/thirdparty/breakpad/third_party/protobuf/protobuf/src/google/protobuf/dynamic_message_unittest.cc

  1// Protocol Buffers - Google's data interchange format
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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// Since the reflection interface for DynamicMessage is implemented by
 36// GenericMessageReflection, the only thing we really have to test is
 37// that DynamicMessage correctly sets up the information that
 38// GenericMessageReflection needs to use.  So, we focus on that in this
 39// test.  Other tests, such as generic_message_reflection_unittest and
 40// reflection_ops_unittest, cover the rest of the functionality used by
 41// DynamicMessage.
 42
 43#include <google/protobuf/stubs/common.h>
 44#include <google/protobuf/dynamic_message.h>
 45#include <google/protobuf/descriptor.h>
 46#include <google/protobuf/descriptor.pb.h>
 47#include <google/protobuf/test_util.h>
 48#include <google/protobuf/unittest.pb.h>
 49
 50#include <google/protobuf/testing/googletest.h>
 51#include <gtest/gtest.h>
 52
 53namespace google {
 54namespace protobuf {
 55
 56class DynamicMessageTest : public testing::Test {
 57 protected:
 58  DescriptorPool pool_;
 59  DynamicMessageFactory factory_;
 60  const Descriptor* descriptor_;
 61  const Message* prototype_;
 62  const Descriptor* extensions_descriptor_;
 63  const Message* extensions_prototype_;
 64  const Descriptor* packed_descriptor_;
 65  const Message* packed_prototype_;
 66
 67  DynamicMessageTest(): factory_(&pool_) {}
 68
 69  virtual void SetUp() {
 70    // We want to make sure that DynamicMessage works (particularly with
 71    // extensions) even if we use descriptors that are *not* from compiled-in
 72    // types, so we make copies of the descriptors for unittest.proto and
 73    // unittest_import.proto.
 74    FileDescriptorProto unittest_file;
 75    FileDescriptorProto unittest_import_file;
 76
 77    unittest::TestAllTypes::descriptor()->file()->CopyTo(&unittest_file);
 78    unittest_import::ImportMessage::descriptor()->file()->CopyTo(
 79      &unittest_import_file);
 80
 81    ASSERT_TRUE(pool_.BuildFile(unittest_import_file) != NULL);
 82    ASSERT_TRUE(pool_.BuildFile(unittest_file) != NULL);
 83
 84    descriptor_ = pool_.FindMessageTypeByName("protobuf_unittest.TestAllTypes");
 85    ASSERT_TRUE(descriptor_ != NULL);
 86    prototype_ = factory_.GetPrototype(descriptor_);
 87
 88    extensions_descriptor_ =
 89      pool_.FindMessageTypeByName("protobuf_unittest.TestAllExtensions");
 90    ASSERT_TRUE(extensions_descriptor_ != NULL);
 91    extensions_prototype_ = factory_.GetPrototype(extensions_descriptor_);
 92
 93    packed_descriptor_ =
 94      pool_.FindMessageTypeByName("protobuf_unittest.TestPackedTypes");
 95    ASSERT_TRUE(packed_descriptor_ != NULL);
 96    packed_prototype_ = factory_.GetPrototype(packed_descriptor_);
 97  }
 98};
 99
100TEST_F(DynamicMessageTest, Descriptor) {
101  // Check that the descriptor on the DynamicMessage matches the descriptor
102  // passed to GetPrototype().
103  EXPECT_EQ(prototype_->GetDescriptor(), descriptor_);
104}
105
106TEST_F(DynamicMessageTest, OnePrototype) {
107  // Check that requesting the same prototype twice produces the same object.
108  EXPECT_EQ(prototype_, factory_.GetPrototype(descriptor_));
109}
110
111TEST_F(DynamicMessageTest, Defaults) {
112  // Check that all default values are set correctly in the initial message.
113  TestUtil::ReflectionTester reflection_tester(descriptor_);
114  reflection_tester.ExpectClearViaReflection(*prototype_);
115}
116
117TEST_F(DynamicMessageTest, IndependentOffsets) {
118  // Check that all fields have independent offsets by setting each
119  // one to a unique value then checking that they all still have those
120  // unique values (i.e. they don't stomp each other).
121  scoped_ptr<Message> message(prototype_->New());
122  TestUtil::ReflectionTester reflection_tester(descriptor_);
123
124  reflection_tester.SetAllFieldsViaReflection(message.get());
125  reflection_tester.ExpectAllFieldsSetViaReflection(*message);
126}
127
128TEST_F(DynamicMessageTest, Extensions) {
129  // Check that extensions work.
130  scoped_ptr<Message> message(extensions_prototype_->New());
131  TestUtil::ReflectionTester reflection_tester(extensions_descriptor_);
132
133  reflection_tester.SetAllFieldsViaReflection(message.get());
134  reflection_tester.ExpectAllFieldsSetViaReflection(*message);
135}
136
137TEST_F(DynamicMessageTest, PackedFields) {
138  // Check that packed fields work properly.
139  scoped_ptr<Message> message(packed_prototype_->New());
140  TestUtil::ReflectionTester reflection_tester(packed_descriptor_);
141
142  reflection_tester.SetPackedFieldsViaReflection(message.get());
143  reflection_tester.ExpectPackedFieldsSetViaReflection(*message);
144}
145
146TEST_F(DynamicMessageTest, SpaceUsed) {
147  // Test that SpaceUsed() works properly
148
149  // Since we share the implementation with generated messages, we don't need
150  // to test very much here.  Just make sure it appears to be working.
151
152  scoped_ptr<Message> message(prototype_->New());
153  TestUtil::ReflectionTester reflection_tester(descriptor_);
154
155  int initial_space_used = message->SpaceUsed();
156
157  reflection_tester.SetAllFieldsViaReflection(message.get());
158  EXPECT_LT(initial_space_used, message->SpaceUsed());
159}
160
161}  // namespace protobuf
162}  // namespace google