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+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc. All rights reserved.
+// http://code.google.com/p/protobuf/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Author: kenton@google.com (Kenton Varda)
+// Based on original Protocol Buffers design by
+// Sanjay Ghemawat, Jeff Dean, and others.
+
+#include <google/protobuf/extension_set.h>
+#include <google/protobuf/unittest.pb.h>
+#include <google/protobuf/test_util.h>
+#include <google/protobuf/descriptor.pb.h>
+#include <google/protobuf/descriptor.h>
+#include <google/protobuf/dynamic_message.h>
+#include <google/protobuf/wire_format.h>
+#include <google/protobuf/io/coded_stream.h>
+#include <google/protobuf/io/zero_copy_stream_impl.h>
+
+#include <google/protobuf/stubs/common.h>
+#include <google/protobuf/stubs/strutil.h>
+#include <google/protobuf/testing/googletest.h>
+#include <gtest/gtest.h>
+#include <google/protobuf/stubs/stl_util-inl.h>
+
+namespace google {
+namespace protobuf {
+namespace internal {
+namespace {
+
+// This test closely mirrors google/protobuf/compiler/cpp/unittest.cc
+// except that it uses extensions rather than regular fields.
+
+TEST(ExtensionSetTest, Defaults) {
+ // Check that all default values are set correctly in the initial message.
+ unittest::TestAllExtensions message;
+
+ TestUtil::ExpectExtensionsClear(message);
+
+ // Messages should return pointers to default instances until first use.
+ // (This is not checked by ExpectClear() since it is not actually true after
+ // the fields have been set and then cleared.)
+ EXPECT_EQ(&unittest::OptionalGroup_extension::default_instance(),
+ &message.GetExtension(unittest::optionalgroup_extension));
+ EXPECT_EQ(&unittest::TestAllTypes::NestedMessage::default_instance(),
+ &message.GetExtension(unittest::optional_nested_message_extension));
+ EXPECT_EQ(&unittest::ForeignMessage::default_instance(),
+ &message.GetExtension(
+ unittest::optional_foreign_message_extension));
+ EXPECT_EQ(&unittest_import::ImportMessage::default_instance(),
+ &message.GetExtension(unittest::optional_import_message_extension));
+}
+
+TEST(ExtensionSetTest, Accessors) {
+ // Set every field to a unique value then go back and check all those
+ // values.
+ unittest::TestAllExtensions message;
+
+ TestUtil::SetAllExtensions(&message);
+ TestUtil::ExpectAllExtensionsSet(message);
+
+ TestUtil::ModifyRepeatedExtensions(&message);
+ TestUtil::ExpectRepeatedExtensionsModified(message);
+}
+
+TEST(ExtensionSetTest, Clear) {
+ // Set every field to a unique value, clear the message, then check that
+ // it is cleared.
+ unittest::TestAllExtensions message;
+
+ TestUtil::SetAllExtensions(&message);
+ message.Clear();
+ TestUtil::ExpectExtensionsClear(message);
+
+ // Unlike with the defaults test, we do NOT expect that requesting embedded
+ // messages will return a pointer to the default instance. Instead, they
+ // should return the objects that were created when mutable_blah() was
+ // called.
+ EXPECT_NE(&unittest::OptionalGroup_extension::default_instance(),
+ &message.GetExtension(unittest::optionalgroup_extension));
+ EXPECT_NE(&unittest::TestAllTypes::NestedMessage::default_instance(),
+ &message.GetExtension(unittest::optional_nested_message_extension));
+ EXPECT_NE(&unittest::ForeignMessage::default_instance(),
+ &message.GetExtension(
+ unittest::optional_foreign_message_extension));
+ EXPECT_NE(&unittest_import::ImportMessage::default_instance(),
+ &message.GetExtension(unittest::optional_import_message_extension));
+
+ // Make sure setting stuff again after clearing works. (This takes slightly
+ // different code paths since the objects are reused.)
+ TestUtil::SetAllExtensions(&message);
+ TestUtil::ExpectAllExtensionsSet(message);
+}
+
+TEST(ExtensionSetTest, ClearOneField) {
+ // Set every field to a unique value, then clear one value and insure that
+ // only that one value is cleared.
+ unittest::TestAllExtensions message;
+
+ TestUtil::SetAllExtensions(&message);
+ int64 original_value =
+ message.GetExtension(unittest::optional_int64_extension);
+
+ // Clear the field and make sure it shows up as cleared.
+ message.ClearExtension(unittest::optional_int64_extension);
+ EXPECT_FALSE(message.HasExtension(unittest::optional_int64_extension));
+ EXPECT_EQ(0, message.GetExtension(unittest::optional_int64_extension));
+
+ // Other adjacent fields should not be cleared.
+ EXPECT_TRUE(message.HasExtension(unittest::optional_int32_extension));
+ EXPECT_TRUE(message.HasExtension(unittest::optional_uint32_extension));
+
+ // Make sure if we set it again, then all fields are set.
+ message.SetExtension(unittest::optional_int64_extension, original_value);
+ TestUtil::ExpectAllExtensionsSet(message);
+}
+
+TEST(ExtensionSetTest, CopyFrom) {
+ unittest::TestAllExtensions message1, message2;
+ string data;
+
+ TestUtil::SetAllExtensions(&message1);
+ message2.CopyFrom(message1);
+ TestUtil::ExpectAllExtensionsSet(message2);
+}
+
+TEST(ExtensionSetTest, CopyFromUpcasted) {
+ unittest::TestAllExtensions message1, message2;
+ string data;
+ const Message& upcasted_message = message1;
+
+ TestUtil::SetAllExtensions(&message1);
+ message2.CopyFrom(upcasted_message);
+ TestUtil::ExpectAllExtensionsSet(message2);
+}
+
+TEST(ExtensionSetTest, SwapWithEmpty) {
+ unittest::TestAllExtensions message1, message2;
+ TestUtil::SetAllExtensions(&message1);
+
+ TestUtil::ExpectAllExtensionsSet(message1);
+ TestUtil::ExpectExtensionsClear(message2);
+ message1.Swap(&message2);
+ TestUtil::ExpectAllExtensionsSet(message2);
+ TestUtil::ExpectExtensionsClear(message1);
+}
+
+TEST(ExtensionSetTest, SwapWithSelf) {
+ unittest::TestAllExtensions message;
+ TestUtil::SetAllExtensions(&message);
+
+ TestUtil::ExpectAllExtensionsSet(message);
+ message.Swap(&message);
+ TestUtil::ExpectAllExtensionsSet(message);
+}
+
+TEST(ExtensionSetTest, SerializationToArray) {
+ // Serialize as TestAllExtensions and parse as TestAllTypes to insure wire
+ // compatibility of extensions.
+ //
+ // This checks serialization to a flat array by explicitly reserving space in
+ // the string and calling the generated message's
+ // SerializeWithCachedSizesToArray.
+ unittest::TestAllExtensions source;
+ unittest::TestAllTypes destination;
+ TestUtil::SetAllExtensions(&source);
+ int size = source.ByteSize();
+ string data;
+ data.resize(size);
+ uint8* target = reinterpret_cast<uint8*>(string_as_array(&data));
+ uint8* end = source.SerializeWithCachedSizesToArray(target);
+ EXPECT_EQ(size, end - target);
+ EXPECT_TRUE(destination.ParseFromString(data));
+ TestUtil::ExpectAllFieldsSet(destination);
+}
+
+TEST(ExtensionSetTest, SerializationToStream) {
+ // Serialize as TestAllExtensions and parse as TestAllTypes to insure wire
+ // compatibility of extensions.
+ //
+ // This checks serialization to an output stream by creating an array output
+ // stream that can only buffer 1 byte at a time - this prevents the message
+ // from ever jumping to the fast path, ensuring that serialization happens via
+ // the CodedOutputStream.
+ unittest::TestAllExtensions source;
+ unittest::TestAllTypes destination;
+ TestUtil::SetAllExtensions(&source);
+ int size = source.ByteSize();
+ string data;
+ data.resize(size);
+ {
+ io::ArrayOutputStream array_stream(string_as_array(&data), size, 1);
+ io::CodedOutputStream output_stream(&array_stream);
+ source.SerializeWithCachedSizes(&output_stream);
+ ASSERT_FALSE(output_stream.HadError());
+ }
+ EXPECT_TRUE(destination.ParseFromString(data));
+ TestUtil::ExpectAllFieldsSet(destination);
+}
+
+TEST(ExtensionSetTest, PackedSerializationToArray) {
+ // Serialize as TestPackedExtensions and parse as TestPackedTypes to insure
+ // wire compatibility of extensions.
+ //
+ // This checks serialization to a flat array by explicitly reserving space in
+ // the string and calling the generated message's
+ // SerializeWithCachedSizesToArray.
+ unittest::TestPackedExtensions source;
+ unittest::TestPackedTypes destination;
+ TestUtil::SetPackedExtensions(&source);
+ int size = source.ByteSize();
+ string data;
+ data.resize(size);
+ uint8* target = reinterpret_cast<uint8*>(string_as_array(&data));
+ uint8* end = source.SerializeWithCachedSizesToArray(target);
+ EXPECT_EQ(size, end - target);
+ EXPECT_TRUE(destination.ParseFromString(data));
+ TestUtil::ExpectPackedFieldsSet(destination);
+}
+
+TEST(ExtensionSetTest, PackedSerializationToStream) {
+ // Serialize as TestPackedExtensions and parse as TestPackedTypes to insure
+ // wire compatibility of extensions.
+ //
+ // This checks serialization to an output stream by creating an array output
+ // stream that can only buffer 1 byte at a time - this prevents the message
+ // from ever jumping to the fast path, ensuring that serialization happens via
+ // the CodedOutputStream.
+ unittest::TestPackedExtensions source;
+ unittest::TestPackedTypes destination;
+ TestUtil::SetPackedExtensions(&source);
+ int size = source.ByteSize();
+ string data;
+ data.resize(size);
+ {
+ io::ArrayOutputStream array_stream(string_as_array(&data), size, 1);
+ io::CodedOutputStream output_stream(&array_stream);
+ source.SerializeWithCachedSizes(&output_stream);
+ ASSERT_FALSE(output_stream.HadError());
+ }
+ EXPECT_TRUE(destination.ParseFromString(data));
+ TestUtil::ExpectPackedFieldsSet(destination);
+}
+
+TEST(ExtensionSetTest, Parsing) {
+ // Serialize as TestAllTypes and parse as TestAllExtensions.
+ unittest::TestAllTypes source;
+ unittest::TestAllExtensions destination;
+ string data;
+
+ TestUtil::SetAllFields(&source);
+ source.SerializeToString(&data);
+ EXPECT_TRUE(destination.ParseFromString(data));
+ TestUtil::ExpectAllExtensionsSet(destination);
+}
+
+TEST(ExtensionSetTest, PackedParsing) {
+ // Serialize as TestPackedTypes and parse as TestPackedExtensions.
+ unittest::TestPackedTypes source;
+ unittest::TestPackedExtensions destination;
+ string data;
+
+ TestUtil::SetPackedFields(&source);
+ source.SerializeToString(&data);
+ EXPECT_TRUE(destination.ParseFromString(data));
+ TestUtil::ExpectPackedExtensionsSet(destination);
+}
+
+TEST(ExtensionSetTest, IsInitialized) {
+ // Test that IsInitialized() returns false if required fields in nested
+ // extensions are missing.
+ unittest::TestAllExtensions message;
+
+ EXPECT_TRUE(message.IsInitialized());
+
+ message.MutableExtension(unittest::TestRequired::single);
+ EXPECT_FALSE(message.IsInitialized());
+
+ message.MutableExtension(unittest::TestRequired::single)->set_a(1);
+ EXPECT_FALSE(message.IsInitialized());
+ message.MutableExtension(unittest::TestRequired::single)->set_b(2);
+ EXPECT_FALSE(message.IsInitialized());
+ message.MutableExtension(unittest::TestRequired::single)->set_c(3);
+ EXPECT_TRUE(message.IsInitialized());
+
+ message.AddExtension(unittest::TestRequired::multi);
+ EXPECT_FALSE(message.IsInitialized());
+
+ message.MutableExtension(unittest::TestRequired::multi, 0)->set_a(1);
+ EXPECT_FALSE(message.IsInitialized());
+ message.MutableExtension(unittest::TestRequired::multi, 0)->set_b(2);
+ EXPECT_FALSE(message.IsInitialized());
+ message.MutableExtension(unittest::TestRequired::multi, 0)->set_c(3);
+ EXPECT_TRUE(message.IsInitialized());
+}
+
+TEST(ExtensionSetTest, MutableString) {
+ // Test the mutable string accessors.
+ unittest::TestAllExtensions message;
+
+ message.MutableExtension(unittest::optional_string_extension)->assign("foo");
+ EXPECT_TRUE(message.HasExtension(unittest::optional_string_extension));
+ EXPECT_EQ("foo", message.GetExtension(unittest::optional_string_extension));
+
+ message.AddExtension(unittest::repeated_string_extension)->assign("bar");
+ ASSERT_EQ(1, message.ExtensionSize(unittest::repeated_string_extension));
+ EXPECT_EQ("bar",
+ message.GetExtension(unittest::repeated_string_extension, 0));
+}
+
+TEST(ExtensionSetTest, SpaceUsedExcludingSelf) {
+ // Scalar primitive extensions should increase the extension set size by a
+ // minimum of the size of the primitive type.
+#define TEST_SCALAR_EXTENSIONS_SPACE_USED(type, value) \
+ do { \
+ unittest::TestAllExtensions message; \
+ const int base_size = message.SpaceUsed(); \
+ message.SetExtension(unittest::optional_##type##_extension, value); \
+ int min_expected_size = base_size + \
+ sizeof(message.GetExtension(unittest::optional_##type##_extension)); \
+ EXPECT_LE(min_expected_size, message.SpaceUsed()); \
+ } while (0)
+
+ TEST_SCALAR_EXTENSIONS_SPACE_USED(int32 , 101);
+ TEST_SCALAR_EXTENSIONS_SPACE_USED(int64 , 102);
+ TEST_SCALAR_EXTENSIONS_SPACE_USED(uint32 , 103);
+ TEST_SCALAR_EXTENSIONS_SPACE_USED(uint64 , 104);
+ TEST_SCALAR_EXTENSIONS_SPACE_USED(sint32 , 105);
+ TEST_SCALAR_EXTENSIONS_SPACE_USED(sint64 , 106);
+ TEST_SCALAR_EXTENSIONS_SPACE_USED(fixed32 , 107);
+ TEST_SCALAR_EXTENSIONS_SPACE_USED(fixed64 , 108);
+ TEST_SCALAR_EXTENSIONS_SPACE_USED(sfixed32, 109);
+ TEST_SCALAR_EXTENSIONS_SPACE_USED(sfixed64, 110);
+ TEST_SCALAR_EXTENSIONS_SPACE_USED(float , 111);
+ TEST_SCALAR_EXTENSIONS_SPACE_USED(double , 112);
+ TEST_SCALAR_EXTENSIONS_SPACE_USED(bool , true);
+#undef TEST_SCALAR_EXTENSIONS_SPACE_USED
+ {
+ unittest::TestAllExtensions message;
+ const int base_size = message.SpaceUsed();
+ message.SetExtension(unittest::optional_nested_enum_extension,
+ unittest::TestAllTypes::FOO);
+ int min_expected_size = base_size +
+ sizeof(message.GetExtension(unittest::optional_nested_enum_extension));
+ EXPECT_LE(min_expected_size, message.SpaceUsed());
+ }
+ {
+ // Strings may cause extra allocations depending on their length; ensure
+ // that gets included as well.
+ unittest::TestAllExtensions message;
+ const int base_size = message.SpaceUsed();
+ const string s("this is a fairly large string that will cause some "
+ "allocation in order to store it in the extension");
+ message.SetExtension(unittest::optional_string_extension, s);
+ int min_expected_size = base_size + s.length();
+ EXPECT_LE(min_expected_size, message.SpaceUsed());
+ }
+ {
+ // Messages also have additional allocation that need to be counted.
+ unittest::TestAllExtensions message;
+ const int base_size = message.SpaceUsed();
+ unittest::ForeignMessage foreign;
+ foreign.set_c(42);
+ message.MutableExtension(unittest::optional_foreign_message_extension)->
+ CopyFrom(foreign);
+ int min_expected_size = base_size + foreign.SpaceUsed();
+ EXPECT_LE(min_expected_size, message.SpaceUsed());
+ }
+
+ // Repeated primitive extensions will increase space used by at least a
+ // RepeatedField<T>, and will cause additional allocations when the array
+ // gets too big for the initial space.
+ // This macro:
+ // - Adds a value to the repeated extension, then clears it, establishing
+ // the base size.
+ // - Adds a small number of values, testing that it doesn't increase the
+ // SpaceUsed()
+ // - Adds a large number of values (requiring allocation in the repeated
+ // field), and ensures that that allocation is included in SpaceUsed()
+#define TEST_REPEATED_EXTENSIONS_SPACE_USED(type, cpptype, value) \
+ do { \
+ unittest::TestAllExtensions message; \
+ const int base_size = message.SpaceUsed(); \
+ int min_expected_size = sizeof(RepeatedField<cpptype>) + base_size; \
+ message.AddExtension(unittest::repeated_##type##_extension, value); \
+ message.ClearExtension(unittest::repeated_##type##_extension); \
+ const int empty_repeated_field_size = message.SpaceUsed(); \
+ EXPECT_LE(min_expected_size, empty_repeated_field_size) << #type; \
+ message.AddExtension(unittest::repeated_##type##_extension, value); \
+ message.AddExtension(unittest::repeated_##type##_extension, value); \
+ EXPECT_EQ(empty_repeated_field_size, message.SpaceUsed()) << #type; \
+ message.ClearExtension(unittest::repeated_##type##_extension); \
+ for (int i = 0; i < 16; ++i) { \
+ message.AddExtension(unittest::repeated_##type##_extension, value); \
+ } \
+ int expected_size = sizeof(cpptype) * 16 + empty_repeated_field_size; \
+ EXPECT_EQ(expected_size, message.SpaceUsed()) << #type; \
+ } while (0)
+
+ TEST_REPEATED_EXTENSIONS_SPACE_USED(int32 , int32 , 101);
+ TEST_REPEATED_EXTENSIONS_SPACE_USED(int64 , int64 , 102);
+ TEST_REPEATED_EXTENSIONS_SPACE_USED(uint32 , uint32, 103);
+ TEST_REPEATED_EXTENSIONS_SPACE_USED(uint64 , uint64, 104);
+ TEST_REPEATED_EXTENSIONS_SPACE_USED(sint32 , int32 , 105);
+ TEST_REPEATED_EXTENSIONS_SPACE_USED(sint64 , int64 , 106);
+ TEST_REPEATED_EXTENSIONS_SPACE_USED(fixed32 , uint32, 107);
+ TEST_REPEATED_EXTENSIONS_SPACE_USED(fixed64 , uint64, 108);
+ TEST_REPEATED_EXTENSIONS_SPACE_USED(sfixed32, int32 , 109);
+ TEST_REPEATED_EXTENSIONS_SPACE_USED(sfixed64, int64 , 110);
+ TEST_REPEATED_EXTENSIONS_SPACE_USED(float , float , 111);
+ TEST_REPEATED_EXTENSIONS_SPACE_USED(double , double, 112);
+ TEST_REPEATED_EXTENSIONS_SPACE_USED(bool , bool , true);
+ TEST_REPEATED_EXTENSIONS_SPACE_USED(nested_enum, int,
+ unittest::TestAllTypes::FOO);
+#undef TEST_REPEATED_EXTENSIONS_SPACE_USED
+ // Repeated strings
+ {
+ unittest::TestAllExtensions message;
+ const int base_size = message.SpaceUsed();
+ int min_expected_size = sizeof(RepeatedPtrField<string>) + base_size;
+ const string value(256, 'x');
+ // Once items are allocated, they may stick around even when cleared so
+ // without the hardcore memory management accessors there isn't a notion of
+ // the empty repeated field memory usage as there is with primitive types.
+ for (int i = 0; i < 16; ++i) {
+ message.AddExtension(unittest::repeated_string_extension, value);
+ }
+ min_expected_size += (sizeof(value) + value.size()) * 16;
+ EXPECT_LE(min_expected_size, message.SpaceUsed());
+ }
+ // Repeated messages
+ {
+ unittest::TestAllExtensions message;
+ const int base_size = message.SpaceUsed();
+ int min_expected_size = sizeof(RepeatedPtrField<unittest::ForeignMessage>) +
+ base_size;
+ unittest::ForeignMessage prototype;
+ prototype.set_c(2);
+ for (int i = 0; i < 16; ++i) {
+ message.AddExtension(unittest::repeated_foreign_message_extension)->
+ CopyFrom(prototype);
+ }
+ min_expected_size += 16 * prototype.SpaceUsed();
+ EXPECT_LE(min_expected_size, message.SpaceUsed());
+ }
+}
+
+#ifdef GTEST_HAS_DEATH_TEST
+
+TEST(ExtensionSetTest, InvalidEnumDeath) {
+ unittest::TestAllExtensions message;
+ EXPECT_DEBUG_DEATH(
+ message.SetExtension(unittest::optional_foreign_enum_extension,
+ static_cast<unittest::ForeignEnum>(53)),
+ "IsValid");
+}
+
+#endif // GTEST_HAS_DEATH_TEST
+
+TEST(ExtensionSetTest, DynamicExtensions) {
+ // Test adding a dynamic extension to a compiled-in message object.
+
+ FileDescriptorProto dynamic_proto;
+ dynamic_proto.set_name("dynamic_extensions_test.proto");
+ dynamic_proto.add_dependency(
+ unittest::TestAllExtensions::descriptor()->file()->name());
+ dynamic_proto.set_package("dynamic_extensions");
+
+ // Copy the fields and nested types from TestDynamicExtensions into our new
+ // proto, converting the fields into extensions.
+ const Descriptor* template_descriptor =
+ unittest::TestDynamicExtensions::descriptor();
+ DescriptorProto template_descriptor_proto;
+ template_descriptor->CopyTo(&template_descriptor_proto);
+ dynamic_proto.mutable_message_type()->MergeFrom(
+ template_descriptor_proto.nested_type());
+ dynamic_proto.mutable_enum_type()->MergeFrom(
+ template_descriptor_proto.enum_type());
+ dynamic_proto.mutable_extension()->MergeFrom(
+ template_descriptor_proto.field());
+
+ // For each extension that we added...
+ for (int i = 0; i < dynamic_proto.extension_size(); i++) {
+ // Set its extendee to TestAllExtensions.
+ FieldDescriptorProto* extension = dynamic_proto.mutable_extension(i);
+ extension->set_extendee(
+ unittest::TestAllExtensions::descriptor()->full_name());
+
+ // If the field refers to one of the types nested in TestDynamicExtensions,
+ // make it refer to the type in our dynamic proto instead.
+ string prefix = "." + template_descriptor->full_name() + ".";
+ if (extension->has_type_name()) {
+ string* type_name = extension->mutable_type_name();
+ if (HasPrefixString(*type_name, prefix)) {
+ type_name->replace(0, prefix.size(), ".dynamic_extensions.");
+ }
+ }
+ }
+
+ // Now build the file, using the generated pool as an underlay.
+ DescriptorPool dynamic_pool(DescriptorPool::generated_pool());
+ const FileDescriptor* file = dynamic_pool.BuildFile(dynamic_proto);
+ ASSERT_TRUE(file != NULL);
+ DynamicMessageFactory dynamic_factory(&dynamic_pool);
+ dynamic_factory.SetDelegateToGeneratedFactory(true);
+
+ // Construct a message that we can parse with the extensions we defined.
+ // Since the extensions were based off of the fields of TestDynamicExtensions,
+ // we can use that message to create this test message.
+ string data;
+ {
+ unittest::TestDynamicExtensions message;
+ message.set_scalar_extension(123);
+ message.set_enum_extension(unittest::FOREIGN_BAR);
+ message.set_dynamic_enum_extension(
+ unittest::TestDynamicExtensions::DYNAMIC_BAZ);
+ message.mutable_message_extension()->set_c(456);
+ message.mutable_dynamic_message_extension()->set_dynamic_field(789);
+ message.add_repeated_extension("foo");
+ message.add_repeated_extension("bar");
+ message.add_packed_extension(12);
+ message.add_packed_extension(-34);
+ message.add_packed_extension(56);
+ message.add_packed_extension(-78);
+
+ // Also add some unknown fields.
+
+ // An unknown enum value (for a known field).
+ message.mutable_unknown_fields()->AddVarint(
+ unittest::TestDynamicExtensions::kDynamicEnumExtensionFieldNumber,
+ 12345);
+ // A regular unknown field.
+ message.mutable_unknown_fields()->AddLengthDelimited(54321, "unknown");
+
+ message.SerializeToString(&data);
+ }
+
+ // Now we can parse this using our dynamic extension definitions...
+ unittest::TestAllExtensions message;
+ {
+ io::ArrayInputStream raw_input(data.data(), data.size());
+ io::CodedInputStream input(&raw_input);
+ input.SetExtensionRegistry(&dynamic_pool, &dynamic_factory);
+ ASSERT_TRUE(message.ParseFromCodedStream(&input));
+ ASSERT_TRUE(input.ConsumedEntireMessage());
+ }
+
+ // Can we print it?
+ EXPECT_EQ(
+ "[dynamic_extensions.scalar_extension]: 123\n"
+ "[dynamic_extensions.enum_extension]: FOREIGN_BAR\n"
+ "[dynamic_extensions.dynamic_enum_extension]: DYNAMIC_BAZ\n"
+ "[dynamic_extensions.message_extension] {\n"
+ " c: 456\n"
+ "}\n"
+ "[dynamic_extensions.dynamic_message_extension] {\n"
+ " dynamic_field: 789\n"
+ "}\n"
+ "[dynamic_extensions.repeated_extension]: \"foo\"\n"
+ "[dynamic_extensions.repeated_extension]: \"bar\"\n"
+ "[dynamic_extensions.packed_extension]: 12\n"
+ "[dynamic_extensions.packed_extension]: -34\n"
+ "[dynamic_extensions.packed_extension]: 56\n"
+ "[dynamic_extensions.packed_extension]: -78\n"
+ "2002: 12345\n"
+ "54321: \"unknown\"\n",
+ message.DebugString());
+
+ // Can we serialize it?
+ // (Don't use EXPECT_EQ because we don't want to dump raw binary data to the
+ // terminal on failure.)
+ EXPECT_TRUE(message.SerializeAsString() == data);
+
+ // What if we parse using the reflection-based parser?
+ {
+ unittest::TestAllExtensions message2;
+ io::ArrayInputStream raw_input(data.data(), data.size());
+ io::CodedInputStream input(&raw_input);
+ input.SetExtensionRegistry(&dynamic_pool, &dynamic_factory);
+ ASSERT_TRUE(WireFormat::ParseAndMergePartial(&input, &message2));
+ ASSERT_TRUE(input.ConsumedEntireMessage());
+ EXPECT_EQ(message.DebugString(), message2.DebugString());
+ }
+
+ // Are the embedded generated types actually using the generated objects?
+ {
+ const FieldDescriptor* message_extension =
+ file->FindExtensionByName("message_extension");
+ ASSERT_TRUE(message_extension != NULL);
+ const Message& sub_message =
+ message.GetReflection()->GetMessage(message, message_extension);
+ const unittest::ForeignMessage* typed_sub_message =
+ dynamic_cast<const unittest::ForeignMessage*>(&sub_message);
+ ASSERT_TRUE(typed_sub_message != NULL);
+ EXPECT_EQ(456, typed_sub_message->c());
+ }
+
+ // What does GetMessage() return for the embedded dynamic type if it isn't
+ // present?
+ {
+ const FieldDescriptor* dynamic_message_extension =
+ file->FindExtensionByName("dynamic_message_extension");
+ ASSERT_TRUE(dynamic_message_extension != NULL);
+ const Message& parent = unittest::TestAllExtensions::default_instance();
+ const Message& sub_message =
+ parent.GetReflection()->GetMessage(parent, dynamic_message_extension,
+ &dynamic_factory);
+ const Message* prototype =
+ dynamic_factory.GetPrototype(dynamic_message_extension->message_type());
+ EXPECT_EQ(prototype, &sub_message);
+ }
+}
+
+} // namespace
+} // namespace internal
+} // namespace protobuf
+} // namespace google