1 /* 2 * Copyright 2012, Google Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * * Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * * Redistributions in binary form must reproduce the above 12 * copyright notice, this list of conditions and the following disclaimer 13 * in the documentation and/or other materials provided with the 14 * distribution. 15 * * Neither the name of Google Inc. nor the names of its 16 * contributors may be used to endorse or promote products derived from 17 * this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 package org.jf.dexlib2.dexbacked; 33 34 import junit.framework.Assert; 35 import org.jf.util.ExceptionWithContext; 36 import org.junit.Test; 37 38 public class BaseDexReaderLeb128Test { 39 @Test 40 public void testUleb128() { 41 performTest(0x0, new byte[]{0x0, 0x11}, 1); 42 performTest(0x1, new byte[]{0x1, 0x11}, 1); 43 performTest(0x3f, new byte[]{0x3f, 0x11}, 1); 44 performTest(0x40, new byte[]{0x40, 0x11}, 1); 45 performTest(0x70, new byte[]{0x70, 0x11}, 1); 46 performTest(0x7f, new byte[]{0x7f, 0x11}, 1); 47 48 performTest(0x80, new byte[]{(byte)0x80, 0x1, 0x11}, 2); 49 performTest(0x100, new byte[]{(byte)0x80, 0x2, 0x11}, 2); 50 performTest(0x800, new byte[]{(byte)0x80, 0x10, 0x11}, 2); 51 performTest(0x1f80, new byte[]{(byte)0x80, 0x3f, 0x11}, 2); 52 performTest(0x2000, new byte[]{(byte)0x80, 0x40, 0x11}, 2); 53 performTest(0x2080, new byte[]{(byte)0x80, 0x41, 0x11}, 2); 54 performTest(0x3800, new byte[]{(byte)0x80, 0x70, 0x11}, 2); 55 performTest(0x3f80, new byte[]{(byte)0x80, 0x7f, 0x11}, 2); 56 57 performTest(0xff, new byte[]{(byte)0xff, 0x1, 0x11}, 2); 58 performTest(0x17f, new byte[]{(byte)0xff, 0x2, 0x11}, 2); 59 performTest(0x87f, new byte[]{(byte)0xff, 0x10, 0x11}, 2); 60 performTest(0x1fff, new byte[]{(byte)0xff, 0x3f, 0x11}, 2); 61 performTest(0x207f, new byte[]{(byte)0xff, 0x40, 0x11}, 2); 62 performTest(0x20ff, new byte[]{(byte)0xff, 0x41, 0x11}, 2); 63 performTest(0x387f, new byte[]{(byte)0xff, 0x70, 0x11}, 2); 64 performTest(0x3fff, new byte[]{(byte)0xff, 0x7f, 0x11}, 2); 65 66 performTest(0x4000, new byte[]{(byte)0x80, (byte)0x80, 0x1, 0x11}, 3); 67 performTest(0x8000, new byte[]{(byte)0x80, (byte)0x80, 0x2, 0x11}, 3); 68 performTest(0x40000, new byte[]{(byte)0x80, (byte)0x80, 0x10, 0x11}, 3); 69 performTest(0xfc000, new byte[]{(byte)0x80, (byte)0x80, 0x3f, 0x11}, 3); 70 performTest(0x100000, new byte[]{(byte)0x80, (byte)0x80, 0x40, 0x11}, 3); 71 performTest(0x104000, new byte[]{(byte)0x80, (byte)0x80, 0x41, 0x11}, 3); 72 performTest(0x1c0000, new byte[]{(byte)0x80, (byte)0x80, 0x70, 0x11}, 3); 73 performTest(0x1fc000, new byte[]{(byte)0x80, (byte)0x80, 0x7f, 0x11}, 3); 74 75 performTest(0x7fff, new byte[]{(byte)0xff, (byte)0xff, 0x1, 0x11}, 3); 76 performTest(0xbfff, new byte[]{(byte)0xff, (byte)0xff, 0x2, 0x11}, 3); 77 performTest(0x43fff, new byte[]{(byte)0xff, (byte)0xff, 0x10, 0x11}, 3); 78 performTest(0xfffff, new byte[]{(byte)0xff, (byte)0xff, 0x3f, 0x11}, 3); 79 performTest(0x103fff, new byte[]{(byte)0xff, (byte)0xff, 0x40, 0x11}, 3); 80 performTest(0x107fff, new byte[]{(byte)0xff, (byte)0xff, 0x41, 0x11}, 3); 81 performTest(0x1c3fff, new byte[]{(byte)0xff, (byte)0xff, 0x70, 0x11}, 3); 82 performTest(0x1fffff, new byte[]{(byte)0xff, (byte)0xff, 0x7f, 0x11}, 3); 83 84 performTest(0x200000, new byte[]{(byte)0x80, (byte)0x80, (byte)0x80, 0x1, 0x11}, 4); 85 performTest(0x400000, new byte[]{(byte)0x80, (byte)0x80, (byte)0x80, 0x2, 0x11}, 4); 86 performTest(0x2000000, new byte[]{(byte)0x80, (byte)0x80, (byte)0x80, 0x10, 0x11}, 4); 87 performTest(0x7e00000, new byte[]{(byte)0x80, (byte)0x80, (byte)0x80, 0x3f, 0x11}, 4); 88 performTest(0x8000000, new byte[]{(byte)0x80, (byte)0x80, (byte)0x80, 0x40, 0x11}, 4); 89 performTest(0x8200000, new byte[]{(byte)0x80, (byte)0x80, (byte)0x80, 0x41, 0x11}, 4); 90 performTest(0xe000000, new byte[]{(byte)0x80, (byte)0x80, (byte)0x80, 0x70, 0x11}, 4); 91 performTest(0xfe00000, new byte[]{(byte)0x80, (byte)0x80, (byte)0x80, 0x7f, 0x11}, 4); 92 93 performTest(0x3fffff, new byte[]{(byte)0xff, (byte)0xff, (byte)0xff, 0x1, 0x11}, 4); 94 performTest(0x5fffff, new byte[]{(byte)0xff, (byte)0xff, (byte)0xff, 0x2, 0x11}, 4); 95 performTest(0x21fffff, new byte[]{(byte)0xff, (byte)0xff, (byte)0xff, 0x10, 0x11}, 4); 96 performTest(0x7ffffff, new byte[]{(byte)0xff, (byte)0xff, (byte)0xff, 0x3f, 0x11}, 4); 97 performTest(0x81fffff, new byte[]{(byte)0xff, (byte)0xff, (byte)0xff, 0x40, 0x11}, 4); 98 performTest(0x83fffff, new byte[]{(byte)0xff, (byte)0xff, (byte)0xff, 0x41, 0x11}, 4); 99 performTest(0xe1fffff, new byte[]{(byte)0xff, (byte)0xff, (byte)0xff, 0x70, 0x11}, 4); 100 performTest(0xfffffff, new byte[]{(byte)0xff, (byte)0xff, (byte)0xff, 0x7f, 0x11}, 4); 101 102 performTest(0x10000000, new byte[]{(byte)0x80, (byte)0x80, (byte)0x80, (byte)0x80, 0x1, 0x11}, 5); 103 performTest(0x20000000, new byte[]{(byte)0x80, (byte)0x80, (byte)0x80, (byte)0x80, 0x2, 0x11}, 5); 104 performTest(0x70000000, new byte[]{(byte)0x80, (byte)0x80, (byte)0x80, (byte)0x80, 0x7, 0x11}, 5); 105 performTest(0x70000000, new byte[]{(byte)0x80, (byte)0x80, (byte)0x80, (byte)0x80, 0x17, 0x11}, 5); 106 performTest(0x70000000, new byte[]{(byte)0x80, (byte)0x80, (byte)0x80, (byte)0x80, 0x47, 0x11}, 5); 107 performTest(0x70000000, new byte[]{(byte)0x80, (byte)0x80, (byte)0x80, (byte)0x80, 0x77, 0x11}, 5); 108 109 performTest(0x1fffffff, new byte[]{(byte)0xff, (byte)0xff, (byte)0xff, (byte)0xff, 0x1, 0x11}, 5); 110 performTest(0x2fffffff, new byte[]{(byte)0xff, (byte)0xff, (byte)0xff, (byte)0xff, 0x2, 0x11}, 5); 111 performTest(0x7fffffff, new byte[]{(byte)0xff, (byte)0xff, (byte)0xff, (byte)0xff, 0x7, 0x11}, 5); 112 performTest(0x7fffffff, new byte[]{(byte)0xff, (byte)0xff, (byte)0xff, (byte)0xff, 0x17, 0x11}, 5); 113 performTest(0x7fffffff, new byte[]{(byte)0xff, (byte)0xff, (byte)0xff, (byte)0xff, 0x47, 0x11}, 5); 114 performTest(0x7fffffff, new byte[]{(byte)0xff, (byte)0xff, (byte)0xff, (byte)0xff, 0x77, 0x11}, 5); 115 116 performTest(0xcc, new byte[]{(byte)0xcc, 0x1}); 117 performTest(0x3b67, new byte[]{(byte)0xe7, 0x76}); 118 performTest(0x1b857589, new byte[]{(byte)0x89, (byte)0xeb, (byte)0x95, (byte)0xdc, 0x1}); 119 performTest(0x375d82e5, new byte[]{(byte)0xe5, (byte)0x85, (byte)0xf6, (byte)0xba, 0x3}); 120 performTest(0x5524da90, new byte[]{(byte)0x90, (byte)0xb5, (byte)0x93, (byte)0xa9, 0x5}); 121 performTest(0x35, new byte[]{0x35}); 122 performTest(0xd7, new byte[]{(byte)0xd7, 0x1}); 123 performTest(0x63, new byte[]{0x63}); 124 performTest(0x22cb5b, new byte[]{(byte)0xdb, (byte)0x96, (byte)0x8b, 0x1}); 125 performTest(0x585e, new byte[]{(byte)0xde, (byte)0xb0, 0x1}); 126 performTest(0x5d62a965, new byte[]{(byte)0xe5, (byte)0xd2, (byte)0x8a, (byte)0xeb, 0x5}); 127 performTest(0x6af172db, new byte[]{(byte)0xdb, (byte)0xe5, (byte)0xc5, (byte)0xd7, 0x6}); 128 performTest(0xe, new byte[]{0xe}); 129 performTest(0xb75f7a, new byte[]{(byte)0xfa, (byte)0xbe, (byte)0xdd, 0x5}); 130 performTest(0x8604, new byte[]{(byte)0x84, (byte)0x8c, 0x2}); 131 performTest(0x31624026, new byte[]{(byte)0xa6, (byte)0x80, (byte)0x89, (byte)0x8b, 0x3}); 132 performTest(0x8d, new byte[]{(byte)0x8d, 0x1}); 133 performTest(0xc0, new byte[]{(byte)0xc0, 0x1}); 134 performTest(0xd7618cb, new byte[]{(byte)0xcb, (byte)0xb1, (byte)0xd8, 0x6b}); 135 performTest(0xff, new byte[]{(byte)0xff, 0x1}); 136 performTest(0x5c923e42, new byte[]{(byte)0xc2, (byte)0xfc, (byte)0xc8, (byte)0xe4, 0x5}); 137 performTest(0x91, new byte[]{(byte)0x91, 0x1}); 138 performTest(0xbe0f97, new byte[]{(byte)0x97, (byte)0x9f, (byte)0xf8, 0x5}); 139 performTest(0x88bc786, new byte[]{(byte)0x86, (byte)0x8f, (byte)0xaf, 0x44}); 140 performTest(0x8caa9a, new byte[]{(byte)0x9a, (byte)0xd5, (byte)0xb2, 0x4}); 141 performTest(0x4aee, new byte[]{(byte)0xee, (byte)0x95, 0x1}); 142 performTest(0x438c86, new byte[]{(byte)0x86, (byte)0x99, (byte)0x8e, 0x2}); 143 performTest(0xc0, new byte[]{(byte)0xc0, 0x1}); 144 performTest(0xb486, new byte[]{(byte)0x86, (byte)0xe9, 0x2}); 145 performTest(0x83fd, new byte[]{(byte)0xfd, (byte)0x87, 0x2}); 146 performTest(0x7b, new byte[]{0x7b}); 147 performTest(0x1dc84e14, new byte[]{(byte)0x94, (byte)0x9c, (byte)0xa1, (byte)0xee, 0x1}); 148 performTest(0x2dfc, new byte[]{(byte)0xfc, 0x5b}); 149 performTest(0x88, new byte[]{(byte)0x88, 0x1}); 150 performTest(0x919e, new byte[]{(byte)0x9e, (byte)0xa3, 0x2}); 151 performTest(0x2fcf, new byte[]{(byte)0xcf, 0x5f}); 152 performTest(0xf00674, new byte[]{(byte)0xf4, (byte)0x8c, (byte)0xc0, 0x7}); 153 performTest(0xed5f7d, new byte[]{(byte)0xfd, (byte)0xbe, (byte)0xb5, 0x7}); 154 performTest(0xdbd9, new byte[]{(byte)0xd9, (byte)0xb7, 0x3}); 155 performTest(0xa1, new byte[]{(byte)0xa1, 0x1}); 156 performTest(0xf6f76c, new byte[]{(byte)0xec, (byte)0xee, (byte)0xdb, 0x7}); 157 performTest(0x1eed6f, new byte[]{(byte)0xef, (byte)0xda, 0x7b}); 158 performTest(0x95c, new byte[]{(byte)0xdc, 0x12}); 159 performTest(0x1e, new byte[]{0x1e}); 160 performTest(0xe5, new byte[]{(byte)0xe5, 0x1}); 161 performTest(0x2f2f13, new byte[]{(byte)0x93, (byte)0xde, (byte)0xbc, 0x1}); 162 performTest(0x19, new byte[]{0x19}); 163 performTest(0x3f, new byte[]{0x3f}); 164 performTest(0x75e3, new byte[]{(byte)0xe3, (byte)0xeb, 0x1}); 165 performTest(0x67a4c4, new byte[]{(byte)0xc4, (byte)0xc9, (byte)0x9e, 0x3}); 166 performTest(0xb948, new byte[]{(byte)0xc8, (byte)0xf2, 0x2}); 167 performTest(0x34b1c9de, new byte[]{(byte)0xde, (byte)0x93, (byte)0xc7, (byte)0xa5, 0x3}); 168 performTest(0x58f0, new byte[]{(byte)0xf0, (byte)0xb1, 0x1}); 169 performTest(0x0, new byte[]{0x0}); 170 performTest(0x9ab3e5, new byte[]{(byte)0xe5, (byte)0xe7, (byte)0xea, 0x4}); 171 performTest(0x4c4a8a3d, new byte[]{(byte)0xbd, (byte)0x94, (byte)0xaa, (byte)0xe2, 0x4}); 172 performTest(0x99, new byte[]{(byte)0x99, 0x1}); 173 performTest(0x1a67e9, new byte[]{(byte)0xe9, (byte)0xcf, 0x69}); 174 performTest(0x5ddb2d, new byte[]{(byte)0xad, (byte)0xb6, (byte)0xf7, 0x2}); 175 performTest(0xeccb680, new byte[]{(byte)0x80, (byte)0xed, (byte)0xb2, 0x76}); 176 performTest(0x6910bbf0, new byte[]{(byte)0xf0, (byte)0xf7, (byte)0xc2, (byte)0xc8, 0x6}); 177 performTest(0xc5, new byte[]{(byte)0xc5, 0x1}); 178 performTest(0xdd7225, new byte[]{(byte)0xa5, (byte)0xe4, (byte)0xf5, 0x6}); 179 performTest(0x4561ea2e, new byte[]{(byte)0xae, (byte)0xd4, (byte)0x87, (byte)0xab, 0x4}); 180 performTest(0x7f4f08, new byte[]{(byte)0x88, (byte)0x9e, (byte)0xfd, 0x3}); 181 performTest(0x197f, new byte[]{(byte)0xff, 0x32}); 182 performTest(0xb8ad13, new byte[]{(byte)0x93, (byte)0xda, (byte)0xe2, 0x5}); 183 performTest(0x3c8d5db4, new byte[]{(byte)0xb4, (byte)0xbb, (byte)0xb5, (byte)0xe4, 0x3}); 184 performTest(0x7e4bdf7d, new byte[]{(byte)0xfd, (byte)0xbe, (byte)0xaf, (byte)0xf2, 0x7}); 185 performTest(0x1e8e23, new byte[]{(byte)0xa3, (byte)0x9c, 0x7a}); 186 performTest(0x1602, new byte[]{(byte)0x82, 0x2c}); 187 performTest(0xe2, new byte[]{(byte)0xe2, 0x1}); 188 performTest(0x38e9, new byte[]{(byte)0xe9, 0x71}); 189 performTest(0xbf8665, new byte[]{(byte)0xe5, (byte)0x8c, (byte)0xfe, 0x5}); 190 performTest(0x43, new byte[]{0x43}); 191 performTest(0xc9d96c, new byte[]{(byte)0xec, (byte)0xb2, (byte)0xa7, 0x6}); 192 performTest(0x4bd170, new byte[]{(byte)0xf0, (byte)0xa2, (byte)0xaf, 0x2}); 193 performTest(0x86c11b, new byte[]{(byte)0x9b, (byte)0x82, (byte)0x9b, 0x4}); 194 performTest(0x1a2611e7, new byte[]{(byte)0xe7, (byte)0xa3, (byte)0x98, (byte)0xd1, 0x1}); 195 performTest(0xff2f6a, new byte[]{(byte)0xea, (byte)0xde, (byte)0xfc, 0x7}); 196 performTest(0x6f051635, new byte[]{(byte)0xb5, (byte)0xac, (byte)0x94, (byte)0xf8, 0x6}); 197 performTest(0x75bf, new byte[]{(byte)0xbf, (byte)0xeb, 0x1}); 198 performTest(0xe8ce45, new byte[]{(byte)0xc5, (byte)0x9c, (byte)0xa3, 0x7}); 199 performTest(0x2946a1d8, new byte[]{(byte)0xd8, (byte)0xc3, (byte)0x9a, (byte)0xca, 0x2}); 200 performTest(0xe2, new byte[]{(byte)0xe2, 0x1}); 201 performTest(0x44ee, new byte[]{(byte)0xee, (byte)0x89, 0x1}); 202 performTest(0x447a, new byte[]{(byte)0xfa, (byte)0x88, 0x1}); 203 performTest(0x917, new byte[]{(byte)0x97, 0x12}); 204 performTest(0x25, new byte[]{0x25}); 205 performTest(0x52c2b8eb, new byte[]{(byte)0xeb, (byte)0xf1, (byte)0x8a, (byte)0x96, 0x5}); 206 performTest(0x17dabee4, new byte[]{(byte)0xe4, (byte)0xfd, (byte)0xea, (byte)0xbe, 0x1}); 207 performTest(0x9d6a, new byte[]{(byte)0xea, (byte)0xba, 0x2}); 208 performTest(0xc4b12d, new byte[]{(byte)0xad, (byte)0xe2, (byte)0x92, 0x6}); 209 performTest(0xc9561d, new byte[]{(byte)0x9d, (byte)0xac, (byte)0xa5, 0x6}); 210 performTest(0x88a7, new byte[]{(byte)0xa7, (byte)0x91, 0x2}); 211 performTest(0x527d8f7a, new byte[]{(byte)0xfa, (byte)0x9e, (byte)0xf6, (byte)0x93, 0x5}); 212 performTest(0x2c31, new byte[]{(byte)0xb1, 0x58}); 213 performTest(0x3b8c, new byte[]{(byte)0x8c, 0x77}); 214 performTest(0xc228, new byte[]{(byte)0xa8, (byte)0x84, 0x3}); 215 performTest(0xd730d3, new byte[]{(byte)0xd3, (byte)0xe1, (byte)0xdc, 0x6}); 216 } 217 218 @Test 219 public void testUleb128Failure() { 220 // result doesn't fit into a signed int 221 performFailureTest(new byte[]{(byte)0x80, (byte)0x80, (byte)0x80, (byte)0x80, 0x8, 0x11}); 222 performFailureTest(new byte[]{(byte)0xff, (byte)0xff, (byte)0xff, (byte)0xff, 0x8, 0x11}); 223 performFailureTest(new byte[]{(byte)0xff, (byte)0xff, (byte)0xff, (byte)0xff, 0x9, 0x11}); 224 performFailureTest(new byte[]{(byte)0xff, (byte)0xff, (byte)0xff, (byte)0xff, 0xa, 0x11}); 225 performFailureTest(new byte[]{(byte)0xff, (byte)0xff, (byte)0xff, (byte)0xff, 0xb, 0x11}); 226 performFailureTest(new byte[]{(byte)0xff, (byte)0xff, (byte)0xff, (byte)0xff, 0xc, 0x11}); 227 performFailureTest(new byte[]{(byte)0xff, (byte)0xff, (byte)0xff, (byte)0xff, 0xd, 0x11}); 228 performFailureTest(new byte[]{(byte)0xff, (byte)0xff, (byte)0xff, (byte)0xff, 0xe, 0x11}); 229 performFailureTest(new byte[]{(byte)0xff, (byte)0xff, (byte)0xff, (byte)0xff, 0xf, 0x11}); 230 performFailureTest(new byte[]{(byte)0x80, (byte)0x80, (byte)0x80, (byte)0x80, 0x18, 0x11}); 231 performFailureTest(new byte[]{(byte)0x80, (byte)0x80, (byte)0x80, (byte)0x80, 0x29, 0x11}); 232 performFailureTest(new byte[]{(byte)0x80, (byte)0x80, (byte)0x80, (byte)0x80, 0x7a, 0x11}); 233 234 // MSB of last byte is set 235 performFailureTest(new byte[]{(byte)0x80, (byte)0x80, (byte)0x80, (byte)0x80, (byte)0x80, 0x11}); 236 performFailureTest(new byte[]{(byte)0x80, (byte)0x80, (byte)0x80, (byte)0x80, (byte)0x81, 0x11}); 237 performFailureTest(new byte[]{(byte)0x80, (byte)0x80, (byte)0x80, (byte)0x80, (byte)0xa0, 0x11}); 238 performFailureTest(new byte[]{(byte)0x80, (byte)0x80, (byte)0x80, (byte)0x80, (byte)0xf0, 0x11}); 239 performFailureTest(new byte[]{(byte)0x80, (byte)0x80, (byte)0x80, (byte)0x80, (byte)0xff, 0x11}); 240 performFailureTest(new byte[]{(byte)0xff, (byte)0xff, (byte)0xff, (byte)0xff, (byte)0xff, 0x11}); 241 } 242 243 244 private void performTest(int expectedValue, byte[] buf) { 245 performTest(expectedValue, buf, buf.length); 246 } 247 248 private void performTest(int expectedValue, byte[] buf, int expectedLength) { 249 BaseDexBuffer dexBuf = new BaseDexBuffer(buf); 250 BaseDexReader reader = dexBuf.readerAt(0); 251 Assert.assertEquals(expectedValue, reader.readSmallUleb128()); 252 Assert.assertEquals(expectedLength, reader.getOffset()); 253 254 reader = dexBuf.readerAt(0); 255 reader.skipUleb128(); 256 Assert.assertEquals(expectedLength, reader.getOffset()); 257 258 reader = dexBuf.readerAt(0); 259 Assert.assertEquals(expectedLength, reader.peekSmallUleb128Size()); 260 } 261 262 private void performFailureTest(byte[] buf) { 263 BaseDexBuffer dexBuf = new BaseDexBuffer(buf); 264 BaseDexReader reader = dexBuf.readerAt(0); 265 try { 266 reader.peekSmallUleb128Size(); 267 Assert.fail(); 268 } catch (ExceptionWithContext ex) { 269 // expected exception 270 } 271 272 try { 273 reader.readSmallUleb128(); 274 Assert.fail(); 275 } catch (ExceptionWithContext ex) { 276 // expected exception 277 } 278 } 279 } 280
