Package com.esotericsoftware.kryo

Source Code of com.esotericsoftware.kryo.InputOutputTest

package com.esotericsoftware.kryo;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.Random;

import com.esotericsoftware.kryo.io.ByteBufferInputStream;
import com.esotericsoftware.kryo.io.ByteBufferOutputStream;
import com.esotericsoftware.kryo.io.Input;
import com.esotericsoftware.kryo.io.Output;

/** @author Nathan Sweet <misc@n4te.com> */
public class InputOutputTest extends KryoTestCase {
  public void testOutputStream () throws IOException {
    ByteArrayOutputStream buffer = new ByteArrayOutputStream();
    Output output = new Output(buffer, 2);
    output.writeBytes(new byte[] {11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26});
    output.writeBytes(new byte[] {31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46});
    output.writeBytes(new byte[] {51, 52, 53, 54, 55, 56, 57, 58});
    output.writeBytes(new byte[] {61, 62, 63, 64, 65});
    output.flush();

    assertEquals(new byte[] { //
      11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, //
        31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, //
        51, 52, 53, 54, 55, 56, 57, 58, //
        61, 62, 63, 64, 65}, buffer.toByteArray());
  }

  public void testInputStream () throws IOException {
    byte[] bytes = new byte[] { //
    11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, //
      31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, //
      51, 52, 53, 54, 55, 56, 57, 58, //
      61, 62, 63, 64, 65};
    ByteArrayInputStream buffer = new ByteArrayInputStream(bytes);
    Input input = new Input(buffer, 2);
    byte[] temp = new byte[1024];
    int count = input.read(temp, 512, bytes.length);
    assertEquals(bytes.length, count);
    byte[] temp2 = new byte[count];
    System.arraycopy(temp, 512, temp2, 0, count);
    assertEquals(bytes, temp2);

    input = new Input(bytes);
    count = input.read(temp, 512, 512);
    assertEquals(bytes.length, count);
    temp2 = new byte[count];
    System.arraycopy(temp, 512, temp2, 0, count);
    assertEquals(bytes, temp2);
  }

  public void testWriteBytes () throws IOException {
    Output buffer = new Output(512);
    buffer.writeBytes(new byte[] {11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26});
    buffer.writeBytes(new byte[] {31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46});
    buffer.writeByte(51);
    buffer.writeBytes(new byte[] {52, 53, 54, 55, 56, 57, 58});
    buffer.writeByte(61);
    buffer.writeByte(62);
    buffer.writeByte(63);
    buffer.writeByte(64);
    buffer.writeByte(65);
    buffer.flush();

    assertEquals(new byte[] { //
      11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, //
        31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, //
        51, 52, 53, 54, 55, 56, 57, 58, //
        61, 62, 63, 64, 65}, buffer.toBytes());
  }

  public void testStrings () throws IOException {
    runStringTest(new Output(4096));
    runStringTest(new Output(897));
    runStringTest(new Output(new ByteArrayOutputStream()));

    Output write = new Output(21);
    String value = "abcdef\u00E1\u00E9\u00ED\u00F3\u00FA\u1234";
    write.writeString(value);
    Input read = new Input(write.toBytes());
    assertEquals(value, read.readString());

    runStringTest(127);
    runStringTest(256);
    runStringTest(1024 * 1023);
    runStringTest(1024 * 1024);
    runStringTest(1024 * 1025);
    runStringTest(1024 * 1026);
    runStringTest(1024 * 1024 * 2);
  }

  public void runStringTest (int length) throws IOException {
    Output write = new Output(1024, -1);
    StringBuilder buffer = new StringBuilder();
    for (int i = 0; i < length; i++)
      buffer.append((char)i);

    String value = buffer.toString();
    write.writeString(value);
    write.writeString(value);
    Input read = new Input(write.toBytes());
    assertEquals(value, read.readString());
    assertEquals(value, read.readStringBuilder().toString());

    write.clear();
    write.writeString(buffer);
    write.writeString(buffer);
    read = new Input(write.toBytes());
    assertEquals(value, read.readStringBuilder().toString());
    assertEquals(value, read.readString());

    if (length <= 127) {
      write.clear();
      write.writeAscii(value);
      write.writeAscii(value);
      read = new Input(write.toBytes());
      assertEquals(value, read.readStringBuilder().toString());
      assertEquals(value, read.readString());
    }
  }

  public void runStringTest (Output write) throws IOException {
    String value1 = "ABCDEFGHIJKLMNOPQRSTUVWXYZ\rabcdefghijklmnopqrstuvwxyz\n1234567890\t\"!`?'.,;:()[]{}<>|/@\\^$-%+=#_&~*";
    String value2 = "abcdef\u00E1\u00E9\u00ED\u00F3\u00FA\u1234";

    write.writeString("");
    write.writeString("1");
    write.writeString("22");
    write.writeString("uno");
    write.writeString("dos");
    write.writeString("tres");
    write.writeString(null);
    write.writeString(value1);
    write.writeString(value2);
    for (int i = 0; i < 127; i++)
      write.writeString(String.valueOf((char)i));
    for (int i = 0; i < 127; i++)
      write.writeString(String.valueOf((char)i) + "abc");

    Input read = new Input(write.toBytes());
    assertEquals("", read.readString());
    assertEquals("1", read.readString());
    assertEquals("22", read.readString());
    assertEquals("uno", read.readString());
    assertEquals("dos", read.readString());
    assertEquals("tres", read.readString());
    assertEquals(null, read.readString());
    assertEquals(value1, read.readString());
    assertEquals(value2, read.readString());
    for (int i = 0; i < 127; i++)
      assertEquals(String.valueOf((char)i), read.readString());
    for (int i = 0; i < 127; i++)
      assertEquals(String.valueOf((char)i) + "abc", read.readString());

    read.rewind();
    assertEquals("", read.readStringBuilder().toString());
    assertEquals("1", read.readStringBuilder().toString());
    assertEquals("22", read.readStringBuilder().toString());
    assertEquals("uno", read.readStringBuilder().toString());
    assertEquals("dos", read.readStringBuilder().toString());
    assertEquals("tres", read.readStringBuilder().toString());
    assertEquals(null, read.readStringBuilder());
    assertEquals(value1, read.readStringBuilder().toString());
    assertEquals(value2, read.readStringBuilder().toString());
    for (int i = 0; i < 127; i++)
      assertEquals(String.valueOf((char)i), read.readStringBuilder().toString());
    for (int i = 0; i < 127; i++)
      assertEquals(String.valueOf((char)i) + "abc", read.readStringBuilder().toString());
  }

  public void testCanReadInt () throws IOException {
    Output write = new Output(new ByteArrayOutputStream());

    Input read = new Input(write.toBytes());
    assertEquals(false, read.canReadInt());

    write.writeInt(400, true);

    read = new Input(write.toBytes());
    assertEquals(true, read.canReadInt());
    read.setLimit(read.limit() - 1);
    assertEquals(false, read.canReadInt());
  }

  public void testInts () throws IOException {
    runIntTest(new Output(4096));
    runIntTest(new Output(new ByteArrayOutputStream()));
  }

  private void runIntTest (Output write) throws IOException {
    write.writeInt(0);
    write.writeInt(63);
    write.writeInt(64);
    write.writeInt(127);
    write.writeInt(128);
    write.writeInt(8192);
    write.writeInt(16384);
    write.writeInt(2097151);
    write.writeInt(1048575);
    write.writeInt(134217727);
    write.writeInt(268435455);
    write.writeInt(134217728);
    write.writeInt(268435456);
    write.writeInt(-2097151);
    write.writeInt(-1048575);
    write.writeInt(-134217727);
    write.writeInt(-268435455);
    write.writeInt(-134217728);
    write.writeInt(-268435456);
    assertEquals(1, write.writeInt(0, true));
    assertEquals(1, write.writeInt(0, false));
    assertEquals(1, write.writeInt(63, true));
    assertEquals(1, write.writeInt(63, false));
    assertEquals(1, write.writeInt(64, true));
    assertEquals(2, write.writeInt(64, false));
    assertEquals(1, write.writeInt(127, true));
    assertEquals(2, write.writeInt(127, false));
    assertEquals(2, write.writeInt(128, true));
    assertEquals(2, write.writeInt(128, false));
    assertEquals(2, write.writeInt(8191, true));
    assertEquals(2, write.writeInt(8191, false));
    assertEquals(2, write.writeInt(8192, true));
    assertEquals(3, write.writeInt(8192, false));
    assertEquals(2, write.writeInt(16383, true));
    assertEquals(3, write.writeInt(16383, false));
    assertEquals(3, write.writeInt(16384, true));
    assertEquals(3, write.writeInt(16384, false));
    assertEquals(3, write.writeInt(2097151, true));
    assertEquals(4, write.writeInt(2097151, false));
    assertEquals(3, write.writeInt(1048575, true));
    assertEquals(3, write.writeInt(1048575, false));
    assertEquals(4, write.writeInt(134217727, true));
    assertEquals(4, write.writeInt(134217727, false));
    assertEquals(4, write.writeInt(268435455, true));
    assertEquals(5, write.writeInt(268435455, false));
    assertEquals(4, write.writeInt(134217728, true));
    assertEquals(5, write.writeInt(134217728, false));
    assertEquals(5, write.writeInt(268435456, true));
    assertEquals(5, write.writeInt(268435456, false));
    assertEquals(1, write.writeInt(-64, false));
    assertEquals(5, write.writeInt(-64, true));
    assertEquals(2, write.writeInt(-65, false));
    assertEquals(5, write.writeInt(-65, true));
    assertEquals(2, write.writeInt(-8192, false));
    assertEquals(5, write.writeInt(-8192, true));
    assertEquals(3, write.writeInt(-1048576, false));
    assertEquals(5, write.writeInt(-1048576, true));
    assertEquals(4, write.writeInt(-134217728, false));
    assertEquals(5, write.writeInt(-134217728, true));
    assertEquals(5, write.writeInt(-134217729, false));
    assertEquals(5, write.writeInt(-134217729, true));

    Input read = new Input(write.toBytes());
    assertEquals(0, read.readInt());
    assertEquals(63, read.readInt());
    assertEquals(64, read.readInt());
    assertEquals(127, read.readInt());
    assertEquals(128, read.readInt());
    assertEquals(8192, read.readInt());
    assertEquals(16384, read.readInt());
    assertEquals(2097151, read.readInt());
    assertEquals(1048575, read.readInt());
    assertEquals(134217727, read.readInt());
    assertEquals(268435455, read.readInt());
    assertEquals(134217728, read.readInt());
    assertEquals(268435456, read.readInt());
    assertEquals(-2097151, read.readInt());
    assertEquals(-1048575, read.readInt());
    assertEquals(-134217727, read.readInt());
    assertEquals(-268435455, read.readInt());
    assertEquals(-134217728, read.readInt());
    assertEquals(-268435456, read.readInt());
    assertEquals(true, read.canReadInt());
    assertEquals(true, read.canReadInt());
    assertEquals(true, read.canReadInt());
    assertEquals(0, read.readInt(true));
    assertEquals(0, read.readInt(false));
    assertEquals(63, read.readInt(true));
    assertEquals(63, read.readInt(false));
    assertEquals(64, read.readInt(true));
    assertEquals(64, read.readInt(false));
    assertEquals(127, read.readInt(true));
    assertEquals(127, read.readInt(false));
    assertEquals(128, read.readInt(true));
    assertEquals(128, read.readInt(false));
    assertEquals(8191, read.readInt(true));
    assertEquals(8191, read.readInt(false));
    assertEquals(8192, read.readInt(true));
    assertEquals(8192, read.readInt(false));
    assertEquals(16383, read.readInt(true));
    assertEquals(16383, read.readInt(false));
    assertEquals(16384, read.readInt(true));
    assertEquals(16384, read.readInt(false));
    assertEquals(2097151, read.readInt(true));
    assertEquals(2097151, read.readInt(false));
    assertEquals(1048575, read.readInt(true));
    assertEquals(1048575, read.readInt(false));
    assertEquals(134217727, read.readInt(true));
    assertEquals(134217727, read.readInt(false));
    assertEquals(268435455, read.readInt(true));
    assertEquals(268435455, read.readInt(false));
    assertEquals(134217728, read.readInt(true));
    assertEquals(134217728, read.readInt(false));
    assertEquals(268435456, read.readInt(true));
    assertEquals(268435456, read.readInt(false));
    assertEquals(-64, read.readInt(false));
    assertEquals(-64, read.readInt(true));
    assertEquals(-65, read.readInt(false));
    assertEquals(-65, read.readInt(true));
    assertEquals(-8192, read.readInt(false));
    assertEquals(-8192, read.readInt(true));
    assertEquals(-1048576, read.readInt(false));
    assertEquals(-1048576, read.readInt(true));
    assertEquals(-134217728, read.readInt(false));
    assertEquals(-134217728, read.readInt(true));
    assertEquals(-134217729, read.readInt(false));
    assertEquals(-134217729, read.readInt(true));
    assertEquals(false, read.canReadInt());

    Random random = new Random();
    for (int i = 0; i < 10000; i++) {
      int value = random.nextInt();
      write.clear();
      write.writeInt(value);
      write.writeInt(value, true);
      write.writeInt(value, false);
      read.setBuffer(write.toBytes());
      assertEquals(value, read.readInt());
      assertEquals(value, read.readInt(true));
      assertEquals(value, read.readInt(false));
    }
  }

  public void testLongs () throws IOException {
    runLongTest(new Output(4096));
    runLongTest(new Output(new ByteArrayOutputStream()));
  }

  private void runLongTest (Output write) throws IOException {
    write.writeLong(0);
    write.writeLong(63);
    write.writeLong(64);
    write.writeLong(127);
    write.writeLong(128);
    write.writeLong(8192);
    write.writeLong(16384);
    write.writeLong(2097151);
    write.writeLong(1048575);
    write.writeLong(134217727);
    write.writeLong(268435455);
    write.writeLong(134217728);
    write.writeLong(268435456);
    write.writeLong(-2097151);
    write.writeLong(-1048575);
    write.writeLong(-134217727);
    write.writeLong(-268435455);
    write.writeLong(-134217728);
    write.writeLong(-268435456);
    assertEquals(1, write.writeLong(0, true));
    assertEquals(1, write.writeLong(0, false));
    assertEquals(1, write.writeLong(63, true));
    assertEquals(1, write.writeLong(63, false));
    assertEquals(1, write.writeLong(64, true));
    assertEquals(2, write.writeLong(64, false));
    assertEquals(1, write.writeLong(127, true));
    assertEquals(2, write.writeLong(127, false));
    assertEquals(2, write.writeLong(128, true));
    assertEquals(2, write.writeLong(128, false));
    assertEquals(2, write.writeLong(8191, true));
    assertEquals(2, write.writeLong(8191, false));
    assertEquals(2, write.writeLong(8192, true));
    assertEquals(3, write.writeLong(8192, false));
    assertEquals(2, write.writeLong(16383, true));
    assertEquals(3, write.writeLong(16383, false));
    assertEquals(3, write.writeLong(16384, true));
    assertEquals(3, write.writeLong(16384, false));
    assertEquals(3, write.writeLong(2097151, true));
    assertEquals(4, write.writeLong(2097151, false));
    assertEquals(3, write.writeLong(1048575, true));
    assertEquals(3, write.writeLong(1048575, false));
    assertEquals(4, write.writeLong(134217727, true));
    assertEquals(4, write.writeLong(134217727, false));
    assertEquals(4, write.writeLong(268435455l, true));
    assertEquals(5, write.writeLong(268435455l, false));
    assertEquals(4, write.writeLong(134217728l, true));
    assertEquals(5, write.writeLong(134217728l, false));
    assertEquals(5, write.writeLong(268435456l, true));
    assertEquals(5, write.writeLong(268435456l, false));
    assertEquals(1, write.writeLong(-64, false));
    assertEquals(9, write.writeLong(-64, true));
    assertEquals(2, write.writeLong(-65, false));
    assertEquals(9, write.writeLong(-65, true));
    assertEquals(2, write.writeLong(-8192, false));
    assertEquals(9, write.writeLong(-8192, true));
    assertEquals(3, write.writeLong(-1048576, false));
    assertEquals(9, write.writeLong(-1048576, true));
    assertEquals(4, write.writeLong(-134217728, false));
    assertEquals(9, write.writeLong(-134217728, true));
    assertEquals(5, write.writeLong(-134217729, false));
    assertEquals(9, write.writeLong(-134217729, true));

    Input read = new Input(write.toBytes());
    assertEquals(0, read.readLong());
    assertEquals(63, read.readLong());
    assertEquals(64, read.readLong());
    assertEquals(127, read.readLong());
    assertEquals(128, read.readLong());
    assertEquals(8192, read.readLong());
    assertEquals(16384, read.readLong());
    assertEquals(2097151, read.readLong());
    assertEquals(1048575, read.readLong());
    assertEquals(134217727, read.readLong());
    assertEquals(268435455, read.readLong());
    assertEquals(134217728, read.readLong());
    assertEquals(268435456, read.readLong());
    assertEquals(-2097151, read.readLong());
    assertEquals(-1048575, read.readLong());
    assertEquals(-134217727, read.readLong());
    assertEquals(-268435455, read.readLong());
    assertEquals(-134217728, read.readLong());
    assertEquals(-268435456, read.readLong());
    assertEquals(0, read.readLong(true));
    assertEquals(0, read.readLong(false));
    assertEquals(63, read.readLong(true));
    assertEquals(63, read.readLong(false));
    assertEquals(64, read.readLong(true));
    assertEquals(64, read.readLong(false));
    assertEquals(127, read.readLong(true));
    assertEquals(127, read.readLong(false));
    assertEquals(128, read.readLong(true));
    assertEquals(128, read.readLong(false));
    assertEquals(8191, read.readLong(true));
    assertEquals(8191, read.readLong(false));
    assertEquals(8192, read.readLong(true));
    assertEquals(8192, read.readLong(false));
    assertEquals(16383, read.readLong(true));
    assertEquals(16383, read.readLong(false));
    assertEquals(16384, read.readLong(true));
    assertEquals(16384, read.readLong(false));
    assertEquals(2097151, read.readLong(true));
    assertEquals(2097151, read.readLong(false));
    assertEquals(1048575, read.readLong(true));
    assertEquals(1048575, read.readLong(false));
    assertEquals(134217727, read.readLong(true));
    assertEquals(134217727, read.readLong(false));
    assertEquals(268435455, read.readLong(true));
    assertEquals(268435455, read.readLong(false));
    assertEquals(134217728, read.readLong(true));
    assertEquals(134217728, read.readLong(false));
    assertEquals(268435456, read.readLong(true));
    assertEquals(268435456, read.readLong(false));
    assertEquals(-64, read.readLong(false));
    assertEquals(-64, read.readLong(true));
    assertEquals(-65, read.readLong(false));
    assertEquals(-65, read.readLong(true));
    assertEquals(-8192, read.readLong(false));
    assertEquals(-8192, read.readLong(true));
    assertEquals(-1048576, read.readLong(false));
    assertEquals(-1048576, read.readLong(true));
    assertEquals(-134217728, read.readLong(false));
    assertEquals(-134217728, read.readLong(true));
    assertEquals(-134217729, read.readLong(false));
    assertEquals(-134217729, read.readLong(true));

    Random random = new Random();
    for (int i = 0; i < 10000; i++) {
      long value = random.nextLong();
      write.clear();
      write.writeLong(value);
      write.writeLong(value, true);
      write.writeLong(value, false);
      read.setBuffer(write.toBytes());
      assertEquals(value, read.readLong());
      assertEquals(value, read.readLong(true));
      assertEquals(value, read.readLong(false));
    }
  }

  public void testShorts () throws IOException {
    runShortTest(new Output(4096));
    runShortTest(new Output(new ByteArrayOutputStream()));
  }

  private void runShortTest (Output write) throws IOException {
    write.writeShort(0);
    write.writeShort(63);
    write.writeShort(64);
    write.writeShort(127);
    write.writeShort(128);
    write.writeShort(8192);
    write.writeShort(16384);
    write.writeShort(32767);
    write.writeShort(-63);
    write.writeShort(-64);
    write.writeShort(-127);
    write.writeShort(-128);
    write.writeShort(-8192);
    write.writeShort(-16384);
    write.writeShort(-32768);

    Input read = new Input(write.toBytes());
    assertEquals(0, read.readShort());
    assertEquals(63, read.readShort());
    assertEquals(64, read.readShort());
    assertEquals(127, read.readShort());
    assertEquals(128, read.readShort());
    assertEquals(8192, read.readShort());
    assertEquals(16384, read.readShort());
    assertEquals(32767, read.readShort());
    assertEquals(-63, read.readShort());
    assertEquals(-64, read.readShort());
    assertEquals(-127, read.readShort());
    assertEquals(-128, read.readShort());
    assertEquals(-8192, read.readShort());
    assertEquals(-16384, read.readShort());
    assertEquals(-32768, read.readShort());
  }

  public void testFloats () throws IOException {
    runFloatTest(new Output(4096));
    runFloatTest(new Output(new ByteArrayOutputStream()));
  }

  private void runFloatTest (Output write) throws IOException {
    write.writeFloat(0);
    write.writeFloat(63);
    write.writeFloat(64);
    write.writeFloat(127);
    write.writeFloat(128);
    write.writeFloat(8192);
    write.writeFloat(16384);
    write.writeFloat(32767);
    write.writeFloat(-63);
    write.writeFloat(-64);
    write.writeFloat(-127);
    write.writeFloat(-128);
    write.writeFloat(-8192);
    write.writeFloat(-16384);
    write.writeFloat(-32768);
    assertEquals(1, write.writeFloat(0, 1000, true));
    assertEquals(1, write.writeFloat(0, 1000, false));
    assertEquals(3, write.writeFloat(63, 1000, true));
    assertEquals(3, write.writeFloat(63, 1000, false));
    assertEquals(3, write.writeFloat(64, 1000, true));
    assertEquals(3, write.writeFloat(64, 1000, false));
    assertEquals(3, write.writeFloat(127, 1000, true));
    assertEquals(3, write.writeFloat(127, 1000, false));
    assertEquals(3, write.writeFloat(128, 1000, true));
    assertEquals(3, write.writeFloat(128, 1000, false));
    assertEquals(4, write.writeFloat(8191, 1000, true));
    assertEquals(4, write.writeFloat(8191, 1000, false));
    assertEquals(4, write.writeFloat(8192, 1000, true));
    assertEquals(4, write.writeFloat(8192, 1000, false));
    assertEquals(4, write.writeFloat(16383, 1000, true));
    assertEquals(4, write.writeFloat(16383, 1000, false));
    assertEquals(4, write.writeFloat(16384, 1000, true));
    assertEquals(4, write.writeFloat(16384, 1000, false));
    assertEquals(4, write.writeFloat(32767, 1000, true));
    assertEquals(4, write.writeFloat(32767, 1000, false));
    assertEquals(3, write.writeFloat(-64, 1000, false));
    assertEquals(5, write.writeFloat(-64, 1000, true));
    assertEquals(3, write.writeFloat(-65, 1000, false));
    assertEquals(5, write.writeFloat(-65, 1000, true));
    assertEquals(4, write.writeFloat(-8192, 1000, false));
    assertEquals(5, write.writeFloat(-8192, 1000, true));

    Input read = new Input(write.toBytes());
    assertEquals(read.readFloat(), 0f);
    assertEquals(read.readFloat(), 63f);
    assertEquals(read.readFloat(), 64f);
    assertEquals(read.readFloat(), 127f);
    assertEquals(read.readFloat(), 128f);
    assertEquals(read.readFloat(), 8192f);
    assertEquals(read.readFloat(), 16384f);
    assertEquals(read.readFloat(), 32767f);
    assertEquals(read.readFloat(), -63f);
    assertEquals(read.readFloat(), -64f);
    assertEquals(read.readFloat(), -127f);
    assertEquals(read.readFloat(), -128f);
    assertEquals(read.readFloat(), -8192f);
    assertEquals(read.readFloat(), -16384f);
    assertEquals(read.readFloat(), -32768f);
    assertEquals(read.readFloat(1000, true), 0f);
    assertEquals(read.readFloat(1000, false), 0f);
    assertEquals(read.readFloat(1000, true), 63f);
    assertEquals(read.readFloat(1000, false), 63f);
    assertEquals(read.readFloat(1000, true), 64f);
    assertEquals(read.readFloat(1000, false), 64f);
    assertEquals(read.readFloat(1000, true), 127f);
    assertEquals(read.readFloat(1000, false), 127f);
    assertEquals(read.readFloat(1000, true), 128f);
    assertEquals(read.readFloat(1000, false), 128f);
    assertEquals(read.readFloat(1000, true), 8191f);
    assertEquals(read.readFloat(1000, false), 8191f);
    assertEquals(read.readFloat(1000, true), 8192f);
    assertEquals(read.readFloat(1000, false), 8192f);
    assertEquals(read.readFloat(1000, true), 16383f);
    assertEquals(read.readFloat(1000, false), 16383f);
    assertEquals(read.readFloat(1000, true), 16384f);
    assertEquals(read.readFloat(1000, false), 16384f);
    assertEquals(read.readFloat(1000, true), 32767f);
    assertEquals(read.readFloat(1000, false), 32767f);
    assertEquals(read.readFloat(1000, false), -64f);
    assertEquals(read.readFloat(1000, true), -64f);
    assertEquals(read.readFloat(1000, false), -65f);
    assertEquals(read.readFloat(1000, true), -65f);
    assertEquals(read.readFloat(1000, false), -8192f);
    assertEquals(read.readFloat(1000, true), -8192f);
  }

  public void testDoubles () throws IOException {
    runDoubleTest(new Output(4096));
    runDoubleTest(new Output(new ByteArrayOutputStream()));
  }

  private void runDoubleTest (Output write) throws IOException {
    write.writeDouble(0);
    write.writeDouble(63);
    write.writeDouble(64);
    write.writeDouble(127);
    write.writeDouble(128);
    write.writeDouble(8192);
    write.writeDouble(16384);
    write.writeDouble(32767);
    write.writeDouble(-63);
    write.writeDouble(-64);
    write.writeDouble(-127);
    write.writeDouble(-128);
    write.writeDouble(-8192);
    write.writeDouble(-16384);
    write.writeDouble(-32768);
    assertEquals(1, write.writeDouble(0, 1000, true));
    assertEquals(1, write.writeDouble(0, 1000, false));
    assertEquals(3, write.writeDouble(63, 1000, true));
    assertEquals(3, write.writeDouble(63, 1000, false));
    assertEquals(3, write.writeDouble(64, 1000, true));
    assertEquals(3, write.writeDouble(64, 1000, false));
    assertEquals(3, write.writeDouble(127, 1000, true));
    assertEquals(3, write.writeDouble(127, 1000, false));
    assertEquals(3, write.writeDouble(128, 1000, true));
    assertEquals(3, write.writeDouble(128, 1000, false));
    assertEquals(4, write.writeDouble(8191, 1000, true));
    assertEquals(4, write.writeDouble(8191, 1000, false));
    assertEquals(4, write.writeDouble(8192, 1000, true));
    assertEquals(4, write.writeDouble(8192, 1000, false));
    assertEquals(4, write.writeDouble(16383, 1000, true));
    assertEquals(4, write.writeDouble(16383, 1000, false));
    assertEquals(4, write.writeDouble(16384, 1000, true));
    assertEquals(4, write.writeDouble(16384, 1000, false));
    assertEquals(4, write.writeDouble(32767, 1000, true));
    assertEquals(4, write.writeDouble(32767, 1000, false));
    assertEquals(3, write.writeDouble(-64, 1000, false));
    assertEquals(9, write.writeDouble(-64, 1000, true));
    assertEquals(3, write.writeDouble(-65, 1000, false));
    assertEquals(9, write.writeDouble(-65, 1000, true));
    assertEquals(4, write.writeDouble(-8192, 1000, false));
    assertEquals(9, write.writeDouble(-8192, 1000, true));
    write.writeDouble(1.23456d);

    Input read = new Input(write.toBytes());
    assertEquals(read.readDouble(), 0d);
    assertEquals(read.readDouble(), 63d);
    assertEquals(read.readDouble(), 64d);
    assertEquals(read.readDouble(), 127d);
    assertEquals(read.readDouble(), 128d);
    assertEquals(read.readDouble(), 8192d);
    assertEquals(read.readDouble(), 16384d);
    assertEquals(read.readDouble(), 32767d);
    assertEquals(read.readDouble(), -63d);
    assertEquals(read.readDouble(), -64d);
    assertEquals(read.readDouble(), -127d);
    assertEquals(read.readDouble(), -128d);
    assertEquals(read.readDouble(), -8192d);
    assertEquals(read.readDouble(), -16384d);
    assertEquals(read.readDouble(), -32768d);
    assertEquals(read.readDouble(1000, true), 0d);
    assertEquals(read.readDouble(1000, false), 0d);
    assertEquals(read.readDouble(1000, true), 63d);
    assertEquals(read.readDouble(1000, false), 63d);
    assertEquals(read.readDouble(1000, true), 64d);
    assertEquals(read.readDouble(1000, false), 64d);
    assertEquals(read.readDouble(1000, true), 127d);
    assertEquals(read.readDouble(1000, false), 127d);
    assertEquals(read.readDouble(1000, true), 128d);
    assertEquals(read.readDouble(1000, false), 128d);
    assertEquals(read.readDouble(1000, true), 8191d);
    assertEquals(read.readDouble(1000, false), 8191d);
    assertEquals(read.readDouble(1000, true), 8192d);
    assertEquals(read.readDouble(1000, false), 8192d);
    assertEquals(read.readDouble(1000, true), 16383d);
    assertEquals(read.readDouble(1000, false), 16383d);
    assertEquals(read.readDouble(1000, true), 16384d);
    assertEquals(read.readDouble(1000, false), 16384d);
    assertEquals(read.readDouble(1000, true), 32767d);
    assertEquals(read.readDouble(1000, false), 32767d);
    assertEquals(read.readDouble(1000, false), -64d);
    assertEquals(read.readDouble(1000, true), -64d);
    assertEquals(read.readDouble(1000, false), -65d);
    assertEquals(read.readDouble(1000, true), -65d);
    assertEquals(read.readDouble(1000, false), -8192d);
    assertEquals(read.readDouble(1000, true), -8192d);
    assertEquals(1.23456d, read.readDouble());
  }

  public void testBooleans () throws IOException {
    runBooleanTest(new Output(4096));
    runBooleanTest(new Output(new ByteArrayOutputStream()));
  }

  private void runBooleanTest (Output write) throws IOException {
    for (int i = 0; i < 100; i++) {
      write.writeBoolean(true);
      write.writeBoolean(false);
    }

    Input read = new Input(write.toBytes());
    for (int i = 0; i < 100; i++) {
      assertEquals(true, read.readBoolean());
      assertEquals(false, read.readBoolean());
    }
  }

  public void testChars () throws IOException {
    runCharTest(new Output(4096));
    runCharTest(new Output(new ByteArrayOutputStream()));
  }

  private void runCharTest (Output write) throws IOException {
    write.writeChar((char)0);
    write.writeChar((char)63);
    write.writeChar((char)64);
    write.writeChar((char)127);
    write.writeChar((char)128);
    write.writeChar((char)8192);
    write.writeChar((char)16384);
    write.writeChar((char)32767);
    write.writeChar((char)65535);

    Input read = new Input(write.toBytes());
    assertEquals(0, read.readChar());
    assertEquals(63, read.readChar());
    assertEquals(64, read.readChar());
    assertEquals(127, read.readChar());
    assertEquals(128, read.readChar());
    assertEquals(8192, read.readChar());
    assertEquals(16384, read.readChar());
    assertEquals(32767, read.readChar());
    assertEquals(65535, read.readChar());
  }

  public void testInputWithOffset () throws Exception {
    final byte[] buf = new byte[30];
    final Input in = new Input(buf, 10, 10);
    assertEquals(10, in.available());
  }
 
  public void testSmallBuffers() throws Exception {
    ByteBuffer buf = ByteBuffer.allocate(1024);
    ByteBufferOutputStream byteBufferOutputStream = new ByteBufferOutputStream(buf);
    Output testOutput = new Output(byteBufferOutputStream);
    testOutput.writeBytes(new byte[512]);
    testOutput.writeBytes(new byte[512]);
    testOutput.flush();

    ByteBufferInputStream testInputs = new ByteBufferInputStream();
    buf.flip();
    testInputs.setByteBuffer(buf);
    Input input = new Input(testInputs, 512);
    byte[] toRead = new byte[512];
    input.readBytes(toRead);

    input.readBytes(toRead);   
  }
}
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