Fix MemoryFile's output stream to advance.

        @Override

        public void write(byte buffer[], int offset, int count) throws IOException {

            writeBytes(buffer, offset, mOffset, count);

            mOffset += count;

        }

        @Override

import android.test.suitebuilder.annotation.LargeTest;

import android.test.suitebuilder.annotation.SmallTest;

import java.io.File;

import java.io.FileDescriptor;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.List;

public class MemoryFileTest extends AndroidTestCase {

        file.close();

    }

    // http://code.google.com/p/android/issues/detail?id=11415

    public void testOutputStreamAdvances() throws IOException {

        MemoryFile file = new MemoryFile("MemoryFileTest", 10);

        OutputStream os = file.getOutputStream();

        os.write(new byte[] { 1, 2, 3, 4, 5 });

        os.write(new byte[] { -1, -1, 6, 7, 8, -1 }, 2, 3);

        os.write(9);

        try {

            os.write(new byte[] { -1, -1 });

            fail();

        } catch (IndexOutOfBoundsException expected) {

        }

        byte[] copy = new byte[file.length()];

        file.readBytes(copy, 0, 0, file.length());

        assertEquals("[1, 2, 3, 4, 5, 6, 7, 8, 9, 0]", Arrays.toString(copy));

    }

    // Tests for the IndexOutOfBoundsException cases in read().

    private void readIndexOutOfBoundsException(int offset, int count, String msg)