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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #include "base/pickle.h"
6 
7 #include <limits.h>
8 #include <stddef.h>
9 #include <stdint.h>
10 
11 #include <memory>
12 #include <string>
13 
14 #include "base/macros.h"
15 #include "base/strings/string16.h"
16 #include "base/strings/utf_string_conversions.h"
17 #include "testing/gtest/include/gtest/gtest.h"
18 
19 namespace base {
20 
21 namespace {
22 
23 const bool testbool1 = false;
24 const bool testbool2 = true;
25 const int testint = 2093847192;
26 const long testlong = 1093847192;
27 const uint16_t testuint16 = 32123;
28 const uint32_t testuint32 = 1593847192;
29 const int64_t testint64 = -0x7E8CA9253104BDFCLL;
30 const uint64_t testuint64 = 0xCE8CA9253104BDF7ULL;
31 const float testfloat = 3.1415926935f;
32 const double testdouble = 2.71828182845904523;
33 const std::string teststring("Hello world");  // note non-aligned string length
34 const std::wstring testwstring(L"Hello, world");
35 const string16 teststring16(ASCIIToUTF16("Hello, world"));
36 const char testrawstring[] = "Hello new world"; // Test raw string writing
37 // Test raw char16 writing, assumes UTF16 encoding is ANSI for alpha chars.
38 const char16 testrawstring16[] = {'A', 'l', 'o', 'h', 'a', 0};
39 const char testdata[] = "AAA\0BBB\0";
40 const int testdatalen = arraysize(testdata) - 1;
41 
42 // checks that the results can be read correctly from the Pickle
VerifyResult(const Pickle & pickle)43 void VerifyResult(const Pickle& pickle) {
44   PickleIterator iter(pickle);
45 
46   bool outbool;
47   EXPECT_TRUE(iter.ReadBool(&outbool));
48   EXPECT_FALSE(outbool);
49   EXPECT_TRUE(iter.ReadBool(&outbool));
50   EXPECT_TRUE(outbool);
51 
52   int outint;
53   EXPECT_TRUE(iter.ReadInt(&outint));
54   EXPECT_EQ(testint, outint);
55 
56   long outlong;
57   EXPECT_TRUE(iter.ReadLong(&outlong));
58   EXPECT_EQ(testlong, outlong);
59 
60   uint16_t outuint16;
61   EXPECT_TRUE(iter.ReadUInt16(&outuint16));
62   EXPECT_EQ(testuint16, outuint16);
63 
64   uint32_t outuint32;
65   EXPECT_TRUE(iter.ReadUInt32(&outuint32));
66   EXPECT_EQ(testuint32, outuint32);
67 
68   int64_t outint64;
69   EXPECT_TRUE(iter.ReadInt64(&outint64));
70   EXPECT_EQ(testint64, outint64);
71 
72   uint64_t outuint64;
73   EXPECT_TRUE(iter.ReadUInt64(&outuint64));
74   EXPECT_EQ(testuint64, outuint64);
75 
76   float outfloat;
77   EXPECT_TRUE(iter.ReadFloat(&outfloat));
78   EXPECT_EQ(testfloat, outfloat);
79 
80   double outdouble;
81   EXPECT_TRUE(iter.ReadDouble(&outdouble));
82   EXPECT_EQ(testdouble, outdouble);
83 
84   std::string outstring;
85   EXPECT_TRUE(iter.ReadString(&outstring));
86   EXPECT_EQ(teststring, outstring);
87 
88   string16 outstring16;
89   EXPECT_TRUE(iter.ReadString16(&outstring16));
90   EXPECT_EQ(teststring16, outstring16);
91 
92   StringPiece outstringpiece;
93   EXPECT_TRUE(iter.ReadStringPiece(&outstringpiece));
94   EXPECT_EQ(testrawstring, outstringpiece);
95 
96   StringPiece16 outstringpiece16;
97   EXPECT_TRUE(iter.ReadStringPiece16(&outstringpiece16));
98   EXPECT_EQ(testrawstring16, outstringpiece16);
99 
100   const char* outdata;
101   int outdatalen;
102   EXPECT_TRUE(iter.ReadData(&outdata, &outdatalen));
103   EXPECT_EQ(testdatalen, outdatalen);
104   EXPECT_EQ(memcmp(testdata, outdata, outdatalen), 0);
105 
106   // reads past the end should fail
107   EXPECT_FALSE(iter.ReadInt(&outint));
108 }
109 
110 }  // namespace
111 
TEST(PickleTest,EncodeDecode)112 TEST(PickleTest, EncodeDecode) {
113   Pickle pickle;
114 
115   EXPECT_TRUE(pickle.WriteBool(testbool1));
116   EXPECT_TRUE(pickle.WriteBool(testbool2));
117   EXPECT_TRUE(pickle.WriteInt(testint));
118   EXPECT_TRUE(pickle.WriteLong(testlong));
119   EXPECT_TRUE(pickle.WriteUInt16(testuint16));
120   EXPECT_TRUE(pickle.WriteUInt32(testuint32));
121   EXPECT_TRUE(pickle.WriteInt64(testint64));
122   EXPECT_TRUE(pickle.WriteUInt64(testuint64));
123   EXPECT_TRUE(pickle.WriteFloat(testfloat));
124   EXPECT_TRUE(pickle.WriteDouble(testdouble));
125   EXPECT_TRUE(pickle.WriteString(teststring));
126   EXPECT_TRUE(pickle.WriteString16(teststring16));
127   EXPECT_TRUE(pickle.WriteString(testrawstring));
128   EXPECT_TRUE(pickle.WriteString16(testrawstring16));
129   EXPECT_TRUE(pickle.WriteData(testdata, testdatalen));
130   VerifyResult(pickle);
131 
132   // test copy constructor
133   Pickle pickle2(pickle);
134   VerifyResult(pickle2);
135 
136   // test operator=
137   Pickle pickle3;
138   pickle3 = pickle;
139   VerifyResult(pickle3);
140 }
141 
142 // Tests that reading/writing a long works correctly when the source process
143 // is 64-bit.  We rely on having both 32- and 64-bit trybots to validate both
144 // arms of the conditional in this test.
TEST(PickleTest,LongFrom64Bit)145 TEST(PickleTest, LongFrom64Bit) {
146   Pickle pickle;
147   // Under the hood long is always written as a 64-bit value, so simulate a
148   // 64-bit long even on 32-bit architectures by explicitly writing an int64_t.
149   EXPECT_TRUE(pickle.WriteInt64(testint64));
150 
151   PickleIterator iter(pickle);
152   long outlong;
153   if (sizeof(long) < sizeof(int64_t)) {
154     // ReadLong() should return false when the original written value can't be
155     // represented as a long.
156 #if GTEST_HAS_DEATH_TEST
157     EXPECT_DEATH(ignore_result(iter.ReadLong(&outlong)), "");
158 #endif
159   } else {
160     EXPECT_TRUE(iter.ReadLong(&outlong));
161     EXPECT_EQ(testint64, outlong);
162   }
163 }
164 
165 // Tests that we can handle really small buffers.
TEST(PickleTest,SmallBuffer)166 TEST(PickleTest, SmallBuffer) {
167   std::unique_ptr<char[]> buffer(new char[1]);
168 
169   // We should not touch the buffer.
170   Pickle pickle(buffer.get(), 1);
171 
172   PickleIterator iter(pickle);
173   int data;
174   EXPECT_FALSE(iter.ReadInt(&data));
175 }
176 
177 // Tests that we can handle improper headers.
TEST(PickleTest,BigSize)178 TEST(PickleTest, BigSize) {
179   int buffer[] = { 0x56035200, 25, 40, 50 };
180 
181   Pickle pickle(reinterpret_cast<char*>(buffer), sizeof(buffer));
182 
183   PickleIterator iter(pickle);
184   int data;
185   EXPECT_FALSE(iter.ReadInt(&data));
186 }
187 
TEST(PickleTest,UnalignedSize)188 TEST(PickleTest, UnalignedSize) {
189   int buffer[] = { 10, 25, 40, 50 };
190 
191   Pickle pickle(reinterpret_cast<char*>(buffer), sizeof(buffer));
192 
193   PickleIterator iter(pickle);
194   int data;
195   EXPECT_FALSE(iter.ReadInt(&data));
196 }
197 
TEST(PickleTest,ZeroLenStr)198 TEST(PickleTest, ZeroLenStr) {
199   Pickle pickle;
200   EXPECT_TRUE(pickle.WriteString(std::string()));
201 
202   PickleIterator iter(pickle);
203   std::string outstr;
204   EXPECT_TRUE(iter.ReadString(&outstr));
205   EXPECT_EQ("", outstr);
206 }
207 
TEST(PickleTest,ZeroLenStr16)208 TEST(PickleTest, ZeroLenStr16) {
209   Pickle pickle;
210   EXPECT_TRUE(pickle.WriteString16(string16()));
211 
212   PickleIterator iter(pickle);
213   std::string outstr;
214   EXPECT_TRUE(iter.ReadString(&outstr));
215   EXPECT_EQ("", outstr);
216 }
217 
TEST(PickleTest,BadLenStr)218 TEST(PickleTest, BadLenStr) {
219   Pickle pickle;
220   EXPECT_TRUE(pickle.WriteInt(-2));
221 
222   PickleIterator iter(pickle);
223   std::string outstr;
224   EXPECT_FALSE(iter.ReadString(&outstr));
225 }
226 
TEST(PickleTest,BadLenStr16)227 TEST(PickleTest, BadLenStr16) {
228   Pickle pickle;
229   EXPECT_TRUE(pickle.WriteInt(-1));
230 
231   PickleIterator iter(pickle);
232   string16 outstr;
233   EXPECT_FALSE(iter.ReadString16(&outstr));
234 }
235 
TEST(PickleTest,PeekNext)236 TEST(PickleTest, PeekNext) {
237   struct CustomHeader : base::Pickle::Header {
238     int cookies[10];
239   };
240 
241   Pickle pickle(sizeof(CustomHeader));
242 
243   EXPECT_TRUE(pickle.WriteString("Goooooooooooogle"));
244 
245   const char* pickle_data = static_cast<const char*>(pickle.data());
246 
247   size_t pickle_size;
248 
249   // Data range doesn't contain header
250   EXPECT_FALSE(Pickle::PeekNext(
251       sizeof(CustomHeader),
252       pickle_data,
253       pickle_data + sizeof(CustomHeader) - 1,
254       &pickle_size));
255 
256   // Data range contains header
257   EXPECT_TRUE(Pickle::PeekNext(
258       sizeof(CustomHeader),
259       pickle_data,
260       pickle_data + sizeof(CustomHeader),
261       &pickle_size));
262   EXPECT_EQ(pickle_size, pickle.size());
263 
264   // Data range contains header and some other data
265   EXPECT_TRUE(Pickle::PeekNext(
266       sizeof(CustomHeader),
267       pickle_data,
268       pickle_data + sizeof(CustomHeader) + 1,
269       &pickle_size));
270   EXPECT_EQ(pickle_size, pickle.size());
271 
272   // Data range contains full pickle
273   EXPECT_TRUE(Pickle::PeekNext(
274       sizeof(CustomHeader),
275       pickle_data,
276       pickle_data + pickle.size(),
277       &pickle_size));
278   EXPECT_EQ(pickle_size, pickle.size());
279 }
280 
TEST(PickleTest,PeekNextOverflow)281 TEST(PickleTest, PeekNextOverflow) {
282   struct CustomHeader : base::Pickle::Header {
283     int cookies[10];
284   };
285 
286   CustomHeader header;
287 
288   // Check if we can wrap around at all
289   if (sizeof(size_t) > sizeof(header.payload_size))
290     return;
291 
292   const char* pickle_data = reinterpret_cast<const char*>(&header);
293 
294   size_t pickle_size;
295 
296   // Wrapping around is detected and reported as maximum size_t value
297   header.payload_size = static_cast<uint32_t>(
298       1 - static_cast<int32_t>(sizeof(CustomHeader)));
299   EXPECT_TRUE(Pickle::PeekNext(
300       sizeof(CustomHeader),
301       pickle_data,
302       pickle_data + sizeof(CustomHeader),
303       &pickle_size));
304   EXPECT_EQ(pickle_size, std::numeric_limits<size_t>::max());
305 
306   // Ridiculous pickle sizes are fine (callers are supposed to
307   // verify them)
308   header.payload_size =
309       std::numeric_limits<uint32_t>::max() / 2 - sizeof(CustomHeader);
310   EXPECT_TRUE(Pickle::PeekNext(
311       sizeof(CustomHeader),
312       pickle_data,
313       pickle_data + sizeof(CustomHeader),
314       &pickle_size));
315   EXPECT_EQ(pickle_size, std::numeric_limits<uint32_t>::max() / 2);
316 }
317 
TEST(PickleTest,FindNext)318 TEST(PickleTest, FindNext) {
319   Pickle pickle;
320   EXPECT_TRUE(pickle.WriteInt(1));
321   EXPECT_TRUE(pickle.WriteString("Domo"));
322 
323   const char* start = reinterpret_cast<const char*>(pickle.data());
324   const char* end = start + pickle.size();
325 
326   EXPECT_TRUE(end == Pickle::FindNext(pickle.header_size_, start, end));
327   EXPECT_TRUE(NULL == Pickle::FindNext(pickle.header_size_, start, end - 1));
328   EXPECT_TRUE(end == Pickle::FindNext(pickle.header_size_, start, end + 1));
329 }
330 
TEST(PickleTest,FindNextWithIncompleteHeader)331 TEST(PickleTest, FindNextWithIncompleteHeader) {
332   size_t header_size = sizeof(Pickle::Header);
333   std::unique_ptr<char[]> buffer(new char[header_size - 1]);
334   memset(buffer.get(), 0x1, header_size - 1);
335 
336   const char* start = buffer.get();
337   const char* end = start + header_size - 1;
338 
339   EXPECT_TRUE(NULL == Pickle::FindNext(header_size, start, end));
340 }
341 
342 #if defined(COMPILER_MSVC)
343 #pragma warning(push)
344 #pragma warning(disable: 4146)
345 #endif
TEST(PickleTest,FindNextOverflow)346 TEST(PickleTest, FindNextOverflow) {
347   size_t header_size = sizeof(Pickle::Header);
348   size_t header_size2 = 2 * header_size;
349   size_t payload_received = 100;
350   std::unique_ptr<char[]> buffer(new char[header_size2 + payload_received]);
351   const char* start = buffer.get();
352   Pickle::Header* header = reinterpret_cast<Pickle::Header*>(buffer.get());
353   const char* end = start + header_size2 + payload_received;
354   // It is impossible to construct an overflow test otherwise.
355   if (sizeof(size_t) > sizeof(header->payload_size) ||
356       sizeof(uintptr_t) > sizeof(header->payload_size))
357     return;
358 
359   header->payload_size = -(reinterpret_cast<uintptr_t>(start) + header_size2);
360   EXPECT_TRUE(NULL == Pickle::FindNext(header_size2, start, end));
361 
362   header->payload_size = -header_size2;
363   EXPECT_TRUE(NULL == Pickle::FindNext(header_size2, start, end));
364 
365   header->payload_size = 0;
366   end = start + header_size;
367   EXPECT_TRUE(NULL == Pickle::FindNext(header_size2, start, end));
368 }
369 #if defined(COMPILER_MSVC)
370 #pragma warning(pop)
371 #endif
372 
TEST(PickleTest,GetReadPointerAndAdvance)373 TEST(PickleTest, GetReadPointerAndAdvance) {
374   Pickle pickle;
375 
376   PickleIterator iter(pickle);
377   EXPECT_FALSE(iter.GetReadPointerAndAdvance(1));
378 
379   EXPECT_TRUE(pickle.WriteInt(1));
380   EXPECT_TRUE(pickle.WriteInt(2));
381   int bytes = sizeof(int) * 2;
382 
383   EXPECT_TRUE(PickleIterator(pickle).GetReadPointerAndAdvance(0));
384   EXPECT_TRUE(PickleIterator(pickle).GetReadPointerAndAdvance(1));
385   EXPECT_FALSE(PickleIterator(pickle).GetReadPointerAndAdvance(-1));
386   EXPECT_TRUE(PickleIterator(pickle).GetReadPointerAndAdvance(bytes));
387   EXPECT_FALSE(PickleIterator(pickle).GetReadPointerAndAdvance(bytes + 1));
388   EXPECT_FALSE(PickleIterator(pickle).GetReadPointerAndAdvance(INT_MAX));
389   EXPECT_FALSE(PickleIterator(pickle).GetReadPointerAndAdvance(INT_MIN));
390 }
391 
TEST(PickleTest,Resize)392 TEST(PickleTest, Resize) {
393   size_t unit = Pickle::kPayloadUnit;
394   std::unique_ptr<char[]> data(new char[unit]);
395   char* data_ptr = data.get();
396   for (size_t i = 0; i < unit; i++)
397     data_ptr[i] = 'G';
398 
399   // construct a message that will be exactly the size of one payload unit,
400   // note that any data will have a 4-byte header indicating the size
401   const size_t payload_size_after_header = unit - sizeof(uint32_t);
402   Pickle pickle;
403   pickle.WriteData(
404       data_ptr, static_cast<int>(payload_size_after_header - sizeof(uint32_t)));
405   size_t cur_payload = payload_size_after_header;
406 
407   // note: we assume 'unit' is a power of 2
408   EXPECT_EQ(unit, pickle.capacity_after_header());
409   EXPECT_EQ(pickle.payload_size(), payload_size_after_header);
410 
411   // fill out a full page (noting data header)
412   pickle.WriteData(data_ptr, static_cast<int>(unit - sizeof(uint32_t)));
413   cur_payload += unit;
414   EXPECT_EQ(unit * 2, pickle.capacity_after_header());
415   EXPECT_EQ(cur_payload, pickle.payload_size());
416 
417   // one more byte should double the capacity
418   pickle.WriteData(data_ptr, 1);
419   cur_payload += 8;
420   EXPECT_EQ(unit * 4, pickle.capacity_after_header());
421   EXPECT_EQ(cur_payload, pickle.payload_size());
422 }
423 
424 namespace {
425 
426 struct CustomHeader : Pickle::Header {
427   int blah;
428 };
429 
430 }  // namespace
431 
TEST(PickleTest,HeaderPadding)432 TEST(PickleTest, HeaderPadding) {
433   const uint32_t kMagic = 0x12345678;
434 
435   Pickle pickle(sizeof(CustomHeader));
436   pickle.WriteInt(kMagic);
437 
438   // this should not overwrite the 'int' payload
439   pickle.headerT<CustomHeader>()->blah = 10;
440 
441   PickleIterator iter(pickle);
442   int result;
443   ASSERT_TRUE(iter.ReadInt(&result));
444 
445   EXPECT_EQ(static_cast<uint32_t>(result), kMagic);
446 }
447 
TEST(PickleTest,EqualsOperator)448 TEST(PickleTest, EqualsOperator) {
449   Pickle source;
450   source.WriteInt(1);
451 
452   Pickle copy_refs_source_buffer(static_cast<const char*>(source.data()),
453                                  source.size());
454   Pickle copy;
455   copy = copy_refs_source_buffer;
456   ASSERT_EQ(source.size(), copy.size());
457 }
458 
TEST(PickleTest,EvilLengths)459 TEST(PickleTest, EvilLengths) {
460   Pickle source;
461   std::string str(100000, 'A');
462   EXPECT_TRUE(source.WriteData(str.c_str(), 100000));
463   // ReadString16 used to have its read buffer length calculation wrong leading
464   // to out-of-bounds reading.
465   PickleIterator iter(source);
466   string16 str16;
467   EXPECT_FALSE(iter.ReadString16(&str16));
468 
469   // And check we didn't break ReadString16.
470   str16 = (wchar_t) 'A';
471   Pickle str16_pickle;
472   EXPECT_TRUE(str16_pickle.WriteString16(str16));
473   iter = PickleIterator(str16_pickle);
474   EXPECT_TRUE(iter.ReadString16(&str16));
475   EXPECT_EQ(1U, str16.length());
476 
477   // Check we don't fail in a length check with invalid String16 size.
478   // (1<<31) * sizeof(char16) == 0, so this is particularly evil.
479   Pickle bad_len;
480   EXPECT_TRUE(bad_len.WriteInt(1 << 31));
481   iter = PickleIterator(bad_len);
482   EXPECT_FALSE(iter.ReadString16(&str16));
483 }
484 
485 // Check we can write zero bytes of data and 'data' can be NULL.
TEST(PickleTest,ZeroLength)486 TEST(PickleTest, ZeroLength) {
487   Pickle pickle;
488   EXPECT_TRUE(pickle.WriteData(NULL, 0));
489 
490   PickleIterator iter(pickle);
491   const char* outdata;
492   int outdatalen;
493   EXPECT_TRUE(iter.ReadData(&outdata, &outdatalen));
494   EXPECT_EQ(0, outdatalen);
495   // We can't assert that outdata is NULL.
496 }
497 
498 // Check that ReadBytes works properly with an iterator initialized to NULL.
TEST(PickleTest,ReadBytes)499 TEST(PickleTest, ReadBytes) {
500   Pickle pickle;
501   int data = 0x7abcd;
502   EXPECT_TRUE(pickle.WriteBytes(&data, sizeof(data)));
503 
504   PickleIterator iter(pickle);
505   const char* outdata_char = NULL;
506   EXPECT_TRUE(iter.ReadBytes(&outdata_char, sizeof(data)));
507 
508   int outdata;
509   memcpy(&outdata, outdata_char, sizeof(outdata));
510   EXPECT_EQ(data, outdata);
511 }
512 
513 // Checks that when a pickle is deep-copied, the result is not larger than
514 // needed.
TEST(PickleTest,DeepCopyResize)515 TEST(PickleTest, DeepCopyResize) {
516   Pickle pickle;
517   while (pickle.capacity_after_header() != pickle.payload_size())
518     pickle.WriteBool(true);
519 
520   // Make a deep copy.
521   Pickle pickle2(pickle);
522 
523   // Check that there isn't any extraneous capacity.
524   EXPECT_EQ(pickle.capacity_after_header(), pickle2.capacity_after_header());
525 }
526 
527 namespace {
528 
529 // Publicly exposes the ClaimBytes interface for testing.
530 class TestingPickle : public Pickle {
531  public:
TestingPickle()532   TestingPickle() {}
533 
ClaimBytes(size_t num_bytes)534   void* ClaimBytes(size_t num_bytes) { return Pickle::ClaimBytes(num_bytes); }
535 };
536 
537 }  // namespace
538 
539 // Checks that claimed bytes are zero-initialized.
TEST(PickleTest,ClaimBytesInitialization)540 TEST(PickleTest, ClaimBytesInitialization) {
541   static const int kChunkSize = 64;
542   TestingPickle pickle;
543   const char* bytes = static_cast<const char*>(pickle.ClaimBytes(kChunkSize));
544   for (size_t i = 0; i < kChunkSize; ++i) {
545     EXPECT_EQ(0, bytes[i]);
546   }
547 }
548 
549 // Checks that ClaimBytes properly advances the write offset.
TEST(PickleTest,ClaimBytes)550 TEST(PickleTest, ClaimBytes) {
551   std::string data("Hello, world!");
552 
553   TestingPickle pickle;
554   pickle.WriteUInt32(data.size());
555   void* bytes = pickle.ClaimBytes(data.size());
556   pickle.WriteInt(42);
557   memcpy(bytes, data.data(), data.size());
558 
559   PickleIterator iter(pickle);
560   uint32_t out_data_length;
561   EXPECT_TRUE(iter.ReadUInt32(&out_data_length));
562   EXPECT_EQ(data.size(), out_data_length);
563 
564   const char* out_data = nullptr;
565   EXPECT_TRUE(iter.ReadBytes(&out_data, out_data_length));
566   EXPECT_EQ(data, std::string(out_data, out_data_length));
567 
568   int out_value;
569   EXPECT_TRUE(iter.ReadInt(&out_value));
570   EXPECT_EQ(42, out_value);
571 }
572 
573 // Checks that PickleSizer and Pickle agree on the size of things.
TEST(PickleTest,PickleSizer)574 TEST(PickleTest, PickleSizer) {
575   {
576     TestingPickle pickle;
577     base::PickleSizer sizer;
578     pickle.WriteBool(true);
579     sizer.AddBool();
580     EXPECT_EQ(sizer.payload_size(), pickle.payload_size());
581   }
582   {
583     TestingPickle pickle;
584     base::PickleSizer sizer;
585     pickle.WriteInt(42);
586     sizer.AddInt();
587     EXPECT_EQ(sizer.payload_size(), pickle.payload_size());
588   }
589   {
590     TestingPickle pickle;
591     base::PickleSizer sizer;
592     pickle.WriteLong(42);
593     sizer.AddLong();
594     EXPECT_EQ(sizer.payload_size(), pickle.payload_size());
595   }
596   {
597     TestingPickle pickle;
598     base::PickleSizer sizer;
599     pickle.WriteUInt16(42);
600     sizer.AddUInt16();
601     EXPECT_EQ(sizer.payload_size(), pickle.payload_size());
602   }
603   {
604     TestingPickle pickle;
605     base::PickleSizer sizer;
606     pickle.WriteUInt32(42);
607     sizer.AddUInt32();
608     EXPECT_EQ(sizer.payload_size(), pickle.payload_size());
609   }
610   {
611     TestingPickle pickle;
612     base::PickleSizer sizer;
613     pickle.WriteInt64(42);
614     sizer.AddInt64();
615     EXPECT_EQ(sizer.payload_size(), pickle.payload_size());
616   }
617   {
618     TestingPickle pickle;
619     base::PickleSizer sizer;
620     pickle.WriteUInt64(42);
621     sizer.AddUInt64();
622     EXPECT_EQ(sizer.payload_size(), pickle.payload_size());
623   }
624   {
625     TestingPickle pickle;
626     base::PickleSizer sizer;
627     pickle.WriteFloat(42.0f);
628     sizer.AddFloat();
629     EXPECT_EQ(sizer.payload_size(), pickle.payload_size());
630   }
631   {
632     TestingPickle pickle;
633     base::PickleSizer sizer;
634     pickle.WriteDouble(42.0);
635     sizer.AddDouble();
636     EXPECT_EQ(sizer.payload_size(), pickle.payload_size());
637   }
638   {
639     TestingPickle pickle;
640     base::PickleSizer sizer;
641     pickle.WriteString(teststring);
642     sizer.AddString(teststring);
643     EXPECT_EQ(sizer.payload_size(), pickle.payload_size());
644   }
645   {
646     TestingPickle pickle;
647     base::PickleSizer sizer;
648     pickle.WriteString16(teststring16);
649     sizer.AddString16(teststring16);
650     EXPECT_EQ(sizer.payload_size(), pickle.payload_size());
651   }
652   {
653     TestingPickle pickle;
654     base::PickleSizer sizer;
655     pickle.WriteData(testdata, testdatalen);
656     sizer.AddData(testdatalen);
657     EXPECT_EQ(sizer.payload_size(), pickle.payload_size());
658   }
659   {
660     TestingPickle pickle;
661     base::PickleSizer sizer;
662     pickle.WriteBytes(testdata, testdatalen);
663     sizer.AddBytes(testdatalen);
664     EXPECT_EQ(sizer.payload_size(), pickle.payload_size());
665   }
666 }
667 
668 }  // namespace base
669