| /* |
| * Copyright 2009 Google Inc. |
| * |
| * Licensed 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. |
| */ |
| |
| /* |
| * 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. |
| * |
| * INCLUDES MODIFICATIONS BY GOOGLE. |
| */ |
| /** |
| * author Elena Semukhina |
| */ |
| package com.google.gwt.emultest.java.math; |
| |
| import com.google.gwt.emultest.java.util.EmulTestBase; |
| |
| import java.math.BigInteger; |
| |
| /** |
| * Class: java.math.BigInteger Methods: and, andNot. |
| */ |
| public class BigIntegerNotTest extends EmulTestBase { |
| /** |
| * andNot for two negative numbers; the first is longer. |
| */ |
| public void testAndNotNegNegFirstLonger() { |
| byte aBytes[] = { |
| -128, 9, 56, 100, -2, -76, 89, 45, 91, 3, -15, 35, 26, -117, 23, 87, |
| -25, -75}; |
| byte bBytes[] = {-2, -3, -4, -4, 5, 14, 23, 39, 48, 57, 66, 5, 14, 23}; |
| int aSign = -1; |
| int bSign = -1; |
| byte rBytes[] = {73, -92, -48, 4, 12, 6, 4, 32, 48, 64, 0, 8, 2}; |
| BigInteger aNumber = new BigInteger(aSign, aBytes); |
| BigInteger bNumber = new BigInteger(bSign, bBytes); |
| BigInteger result = aNumber.andNot(bNumber); |
| byte resBytes[] = new byte[rBytes.length]; |
| resBytes = result.toByteArray(); |
| for (int i = 0; i < resBytes.length; i++) { |
| assertTrue(resBytes[i] == rBytes[i]); |
| } |
| assertEquals("incorrect sign", 1, result.signum()); |
| } |
| |
| /** |
| * andNot for two positive numbers; the first is longer. |
| */ |
| public void testAndNotPosPosFirstLonger() { |
| byte aBytes[] = { |
| -128, 9, 56, 100, -2, -76, 89, 45, 91, 3, -15, 35, 26, -117, 23, 87, |
| -25, -75}; |
| byte bBytes[] = {-2, -3, -4, -4, 5, 14, 23, 39, 48, 57, 66, 5, 14, 23}; |
| int aSign = 1; |
| int bSign = 1; |
| byte rBytes[] = { |
| 0, -128, 9, 56, 100, 0, 0, 1, 1, 90, 1, -32, 0, 10, -126, 21, 82, -31, |
| -96}; |
| BigInteger aNumber = new BigInteger(aSign, aBytes); |
| BigInteger bNumber = new BigInteger(bSign, bBytes); |
| BigInteger result = aNumber.andNot(bNumber); |
| byte resBytes[] = new byte[rBytes.length]; |
| resBytes = result.toByteArray(); |
| for (int i = 0; i < resBytes.length; i++) { |
| assertTrue(resBytes[i] == rBytes[i]); |
| } |
| assertEquals("incorrect sign", 1, result.signum()); |
| } |
| |
| /** |
| * andNot for two positive numbers; the first is shorter. |
| */ |
| public void testAndNotPosPosFirstShorter() { |
| byte aBytes[] = {-2, -3, -4, -4, 5, 14, 23, 39, 48, 57, 66, 5, 14, 23}; |
| byte bBytes[] = { |
| -128, 9, 56, 100, -2, -76, 89, 45, 91, 3, -15, 35, 26, -117, 23, 87, |
| -25, -75}; |
| int aSign = 1; |
| int bSign = 1; |
| byte rBytes[] = {73, -92, -48, 4, 12, 6, 4, 32, 48, 64, 0, 8, 2}; |
| BigInteger aNumber = new BigInteger(aSign, aBytes); |
| BigInteger bNumber = new BigInteger(bSign, bBytes); |
| BigInteger result = aNumber.andNot(bNumber); |
| byte resBytes[] = new byte[rBytes.length]; |
| resBytes = result.toByteArray(); |
| for (int i = 0; i < resBytes.length; i++) { |
| assertTrue(resBytes[i] == rBytes[i]); |
| } |
| assertEquals("incorrect sign", 1, result.signum()); |
| } |
| |
| /** |
| * andNot for a negative and a positive numbers; the first is longer. |
| */ |
| public void testNegPosFirstLonger() { |
| byte aBytes[] = { |
| -128, 9, 56, 100, -2, -76, 89, 45, 91, 3, -15, 35, 26, -117, 23, 87, |
| -25, -75}; |
| byte bBytes[] = {-2, -3, -4, -4, 5, 14, 23, 39, 48, 57, 66, 5, 14, 23}; |
| int aSign = -1; |
| int bSign = 1; |
| byte rBytes[] = { |
| -1, 127, -10, -57, -101, 1, 2, 2, 2, -96, -16, 8, -40, -59, 68, -88, |
| -88, 16, 72}; |
| BigInteger aNumber = new BigInteger(aSign, aBytes); |
| BigInteger bNumber = new BigInteger(bSign, bBytes); |
| BigInteger result = aNumber.andNot(bNumber); |
| byte resBytes[] = new byte[rBytes.length]; |
| resBytes = result.toByteArray(); |
| for (int i = 0; i < resBytes.length; i++) { |
| assertTrue(resBytes[i] == rBytes[i]); |
| } |
| assertEquals("incorrect sign", -1, result.signum()); |
| } |
| |
| /** |
| * Not for a negative number. |
| */ |
| public void testNotNeg() { |
| byte aBytes[] = {-128, 56, 100, -2, -76, 89, 45, 91, 3, -15, 35, 26, -117}; |
| int aSign = -1; |
| byte rBytes[] = { |
| 0, -128, 56, 100, -2, -76, 89, 45, 91, 3, -15, 35, 26, -118}; |
| BigInteger aNumber = new BigInteger(aSign, aBytes); |
| BigInteger result = aNumber.not(); |
| byte resBytes[] = new byte[rBytes.length]; |
| resBytes = result.toByteArray(); |
| for (int i = 0; i < resBytes.length; i++) { |
| assertTrue(resBytes[i] == rBytes[i]); |
| } |
| assertEquals("incorrect sign", 1, result.signum()); |
| } |
| |
| /** |
| * Not for ONE. |
| */ |
| public void testNotOne() { |
| byte rBytes[] = {-2}; |
| BigInteger aNumber = BigInteger.ONE; |
| BigInteger result = aNumber.not(); |
| byte resBytes[] = new byte[rBytes.length]; |
| resBytes = result.toByteArray(); |
| for (int i = 0; i < resBytes.length; i++) { |
| assertTrue(resBytes[i] == rBytes[i]); |
| } |
| assertEquals("incorrect sign", -1, result.signum()); |
| } |
| |
| /** |
| * Not for a positive number. |
| */ |
| public void testNotPos() { |
| byte aBytes[] = {-128, 56, 100, -2, -76, 89, 45, 91, 3, -15, 35, 26, -117}; |
| int aSign = 1; |
| byte rBytes[] = { |
| -1, 127, -57, -101, 1, 75, -90, -46, -92, -4, 14, -36, -27, 116}; |
| BigInteger aNumber = new BigInteger(aSign, aBytes); |
| BigInteger result = aNumber.not(); |
| byte resBytes[] = new byte[rBytes.length]; |
| resBytes = result.toByteArray(); |
| for (int i = 0; i < resBytes.length; i++) { |
| assertTrue(resBytes[i] == rBytes[i]); |
| } |
| assertEquals("incorrect sign", -1, result.signum()); |
| } |
| |
| /** |
| * Not for a negative number. |
| */ |
| |
| public void testNotSpecialCase() { |
| byte aBytes[] = {-1, -1, -1, -1}; |
| int aSign = 1; |
| byte rBytes[] = {-1, 0, 0, 0, 0}; |
| BigInteger aNumber = new BigInteger(aSign, aBytes); |
| BigInteger result = aNumber.not(); |
| byte resBytes[] = new byte[rBytes.length]; |
| resBytes = result.toByteArray(); |
| for (int i = 0; i < resBytes.length; i++) { |
| assertTrue(resBytes[i] == rBytes[i]); |
| } |
| assertEquals("incorrect sign", -1, result.signum()); |
| } |
| |
| /** |
| * Not for ZERO. |
| */ |
| public void testNotZero() { |
| byte rBytes[] = {-1}; |
| BigInteger aNumber = BigInteger.ZERO; |
| BigInteger result = aNumber.not(); |
| byte resBytes[] = new byte[rBytes.length]; |
| resBytes = result.toByteArray(); |
| for (int i = 0; i < resBytes.length; i++) { |
| assertTrue(resBytes[i] == rBytes[i]); |
| } |
| assertEquals("incorrect sign", -1, result.signum()); |
| } |
| } |