[i] = new Buffer(src, i * PACKET_SIZE,
PACKET_SIZE);
+
+ byte[] repair = new byte[KK * PACKET_SIZE];
+ Buffer[] repairBufs = new Buffer[KK];
+ for (int i = 0; i < repairBufs.length; i++) {
+ repairBufs[i] = new Buffer(repair, i * PACKET_SIZE,
PACKET_SIZE);
+ }
+
+ encode.encode(srcBufs, repairBufs, index);
+ decode.decode(repairBufs, index);
+
+ for (int i = 0; i < src.length; i++)
+ Assert.assertEquals(src[i], repair[i]);
+ }
+
+ public void testSimpleRev() {
+ int lim = fecMath.gfSize + 1;
+ FECCode code = FECCodeFactory.getDefault().createFECCode(KK,
lim);
+ FECCode code2 = new PureCode(KK, lim);
+ int[] index = new int[KK];
+
+ for (int i = 0; i < KK; i++)
+ index[i] = KK - i;
+ encodeDecode(code, code2, index);
+ encodeDecode(code2, code, index);
+ }
+
+ public void testSimple() {
+ int lim = fecMath.gfSize + 1;
+ FECCode code = FECCodeFactory.getDefault().createFECCode(KK,
lim);
+ FECCode code2 = new PureCode(KK, lim);
+ int[] index = new int[KK];
+
+ for (int i = 0; i < KK; i++)
+ index[i] = KK - i;
+ encodeDecode(code, code2, index);
+ encodeDecode(code2, code, index);
+ }
+
+ public void testShifted() {
+ int lim = fecMath.gfSize + 1;
+ FECCode code = FECCodeFactory.getDefault().createFECCode(KK,
lim);
+ FECCode code2 = new PureCode(KK, lim);
+ int[] index = new int[KK];
+
+ int max_i0 = KK / 2;
+ if (max_i0 + KK > lim)
+ max_i0 = lim - KK;
+
+ for (int s = 1; s <= max_i0; s++) {
+ for (int i = 0; i < KK; i++)
+ index[i] = i + s;
+ encodeDecode(code, code2, index);
+ encodeDecode(code2, code, index);
+ }
+ }
+}
Property changes on: trunk/freenet/test/freenet/client/CodeTest.java
___________________________________________________________________
Added: svn:mime-type
+ text/x-java
Added: svn:keywords
+ Id
Added: svn:eol-style
+ native
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