rt/emul/compact/src/test/java/org/apidesign/bck2brwsr/tck/ByteArithmeticTest.java
1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/rt/emul/compact/src/test/java/org/apidesign/bck2brwsr/tck/ByteArithmeticTest.java Sun Apr 28 10:26:08 2013 +0200
1.3 @@ -0,0 +1,147 @@
1.4 +/**
1.5 + * Back 2 Browser Bytecode Translator
1.6 + * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
1.7 + *
1.8 + * This program is free software: you can redistribute it and/or modify
1.9 + * it under the terms of the GNU General Public License as published by
1.10 + * the Free Software Foundation, version 2 of the License.
1.11 + *
1.12 + * This program is distributed in the hope that it will be useful,
1.13 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
1.14 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1.15 + * GNU General Public License for more details.
1.16 + *
1.17 + * You should have received a copy of the GNU General Public License
1.18 + * along with this program. Look for COPYING file in the top folder.
1.19 + * If not, see http://opensource.org/licenses/GPL-2.0.
1.20 + */
1.21 +package org.apidesign.bck2brwsr.tck;
1.22 +
1.23 +import org.apidesign.bck2brwsr.core.JavaScriptBody;
1.24 +import org.apidesign.bck2brwsr.vmtest.Compare;
1.25 +import org.apidesign.bck2brwsr.vmtest.VMTest;
1.26 +import org.testng.annotations.Factory;
1.27 +
1.28 +/**
1.29 + *
1.30 + * @author Jaroslav Tulach <jtulach@netbeans.org>
1.31 + */
1.32 +public class ByteArithmeticTest {
1.33 +
1.34 + private static byte add(byte x, byte y) {
1.35 + return (byte)(x + y);
1.36 + }
1.37 +
1.38 + private static byte sub(byte x, byte y) {
1.39 + return (byte)(x - y);
1.40 + }
1.41 +
1.42 + private static byte mul(byte x, byte y) {
1.43 + return (byte)(x * y);
1.44 + }
1.45 +
1.46 + private static byte div(byte x, byte y) {
1.47 + return (byte)(x / y);
1.48 + }
1.49 +
1.50 + private static byte mod(byte x, byte y) {
1.51 + return (byte)(x % y);
1.52 + }
1.53 +
1.54 + @Compare public byte conversion() {
1.55 + return (byte)123456;
1.56 + }
1.57 +
1.58 + @Compare public byte addOverflow() {
1.59 + return add(Byte.MAX_VALUE, (byte)1);
1.60 + }
1.61 +
1.62 + @Compare public byte subUnderflow() {
1.63 + return sub(Byte.MIN_VALUE, (byte)1);
1.64 + }
1.65 +
1.66 + @Compare public byte addMaxByteAndMaxByte() {
1.67 + return add(Byte.MAX_VALUE, Byte.MAX_VALUE);
1.68 + }
1.69 +
1.70 + @Compare public byte subMinByteAndMinByte() {
1.71 + return sub(Byte.MIN_VALUE, Byte.MIN_VALUE);
1.72 + }
1.73 +
1.74 + @Compare public byte multiplyMaxByte() {
1.75 + return mul(Byte.MAX_VALUE, (byte)2);
1.76 + }
1.77 +
1.78 + @Compare public byte multiplyMaxByteAndMaxByte() {
1.79 + return mul(Byte.MAX_VALUE, Byte.MAX_VALUE);
1.80 + }
1.81 +
1.82 + @Compare public byte multiplyMinByte() {
1.83 + return mul(Byte.MIN_VALUE, (byte)2);
1.84 + }
1.85 +
1.86 + @Compare public byte multiplyMinByteAndMinByte() {
1.87 + return mul(Byte.MIN_VALUE, Byte.MIN_VALUE);
1.88 + }
1.89 +
1.90 + @Compare public byte multiplyPrecision() {
1.91 + return mul((byte)17638, (byte)1103);
1.92 + }
1.93 +
1.94 + @Compare public byte division() {
1.95 + return div((byte)1, (byte)2);
1.96 + }
1.97 +
1.98 + @Compare public byte divisionReminder() {
1.99 + return mod((byte)1, (byte)2);
1.100 + }
1.101 +
1.102 + private static int readShort(byte[] byteCodes, int offset) {
1.103 + int signed = byteCodes[offset];
1.104 + byte b0 = (byte)signed;
1.105 + return (b0 << 8) | (byteCodes[offset + 1] & 0xff);
1.106 + }
1.107 +
1.108 + private static int readShortArg(byte[] byteCodes, int offsetInstruction) {
1.109 + return readShort(byteCodes, offsetInstruction + 1);
1.110 + }
1.111 +
1.112 + @Compare public int readIntArgs255and156() {
1.113 + final byte[] arr = new byte[] { (byte)0, (byte)255, (byte)156 };
1.114 +
1.115 + assert arr[1] == -1 : "First byte: " + arr[1];
1.116 + assert arr[2] == -100 : "Second byte: " + arr[2];
1.117 + final int ret = readShortArg(arr, 0);
1.118 + assert ret < 65000: "Value: " + ret;
1.119 + return ret;
1.120 + }
1.121 +
1.122 + @JavaScriptBody(args = { "arr" }, body = "arr[1] = 255; arr[2] = 156; return arr;")
1.123 + private static byte[] fill255and156(byte[] arr) {
1.124 + arr[1] = (byte)255;
1.125 + arr[2] = (byte)156;
1.126 + return arr;
1.127 + }
1.128 +
1.129 + @Compare public int readIntArgs255and156JSArray() {
1.130 + final byte[] arr = fill255and156(new byte[] { 0, 0, 0 });
1.131 +
1.132 + final int ret = readShortArg(arr, 0);
1.133 + assert ret < 65000: "Value: " + ret;
1.134 + return ret;
1.135 + }
1.136 +
1.137 + @Compare public int readIntArgsMinus1andMinus100() {
1.138 + final byte[] arr = new byte[] { (byte)0, (byte)-1, (byte)-100 };
1.139 +
1.140 + assert arr[1] == -1 : "First byte: " + arr[1];
1.141 + assert arr[2] == -100 : "Second byte: " + arr[2];
1.142 +
1.143 + return readShortArg(arr, 0);
1.144 + }
1.145 +
1.146 + @Factory
1.147 + public static Object[] create() {
1.148 + return VMTest.create(ByteArithmeticTest.class);
1.149 + }
1.150 +}