/*
* 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.harmony.pack200.tests;
import java.io.ByteArrayInputStream;
import java.io.EOFException;
import java.io.IOException;
import junit.framework.TestCase;
import org.apache.harmony.pack200.BHSDCodec;
import org.apache.harmony.pack200.Codec;
import org.apache.harmony.pack200.CodecEncoding;
import org.apache.harmony.pack200.Pack200Exception;
/**
* Tests for BHSDCodec
*/
public class BHSDCodecTest extends TestCase {
public void testEncodeDecode() throws IOException, Pack200Exception {
for (int i = 1; i < 116; i++) {
BHSDCodec codec = (BHSDCodec) CodecEncoding.getCodec(i, null, null);
if (!codec.isDelta()) {
// Test encode-decode with a selection of numbers within the
// range of the codec
long largest = codec.largest();
long smallest = codec.isSigned() ? codec.smallest() : 0;
long difference = (largest - smallest) / 4;
for (long j = smallest; j <= largest; j += difference) {
byte[] encoded = codec.encode(j, 0);
long decoded = 0;
try {
decoded = codec.decode(
new ByteArrayInputStream(encoded), 0);
} catch (EOFException e) {
System.out.println(e);
}
if (j != decoded) {
fail("Failed with codec: " + i + ", " + codec
+ " expected: " + j + ", got: " + decoded);
}
}
}
// Test encode-decode with 0
assertEquals(0, codec.decode(new ByteArrayInputStream(codec.encode(
0, 0)), 0));
}
}
public void testDeltaEncodings() throws IOException, Pack200Exception {
Codec c = Codec.UDELTA5;
int[] sequence = new int[] {0, 2, 4, 2, 2, 4};
byte[] encoded = c.encode(sequence);
int[] decoded = c.decodeInts(6, new ByteArrayInputStream(encoded));
for (int i = 0; i < decoded.length; i++) {
assertEquals(sequence[i], decoded[i]);
}
}
}