Java tutorial
/* * A NDNx library test. * * Portions Copyright (C) 2013 Regents of the University of California. * * Based on the CCNx C Library by PARC. * Copyright (C) 2008-2013 Palo Alto Research Center, Inc. * * This work is free software; you can redistribute it and/or modify it under * the terms of the GNU General Public License version 2 as published by the * Free Software Foundation. * This work is distributed in the hope that it will be useful, but WITHOUT ANY * WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * for more details. You should have received a copy of the GNU General Public * License along with this program; if not, write to the * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, * Boston, MA 02110-1301, USA. */ package org.ndnx.ndn.io.content; import static org.junit.Assert.fail; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.IOException; import org.bouncycastle.util.Arrays; import org.ndnx.ndn.impl.support.Log; import org.ndnx.ndn.io.content.Collection; import org.ndnx.ndn.io.content.ContentDecodingException; import org.ndnx.ndn.io.content.ContentNotReadyException; import org.ndnx.ndn.io.content.Link; import org.ndnx.ndn.io.content.LinkAuthenticator; import org.ndnx.ndn.protocol.NDNTime; import org.ndnx.ndn.protocol.ContentName; import org.ndnx.ndn.protocol.PublisherID; import org.ndnx.ndn.protocol.SignedInfo; import org.ndnx.ndn.protocol.PublisherID.PublisherType; import org.junit.Assert; import org.junit.BeforeClass; import org.junit.Test; /** * Test low level (non-NDN) EncodableObject functionality, backing objects to ByteArrayOutputStreams. **/ public class EncodableObjectTest { static final String baseName = "test"; static final String subName = "smetters"; static final String document1 = "intro.html"; static final String document2 = "key"; static final String document3 = "cv.txt"; static final String prefix = "drawing_"; static ContentName name = null; static ContentName name2 = null; static ContentName name3 = null; static ContentName name4 = null; static ContentName[] ns = null; static public byte[] contenthash1 = new byte[32]; static public byte[] contenthash2 = new byte[32]; static public byte[] publisherid1 = new byte[32]; static public byte[] publisherid2 = new byte[32]; static PublisherID pubID1 = null; static PublisherID pubID2 = null; static int NUM_LINKS = 100; static LinkAuthenticator[] las = new LinkAuthenticator[NUM_LINKS]; static Link[] lrs = null; static Collection small1; static Collection small2; static Collection empty; static Collection big; @BeforeClass public static void setUpBeforeClass() throws Exception { ns = new ContentName[NUM_LINKS]; for (int i = 0; i < NUM_LINKS; ++i) { ns[i] = new ContentName(baseName, subName, document1, prefix + Integer.toString(i)); } Arrays.fill(publisherid1, (byte) 6); Arrays.fill(publisherid2, (byte) 3); pubID1 = new PublisherID(publisherid1, PublisherType.KEY); pubID2 = new PublisherID(publisherid2, PublisherType.ISSUER_KEY); las[0] = new LinkAuthenticator(pubID1); las[1] = null; las[2] = new LinkAuthenticator(pubID2, null, null, SignedInfo.ContentType.DATA, contenthash1); las[3] = new LinkAuthenticator(pubID1, null, NDNTime.now(), null, contenthash1); for (int j = 4; j < NUM_LINKS; ++j) { las[j] = new LinkAuthenticator(pubID2, null, NDNTime.now(), null, null); } lrs = new Link[NUM_LINKS]; for (int i = 0; i < lrs.length; ++i) { lrs[i] = new Link(ns[i], las[i]); } empty = new Collection(); small1 = new Collection(); small2 = new Collection(); for (int i = 0; i < 5; ++i) { small1.add(lrs[i]); small2.add(lrs[i + 5]); } big = new Collection(); for (int i = 0; i < NUM_LINKS; ++i) { big.add(lrs[i]); } } @Test public void testSave() { Log.info(Log.FAC_TEST, "Starting testSave"); EncodableCollectionData ecd0 = new EncodableCollectionData(empty); EncodableCollectionData ecd1 = new EncodableCollectionData(small1); EncodableCollectionData ecd2 = new EncodableCollectionData(small1); EncodableCollectionData ecd3 = new EncodableCollectionData(big); ByteArrayOutputStream baos0 = new ByteArrayOutputStream(); ByteArrayOutputStream baos = new ByteArrayOutputStream(); ByteArrayOutputStream baos2 = new ByteArrayOutputStream(); ByteArrayOutputStream baos3 = new ByteArrayOutputStream(); try { ecd0.save(baos0); Assert.assertFalse(baos0.toByteArray().length == 0); System.out.println("Saved empty Collection, length: " + baos0.toByteArray().length); ecd1.save(baos); ecd2.save(baos2); // will this save? currently not, should it? Assert.assertArrayEquals("Serializing two versions of same content should produce same output", baos.toByteArray(), baos2.toByteArray()); ecd3.save(baos3); boolean be = Arrays.areEqual(baos.toByteArray(), baos3.toByteArray()); Assert.assertFalse("Two different objects shouldn't have matching output.", be); System.out.println("Saved two collection datas, lengths " + baos.toByteArray().length + " and " + baos3.toByteArray().length); } catch (IOException e) { fail("IOException! " + e.getMessage()); } Log.info(Log.FAC_TEST, "Completed testSave"); } @Test public void testUpdate() { Log.info(Log.FAC_TEST, "Starting testUpdate"); boolean caught = false; EncodableCollectionData emptycoll = new EncodableCollectionData(); try { emptycoll.collection(); } catch (ContentNotReadyException iox) { // this is what we expect to happen caught = true; } catch (IOException ie) { Assert.fail("Unexpectd IOException!"); } Assert.assertTrue("Failed to produce expected exception.", caught); EncodableCollectionData ecd1 = new EncodableCollectionData(small1); EncodableCollectionData ecd2 = new EncodableCollectionData(); EncodableCollectionData ecd3 = new EncodableCollectionData(small2); ByteArrayOutputStream baos = new ByteArrayOutputStream(); ByteArrayOutputStream baos3 = new ByteArrayOutputStream(); try { ecd1.save(baos); ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray()); ecd2.update(bais); // will this save? currently not, should it? Assert.assertEquals("Writing content out and back in again should give matching object.", ecd1, ecd2); ecd3.save(baos3); boolean be = Arrays.areEqual(baos.toByteArray(), baos3.toByteArray()); Assert.assertFalse("Two different objects shouldn't have matching output.", be); System.out.println("Saved two collection datas, lengths " + baos.toByteArray().length + " and " + baos3.toByteArray().length); } catch (ContentDecodingException e) { fail("ContentDecodingException! " + e.getMessage()); } catch (IOException e) { fail("IOException! " + e.getMessage()); } Log.info(Log.FAC_TEST, "Completed testUpdate"); } }