mirror of
https://github.com/haraldk/TwelveMonkeys.git
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Harald Kuhr
211 lines
9.1 KiB
Java
211 lines
9.1 KiB
Java
/*
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* Copyright (c) 2013, Harald Kuhr
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* * Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package com.twelvemonkeys.io;
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import org.junit.Test;
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import java.io.ByteArrayInputStream;
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import java.io.IOException;
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import static org.junit.Assert.*;
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/**
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* LittleEndianDataInputStreamTest
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*
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* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
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* @author last modified by $Author: haraldk$
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* @version $Id: LittleEndianDataInputStreamTest.java,v 1.0 15.02.13 11:04 haraldk Exp$
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*/
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public class LittleEndianDataInputStreamTest {
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@Test
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public void testReadBoolean() throws IOException {
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LittleEndianDataInputStream data = new LittleEndianDataInputStream(new ByteArrayInputStream(new byte[] {0, 1, 0x7f, (byte) 0xff}));
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assertFalse(data.readBoolean());
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assertTrue(data.readBoolean());
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assertTrue(data.readBoolean());
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assertTrue(data.readBoolean());
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}
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@Test
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public void testReadByte() throws IOException {
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LittleEndianDataInputStream data = new LittleEndianDataInputStream(new ByteArrayInputStream(
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new byte[] {
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(byte) 0x00, (byte) 0x00,
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(byte) 0x01, (byte) 0x00,
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(byte) 0xff, (byte) 0xff,
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(byte) 0x00, (byte) 0x80,
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(byte) 0xff, (byte) 0x7f,
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(byte) 0x00, (byte) 0x01,
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}
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));
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assertEquals(0, data.readByte());
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assertEquals(0, data.readByte());
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assertEquals(1, data.readByte());
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assertEquals(0, data.readByte());
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assertEquals(-1, data.readByte());
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assertEquals(-1, data.readByte());
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assertEquals(0, data.readByte());
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assertEquals(Byte.MIN_VALUE, data.readByte());
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assertEquals(-1, data.readByte());
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assertEquals(Byte.MAX_VALUE, data.readByte());
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assertEquals(0, data.readByte());
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assertEquals(1, data.readByte());
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}
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@Test
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public void testReadUnsignedByte() throws IOException {
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LittleEndianDataInputStream data = new LittleEndianDataInputStream(new ByteArrayInputStream(
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new byte[] {
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(byte) 0x00, (byte) 0x00,
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(byte) 0x01, (byte) 0x00,
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(byte) 0xff, (byte) 0xff,
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(byte) 0x00, (byte) 0x80,
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(byte) 0xff, (byte) 0x7f,
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(byte) 0x00, (byte) 0x01,
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}
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));
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assertEquals(0, data.readUnsignedByte());
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assertEquals(0, data.readUnsignedByte());
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assertEquals(1, data.readUnsignedByte());
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assertEquals(0, data.readUnsignedByte());
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assertEquals(255, data.readUnsignedByte());
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assertEquals(255, data.readUnsignedByte());
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assertEquals(0, data.readUnsignedByte());
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assertEquals(128, data.readUnsignedByte());
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assertEquals(255, data.readUnsignedByte());
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assertEquals(Byte.MAX_VALUE, data.readUnsignedByte());
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assertEquals(0, data.readUnsignedByte());
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assertEquals(1, data.readUnsignedByte());
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}
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@Test
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public void testReadShort() throws IOException {
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LittleEndianDataInputStream data = new LittleEndianDataInputStream(new ByteArrayInputStream(
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new byte[] {
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(byte) 0x00, (byte) 0x00,
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(byte) 0x01, (byte) 0x00,
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(byte) 0xff, (byte) 0xff,
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(byte) 0x00, (byte) 0x80,
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(byte) 0xff, (byte) 0x7f,
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(byte) 0x00, (byte) 0x01,
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}
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));
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assertEquals(0, data.readShort());
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assertEquals(1, data.readShort());
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assertEquals(-1, data.readShort());
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assertEquals(Short.MIN_VALUE, data.readShort());
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assertEquals(Short.MAX_VALUE, data.readShort());
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assertEquals(256, data.readShort());
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}
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@Test
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public void testReadUnsignedShort() throws IOException {
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LittleEndianDataInputStream data = new LittleEndianDataInputStream(new ByteArrayInputStream(
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new byte[] {
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(byte) 0x00, (byte) 0x00,
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(byte) 0x01, (byte) 0x00,
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(byte) 0xff, (byte) 0xff,
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(byte) 0x00, (byte) 0x80,
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(byte) 0xff, (byte) 0x7f,
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(byte) 0x00, (byte) 0x01,
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}
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));
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assertEquals(0, data.readUnsignedShort());
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assertEquals(1, data.readUnsignedShort());
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assertEquals(Short.MAX_VALUE * 2 + 1, data.readUnsignedShort());
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assertEquals(Short.MAX_VALUE + 1, data.readUnsignedShort());
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assertEquals(Short.MAX_VALUE, data.readUnsignedShort());
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assertEquals(256, data.readUnsignedShort());
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}
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@Test
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public void testReadInt() throws IOException {
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LittleEndianDataInputStream data = new LittleEndianDataInputStream(new ByteArrayInputStream(
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new byte[] {
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(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
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(byte) 0x01, (byte) 0x00, (byte) 0x00, (byte) 0x00,
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(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
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(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x80,
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(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0x7f,
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(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x01,
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(byte) 0xff, (byte) 0x00, (byte) 0xff, (byte) 0x00,
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(byte) 0x00, (byte) 0xff, (byte) 0x00, (byte) 0xff,
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(byte) 0xbe, (byte) 0xba, (byte) 0xfe, (byte) 0xca,
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(byte) 0xca, (byte) 0xfe, (byte) 0xd0, (byte) 0x0d,
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}
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));
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assertEquals(0, data.readInt());
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assertEquals(1, data.readInt());
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assertEquals(-1, data.readInt());
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assertEquals(Integer.MIN_VALUE, data.readInt());
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assertEquals(Integer.MAX_VALUE, data.readInt());
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assertEquals(16777216, data.readInt());
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assertEquals(0xff00ff, data.readInt());
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assertEquals(0xff00ff00, data.readInt());
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assertEquals(0xCafeBabe, data.readInt());
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assertEquals(0x0dd0feca, data.readInt());
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}
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@Test
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public void testReadLong() throws IOException {
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LittleEndianDataInputStream data = new LittleEndianDataInputStream(new ByteArrayInputStream(
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new byte[] {
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(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
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(byte) 0x01, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
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(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
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(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x80,
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(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0x7f,
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(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x01,
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(byte) 0x0d, (byte) 0xd0, (byte) 0xfe, (byte) 0xca, (byte) 0xbe, (byte) 0xba, (byte) 0xfe, (byte) 0xca,
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}
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));
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assertEquals(0, data.readLong());
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assertEquals(1, data.readLong());
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assertEquals(-1, data.readLong());
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assertEquals(Long.MIN_VALUE, data.readLong());
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assertEquals(Long.MAX_VALUE, data.readLong());
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assertEquals(72057594037927936L, data.readLong());
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assertEquals(0xCafeBabeL << 32 | 0xCafeD00dL, data.readLong());
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}
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}
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