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
53 namespace google {
54 namespace protobuf {
55
56 class 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
DynamicMessageTest()67 DynamicMessageTest(): factory_(&pool_) {}
68
SetUp()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
TEST_F(DynamicMessageTest,Descriptor)100 TEST_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
TEST_F(DynamicMessageTest,OnePrototype)106 TEST_F(DynamicMessageTest, OnePrototype) {
107 // Check that requesting the same prototype twice produces the same object.
108 EXPECT_EQ(prototype_, factory_.GetPrototype(descriptor_));
109 }
110
TEST_F(DynamicMessageTest,Defaults)111 TEST_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
TEST_F(DynamicMessageTest,IndependentOffsets)117 TEST_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
TEST_F(DynamicMessageTest,Extensions)128 TEST_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
TEST_F(DynamicMessageTest,PackedFields)137 TEST_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
TEST_F(DynamicMessageTest,SpaceUsed)146 TEST_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
163