diff -r 6d84419a893a -r 6d340c7b6a32 jdk/test/java/util/zip/DeInflate.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/jdk/test/java/util/zip/DeInflate.java Tue Nov 29 11:39:59 2011 -0800 @@ -0,0 +1,96 @@ +/* + * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +/** + * @test + * @bug 7110149 + * @summary Test basic deflater & inflater functionality + */ + +import java.io.*; +import java.util.*; +import java.util.zip.*; + +public class DeInflate { + + static void check(Deflater compresser, byte[] in, int len, + byte[] out1, byte[] out2, boolean nowrap) + throws Throwable + { + Arrays.fill(out1, (byte)0); + Arrays.fill(out2, (byte)0); + + compresser.setInput(in, 0, len); + compresser.finish(); + int m = compresser.deflate(out1); + + Inflater decompresser = new Inflater(nowrap); + decompresser.setInput(out1, 0, m); + int n = decompresser.inflate(out2); + + if (n != len || + !Arrays.equals(Arrays.copyOf(in, len), Arrays.copyOf(out2, len)) || + decompresser.inflate(out2) != 0) { + System.out.printf("m=%d, n=%d, len=%d, eq=%b%n", + m, n, len, Arrays.equals(in, out2)); + throw new RuntimeException("De/inflater failed:" + compresser); + } + } + + public static void main(String[] args) throws Throwable { + byte[] dataIn = new byte[1024 * 512]; + new Random().nextBytes(dataIn); + byte[] dataOut1 = new byte[dataIn.length + 1024]; + byte[] dataOut2 = new byte[dataIn.length]; + boolean wrap[] = new boolean[] { false, true }; + + for (int level = Deflater.DEFAULT_COMPRESSION; + level <= Deflater.BEST_COMPRESSION; level++) { + System.out.print("level=" + level + ", strategy= "); + for (int strategy = Deflater.DEFAULT_STRATEGY; + strategy <= Deflater.HUFFMAN_ONLY; strategy++) { + System.out.print(" " + strategy + " nowrap["); + for (int dowrap = 0; dowrap <= 1; dowrap++) { + System.out.print(" " + wrap[dowrap]); + for (int i = 0; i < 5; i++) { + Deflater def = new Deflater(level, wrap[dowrap]); + if (strategy != Deflater.DEFAULT_STRATEGY) { + def.setStrategy(strategy); + // The first invocation after setLevel/Strategy() + // with a different level/stragety returns 0, if + // there is no need to flush out anything for the + // previous setting/"data", this is tricky and + // appears un-documented. + def.deflate(dataOut2); + } + int len = (i == 0)? dataIn.length + : new Random().nextInt(dataIn.length); + check(def, dataIn, len, dataOut1, dataOut2, wrap[dowrap]); + } + } + System.out.print("] "); + } + System.out.println(); + } + } +}