Adjust serializer test to verify via libprotobuf. (#1039)

Previously, the tests would compare serialization results against a
precomputed (via protoc) array of bytes. Now they serialize via our
nanopb based class and deserialize via libprotobuf (and vice versa) and
then ensure the result is the same as the input

1 files changed, 358 insertions, 0 deletions

diff --git a/Firestore/Protos/cpp/google/protobuf/empty.pb.cc b/Firestore/Protos/cpp/google/protobuf/empty.pb.cc
new file mode 100644
index 0000000..dfed277
--- /dev/null
+++ b/Firestore/Protos/cpp/google/protobuf/empty.pb.cc
@@ -0,0 +1,358 @@
+/*
+ * Copyright 2018 Google
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/protobuf/empty.proto
+
+#include <google/protobuf/empty.pb.h>
+
+#include <algorithm>
+
+#include <google/protobuf/stubs/common.h>
+#include <google/protobuf/stubs/port.h>
+#include <google/protobuf/stubs/once.h>
+#include <google/protobuf/io/coded_stream.h>
+#include <google/protobuf/wire_format_lite_inl.h>
+#include <google/protobuf/descriptor.h>
+#include <google/protobuf/generated_message_reflection.h>
+#include <google/protobuf/reflection_ops.h>
+#include <google/protobuf/wire_format.h>
+// This is a temporary google only hack
+#ifdef GOOGLE_PROTOBUF_ENFORCE_UNIQUENESS
+#include "third_party/protobuf/version.h"
+#endif
+// @@protoc_insertion_point(includes)
+namespace google {
+namespace protobuf {
+class EmptyDefaultTypeInternal {
+ public:
+  ::google::protobuf::internal::ExplicitlyConstructed<Empty>
+      _instance;
+} _Empty_default_instance_;
+}  // namespace protobuf
+}  // namespace google
+namespace protobuf_google_2fprotobuf_2fempty_2eproto {
+void InitDefaultsEmptyImpl() {
+  GOOGLE_PROTOBUF_VERIFY_VERSION;
+
+#ifdef GOOGLE_PROTOBUF_ENFORCE_UNIQUENESS
+  ::google::protobuf::internal::InitProtobufDefaultsForceUnique();
+#else
+  ::google::protobuf::internal::InitProtobufDefaults();
+#endif  // GOOGLE_PROTOBUF_ENFORCE_UNIQUENESS
+  {
+    void* ptr = &::google::protobuf::_Empty_default_instance_;
+    new (ptr) ::google::protobuf::Empty();
+    ::google::protobuf::internal::OnShutdownDestroyMessage(ptr);
+  }
+  ::google::protobuf::Empty::InitAsDefaultInstance();
+}
+
+void InitDefaultsEmpty() {
+  static GOOGLE_PROTOBUF_DECLARE_ONCE(once);
+  ::google::protobuf::GoogleOnceInit(&once, &InitDefaultsEmptyImpl);
+}
+
+::google::protobuf::Metadata file_level_metadata[1];
+
+const ::google::protobuf::uint32 TableStruct::offsets[] GOOGLE_PROTOBUF_ATTRIBUTE_SECTION_VARIABLE(protodesc_cold) = {
+  ~0u,  // no _has_bits_
+  GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET(::google::protobuf::Empty, _internal_metadata_),
+  ~0u,  // no _extensions_
+  ~0u,  // no _oneof_case_
+  ~0u,  // no _weak_field_map_
+};
+static const ::google::protobuf::internal::MigrationSchema schemas[] GOOGLE_PROTOBUF_ATTRIBUTE_SECTION_VARIABLE(protodesc_cold) = {
+  { 0, -1, sizeof(::google::protobuf::Empty)},
+};
+
+static ::google::protobuf::Message const * const file_default_instances[] = {
+  reinterpret_cast<const ::google::protobuf::Message*>(&::google::protobuf::_Empty_default_instance_),
+};
+
+void protobuf_AssignDescriptors() {
+  AddDescriptors();
+  ::google::protobuf::MessageFactory* factory = NULL;
+  AssignDescriptors(
+      "google/protobuf/empty.proto", schemas, file_default_instances, TableStruct::offsets, factory,
+      file_level_metadata, NULL, NULL);
+}
+
+void protobuf_AssignDescriptorsOnce() {
+  static GOOGLE_PROTOBUF_DECLARE_ONCE(once);
+  ::google::protobuf::GoogleOnceInit(&once, &protobuf_AssignDescriptors);
+}
+
+void protobuf_RegisterTypes(const ::std::string&) GOOGLE_PROTOBUF_ATTRIBUTE_COLD;
+void protobuf_RegisterTypes(const ::std::string&) {
+  protobuf_AssignDescriptorsOnce();
+  ::google::protobuf::internal::RegisterAllTypes(file_level_metadata, 1);
+}
+
+void AddDescriptorsImpl() {
+  InitDefaults();
+  static const char descriptor[] GOOGLE_PROTOBUF_ATTRIBUTE_SECTION_VARIABLE(protodesc_cold) = {
+      "\n\033google/protobuf/empty.proto\022\017google.pr"
+      "otobuf\"\007\n\005EmptyBv\n\023com.google.protobufB\n"
+      "EmptyProtoP\001Z\'github.com/golang/protobuf"
+      "/ptypes/empty\370\001\001\242\002\003GPB\252\002\036Google.Protobuf"
+      ".WellKnownTypesb\006proto3"
+  };
+  ::google::protobuf::DescriptorPool::InternalAddGeneratedFile(
+      descriptor, 183);
+  ::google::protobuf::MessageFactory::InternalRegisterGeneratedFile(
+    "google/protobuf/empty.proto", &protobuf_RegisterTypes);
+}
+
+void AddDescriptors() {
+  static GOOGLE_PROTOBUF_DECLARE_ONCE(once);
+  ::google::protobuf::GoogleOnceInit(&once, &AddDescriptorsImpl);
+}
+// Force AddDescriptors() to be called at dynamic initialization time.
+struct StaticDescriptorInitializer {
+  StaticDescriptorInitializer() {
+    AddDescriptors();
+  }
+} static_descriptor_initializer;
+}  // namespace protobuf_google_2fprotobuf_2fempty_2eproto
+namespace google {
+namespace protobuf {
+
+// ===================================================================
+
+void Empty::InitAsDefaultInstance() {
+}
+#if !defined(_MSC_VER) || _MSC_VER >= 1900
+#endif  // !defined(_MSC_VER) || _MSC_VER >= 1900
+
+Empty::Empty()
+  : ::google::protobuf::Message(), _internal_metadata_(NULL) {
+  if (GOOGLE_PREDICT_TRUE(this != internal_default_instance())) {
+    ::protobuf_google_2fprotobuf_2fempty_2eproto::InitDefaultsEmpty();
+  }
+  SharedCtor();
+  // @@protoc_insertion_point(constructor:google.protobuf.Empty)
+}
+Empty::Empty(::google::protobuf::Arena* arena)
+  : ::google::protobuf::Message(),
+  _internal_metadata_(arena) {
+  ::protobuf_google_2fprotobuf_2fempty_2eproto::InitDefaultsEmpty();
+  SharedCtor();
+  RegisterArenaDtor(arena);
+  // @@protoc_insertion_point(arena_constructor:google.protobuf.Empty)
+}
+Empty::Empty(const Empty& from)
+  : ::google::protobuf::Message(),
+      _internal_metadata_(NULL),
+      _cached_size_(0) {
+  _internal_metadata_.MergeFrom(from._internal_metadata_);
+  // @@protoc_insertion_point(copy_constructor:google.protobuf.Empty)
+}
+
+void Empty::SharedCtor() {
+  _cached_size_ = 0;
+}
+
+Empty::~Empty() {
+  // @@protoc_insertion_point(destructor:google.protobuf.Empty)
+  SharedDtor();
+}
+
+void Empty::SharedDtor() {
+  GOOGLE_DCHECK(GetArenaNoVirtual() == NULL);
+}
+
+void Empty::ArenaDtor(void* object) {
+  Empty* _this = reinterpret_cast< Empty* >(object);
+  (void)_this;
+}
+void Empty::RegisterArenaDtor(::google::protobuf::Arena* arena) {
+}
+void Empty::SetCachedSize(int size) const {
+  GOOGLE_SAFE_CONCURRENT_WRITES_BEGIN();
+  _cached_size_ = size;
+  GOOGLE_SAFE_CONCURRENT_WRITES_END();
+}
+const ::google::protobuf::Descriptor* Empty::descriptor() {
+  ::protobuf_google_2fprotobuf_2fempty_2eproto::protobuf_AssignDescriptorsOnce();
+  return ::protobuf_google_2fprotobuf_2fempty_2eproto::file_level_metadata[kIndexInFileMessages].descriptor;
+}
+
+const Empty& Empty::default_instance() {
+  ::protobuf_google_2fprotobuf_2fempty_2eproto::InitDefaultsEmpty();
+  return *internal_default_instance();
+}
+
+Empty* Empty::New(::google::protobuf::Arena* arena) const {
+  return ::google::protobuf::Arena::CreateMessage<Empty>(arena);
+}
+
+void Empty::Clear() {
+// @@protoc_insertion_point(message_clear_start:google.protobuf.Empty)
+  ::google::protobuf::uint32 cached_has_bits = 0;
+  // Prevent compiler warnings about cached_has_bits being unused
+  (void) cached_has_bits;
+
+  _internal_metadata_.Clear();
+}
+
+bool Empty::MergePartialFromCodedStream(
+    ::google::protobuf::io::CodedInputStream* input) {
+#define DO_(EXPRESSION) if (!GOOGLE_PREDICT_TRUE(EXPRESSION)) goto failure
+  ::google::protobuf::uint32 tag;
+  // @@protoc_insertion_point(parse_start:google.protobuf.Empty)
+  for (;;) {
+    ::std::pair< ::google::protobuf::uint32, bool> p = input->ReadTagWithCutoffNoLastTag(127u);
+    tag = p.first;
+    if (!p.second) goto handle_unusual;
+  handle_unusual:
+    if (tag == 0) {
+      goto success;
+    }
+    DO_(::google::protobuf::internal::WireFormat::SkipField(
+          input, tag, _internal_metadata_.mutable_unknown_fields()));
+  }
+success:
+  // @@protoc_insertion_point(parse_success:google.protobuf.Empty)
+  return true;
+failure:
+  // @@protoc_insertion_point(parse_failure:google.protobuf.Empty)
+  return false;
+#undef DO_
+}
+
+void Empty::SerializeWithCachedSizes(
+    ::google::protobuf::io::CodedOutputStream* output) const {
+  // @@protoc_insertion_point(serialize_start:google.protobuf.Empty)
+  ::google::protobuf::uint32 cached_has_bits = 0;
+  (void) cached_has_bits;
+
+  if ((_internal_metadata_.have_unknown_fields() &&  ::google::protobuf::internal::GetProto3PreserveUnknownsDefault())) {
+    ::google::protobuf::internal::WireFormat::SerializeUnknownFields(
+        (::google::protobuf::internal::GetProto3PreserveUnknownsDefault()   ? _internal_metadata_.unknown_fields()   : _internal_metadata_.default_instance()), output);
+  }
+  // @@protoc_insertion_point(serialize_end:google.protobuf.Empty)
+}
+
+::google::protobuf::uint8* Empty::InternalSerializeWithCachedSizesToArray(
+    bool deterministic, ::google::protobuf::uint8* target) const {
+  (void)deterministic; // Unused
+  // @@protoc_insertion_point(serialize_to_array_start:google.protobuf.Empty)
+  ::google::protobuf::uint32 cached_has_bits = 0;
+  (void) cached_has_bits;
+
+  if ((_internal_metadata_.have_unknown_fields() &&  ::google::protobuf::internal::GetProto3PreserveUnknownsDefault())) {
+    target = ::google::protobuf::internal::WireFormat::SerializeUnknownFieldsToArray(
+        (::google::protobuf::internal::GetProto3PreserveUnknownsDefault()   ? _internal_metadata_.unknown_fields()   : _internal_metadata_.default_instance()), target);
+  }
+  // @@protoc_insertion_point(serialize_to_array_end:google.protobuf.Empty)
+  return target;
+}
+
+size_t Empty::ByteSizeLong() const {
+// @@protoc_insertion_point(message_byte_size_start:google.protobuf.Empty)
+  size_t total_size = 0;
+
+  if ((_internal_metadata_.have_unknown_fields() &&  ::google::protobuf::internal::GetProto3PreserveUnknownsDefault())) {
+    total_size +=
+      ::google::protobuf::internal::WireFormat::ComputeUnknownFieldsSize(
+        (::google::protobuf::internal::GetProto3PreserveUnknownsDefault()   ? _internal_metadata_.unknown_fields()   : _internal_metadata_.default_instance()));
+  }
+  int cached_size = ::google::protobuf::internal::ToCachedSize(total_size);
+  GOOGLE_SAFE_CONCURRENT_WRITES_BEGIN();
+  _cached_size_ = cached_size;
+  GOOGLE_SAFE_CONCURRENT_WRITES_END();
+  return total_size;
+}
+
+void Empty::MergeFrom(const ::google::protobuf::Message& from) {
+// @@protoc_insertion_point(generalized_merge_from_start:google.protobuf.Empty)
+  GOOGLE_DCHECK_NE(&from, this);
+  const Empty* source =
+      ::google::protobuf::internal::DynamicCastToGenerated<const Empty>(
+          &from);
+  if (source == NULL) {
+  // @@protoc_insertion_point(generalized_merge_from_cast_fail:google.protobuf.Empty)
+    ::google::protobuf::internal::ReflectionOps::Merge(from, this);
+  } else {
+  // @@protoc_insertion_point(generalized_merge_from_cast_success:google.protobuf.Empty)
+    MergeFrom(*source);
+  }
+}
+
+void Empty::MergeFrom(const Empty& from) {
+// @@protoc_insertion_point(class_specific_merge_from_start:google.protobuf.Empty)
+  GOOGLE_DCHECK_NE(&from, this);
+  _internal_metadata_.MergeFrom(from._internal_metadata_);
+  ::google::protobuf::uint32 cached_has_bits = 0;
+  (void) cached_has_bits;
+
+}
+
+void Empty::CopyFrom(const ::google::protobuf::Message& from) {
+// @@protoc_insertion_point(generalized_copy_from_start:google.protobuf.Empty)
+  if (&from == this) return;
+  Clear();
+  MergeFrom(from);
+}
+
+void Empty::CopyFrom(const Empty& from) {
+// @@protoc_insertion_point(class_specific_copy_from_start:google.protobuf.Empty)
+  if (&from == this) return;
+  Clear();
+  MergeFrom(from);
+}
+
+bool Empty::IsInitialized() const {
+  return true;
+}
+
+void Empty::Swap(Empty* other) {
+  if (other == this) return;
+  if (GetArenaNoVirtual() == other->GetArenaNoVirtual()) {
+    InternalSwap(other);
+  } else {
+    Empty* temp = New(GetArenaNoVirtual());
+    temp->MergeFrom(*other);
+    other->CopyFrom(*this);
+    InternalSwap(temp);
+    if (GetArenaNoVirtual() == NULL) {
+      delete temp;
+    }
+  }
+}
+void Empty::UnsafeArenaSwap(Empty* other) {
+  if (other == this) return;
+  GOOGLE_DCHECK(GetArenaNoVirtual() == other->GetArenaNoVirtual());
+  InternalSwap(other);
+}
+void Empty::InternalSwap(Empty* other) {
+  using std::swap;
+  _internal_metadata_.Swap(&other->_internal_metadata_);
+  swap(_cached_size_, other->_cached_size_);
+}
+
+::google::protobuf::Metadata Empty::GetMetadata() const {
+  protobuf_google_2fprotobuf_2fempty_2eproto::protobuf_AssignDescriptorsOnce();
+  return ::protobuf_google_2fprotobuf_2fempty_2eproto::file_level_metadata[kIndexInFileMessages];
+}
+
+
+// @@protoc_insertion_point(namespace_scope)
+}  // namespace protobuf
+}  // namespace google
+
+// @@protoc_insertion_point(global_scope)