Squashed 'third_party/protobuf/' content from commit e35e248

Change-Id: I6cbe123d09fe50fdcad0e51466665daeee7433c7
git-subtree-dir: third_party/protobuf
git-subtree-split: e35e24800fb8d694bdeea5fd63dc7d1b14d68723
diff --git a/src/google/protobuf/dynamic_message_unittest.cc b/src/google/protobuf/dynamic_message_unittest.cc
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+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+// https://developers.google.com/protocol-buffers/
+//
+// 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.
+//
+// Since the reflection interface for DynamicMessage is implemented by
+// GenericMessageReflection, the only thing we really have to test is
+// that DynamicMessage correctly sets up the information that
+// GenericMessageReflection needs to use.  So, we focus on that in this
+// test.  Other tests, such as generic_message_reflection_unittest and
+// reflection_ops_unittest, cover the rest of the functionality used by
+// DynamicMessage.
+
+#include <memory>
+#ifndef _SHARED_PTR_H
+#include <google/protobuf/stubs/shared_ptr.h>
+#endif
+
+#include <google/protobuf/stubs/scoped_ptr.h>
+#include <google/protobuf/stubs/common.h>
+#include <google/protobuf/dynamic_message.h>
+#include <google/protobuf/descriptor.h>
+#include <google/protobuf/descriptor.pb.h>
+#include <google/protobuf/test_util.h>
+#include <google/protobuf/unittest.pb.h>
+#include <google/protobuf/unittest_no_field_presence.pb.h>
+
+#include <google/protobuf/stubs/logging.h>
+#include <google/protobuf/testing/googletest.h>
+#include <gtest/gtest.h>
+
+namespace google {
+namespace protobuf {
+
+class DynamicMessageTest : public testing::Test {
+ protected:
+  DescriptorPool pool_;
+  DynamicMessageFactory factory_;
+  const Descriptor* descriptor_;
+  const Message* prototype_;
+  const Descriptor* extensions_descriptor_;
+  const Message* extensions_prototype_;
+  const Descriptor* packed_descriptor_;
+  const Message* packed_prototype_;
+  const Descriptor* oneof_descriptor_;
+  const Message* oneof_prototype_;
+  const Descriptor* proto3_descriptor_;
+  const Message* proto3_prototype_;
+
+  DynamicMessageTest(): factory_(&pool_) {}
+
+  virtual void SetUp() {
+    // We want to make sure that DynamicMessage works (particularly with
+    // extensions) even if we use descriptors that are *not* from compiled-in
+    // types, so we make copies of the descriptors for unittest.proto and
+    // unittest_import.proto.
+    FileDescriptorProto unittest_file;
+    FileDescriptorProto unittest_import_file;
+    FileDescriptorProto unittest_import_public_file;
+    FileDescriptorProto unittest_no_field_presence_file;
+
+    unittest::TestAllTypes::descriptor()->file()->CopyTo(&unittest_file);
+    unittest_import::ImportMessage::descriptor()->file()->CopyTo(
+      &unittest_import_file);
+    unittest_import::PublicImportMessage::descriptor()->file()->CopyTo(
+      &unittest_import_public_file);
+    proto2_nofieldpresence_unittest::TestAllTypes::descriptor()->
+        file()->CopyTo(&unittest_no_field_presence_file);
+
+    ASSERT_TRUE(pool_.BuildFile(unittest_import_public_file) != NULL);
+    ASSERT_TRUE(pool_.BuildFile(unittest_import_file) != NULL);
+    ASSERT_TRUE(pool_.BuildFile(unittest_file) != NULL);
+    ASSERT_TRUE(pool_.BuildFile(unittest_no_field_presence_file) != NULL);
+
+    descriptor_ = pool_.FindMessageTypeByName("protobuf_unittest.TestAllTypes");
+    ASSERT_TRUE(descriptor_ != NULL);
+    prototype_ = factory_.GetPrototype(descriptor_);
+
+    extensions_descriptor_ =
+      pool_.FindMessageTypeByName("protobuf_unittest.TestAllExtensions");
+    ASSERT_TRUE(extensions_descriptor_ != NULL);
+    extensions_prototype_ = factory_.GetPrototype(extensions_descriptor_);
+
+    packed_descriptor_ =
+      pool_.FindMessageTypeByName("protobuf_unittest.TestPackedTypes");
+    ASSERT_TRUE(packed_descriptor_ != NULL);
+    packed_prototype_ = factory_.GetPrototype(packed_descriptor_);
+
+    oneof_descriptor_ =
+      pool_.FindMessageTypeByName("protobuf_unittest.TestOneof2");
+    ASSERT_TRUE(oneof_descriptor_ != NULL);
+    oneof_prototype_ = factory_.GetPrototype(oneof_descriptor_);
+
+    proto3_descriptor_ =
+      pool_.FindMessageTypeByName(
+          "proto2_nofieldpresence_unittest.TestAllTypes");
+    ASSERT_TRUE(proto3_descriptor_ != NULL);
+    proto3_prototype_ = factory_.GetPrototype(proto3_descriptor_);
+  }
+};
+
+TEST_F(DynamicMessageTest, Descriptor) {
+  // Check that the descriptor on the DynamicMessage matches the descriptor
+  // passed to GetPrototype().
+  EXPECT_EQ(prototype_->GetDescriptor(), descriptor_);
+}
+
+TEST_F(DynamicMessageTest, OnePrototype) {
+  // Check that requesting the same prototype twice produces the same object.
+  EXPECT_EQ(prototype_, factory_.GetPrototype(descriptor_));
+}
+
+TEST_F(DynamicMessageTest, Defaults) {
+  // Check that all default values are set correctly in the initial message.
+  TestUtil::ReflectionTester reflection_tester(descriptor_);
+  reflection_tester.ExpectClearViaReflection(*prototype_);
+}
+
+TEST_F(DynamicMessageTest, IndependentOffsets) {
+  // Check that all fields have independent offsets by setting each
+  // one to a unique value then checking that they all still have those
+  // unique values (i.e. they don't stomp each other).
+  google::protobuf::scoped_ptr<Message> message(prototype_->New());
+  TestUtil::ReflectionTester reflection_tester(descriptor_);
+
+  reflection_tester.SetAllFieldsViaReflection(message.get());
+  reflection_tester.ExpectAllFieldsSetViaReflection(*message);
+}
+
+TEST_F(DynamicMessageTest, Extensions) {
+  // Check that extensions work.
+  google::protobuf::scoped_ptr<Message> message(extensions_prototype_->New());
+  TestUtil::ReflectionTester reflection_tester(extensions_descriptor_);
+
+  reflection_tester.SetAllFieldsViaReflection(message.get());
+  reflection_tester.ExpectAllFieldsSetViaReflection(*message);
+}
+
+TEST_F(DynamicMessageTest, PackedFields) {
+  // Check that packed fields work properly.
+  google::protobuf::scoped_ptr<Message> message(packed_prototype_->New());
+  TestUtil::ReflectionTester reflection_tester(packed_descriptor_);
+
+  reflection_tester.SetPackedFieldsViaReflection(message.get());
+  reflection_tester.ExpectPackedFieldsSetViaReflection(*message);
+}
+
+TEST_F(DynamicMessageTest, Oneof) {
+  // Check that oneof fields work properly.
+  google::protobuf::scoped_ptr<Message> message(oneof_prototype_->New());
+
+  // Check default values.
+  const Descriptor* descriptor = message->GetDescriptor();
+  const Reflection* reflection = message->GetReflection();
+  EXPECT_EQ(0, reflection->GetInt32(
+      *message, descriptor->FindFieldByName("foo_int")));
+  EXPECT_EQ("", reflection->GetString(
+      *message, descriptor->FindFieldByName("foo_string")));
+  EXPECT_EQ("", reflection->GetString(
+      *message, descriptor->FindFieldByName("foo_cord")));
+  EXPECT_EQ("", reflection->GetString(
+      *message, descriptor->FindFieldByName("foo_string_piece")));
+  EXPECT_EQ("", reflection->GetString(
+      *message, descriptor->FindFieldByName("foo_bytes")));
+  EXPECT_EQ(unittest::TestOneof2::FOO, reflection->GetEnum(
+      *message, descriptor->FindFieldByName("foo_enum"))->number());
+  const Descriptor* nested_descriptor;
+  const Message* nested_prototype;
+  nested_descriptor =
+      pool_.FindMessageTypeByName("protobuf_unittest.TestOneof2.NestedMessage");
+  nested_prototype = factory_.GetPrototype(nested_descriptor);
+  EXPECT_EQ(nested_prototype,
+            &reflection->GetMessage(
+                *message, descriptor->FindFieldByName("foo_message")));
+  const Descriptor* foogroup_descriptor;
+  const Message* foogroup_prototype;
+  foogroup_descriptor =
+      pool_.FindMessageTypeByName("protobuf_unittest.TestOneof2.FooGroup");
+  foogroup_prototype = factory_.GetPrototype(foogroup_descriptor);
+  EXPECT_EQ(foogroup_prototype,
+            &reflection->GetMessage(
+                *message, descriptor->FindFieldByName("foogroup")));
+  EXPECT_NE(foogroup_prototype,
+            &reflection->GetMessage(
+                *message, descriptor->FindFieldByName("foo_lazy_message")));
+  EXPECT_EQ(5, reflection->GetInt32(
+      *message, descriptor->FindFieldByName("bar_int")));
+  EXPECT_EQ("STRING", reflection->GetString(
+      *message, descriptor->FindFieldByName("bar_string")));
+  EXPECT_EQ("CORD", reflection->GetString(
+      *message, descriptor->FindFieldByName("bar_cord")));
+  EXPECT_EQ("SPIECE", reflection->GetString(
+      *message, descriptor->FindFieldByName("bar_string_piece")));
+  EXPECT_EQ("BYTES", reflection->GetString(
+      *message, descriptor->FindFieldByName("bar_bytes")));
+  EXPECT_EQ(unittest::TestOneof2::BAR, reflection->GetEnum(
+      *message, descriptor->FindFieldByName("bar_enum"))->number());
+
+  // Check set functions.
+  TestUtil::ReflectionTester reflection_tester(oneof_descriptor_);
+  reflection_tester.SetOneofViaReflection(message.get());
+  reflection_tester.ExpectOneofSetViaReflection(*message);
+}
+
+TEST_F(DynamicMessageTest, SpaceUsed) {
+  // Test that SpaceUsed() works properly
+
+  // Since we share the implementation with generated messages, we don't need
+  // to test very much here.  Just make sure it appears to be working.
+
+  google::protobuf::scoped_ptr<Message> message(prototype_->New());
+  TestUtil::ReflectionTester reflection_tester(descriptor_);
+
+  int initial_space_used = message->SpaceUsed();
+
+  reflection_tester.SetAllFieldsViaReflection(message.get());
+  EXPECT_LT(initial_space_used, message->SpaceUsed());
+}
+
+TEST_F(DynamicMessageTest, Arena) {
+  Arena arena;
+  Message* message = prototype_->New(&arena);
+  (void)message;  // avoid unused-variable error.
+  // Return without freeing: should not leak.
+}
+
+TEST_F(DynamicMessageTest, Proto3) {
+  Message* message = proto3_prototype_->New();
+  const Reflection* refl = message->GetReflection();
+  const Descriptor* desc = message->GetDescriptor();
+
+  // Just test a single primtive and single message field here to make sure we
+  // are getting the no-field-presence semantics elsewhere. DynamicMessage uses
+  // GeneratedMessageReflection under the hood, so the rest should be fine as
+  // long as GMR recognizes that we're using a proto3 message.
+  const FieldDescriptor* optional_int32 =
+      desc->FindFieldByName("optional_int32");
+  const FieldDescriptor* optional_msg =
+      desc->FindFieldByName("optional_nested_message");
+  EXPECT_TRUE(optional_int32 != NULL);
+  EXPECT_TRUE(optional_msg != NULL);
+
+  EXPECT_EQ(false, refl->HasField(*message, optional_int32));
+  refl->SetInt32(message, optional_int32, 42);
+  EXPECT_EQ(true, refl->HasField(*message, optional_int32));
+  refl->SetInt32(message, optional_int32, 0);
+  EXPECT_EQ(false, refl->HasField(*message, optional_int32));
+
+  EXPECT_EQ(false, refl->HasField(*message, optional_msg));
+  refl->MutableMessage(message, optional_msg);
+  EXPECT_EQ(true, refl->HasField(*message, optional_msg));
+  delete refl->ReleaseMessage(message, optional_msg);
+  EXPECT_EQ(false, refl->HasField(*message, optional_msg));
+
+  // Also ensure that the default instance handles field presence properly.
+  EXPECT_EQ(false, refl->HasField(*proto3_prototype_, optional_msg));
+
+  delete message;
+}
+
+
+}  // namespace protobuf
+}  // namespace google