@Test public void testRead1SPP32BPS() throws IOException { // 1 sample per pixel, 32 bits per sample (gray) FastByteArrayOutputStream out = new FastByteArrayOutputStream(16); DataOutput dataOut = new DataOutputStream(out); dataOut.writeInt(0x00000000); dataOut.writeInt(305419896); dataOut.writeInt(305419896); dataOut.writeInt(-610839792); InputStream in = new HorizontalDeDifferencingStream(out.createInputStream(), 4, 1, 32, ByteOrder.BIG_ENDIAN); DataInput dataIn = new DataInputStream(in); // Row 1 assertEquals(0, dataIn.readInt()); assertEquals(305419896, dataIn.readInt()); assertEquals(610839792, dataIn.readInt()); assertEquals(0, dataIn.readInt()); // EOF assertEquals(-1, in.read()); }