/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.tika.io;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
import java.io.ByteArrayInputStream;
import org.junit.Test;
public class EndianUtilsTest {
@Test
public void testReadUE7() throws Exception {
byte[] data;
data = new byte[] { 0x08 };
assertEquals((long)8, EndianUtils.readUE7(new ByteArrayInputStream(data)));
data = new byte[] { (byte)0x84, 0x1e };
assertEquals((long)542, EndianUtils.readUE7(new ByteArrayInputStream(data)));
data = new byte[] { (byte)0xac, (byte)0xbe, 0x17 };
assertEquals((long)728855, EndianUtils.readUE7(new ByteArrayInputStream(data)));
}
@Test
public void testReadUIntLE() throws Exception {
byte[] data = new byte[] {(byte)0x08, (byte)0x00, (byte)0x00, (byte)0x00 };
assertEquals((long) 8, EndianUtils.readUIntLE(new ByteArrayInputStream(data)));
data = new byte[] {(byte)0xF0, (byte)0xFF, (byte)0xFF, (byte)0xFF };
assertEquals(4294967280L, EndianUtils.readUIntLE(new ByteArrayInputStream(data)));
data = new byte[] {(byte)0xFF, (byte)0xFF, (byte)0xFF };
try {
EndianUtils.readUIntLE(new ByteArrayInputStream(data));
fail("Should have thrown exception");
} catch (EndianUtils.BufferUnderrunException e) {
}
}
@Test
public void testReadUIntBE() throws Exception {
byte[] data = new byte[] {(byte)0x00, (byte)0x00, (byte)0x00, (byte)0x08 };
assertEquals((long) 8, EndianUtils.readUIntBE(new ByteArrayInputStream(data)));
data = new byte[] {(byte)0xFF, (byte)0xFF, (byte)0xFF, (byte)0xF0 };
assertEquals(4294967280L, EndianUtils.readUIntBE(new ByteArrayInputStream(data)));
data = new byte[] {(byte)0xFF, (byte)0xFF, (byte)0xFF };
try {
EndianUtils.readUIntLE(new ByteArrayInputStream(data));
fail("Should have thrown exception");
} catch (EndianUtils.BufferUnderrunException e) {
}
}
}