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| 1 // Protocol Buffers - Google's data interchange format | |
| 2 // Copyright 2008 Google Inc. All rights reserved. | |
| 3 // http://code.google.com/p/protobuf/ | |
| 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 package com.google.protobuf.test; | |
| 32 import com.google.protobuf.*; | |
| 33 | |
| 34 import protobuf_unittest.UnittestProto.SparseEnumMessage; | |
| 35 import protobuf_unittest.UnittestProto.TestAllTypes; | |
| 36 import protobuf_unittest.UnittestProto.TestPackedTypes; | |
| 37 import protobuf_unittest.UnittestProto.TestSparseEnum; | |
| 38 | |
| 39 import junit.framework.TestCase; | |
| 40 | |
| 41 import java.io.ByteArrayOutputStream; | |
| 42 import java.util.ArrayList; | |
| 43 import java.util.List; | |
| 44 | |
| 45 /** | |
| 46 * Unit test for {@link CodedOutputStream}. | |
| 47 * | |
| 48 * @author kenton@google.com Kenton Varda | |
| 49 */ | |
| 50 public class CodedOutputStreamTest extends TestCase { | |
| 51 /** | |
| 52 * Helper to construct a byte array from a bunch of bytes. The inputs are | |
| 53 * actually ints so that I can use hex notation and not get stupid errors | |
| 54 * about precision. | |
| 55 */ | |
| 56 private byte[] bytes(int... bytesAsInts) { | |
| 57 byte[] bytes = new byte[bytesAsInts.length]; | |
| 58 for (int i = 0; i < bytesAsInts.length; i++) { | |
| 59 bytes[i] = (byte) bytesAsInts[i]; | |
| 60 } | |
| 61 return bytes; | |
| 62 } | |
| 63 | |
| 64 /** Arrays.asList() does not work with arrays of primitives. :( */ | |
| 65 private List<Byte> toList(byte[] bytes) { | |
| 66 List<Byte> result = new ArrayList<Byte>(); | |
| 67 for (byte b : bytes) { | |
| 68 result.add(b); | |
| 69 } | |
| 70 return result; | |
| 71 } | |
| 72 | |
| 73 private void assertEqualBytes(byte[] a, byte[] b) { | |
| 74 assertEquals(toList(a), toList(b)); | |
| 75 } | |
| 76 | |
| 77 /** | |
| 78 * Writes the given value using writeRawVarint32() and writeRawVarint64() and | |
| 79 * checks that the result matches the given bytes. | |
| 80 */ | |
| 81 private void assertWriteVarint(byte[] data, long value) throws Exception { | |
| 82 // Only do 32-bit write if the value fits in 32 bits. | |
| 83 if ((value >>> 32) == 0) { | |
| 84 ByteArrayOutputStream rawOutput = new ByteArrayOutputStream(); | |
| 85 CodedOutputStream output = CodedOutputStream.newInstance(rawOutput); | |
| 86 output.writeRawVarint32((int) value); | |
| 87 output.flush(); | |
| 88 assertEqualBytes(data, rawOutput.toByteArray()); | |
| 89 | |
| 90 // Also try computing size. | |
| 91 assertEquals(data.length, | |
| 92 CodedOutputStream.computeRawVarint32Size((int) value)); | |
| 93 } | |
| 94 | |
| 95 { | |
| 96 ByteArrayOutputStream rawOutput = new ByteArrayOutputStream(); | |
| 97 CodedOutputStream output = CodedOutputStream.newInstance(rawOutput); | |
| 98 output.writeRawVarint64(value); | |
| 99 output.flush(); | |
| 100 assertEqualBytes(data, rawOutput.toByteArray()); | |
| 101 | |
| 102 // Also try computing size. | |
| 103 assertEquals(data.length, | |
| 104 CodedOutputStream.computeRawVarint64Size(value)); | |
| 105 } | |
| 106 | |
| 107 // Try different block sizes. | |
| 108 for (int blockSize = 1; blockSize <= 16; blockSize *= 2) { | |
| 109 // Only do 32-bit write if the value fits in 32 bits. | |
| 110 if ((value >>> 32) == 0) { | |
| 111 ByteArrayOutputStream rawOutput = new ByteArrayOutputStream(); | |
| 112 CodedOutputStream output = | |
| 113 CodedOutputStream.newInstance(rawOutput, blockSize); | |
| 114 output.writeRawVarint32((int) value); | |
| 115 output.flush(); | |
| 116 assertEqualBytes(data, rawOutput.toByteArray()); | |
| 117 } | |
| 118 | |
| 119 { | |
| 120 ByteArrayOutputStream rawOutput = new ByteArrayOutputStream(); | |
| 121 CodedOutputStream output = | |
| 122 CodedOutputStream.newInstance(rawOutput, blockSize); | |
| 123 output.writeRawVarint64(value); | |
| 124 output.flush(); | |
| 125 assertEqualBytes(data, rawOutput.toByteArray()); | |
| 126 } | |
| 127 } | |
| 128 } | |
| 129 | |
| 130 /** Tests writeRawVarint32() and writeRawVarint64(). */ | |
| 131 public void testWriteVarint() throws Exception { | |
| 132 assertWriteVarint(bytes(0x00), 0); | |
| 133 assertWriteVarint(bytes(0x01), 1); | |
| 134 assertWriteVarint(bytes(0x7f), 127); | |
| 135 // 14882 | |
| 136 assertWriteVarint(bytes(0xa2, 0x74), (0x22 << 0) | (0x74 << 7)); | |
| 137 // 2961488830 | |
| 138 assertWriteVarint(bytes(0xbe, 0xf7, 0x92, 0x84, 0x0b), | |
| 139 (0x3e << 0) | (0x77 << 7) | (0x12 << 14) | (0x04 << 21) | | |
| 140 (0x0bL << 28)); | |
| 141 | |
| 142 // 64-bit | |
| 143 // 7256456126 | |
| 144 assertWriteVarint(bytes(0xbe, 0xf7, 0x92, 0x84, 0x1b), | |
| 145 (0x3e << 0) | (0x77 << 7) | (0x12 << 14) | (0x04 << 21) | | |
| 146 (0x1bL << 28)); | |
| 147 // 41256202580718336 | |
| 148 assertWriteVarint( | |
| 149 bytes(0x80, 0xe6, 0xeb, 0x9c, 0xc3, 0xc9, 0xa4, 0x49), | |
| 150 (0x00 << 0) | (0x66 << 7) | (0x6b << 14) | (0x1c << 21) | | |
| 151 (0x43L << 28) | (0x49L << 35) | (0x24L << 42) | (0x49L << 49)); | |
| 152 // 11964378330978735131 | |
| 153 assertWriteVarint( | |
| 154 bytes(0x9b, 0xa8, 0xf9, 0xc2, 0xbb, 0xd6, 0x80, 0x85, 0xa6, 0x01), | |
| 155 (0x1b << 0) | (0x28 << 7) | (0x79 << 14) | (0x42 << 21) | | |
| 156 (0x3bL << 28) | (0x56L << 35) | (0x00L << 42) | | |
| 157 (0x05L << 49) | (0x26L << 56) | (0x01L << 63)); | |
| 158 } | |
| 159 | |
| 160 /** | |
| 161 * Parses the given bytes using writeRawLittleEndian32() and checks | |
| 162 * that the result matches the given value. | |
| 163 */ | |
| 164 private void assertWriteLittleEndian32(byte[] data, int value) | |
| 165 throws Exception { | |
| 166 ByteArrayOutputStream rawOutput = new ByteArrayOutputStream(); | |
| 167 CodedOutputStream output = CodedOutputStream.newInstance(rawOutput); | |
| 168 output.writeRawLittleEndian32(value); | |
| 169 output.flush(); | |
| 170 assertEqualBytes(data, rawOutput.toByteArray()); | |
| 171 | |
| 172 // Try different block sizes. | |
| 173 for (int blockSize = 1; blockSize <= 16; blockSize *= 2) { | |
| 174 rawOutput = new ByteArrayOutputStream(); | |
| 175 output = CodedOutputStream.newInstance(rawOutput, blockSize); | |
| 176 output.writeRawLittleEndian32(value); | |
| 177 output.flush(); | |
| 178 assertEqualBytes(data, rawOutput.toByteArray()); | |
| 179 } | |
| 180 } | |
| 181 | |
| 182 /** | |
| 183 * Parses the given bytes using writeRawLittleEndian64() and checks | |
| 184 * that the result matches the given value. | |
| 185 */ | |
| 186 private void assertWriteLittleEndian64(byte[] data, long value) | |
| 187 throws Exception { | |
| 188 ByteArrayOutputStream rawOutput = new ByteArrayOutputStream(); | |
| 189 CodedOutputStream output = CodedOutputStream.newInstance(rawOutput); | |
| 190 output.writeRawLittleEndian64(value); | |
| 191 output.flush(); | |
| 192 assertEqualBytes(data, rawOutput.toByteArray()); | |
| 193 | |
| 194 // Try different block sizes. | |
| 195 for (int blockSize = 1; blockSize <= 16; blockSize *= 2) { | |
| 196 rawOutput = new ByteArrayOutputStream(); | |
| 197 output = CodedOutputStream.newInstance(rawOutput, blockSize); | |
| 198 output.writeRawLittleEndian64(value); | |
| 199 output.flush(); | |
| 200 assertEqualBytes(data, rawOutput.toByteArray()); | |
| 201 } | |
| 202 } | |
| 203 | |
| 204 /** Tests writeRawLittleEndian32() and writeRawLittleEndian64(). */ | |
| 205 public void testWriteLittleEndian() throws Exception { | |
| 206 assertWriteLittleEndian32(bytes(0x78, 0x56, 0x34, 0x12), 0x12345678); | |
| 207 assertWriteLittleEndian32(bytes(0xf0, 0xde, 0xbc, 0x9a), 0x9abcdef0); | |
| 208 | |
| 209 assertWriteLittleEndian64( | |
| 210 bytes(0xf0, 0xde, 0xbc, 0x9a, 0x78, 0x56, 0x34, 0x12), | |
| 211 0x123456789abcdef0L); | |
| 212 assertWriteLittleEndian64( | |
| 213 bytes(0x78, 0x56, 0x34, 0x12, 0xf0, 0xde, 0xbc, 0x9a), | |
| 214 0x9abcdef012345678L); | |
| 215 } | |
| 216 | |
| 217 /** Test encodeZigZag32() and encodeZigZag64(). */ | |
| 218 public void testEncodeZigZag() throws Exception { | |
| 219 assertEquals(0, CodedOutputStream.encodeZigZag32( 0)); | |
| 220 assertEquals(1, CodedOutputStream.encodeZigZag32(-1)); | |
| 221 assertEquals(2, CodedOutputStream.encodeZigZag32( 1)); | |
| 222 assertEquals(3, CodedOutputStream.encodeZigZag32(-2)); | |
| 223 assertEquals(0x7FFFFFFE, CodedOutputStream.encodeZigZag32(0x3FFFFFFF)); | |
| 224 assertEquals(0x7FFFFFFF, CodedOutputStream.encodeZigZag32(0xC0000000)); | |
| 225 assertEquals(0xFFFFFFFE, CodedOutputStream.encodeZigZag32(0x7FFFFFFF)); | |
| 226 assertEquals(0xFFFFFFFF, CodedOutputStream.encodeZigZag32(0x80000000)); | |
| 227 | |
| 228 assertEquals(0, CodedOutputStream.encodeZigZag64( 0)); | |
| 229 assertEquals(1, CodedOutputStream.encodeZigZag64(-1)); | |
| 230 assertEquals(2, CodedOutputStream.encodeZigZag64( 1)); | |
| 231 assertEquals(3, CodedOutputStream.encodeZigZag64(-2)); | |
| 232 assertEquals(0x000000007FFFFFFEL, | |
| 233 CodedOutputStream.encodeZigZag64(0x000000003FFFFFFFL)); | |
| 234 assertEquals(0x000000007FFFFFFFL, | |
| 235 CodedOutputStream.encodeZigZag64(0xFFFFFFFFC0000000L)); | |
| 236 assertEquals(0x00000000FFFFFFFEL, | |
| 237 CodedOutputStream.encodeZigZag64(0x000000007FFFFFFFL)); | |
| 238 assertEquals(0x00000000FFFFFFFFL, | |
| 239 CodedOutputStream.encodeZigZag64(0xFFFFFFFF80000000L)); | |
| 240 assertEquals(0xFFFFFFFFFFFFFFFEL, | |
| 241 CodedOutputStream.encodeZigZag64(0x7FFFFFFFFFFFFFFFL)); | |
| 242 assertEquals(0xFFFFFFFFFFFFFFFFL, | |
| 243 CodedOutputStream.encodeZigZag64(0x8000000000000000L)); | |
| 244 | |
| 245 // Some easier-to-verify round-trip tests. The inputs (other than 0, 1, -1) | |
| 246 // were chosen semi-randomly via keyboard bashing. | |
| 247 assertEquals(0, | |
| 248 CodedOutputStream.encodeZigZag32(CodedInputStream.decodeZigZag32(0))); | |
| 249 assertEquals(1, | |
| 250 CodedOutputStream.encodeZigZag32(CodedInputStream.decodeZigZag32(1))); | |
| 251 assertEquals(-1, | |
| 252 CodedOutputStream.encodeZigZag32(CodedInputStream.decodeZigZag32(-1))); | |
| 253 assertEquals(14927, | |
| 254 CodedOutputStream.encodeZigZag32(CodedInputStream.decodeZigZag32(14927))); | |
| 255 assertEquals(-3612, | |
| 256 CodedOutputStream.encodeZigZag32(CodedInputStream.decodeZigZag32(-3612))); | |
| 257 | |
| 258 assertEquals(0, | |
| 259 CodedOutputStream.encodeZigZag64(CodedInputStream.decodeZigZag64(0))); | |
| 260 assertEquals(1, | |
| 261 CodedOutputStream.encodeZigZag64(CodedInputStream.decodeZigZag64(1))); | |
| 262 assertEquals(-1, | |
| 263 CodedOutputStream.encodeZigZag64(CodedInputStream.decodeZigZag64(-1))); | |
| 264 assertEquals(14927, | |
| 265 CodedOutputStream.encodeZigZag64(CodedInputStream.decodeZigZag64(14927))); | |
| 266 assertEquals(-3612, | |
| 267 CodedOutputStream.encodeZigZag64(CodedInputStream.decodeZigZag64(-3612))); | |
| 268 | |
| 269 assertEquals(856912304801416L, | |
| 270 CodedOutputStream.encodeZigZag64( | |
| 271 CodedInputStream.decodeZigZag64( | |
| 272 856912304801416L))); | |
| 273 assertEquals(-75123905439571256L, | |
| 274 CodedOutputStream.encodeZigZag64( | |
| 275 CodedInputStream.decodeZigZag64( | |
| 276 -75123905439571256L))); | |
| 277 } | |
| 278 | |
| 279 /** Tests writing a whole message with every field type. */ | |
| 280 public void testWriteWholeMessage() throws Exception { | |
| 281 TestAllTypes message = TestUtil.getAllSet(); | |
| 282 | |
| 283 byte[] rawBytes = message.toByteArray(); | |
| 284 assertEqualBytes(TestUtil.getGoldenMessage().toByteArray(), rawBytes); | |
| 285 | |
| 286 // Try different block sizes. | |
| 287 for (int blockSize = 1; blockSize < 256; blockSize *= 2) { | |
| 288 ByteArrayOutputStream rawOutput = new ByteArrayOutputStream(); | |
| 289 CodedOutputStream output = | |
| 290 CodedOutputStream.newInstance(rawOutput, blockSize); | |
| 291 message.writeTo(output); | |
| 292 output.flush(); | |
| 293 assertEqualBytes(rawBytes, rawOutput.toByteArray()); | |
| 294 } | |
| 295 } | |
| 296 | |
| 297 /** Tests writing a whole message with every packed field type. Ensures the | |
| 298 * wire format of packed fields is compatible with C++. */ | |
| 299 public void testWriteWholePackedFieldsMessage() throws Exception { | |
| 300 TestPackedTypes message = TestUtil.getPackedSet(); | |
| 301 | |
| 302 byte[] rawBytes = message.toByteArray(); | |
| 303 assertEqualBytes(TestUtil.getGoldenPackedFieldsMessage().toByteArray(), | |
| 304 rawBytes); | |
| 305 } | |
| 306 | |
| 307 /** Test writing a message containing a negative enum value. This used to | |
| 308 * fail because the size was not properly computed as a sign-extended varint. | |
| 309 */ | |
| 310 public void testWriteMessageWithNegativeEnumValue() throws Exception { | |
| 311 SparseEnumMessage message = SparseEnumMessage.newBuilder() | |
| 312 .setSparseEnum(TestSparseEnum.SPARSE_E) .build(); | |
| 313 assertTrue(message.getSparseEnum().getNumber() < 0); | |
| 314 byte[] rawBytes = message.toByteArray(); | |
| 315 SparseEnumMessage message2 = SparseEnumMessage.parseFrom(rawBytes); | |
| 316 assertEquals(TestSparseEnum.SPARSE_E, message2.getSparseEnum()); | |
| 317 } | |
| 318 } | |
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Chromium Code Reviews
Issue 2600753002:
Reverts third_party/protobuf: Update to HEAD (f52e188fe4) (Closed)
