public void runSeekTest(CompressionCodec codec) { TestInStream.OutputCollector collect = new TestInStream.OutputCollector(); const int COUNT = 16384; BitFieldWriter @out = new BitFieldWriter( new OutStream("test", 500, codec, collect), 1); TestInStream.PositionCollector[] positions = new TestInStream.PositionCollector[COUNT]; for (int i = 0; i < COUNT; ++i) { positions[i] = new TestInStream.PositionCollector(); @out.getPosition(positions[i]); // test runs, non-runs if (i < COUNT / 2) { @out.write(i & 1); } else { @out.write((i / 3) & 1); } } @out.flush(); ByteBuffer inBuf = ByteBuffer.allocate(collect.buffer.size()); collect.buffer.setByteBuffer(inBuf, 0, collect.buffer.size()); inBuf.flip(); #pragma warning disable 612 BitFieldReader @in = new BitFieldReader(InStream.create(null, "test", new ByteBuffer[] { inBuf }, new long[] { 0 }, inBuf.remaining(), codec, 500), 1); #pragma warning restore 612 for (int i = 0; i < COUNT; ++i) { int x = @in.next(); if (i < COUNT / 2) { Assert.Equal(i & 1, x); } else { Assert.Equal((i / 3) & 1, x); } } for (int i = COUNT - 1; i >= 0; --i) { @in.seek(positions[i]); int x = @in.next(); if (i < COUNT / 2) { Assert.Equal(i & 1, x); } else { Assert.Equal((i / 3) & 1, x); } } }
public void testSkips() { TestInStream.OutputCollector collect = new TestInStream.OutputCollector(); BitFieldWriter @out = new BitFieldWriter( new OutStream("test", 100, null, collect), 1); const int COUNT = 16384; for (int i = 0; i < COUNT; ++i) { if (i < COUNT / 2) { @out.write(i & 1); } else { @out.write((i / 3) & 1); } } @out.flush(); ByteBuffer inBuf = ByteBuffer.allocate(collect.buffer.size()); collect.buffer.setByteBuffer(inBuf, 0, collect.buffer.size()); inBuf.flip(); #pragma warning disable 612 BitFieldReader @in = new BitFieldReader(InStream.create (null, "test", new ByteBuffer[] { inBuf }, new long[] { 0 }, inBuf.remaining(), null, 100), 1); #pragma warning restore 612 for (int i = 0; i < COUNT; i += 5) { int x = (int)@in.next(); if (i < COUNT / 2) { Assert.Equal(i & 1, x); } else { Assert.Equal((i / 3) & 1, x); } if (i < COUNT - 5) { @in.skip(4); } @in.skip(0); } }
public void testBiggerItems() { TestInStream.OutputCollector collect = new TestInStream.OutputCollector(); const int COUNT = 16384; BitFieldWriter @out = new BitFieldWriter( new OutStream("test", 500, null, collect), 3); for (int i = 0; i < COUNT; ++i) { // test runs, non-runs if (i < COUNT / 2) { @out.write(i & 7); } else { @out.write((i / 3) & 7); } } @out.flush(); ByteBuffer inBuf = ByteBuffer.allocate(collect.buffer.size()); collect.buffer.setByteBuffer(inBuf, 0, collect.buffer.size()); inBuf.flip(); #pragma warning disable 612 BitFieldReader @in = new BitFieldReader(InStream.create(null, "test", new ByteBuffer[] { inBuf }, new long[] { 0 }, inBuf.remaining(), null, 500), 3); #pragma warning restore 612 for (int i = 0; i < COUNT; ++i) { int x = @in.next(); if (i < COUNT / 2) { Assert.Equal(i & 7, x); } else { Assert.Equal((i / 3) & 7, x); } } }