コード例 #1
0
 public void runSeekTest(CompressionCodec codec)
 {
     TestInStream.OutputCollector collect = new TestInStream.OutputCollector();
     RunLengthIntegerWriter @out = new RunLengthIntegerWriter(
         new OutStream("test", 1000, codec, collect), true);
     TestInStream.PositionCollector[] positions =
         new TestInStream.PositionCollector[4096];
     Random random = new Random(99);
     int[] junk = new int[2048];
     for (int i = 0; i < junk.Length; ++i)
     {
         junk[i] = random.Next();
     }
     for (int i = 0; i < 4096; ++i)
     {
         positions[i] = new TestInStream.PositionCollector();
         @out.getPosition(positions[i]);
         // test runs, incrementing runs, non-runs
         if (i < 1024)
         {
             @out.write(i / 4);
         }
         else if (i < 2048)
         {
             @out.write(2 * i);
         }
         else
         {
             @out.write(junk[i - 2048]);
         }
     }
     @out.flush();
     ByteBuffer inBuf = ByteBuffer.allocate(collect.buffer.size());
     collect.buffer.setByteBuffer(inBuf, 0, collect.buffer.size());
     inBuf.flip();
     #pragma warning disable 612
     RunLengthIntegerReader @in = new RunLengthIntegerReader(InStream.create
         (null, "test", new ByteBuffer[] { inBuf }, new long[] { 0 }, inBuf.remaining(),
             codec, 1000), true);
     #pragma warning restore 612
     for (int i = 0; i < 2048; ++i)
     {
         int x = (int)@in.next();
         if (i < 1024)
         {
             Assert.Equal(i / 4, x);
         }
         else if (i < 2048)
         {
             Assert.Equal(2 * i, x);
         }
         else
         {
             Assert.Equal(junk[i - 2048], x);
         }
     }
     for (int i = 2047; i >= 0; --i)
     {
         @in.seek(positions[i]);
         int x = (int)@in.next();
         if (i < 1024)
         {
             Assert.Equal(i / 4, x);
         }
         else if (i < 2048)
         {
             Assert.Equal(2 * i, x);
         }
         else
         {
             Assert.Equal(junk[i - 2048], x);
         }
     }
 }
コード例 #2
0
 public void testSkips()
 {
     TestInStream.OutputCollector collect = new TestInStream.OutputCollector();
     RunLengthIntegerWriter @out = new RunLengthIntegerWriter(
         new OutStream("test", 100, null, collect), true);
     for (int i = 0; i < 2048; ++i)
     {
         if (i < 1024)
         {
             @out.write(i);
         }
         else
         {
             @out.write(256 * i);
         }
     }
     @out.flush();
     ByteBuffer inBuf = ByteBuffer.allocate(collect.buffer.size());
     collect.buffer.setByteBuffer(inBuf, 0, collect.buffer.size());
     inBuf.flip();
     #pragma warning disable 612
     RunLengthIntegerReader @in = new RunLengthIntegerReader(InStream.create
         (null, "test", new ByteBuffer[] { inBuf }, new long[] { 0 }, inBuf.remaining(),
             null, 100), true);
     #pragma warning restore 612
     for (int i = 0; i < 2048; i += 10)
     {
         int x = (int)@in.next();
         if (i < 1024)
         {
             Assert.Equal(i, x);
         }
         else
         {
             Assert.Equal(256 * i, x);
         }
         if (i < 2038)
         {
             @in.skip(9);
         }
         @in.skip(0);
     }
 }