1// Protocol Buffers - Google's data interchange format
2// Copyright 2008 Google Inc.  All rights reserved.
3// http://code.google.com/p/protobuf/
4//
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6// modification, are permitted provided that the following conditions are
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8//
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10// notice, this list of conditions and the following disclaimer.
11//     * Redistributions in binary form must reproduce the above
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13// in the documentation and/or other materials provided with the
14// distribution.
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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,
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30
31// Author: kenton@google.com (Kenton Varda)
32//  Based on original Protocol Buffers design by
33//  Sanjay Ghemawat, Jeff Dean, and others.
34
35#include <google/protobuf/message.h>
36
37#include <sys/types.h>
38#include <sys/stat.h>
39#include <fcntl.h>
40#ifdef _MSC_VER
41#include <io.h>
42#else
43#include <unistd.h>
44#endif
45#include <sstream>
46#include <fstream>
47
48#include <google/protobuf/stubs/common.h>
49#include <google/protobuf/io/zero_copy_stream_impl.h>
50#include <google/protobuf/io/coded_stream.h>
51#include <google/protobuf/descriptor.h>
52#include <google/protobuf/descriptor.pb.h>
53#include <google/protobuf/unittest.pb.h>
54#include <google/protobuf/test_util.h>
55
56#include <google/protobuf/testing/googletest.h>
57#include <gtest/gtest.h>
58
59namespace google {
60namespace protobuf {
61
62#ifndef O_BINARY
63#ifdef _O_BINARY
64#define O_BINARY _O_BINARY
65#else
66#define O_BINARY 0     // If this isn't defined, the platform doesn't need it.
67#endif
68#endif
69
70TEST(MessageTest, SerializeHelpers) {
71  // TODO(kenton):  Test more helpers?  They're all two-liners so it seems
72  //   like a waste of time.
73
74  protobuf_unittest::TestAllTypes message;
75  TestUtil::SetAllFields(&message);
76  stringstream stream;
77
78  string str1("foo");
79  string str2("bar");
80
81  EXPECT_TRUE(message.SerializeToString(&str1));
82  EXPECT_TRUE(message.AppendToString(&str2));
83  EXPECT_TRUE(message.SerializeToOstream(&stream));
84
85  EXPECT_EQ(str1.size() + 3, str2.size());
86  EXPECT_EQ("bar", str2.substr(0, 3));
87  // Don't use EXPECT_EQ because we don't want to dump raw binary data to
88  // stdout.
89  EXPECT_TRUE(str2.substr(3) == str1);
90
91  // GCC gives some sort of error if we try to just do stream.str() == str1.
92  string temp = stream.str();
93  EXPECT_TRUE(temp == str1);
94
95  EXPECT_TRUE(message.SerializeAsString() == str1);
96
97}
98
99TEST(MessageTest, SerializeToBrokenOstream) {
100  ofstream out;
101  protobuf_unittest::TestAllTypes message;
102  message.set_optional_int32(123);
103
104  EXPECT_FALSE(message.SerializeToOstream(&out));
105}
106
107TEST(MessageTest, ParseFromFileDescriptor) {
108  string filename = TestSourceDir() +
109                    "/google/protobuf/testdata/golden_message";
110  int file = open(filename.c_str(), O_RDONLY | O_BINARY);
111
112  unittest::TestAllTypes message;
113  EXPECT_TRUE(message.ParseFromFileDescriptor(file));
114  TestUtil::ExpectAllFieldsSet(message);
115
116  EXPECT_GE(close(file), 0);
117}
118
119TEST(MessageTest, ParsePackedFromFileDescriptor) {
120  string filename =
121      TestSourceDir() +
122      "/google/protobuf/testdata/golden_packed_fields_message";
123  int file = open(filename.c_str(), O_RDONLY | O_BINARY);
124
125  unittest::TestPackedTypes message;
126  EXPECT_TRUE(message.ParseFromFileDescriptor(file));
127  TestUtil::ExpectPackedFieldsSet(message);
128
129  EXPECT_GE(close(file), 0);
130}
131
132TEST(MessageTest, ParseHelpers) {
133  // TODO(kenton):  Test more helpers?  They're all two-liners so it seems
134  //   like a waste of time.
135  string data;
136
137  {
138    // Set up.
139    protobuf_unittest::TestAllTypes message;
140    TestUtil::SetAllFields(&message);
141    message.SerializeToString(&data);
142  }
143
144  {
145    // Test ParseFromString.
146    protobuf_unittest::TestAllTypes message;
147    EXPECT_TRUE(message.ParseFromString(data));
148    TestUtil::ExpectAllFieldsSet(message);
149  }
150
151  {
152    // Test ParseFromIstream.
153    protobuf_unittest::TestAllTypes message;
154    stringstream stream(data);
155    EXPECT_TRUE(message.ParseFromIstream(&stream));
156    EXPECT_TRUE(stream.eof());
157    TestUtil::ExpectAllFieldsSet(message);
158  }
159
160  {
161    // Test ParseFromBoundedZeroCopyStream.
162    string data_with_junk(data);
163    data_with_junk.append("some junk on the end");
164    io::ArrayInputStream stream(data_with_junk.data(), data_with_junk.size());
165    protobuf_unittest::TestAllTypes message;
166    EXPECT_TRUE(message.ParseFromBoundedZeroCopyStream(&stream, data.size()));
167    TestUtil::ExpectAllFieldsSet(message);
168  }
169
170  {
171    // Test that ParseFromBoundedZeroCopyStream fails (but doesn't crash) if
172    // EOF is reached before the expected number of bytes.
173    io::ArrayInputStream stream(data.data(), data.size());
174    protobuf_unittest::TestAllTypes message;
175    EXPECT_FALSE(
176      message.ParseFromBoundedZeroCopyStream(&stream, data.size() + 1));
177  }
178}
179
180TEST(MessageTest, ParseFailsIfNotInitialized) {
181  unittest::TestRequired message;
182  vector<string> errors;
183
184  {
185    ScopedMemoryLog log;
186    EXPECT_FALSE(message.ParseFromString(""));
187    errors = log.GetMessages(ERROR);
188  }
189
190  ASSERT_EQ(1, errors.size());
191  EXPECT_EQ("Can't parse message of type \"protobuf_unittest.TestRequired\" "
192            "because it is missing required fields: a, b, c",
193            errors[0]);
194}
195
196TEST(MessageTest, BypassInitializationCheckOnParse) {
197  unittest::TestRequired message;
198  io::ArrayInputStream raw_input(NULL, 0);
199  io::CodedInputStream input(&raw_input);
200  EXPECT_TRUE(message.MergePartialFromCodedStream(&input));
201}
202
203TEST(MessageTest, InitializationErrorString) {
204  unittest::TestRequired message;
205  EXPECT_EQ("a, b, c", message.InitializationErrorString());
206}
207
208#ifdef PROTOBUF_HAS_DEATH_TEST
209
210TEST(MessageTest, SerializeFailsIfNotInitialized) {
211  unittest::TestRequired message;
212  string data;
213  EXPECT_DEBUG_DEATH(EXPECT_TRUE(message.SerializeToString(&data)),
214    "Can't serialize message of type \"protobuf_unittest.TestRequired\" because "
215    "it is missing required fields: a, b, c");
216}
217
218TEST(MessageTest, CheckInitialized) {
219  unittest::TestRequired message;
220  EXPECT_DEATH(message.CheckInitialized(),
221    "Message of type \"protobuf_unittest.TestRequired\" is missing required "
222    "fields: a, b, c");
223}
224
225#endif  // PROTOBUF_HAS_DEATH_TEST
226
227TEST(MessageTest, BypassInitializationCheckOnSerialize) {
228  unittest::TestRequired message;
229  io::ArrayOutputStream raw_output(NULL, 0);
230  io::CodedOutputStream output(&raw_output);
231  EXPECT_TRUE(message.SerializePartialToCodedStream(&output));
232}
233
234TEST(MessageTest, FindInitializationErrors) {
235  unittest::TestRequired message;
236  vector<string> errors;
237  message.FindInitializationErrors(&errors);
238  ASSERT_EQ(3, errors.size());
239  EXPECT_EQ("a", errors[0]);
240  EXPECT_EQ("b", errors[1]);
241  EXPECT_EQ("c", errors[2]);
242}
243
244TEST(MessageTest, ParseFailsOnInvalidMessageEnd) {
245  unittest::TestAllTypes message;
246
247  // Control case.
248  EXPECT_TRUE(message.ParseFromArray("", 0));
249
250  // The byte is a valid varint, but not a valid tag (zero).
251  EXPECT_FALSE(message.ParseFromArray("\0", 1));
252
253  // The byte is a malformed varint.
254  EXPECT_FALSE(message.ParseFromArray("\200", 1));
255
256  // The byte is an endgroup tag, but we aren't parsing a group.
257  EXPECT_FALSE(message.ParseFromArray("\014", 1));
258}
259
260namespace {
261
262void ExpectMessageMerged(const unittest::TestAllTypes& message) {
263  EXPECT_EQ(3, message.optional_int32());
264  EXPECT_EQ(2, message.optional_int64());
265  EXPECT_EQ("hello", message.optional_string());
266}
267
268void AssignParsingMergeMessages(
269    unittest::TestAllTypes* msg1,
270    unittest::TestAllTypes* msg2,
271    unittest::TestAllTypes* msg3) {
272  msg1->set_optional_int32(1);
273  msg2->set_optional_int64(2);
274  msg3->set_optional_int32(3);
275  msg3->set_optional_string("hello");
276}
277
278}  // namespace
279
280// Test that if an optional or required message/group field appears multiple
281// times in the input, they need to be merged.
282TEST(MessageTest, ParsingMerge) {
283  unittest::TestParsingMerge::RepeatedFieldsGenerator generator;
284  unittest::TestAllTypes* msg1;
285  unittest::TestAllTypes* msg2;
286  unittest::TestAllTypes* msg3;
287
288#define ASSIGN_REPEATED_FIELD(FIELD)                \
289  msg1 = generator.add_##FIELD();                   \
290  msg2 = generator.add_##FIELD();                   \
291  msg3 = generator.add_##FIELD();                   \
292  AssignParsingMergeMessages(msg1, msg2, msg3)
293
294  ASSIGN_REPEATED_FIELD(field1);
295  ASSIGN_REPEATED_FIELD(field2);
296  ASSIGN_REPEATED_FIELD(field3);
297  ASSIGN_REPEATED_FIELD(ext1);
298  ASSIGN_REPEATED_FIELD(ext2);
299
300#undef ASSIGN_REPEATED_FIELD
301#define ASSIGN_REPEATED_GROUP(FIELD)                \
302  msg1 = generator.add_##FIELD()->mutable_field1(); \
303  msg2 = generator.add_##FIELD()->mutable_field1(); \
304  msg3 = generator.add_##FIELD()->mutable_field1(); \
305  AssignParsingMergeMessages(msg1, msg2, msg3)
306
307  ASSIGN_REPEATED_GROUP(group1);
308  ASSIGN_REPEATED_GROUP(group2);
309
310#undef ASSIGN_REPEATED_GROUP
311
312  string buffer;
313  generator.SerializeToString(&buffer);
314  unittest::TestParsingMerge parsing_merge;
315  parsing_merge.ParseFromString(buffer);
316
317  // Required and optional fields should be merged.
318  ExpectMessageMerged(parsing_merge.required_all_types());
319  ExpectMessageMerged(parsing_merge.optional_all_types());
320  ExpectMessageMerged(
321      parsing_merge.optionalgroup().optional_group_all_types());
322  ExpectMessageMerged(
323      parsing_merge.GetExtension(unittest::TestParsingMerge::optional_ext));
324
325  // Repeated fields should not be merged.
326  EXPECT_EQ(3, parsing_merge.repeated_all_types_size());
327  EXPECT_EQ(3, parsing_merge.repeatedgroup_size());
328  EXPECT_EQ(3, parsing_merge.ExtensionSize(
329      unittest::TestParsingMerge::repeated_ext));
330}
331
332TEST(MessageFactoryTest, GeneratedFactoryLookup) {
333  EXPECT_EQ(
334    MessageFactory::generated_factory()->GetPrototype(
335      protobuf_unittest::TestAllTypes::descriptor()),
336    &protobuf_unittest::TestAllTypes::default_instance());
337}
338
339TEST(MessageFactoryTest, GeneratedFactoryUnknownType) {
340  // Construct a new descriptor.
341  DescriptorPool pool;
342  FileDescriptorProto file;
343  file.set_name("foo.proto");
344  file.add_message_type()->set_name("Foo");
345  const Descriptor* descriptor = pool.BuildFile(file)->message_type(0);
346
347  // Trying to construct it should return NULL.
348  EXPECT_TRUE(
349    MessageFactory::generated_factory()->GetPrototype(descriptor) == NULL);
350}
351
352
353}  // namespace protobuf
354}  // namespace google
355