org.syncany.tests.integration.operations.AssemblerTest.java Source code

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Here is the source code for org.syncany.tests.integration.operations.AssemblerTest.java

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/*
 * Syncany, www.syncany.org
 * Copyright (C) 2011-2015 Philipp C. Heckel <philipp.heckel@gmail.com> 
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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, see <http://www.gnu.org/licenses/>.
 */
package org.syncany.tests.integration.operations;

import static org.junit.Assert.*;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;

import org.apache.commons.io.FileUtils;
import org.junit.Test;
import org.syncany.chunk.Chunk;
import org.syncany.chunk.MultiChunk;
import org.syncany.plugins.local.LocalTransferSettings;
import org.syncany.tests.util.TestClient;
import org.syncany.tests.util.TestConfigUtil;

public class AssemblerTest {
    /**
     * Alters multichunk data to test whether integrity checks work.
     */
    @Test
    public void testAssembler() throws Exception {
        LocalTransferSettings testConnection = (LocalTransferSettings) TestConfigUtil.createTestLocalConnection();

        TestClient clientA = new TestClient("A", testConnection);
        TestClient clientB = new TestClient("B", testConnection);

        clientA.createNewFile("file1.jpg", 20); // small, only one chunk, one multichunk
        clientA.upWithForceChecksum();

        // Read chunk from original multichunk
        File repoMultiChunksFolder = new File(testConnection.getPath(), "multichunks");
        File multiChunkFile = repoMultiChunksFolder.listFiles()[0];

        MultiChunk multiChunk = clientA.getConfig().getMultiChunker().createMultiChunk(
                clientA.getConfig().getTransformer().createInputStream(new FileInputStream(multiChunkFile)));
        Chunk chunk = multiChunk.read();
        multiChunk.close();

        // Flip byte in chunk and write new "altered" multichunk
        File alteredMultiChunkFile = new File(multiChunkFile + "-altered");
        MultiChunk alteredMultiChunk = clientA.getConfig().getMultiChunker().createMultiChunk(multiChunk.getId(),
                clientA.getConfig().getTransformer()
                        .createOutputStream(new FileOutputStream(alteredMultiChunkFile)));

        chunk.getContent()[0] ^= 0x01; // Flip one byte!
        alteredMultiChunk.write(chunk);
        alteredMultiChunk.close();

        // Now delete old multichunk, and swap by "altered" file
        multiChunkFile.delete();
        FileUtils.moveFile(alteredMultiChunkFile, multiChunkFile);

        boolean exceptionThrown = false;

        try {
            clientB.down(); // If this does not throw an exception, it's bad!
        } catch (Exception e) {
            exceptionThrown = true;
        }

        assertTrue(exceptionThrown);

        clientA.deleteTestData();
        clientB.deleteTestData();
    }
}