rt/emul/compacttest/src/test/java/org/apidesign/bck2brwsr/tck/IntegerArithmeticTest.java
author Jaroslav Tulach <jaroslav.tulach@apidesign.org>
Tue, 07 Jul 2015 07:46:52 +0200
changeset 1837 62b289bb87c7
parent 1787 ea12a3bb4b33
permissions -rw-r--r--
Throwing more of NumberFormatException when parsing numbers
     1 /**
     2  * Back 2 Browser Bytecode Translator
     3  * Copyright (C) 2012-2015 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
     4  *
     5  * This program is free software: you can redistribute it and/or modify
     6  * it under the terms of the GNU General Public License as published by
     7  * the Free Software Foundation, version 2 of the License.
     8  *
     9  * This program is distributed in the hope that it will be useful,
    10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    12  * GNU General Public License for more details.
    13  *
    14  * You should have received a copy of the GNU General Public License
    15  * along with this program. Look for COPYING file in the top folder.
    16  * If not, see http://opensource.org/licenses/GPL-2.0.
    17  */
    18 package org.apidesign.bck2brwsr.tck;
    19 
    20 import org.apidesign.bck2brwsr.vmtest.Compare;
    21 import org.apidesign.bck2brwsr.vmtest.VMTest;
    22 import org.testng.annotations.Factory;
    23 
    24 /**
    25  *
    26  * @author Jaroslav Tulach <jtulach@netbeans.org>
    27  */
    28 public class IntegerArithmeticTest {
    29     
    30     private static int add(int x, int y) {
    31         return x + y;
    32     }
    33     
    34     private static int sub(int x, int y) {
    35         return x - y;
    36     }
    37     
    38     private static int mul(int x, int y) {
    39         return x * y;
    40     }
    41     
    42     private static int div(int x, int y) {
    43         return x / y;
    44     }
    45     
    46     private static int mod(int x, int y) {
    47         return x % y;
    48     }
    49     
    50     private static int neg(int x) {
    51         return (-x);
    52     }
    53 
    54     private static float fadd(float x, float y) {
    55         return x + y;
    56     }
    57 
    58     private static double dadd(double x, double y) {
    59         return x + y;
    60     }
    61     
    62     @Compare public int addOverflow() {
    63         return add(Integer.MAX_VALUE, 1);
    64     }
    65     
    66     @Compare public int subUnderflow() {
    67         return sub(Integer.MIN_VALUE, 1);
    68     }
    69     
    70     @Compare public int addMaxIntAndMaxInt() {
    71         return add(Integer.MAX_VALUE, Integer.MAX_VALUE);
    72     }
    73     
    74     @Compare public int subMinIntAndMinInt() {
    75         return sub(Integer.MIN_VALUE, Integer.MIN_VALUE);
    76     }
    77     
    78     @Compare public int multiplyMaxInt() {
    79         return mul(Integer.MAX_VALUE, 2);
    80     }
    81     
    82     @Compare public int multiplyMaxIntAndMaxInt() {
    83         return mul(Integer.MAX_VALUE, Integer.MAX_VALUE);
    84     }
    85     
    86     @Compare public int multiplyMinInt() {
    87         return mul(Integer.MIN_VALUE, 2);
    88     }
    89     
    90     @Compare public int multiplyMinIntAndMinInt() {
    91         return mul(Integer.MIN_VALUE, Integer.MIN_VALUE);
    92     }
    93     
    94     @Compare public int multiplyPrecision() {
    95         return mul(119106029, 1103515245);
    96     }
    97     
    98     @Compare public int division() {
    99         return div(1, 2);
   100     }
   101 
   102     @Compare public int divisionReminder() {
   103         return mod(1, 2);
   104     }
   105 
   106     @Compare public int negativeDivision() {
   107         return div(-7, 3);
   108     }
   109 
   110     @Compare public int negativeDivisionReminder() {
   111         return mod(-7, 3);
   112     }
   113 
   114     @Compare public int conversionFromFloat() {
   115         return (int) fadd(-2, -0.6f);
   116     }
   117 
   118     @Compare public int conversionFromDouble() {
   119         return (int) dadd(-2, -0.6);
   120     }
   121 
   122     @Compare public boolean divByZeroThrowsArithmeticException() {
   123         try {
   124             div(1, 0);
   125             return false;
   126         } catch (final ArithmeticException e) {
   127             return true;
   128         }
   129     }
   130 
   131     @Compare public boolean modByZeroThrowsArithmeticException() {
   132         try {
   133             mod(1, 0);
   134             return false;
   135         } catch (final ArithmeticException e) {
   136             return true;
   137         }
   138     }
   139 
   140     @Compare public int negate() {
   141         return neg(123456);
   142     }
   143     
   144     @Compare public int negateMaxInt() {
   145         return neg(Integer.MAX_VALUE);
   146     }
   147     
   148     @Compare public int negateMinInt() {
   149         return neg(Integer.MIN_VALUE);
   150     }
   151 
   152     @Compare public int parseNaN() {
   153         return Integer.parseInt("nothing");
   154     }
   155 
   156     @Compare public int parseAsIntNaN() {
   157         return Integer.parseInt("0.33");
   158     }
   159 
   160     @Compare public double parseDoubleNaN() {
   161         return Double.parseDouble("nothing");
   162     }
   163     
   164     @Compare public int sumTwoDimensions() {
   165         int[][] matrix = createMatrix(4, 3);
   166         matrix[0][0] += 10;
   167         return matrix[0][0];
   168     }
   169     
   170     static int[][] createMatrix(int x, int y) {
   171         return new int[x][y];
   172     }
   173     
   174     @Factory
   175     public static Object[] create() {
   176         return VMTest.create(IntegerArithmeticTest.class);
   177     }
   178 }