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1 /* |
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2 * Copyright 2009 Google, Inc. All Rights Reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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20 * CA 95054 USA or visit www.sun.com if you need additional information or |
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21 * have any questions. |
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22 */ |
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23 |
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24 /* |
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25 * @test |
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26 * @bug 6582946 |
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27 * @summary Test the primitive wrappers compare and compareTo methods |
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28 */ |
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29 |
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30 import java.util.Random; |
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31 |
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32 public class Compare { |
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33 |
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34 final Random rnd = new Random(); |
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35 |
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36 boolean toBoolean(long x) { return x > 0; } |
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37 |
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38 void compareAll(long x, long y) { |
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39 check(Double.compare(x, y) == |
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40 Double.valueOf(x).compareTo(Double.valueOf(y))); |
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41 check(Float.compare(x, y) == |
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42 Float.valueOf(x).compareTo(Float.valueOf(y))); |
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43 check(Long.compare(x, y) == |
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44 Long.valueOf(x).compareTo(Long.valueOf(y))); |
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45 check(Integer.compare((int) x, (int) y) == |
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46 Integer.valueOf((int) x).compareTo(Integer.valueOf((int) y))); |
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47 check(Short.compare((short) x, (short) y) == |
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48 Short.valueOf((short) x).compareTo(Short.valueOf((short) y))); |
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49 check(Character.compare((char) x, (char) y) == |
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50 Character.valueOf((char) x).compareTo(Character.valueOf((char) y))); |
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51 check(Byte.compare((byte) x, (byte) y) == |
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52 Byte.valueOf((byte) x).compareTo(Byte.valueOf((byte) y))); |
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53 check(Boolean.compare(toBoolean(x), toBoolean(y)) == |
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54 Boolean.valueOf(toBoolean(x)).compareTo(Boolean.valueOf(toBoolean(y)))); |
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55 |
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56 check(Double.compare(x, y) == -Double.compare(y, x)); |
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57 check(Float.compare(x, y) == -Float.compare(y, x)); |
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58 check(Long.compare(x, y) == -Long.compare(y, x)); |
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59 check(Integer.compare((int) x, (int) y) == |
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60 -Integer.compare((int) y, (int) x)); |
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61 check(Short.compare((short) x, (short) y) == |
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62 -Short.compare((short) y, (short) x)); |
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63 check(Character.compare((char) x, (char) y) == |
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64 -Character.compare((char) y, (char) x)); |
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65 check(Byte.compare((byte) x, (byte) y) == |
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66 -Byte.compare((byte) y, (byte) x)); |
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67 |
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68 equal(Long.compare(x, y), |
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69 x < y ? -1 : x > y ? 1 : 0); |
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70 |
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71 { |
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72 int a = (int) x, b = (int) y; |
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73 equal(Integer.compare(a, b), |
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74 a < b ? -1 : a > b ? 1 : 0); |
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75 } |
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76 |
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77 { |
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78 short a = (short) x, b = (short) y; |
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79 equal(Short.compare(a, b), |
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80 a - b); |
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81 } |
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82 |
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83 { |
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84 char a = (char) x, b = (char) y; |
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85 equal(Character.compare(a, b), |
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86 a - b); |
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87 } |
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88 |
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89 { |
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90 byte a = (byte) x, b = (byte) y; |
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91 equal(Byte.compare(a, b), |
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92 a - b); |
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93 } |
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94 |
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95 { |
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96 boolean a = toBoolean(x), b = toBoolean(y); |
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97 equal(Boolean.compare(a, b), |
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98 a == b ? 0 : a ? 1 : -1); |
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99 } |
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100 } |
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101 |
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102 void test(String args[]) throws Exception { |
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103 long[] longs = { |
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104 Long.MIN_VALUE, |
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105 Integer.MIN_VALUE, |
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106 Short.MIN_VALUE, |
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107 Character.MIN_VALUE, |
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108 Byte.MIN_VALUE, |
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109 -1, 0, 1, |
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110 Byte.MAX_VALUE, |
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111 Character.MAX_VALUE, |
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112 Short.MAX_VALUE, |
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113 Integer.MAX_VALUE, |
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114 Long.MAX_VALUE, |
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115 rnd.nextLong(), |
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116 rnd.nextInt(), |
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117 }; |
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118 |
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119 for (long x : longs) { |
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120 for (long y : longs) { |
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121 compareAll(x, y); |
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122 } |
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123 } |
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124 } |
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125 |
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126 //--------------------- Infrastructure --------------------------- |
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127 volatile int passed = 0, failed = 0; |
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128 void pass() {passed++;} |
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129 void fail() {failed++; Thread.dumpStack();} |
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130 void fail(String msg) {System.err.println(msg); fail();} |
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131 void unexpected(Throwable t) {failed++; t.printStackTrace();} |
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132 void check(boolean cond) {if (cond) pass(); else fail();} |
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133 void equal(Object x, Object y) { |
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134 if (x == null ? y == null : x.equals(y)) pass(); |
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135 else fail(x + " not equal to " + y);} |
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136 public static void main(String[] args) throws Throwable { |
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137 new Compare().instanceMain(args);} |
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138 public void instanceMain(String[] args) throws Throwable { |
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139 try {test(args);} catch (Throwable t) {unexpected(t);} |
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140 System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed); |
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141 if (failed > 0) throw new AssertionError("Some tests failed");} |
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142 } |