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1 // Protocol Buffers - Google's data interchange format | |
2 // Copyright 2008 Google Inc. All rights reserved. | |
3 // https://developers.google.com/protocol-buffers/ | |
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 #import "GPBTestUtilities.h" | |
32 | |
33 #import "GPBCodedInputStream.h" | |
34 #import "GPBCodedOutputStream.h" | |
35 #import "GPBUnknownFieldSet_PackagePrivate.h" | |
36 #import "GPBUtilities_PackagePrivate.h" | |
37 #import "google/protobuf/Unittest.pbobjc.h" | |
38 | |
39 @interface CodedInputStreamTests : GPBTestCase | |
40 @end | |
41 | |
42 @implementation CodedInputStreamTests | |
43 | |
44 - (NSData*)bytes_with_sentinel:(int32_t)unused, ... { | |
45 va_list list; | |
46 va_start(list, unused); | |
47 | |
48 NSMutableData* values = [NSMutableData dataWithCapacity:0]; | |
49 int32_t i; | |
50 | |
51 while ((i = va_arg(list, int32_t)) != 256) { | |
52 NSAssert(i >= 0 && i < 256, @""); | |
53 uint8_t u = (uint8_t)i; | |
54 [values appendBytes:&u length:1]; | |
55 } | |
56 | |
57 va_end(list); | |
58 | |
59 return values; | |
60 } | |
61 | |
62 #define bytes(...) [self bytes_with_sentinel:0, __VA_ARGS__, 256] | |
63 | |
64 - (void)testDecodeZigZag { | |
65 XCTAssertEqual(0, GPBDecodeZigZag32(0)); | |
66 XCTAssertEqual(-1, GPBDecodeZigZag32(1)); | |
67 XCTAssertEqual(1, GPBDecodeZigZag32(2)); | |
68 XCTAssertEqual(-2, GPBDecodeZigZag32(3)); | |
69 XCTAssertEqual((int32_t)0x3FFFFFFF, GPBDecodeZigZag32(0x7FFFFFFE)); | |
70 XCTAssertEqual((int32_t)0xC0000000, GPBDecodeZigZag32(0x7FFFFFFF)); | |
71 XCTAssertEqual((int32_t)0x7FFFFFFF, GPBDecodeZigZag32(0xFFFFFFFE)); | |
72 XCTAssertEqual((int32_t)0x80000000, GPBDecodeZigZag32(0xFFFFFFFF)); | |
73 | |
74 XCTAssertEqual((int64_t)0, GPBDecodeZigZag64(0)); | |
75 XCTAssertEqual((int64_t)-1, GPBDecodeZigZag64(1)); | |
76 XCTAssertEqual((int64_t)1, GPBDecodeZigZag64(2)); | |
77 XCTAssertEqual((int64_t)-2, GPBDecodeZigZag64(3)); | |
78 XCTAssertEqual((int64_t)0x000000003FFFFFFFL, | |
79 GPBDecodeZigZag64(0x000000007FFFFFFEL)); | |
80 XCTAssertEqual((int64_t)0xFFFFFFFFC0000000L, | |
81 GPBDecodeZigZag64(0x000000007FFFFFFFL)); | |
82 XCTAssertEqual((int64_t)0x000000007FFFFFFFL, | |
83 GPBDecodeZigZag64(0x00000000FFFFFFFEL)); | |
84 XCTAssertEqual((int64_t)0xFFFFFFFF80000000L, | |
85 GPBDecodeZigZag64(0x00000000FFFFFFFFL)); | |
86 XCTAssertEqual((int64_t)0x7FFFFFFFFFFFFFFFL, | |
87 GPBDecodeZigZag64(0xFFFFFFFFFFFFFFFEL)); | |
88 XCTAssertEqual((int64_t)0x8000000000000000L, | |
89 GPBDecodeZigZag64(0xFFFFFFFFFFFFFFFFL)); | |
90 } | |
91 | |
92 - (void)assertReadVarint:(NSData*)data value:(int64_t)value { | |
93 { | |
94 GPBCodedInputStream* input = [GPBCodedInputStream streamWithData:data]; | |
95 XCTAssertEqual((int32_t)value, [input readInt32]); | |
96 } | |
97 { | |
98 GPBCodedInputStream* input = [GPBCodedInputStream streamWithData:data]; | |
99 XCTAssertEqual(value, [input readInt64]); | |
100 } | |
101 } | |
102 | |
103 - (void)assertReadLittleEndian32:(NSData*)data value:(int32_t)value { | |
104 GPBCodedInputStream* input = [GPBCodedInputStream streamWithData:data]; | |
105 XCTAssertEqual(value, [input readSFixed32]); | |
106 } | |
107 | |
108 - (void)assertReadLittleEndian64:(NSData*)data value:(int64_t)value { | |
109 GPBCodedInputStream* input = [GPBCodedInputStream streamWithData:data]; | |
110 XCTAssertEqual(value, [input readSFixed64]); | |
111 } | |
112 | |
113 - (void)assertReadVarintFailure:(NSData*)data { | |
114 { | |
115 GPBCodedInputStream* input = [GPBCodedInputStream streamWithData:data]; | |
116 XCTAssertThrows([input readInt32]); | |
117 } | |
118 { | |
119 GPBCodedInputStream* input = [GPBCodedInputStream streamWithData:data]; | |
120 XCTAssertThrows([input readInt64]); | |
121 } | |
122 } | |
123 | |
124 - (void)testBytes { | |
125 NSData* data = bytes(0xa2, 0x74); | |
126 XCTAssertEqual(data.length, (NSUInteger)2); | |
127 XCTAssertEqual(((uint8_t*)data.bytes)[0], (uint8_t)0xa2); | |
128 XCTAssertEqual(((uint8_t*)data.bytes)[1], (uint8_t)0x74); | |
129 } | |
130 | |
131 - (void)testReadVarint { | |
132 [self assertReadVarint:bytes(0x00) value:0]; | |
133 [self assertReadVarint:bytes(0x01) value:1]; | |
134 [self assertReadVarint:bytes(0x7f) value:127]; | |
135 // 14882 | |
136 [self assertReadVarint:bytes(0xa2, 0x74) value:(0x22 << 0) | (0x74 << 7)]; | |
137 // 2961488830 | |
138 [self assertReadVarint:bytes(0xbe, 0xf7, 0x92, 0x84, 0x0b) | |
139 value:(0x3e << 0) | (0x77 << 7) | (0x12 << 14) | | |
140 (0x04 << 21) | (0x0bLL << 28)]; | |
141 | |
142 // 64-bit | |
143 // 7256456126 | |
144 [self assertReadVarint:bytes(0xbe, 0xf7, 0x92, 0x84, 0x1b) | |
145 value:(0x3e << 0) | (0x77 << 7) | (0x12 << 14) | | |
146 (0x04 << 21) | (0x1bLL << 28)]; | |
147 // 41256202580718336 | |
148 [self assertReadVarint:bytes(0x80, 0xe6, 0xeb, 0x9c, 0xc3, 0xc9, 0xa4, 0x49) | |
149 value:(0x00 << 0) | (0x66 << 7) | (0x6b << 14) | | |
150 (0x1c << 21) | (0x43LL << 28) | (0x49LL << 35) | | |
151 (0x24LL << 42) | (0x49LL << 49)]; | |
152 // 11964378330978735131 | |
153 [self | |
154 assertReadVarint:bytes(0x9b, 0xa8, 0xf9, 0xc2, 0xbb, 0xd6, 0x80, 0x85, | |
155 0xa6, 0x01) | |
156 value:(0x1b << 0) | (0x28 << 7) | (0x79 << 14) | (0x42 << 21) | | |
157 (0x3bLL << 28) | (0x56LL << 35) | (0x00LL << 42) | | |
158 (0x05LL << 49) | (0x26LL << 56) | (0x01LL << 63)]; | |
159 | |
160 // Failures | |
161 [self assertReadVarintFailure:bytes(0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, | |
162 0x80, 0x80, 0x80, 0x00)]; | |
163 [self assertReadVarintFailure:bytes(0x80)]; | |
164 } | |
165 | |
166 - (void)testReadLittleEndian { | |
167 [self assertReadLittleEndian32:bytes(0x78, 0x56, 0x34, 0x12) | |
168 value:0x12345678]; | |
169 [self assertReadLittleEndian32:bytes(0xf0, 0xde, 0xbc, 0x9a) | |
170 value:0x9abcdef0]; | |
171 | |
172 [self assertReadLittleEndian64:bytes(0xf0, 0xde, 0xbc, 0x9a, 0x78, 0x56, 0x34, | |
173 0x12) | |
174 value:0x123456789abcdef0LL]; | |
175 [self assertReadLittleEndian64:bytes(0x78, 0x56, 0x34, 0x12, 0xf0, 0xde, 0xbc, | |
176 0x9a) | |
177 value:0x9abcdef012345678LL]; | |
178 } | |
179 | |
180 - (void)testReadWholeMessage { | |
181 TestAllTypes* message = [self allSetRepeatedCount:kGPBDefaultRepeatCount]; | |
182 | |
183 NSData* rawBytes = message.data; | |
184 XCTAssertEqual(message.serializedSize, (size_t)rawBytes.length); | |
185 | |
186 TestAllTypes* message2 = | |
187 [TestAllTypes parseFromData:rawBytes extensionRegistry:nil error:NULL]; | |
188 [self assertAllFieldsSet:message2 repeatedCount:kGPBDefaultRepeatCount]; | |
189 } | |
190 | |
191 - (void)testSkipWholeMessage { | |
192 TestAllTypes* message = [self allSetRepeatedCount:kGPBDefaultRepeatCount]; | |
193 NSData* rawBytes = message.data; | |
194 | |
195 // Create two parallel inputs. Parse one as unknown fields while using | |
196 // skipField() to skip each field on the other. Expect the same tags. | |
197 GPBCodedInputStream* input1 = [GPBCodedInputStream streamWithData:rawBytes]; | |
198 GPBCodedInputStream* input2 = [GPBCodedInputStream streamWithData:rawBytes]; | |
199 GPBUnknownFieldSet* unknownFields = | |
200 [[[GPBUnknownFieldSet alloc] init] autorelease]; | |
201 | |
202 while (YES) { | |
203 int32_t tag = [input1 readTag]; | |
204 XCTAssertEqual(tag, [input2 readTag]); | |
205 if (tag == 0) { | |
206 break; | |
207 } | |
208 [unknownFields mergeFieldFrom:tag input:input1]; | |
209 [input2 skipField:tag]; | |
210 } | |
211 } | |
212 | |
213 - (void)testReadHugeBlob { | |
214 // Allocate and initialize a 1MB blob. | |
215 NSMutableData* blob = [NSMutableData dataWithLength:1 << 20]; | |
216 for (NSUInteger i = 0; i < blob.length; i++) { | |
217 ((uint8_t*)blob.mutableBytes)[i] = (uint8_t)i; | |
218 } | |
219 | |
220 // Make a message containing it. | |
221 TestAllTypes* message = [TestAllTypes message]; | |
222 [self setAllFields:message repeatedCount:kGPBDefaultRepeatCount]; | |
223 [message setOptionalBytes:blob]; | |
224 | |
225 // Serialize and parse it. Make sure to parse from an InputStream, not | |
226 // directly from a ByteString, so that CodedInputStream uses buffered | |
227 // reading. | |
228 GPBCodedInputStream* stream = | |
229 [GPBCodedInputStream streamWithData:message.data]; | |
230 TestAllTypes* message2 = [TestAllTypes parseFromCodedInputStream:stream | |
231 extensionRegistry:nil | |
232 error:NULL]; | |
233 | |
234 XCTAssertEqualObjects(message.optionalBytes, message2.optionalBytes); | |
235 | |
236 // Make sure all the other fields were parsed correctly. | |
237 TestAllTypes* message3 = [[message2 copy] autorelease]; | |
238 TestAllTypes* types = [self allSetRepeatedCount:kGPBDefaultRepeatCount]; | |
239 NSData* data = [types optionalBytes]; | |
240 [message3 setOptionalBytes:data]; | |
241 | |
242 [self assertAllFieldsSet:message3 repeatedCount:kGPBDefaultRepeatCount]; | |
243 } | |
244 | |
245 - (void)testReadMaliciouslyLargeBlob { | |
246 NSOutputStream* rawOutput = [NSOutputStream outputStreamToMemory]; | |
247 GPBCodedOutputStream* output = | |
248 [GPBCodedOutputStream streamWithOutputStream:rawOutput]; | |
249 | |
250 int32_t tag = GPBWireFormatMakeTag(1, GPBWireFormatLengthDelimited); | |
251 [output writeRawVarint32:tag]; | |
252 [output writeRawVarint32:0x7FFFFFFF]; | |
253 uint8_t bytes[32] = {0}; | |
254 [output writeRawData:[NSData dataWithBytes:bytes length:32]]; | |
255 [output flush]; | |
256 | |
257 NSData* data = | |
258 [rawOutput propertyForKey:NSStreamDataWrittenToMemoryStreamKey]; | |
259 GPBCodedInputStream* input = | |
260 [GPBCodedInputStream streamWithData:[NSMutableData dataWithData:data]]; | |
261 XCTAssertEqual(tag, [input readTag]); | |
262 | |
263 XCTAssertThrows([input readBytes]); | |
264 } | |
265 | |
266 // Verifies fix for b/10315336. | |
267 - (void)testReadMalformedString { | |
268 NSOutputStream* rawOutput = [NSOutputStream outputStreamToMemory]; | |
269 GPBCodedOutputStream* output = | |
270 [GPBCodedOutputStream streamWithOutputStream:rawOutput]; | |
271 | |
272 int32_t tag = GPBWireFormatMakeTag(TestAllTypes_FieldNumber_DefaultString, | |
273 GPBWireFormatLengthDelimited); | |
274 [output writeRawVarint32:tag]; | |
275 [output writeRawVarint32:5]; | |
276 // Create an invalid utf-8 byte array. | |
277 uint8_t bytes[5] = {0xc2, 0xf2}; | |
278 [output writeRawData:[NSData dataWithBytes:bytes length:sizeof(bytes)]]; | |
279 [output flush]; | |
280 | |
281 NSData* data = | |
282 [rawOutput propertyForKey:NSStreamDataWrittenToMemoryStreamKey]; | |
283 GPBCodedInputStream* input = [GPBCodedInputStream streamWithData:data]; | |
284 TestAllTypes* message = [TestAllTypes parseFromCodedInputStream:input | |
285 extensionRegistry:nil | |
286 error:NULL]; | |
287 // Make sure we can read string properties twice without crashing. | |
288 XCTAssertEqual([message.defaultString length], (NSUInteger)0); | |
289 XCTAssertEqualObjects(@"", message.defaultString); | |
290 } | |
291 | |
292 @end | |
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