1 /* 2 * Copyright (C) 2017 The Guava Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except 5 * in compliance with the License. You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software distributed under the 10 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 11 * express or implied. See the License for the specific language governing permissions and 12 * limitations under the License. 13 */ 14 15 package com.google.common.collect; 16 17 import static com.google.common.collect.Hashing.smear; 18 19 import com.google.common.annotations.GwtCompatible; 20 import junit.framework.TestCase; 21 22 /** Tests for {@code Hashing}. */ 23 @GwtCompatible 24 @ElementTypesAreNonnullByDefault 25 public class HashingTest extends TestCase { testSmear()26 public void testSmear() { 27 assertEquals(1459320713, smear(754102528)); 28 assertEquals(-160560296, smear(1234567890)); 29 assertEquals(-1017931171, smear(1)); 30 assertEquals(-1350072884, smear(-2000000000)); 31 assertEquals(-809843551, smear(2000000000)); 32 assertEquals(-309370926, smear(-1155484576)); 33 assertEquals(-1645495900, smear(-723955400)); 34 assertEquals(766424523, smear(1033096058)); 35 assertEquals(-757003149, smear(-1690734402)); 36 assertEquals(-245078984, smear(-1557280266)); 37 assertEquals(-1401957971, smear(1327362106)); 38 assertEquals(1398564061, smear(-1930858313)); 39 assertEquals(799903031, smear(502539523)); 40 assertEquals(587718043, smear(-1728529858)); 41 assertEquals(1757836855, smear(-938301587)); 42 assertEquals(1002498708, smear(1431162155)); 43 assertEquals(52905316, smear(1085665355)); 44 assertEquals(-1590037357, smear(1654374947)); 45 assertEquals(-100883544, smear(-1661998771)); 46 assertEquals(1312247346, smear(-65105105)); 47 assertEquals(-79641824, smear(-73789608)); 48 assertEquals(1739416943, smear(-518907128)); 49 assertEquals(483849880, smear(99135751)); 50 assertEquals(1797032732, smear(-252332814)); 51 assertEquals(329701497, smear(755814641)); 52 assertEquals(-1411506712, smear(1180918287)); 53 assertEquals(-132448996, smear(1344049776)); 54 assertEquals(51088191, smear(553609048)); 55 assertEquals(-322136643, smear(1580443894)); 56 assertEquals(1443704906, smear(629649304)); 57 assertEquals(-553641505, smear(-1266264776)); 58 assertEquals(996203724, smear(99807007)); 59 assertEquals(-1135153980, smear(5955764)); 60 assertEquals(-202220609, smear(-1946737912)); 61 assertEquals(1170627357, smear(39620447)); 62 assertEquals(666671983, smear(-152527805)); 63 assertEquals(830549906, smear(-1877116806)); 64 assertEquals(818272619, smear(448784075)); 65 assertEquals(743117554, smear(1086124775)); 66 assertEquals(1631368220, smear(-1609984092)); 67 assertEquals(-1030514623, smear(1227951724)); 68 assertEquals(1982371623, smear(1764356251)); 69 assertEquals(940948840, smear(64111306)); 70 assertEquals(1789753804, smear(-960731419)); 71 assertEquals(875698259, smear(-100082026)); 72 assertEquals(-1958263900, smear(-39845375)); 73 assertEquals(-1953676635, smear(-1339022546)); 74 assertEquals(1916180219, smear(2092649110)); 75 assertEquals(-1364581757, smear(-568315836)); 76 assertEquals(1918915654, smear(-1089884900)); 77 assertEquals(938102267, smear(-81839914)); 78 assertEquals(645819996, smear(-1146103148)); 79 assertEquals(-1072963524, smear(-1846688624)); 80 assertEquals(1704102819, smear(-784703072)); 81 assertEquals(-1183783966, smear(55004124)); 82 assertEquals(2097842757, smear(-691960657)); 83 assertEquals(-2139783994, smear(1770461755)); 84 assertEquals(1305227358, smear(-2032810463)); 85 assertEquals(-863362476, smear(-1177788003)); 86 assertEquals(37648593, smear(-432352882)); 87 assertEquals(1172853257, smear(-65824064)); 88 assertEquals(1811397990, smear(575267217)); 89 assertEquals(-91361736, smear(-1949367821)); 90 assertEquals(770365725, smear(356750287)); 91 assertEquals(522521211, smear(798819494)); 92 assertEquals(-37176651, smear(-92022521)); 93 assertEquals(-645245125, smear(1318001577)); 94 assertEquals(1460094042, smear(-1192467086)); 95 assertEquals(-1713924794, smear(-1412716779)); 96 assertEquals(-587126285, smear(-1223932479)); 97 assertEquals(2124902646, smear(276053035)); 98 assertEquals(1660727203, smear(615126903)); 99 assertEquals(-1851411975, smear(1542603436)); 100 assertEquals(-150321817, smear(1988388716)); 101 assertEquals(-1474601337, smear(1177882237)); 102 assertEquals(173314316, smear(19265476)); 103 assertEquals(910078796, smear(-1430871151)); 104 assertEquals(-1788757022, smear(307082914)); 105 assertEquals(-37217695, smear(-1333570194)); 106 assertEquals(-1750409108, smear(1496453452)); 107 assertEquals(-1184297296, smear(-790542135)); 108 assertEquals(1909334635, smear(1455004595)); 109 assertEquals(-626278147, smear(-1690249972)); 110 assertEquals(-1343393583, smear(-604059026)); 111 assertEquals(-72620618, smear(-290476856)); 112 assertEquals(-1721662527, smear(-122204761)); 113 assertEquals(20732956, smear(-1097539750)); 114 assertEquals(1689535747, smear(-576617062)); 115 assertEquals(-910174660, smear(-2002123957)); 116 assertEquals(-451949594, smear(-1663951485)); 117 assertEquals(-1040666441, smear(193034304)); 118 assertEquals(-568575382, smear(768747578)); 119 assertEquals(-1136854138, smear(1337360486)); 120 assertEquals(-1846303810, smear(934457803)); 121 assertEquals(560788004, smear(873612482)); 122 assertEquals(-1639693734, smear(-624972850)); 123 assertEquals(1401682479, smear(355564760)); 124 assertEquals(537840760, smear(41547336)); 125 assertEquals(822662855, smear(1781447028)); 126 assertEquals(2116379380, smear(-1321591463)); 127 assertEquals(1651021961, smear(1081281446)); 128 assertEquals(325386824, smear(-982203381)); 129 assertEquals(302543644, smear(-222544851)); 130 assertEquals(-467777650, smear(-1233998085)); 131 assertEquals(391483003, smear(-1331702554)); 132 } 133 } 134