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, 485 insertions, 0 deletions

diff --git a/Firestore/Protos/cpp/google/rpc/status.pb.cc b/Firestore/Protos/cpp/google/rpc/status.pb.cc
new file mode 100644
index 0000000..d0213ae
--- /dev/null
+++ b/Firestore/Protos/cpp/google/rpc/status.pb.cc
@@ -0,0 +1,485 @@
+/*
+ * 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/rpc/status.proto
+
+#include "google/rpc/status.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 rpc {
+class StatusDefaultTypeInternal {
+ public:
+  ::google::protobuf::internal::ExplicitlyConstructed<Status>
+      _instance;
+} _Status_default_instance_;
+}  // namespace rpc
+}  // namespace google
+namespace protobuf_google_2frpc_2fstatus_2eproto {
+void InitDefaultsStatusImpl() {
+  GOOGLE_PROTOBUF_VERIFY_VERSION;
+
+#ifdef GOOGLE_PROTOBUF_ENFORCE_UNIQUENESS
+  ::google::protobuf::internal::InitProtobufDefaultsForceUnique();
+#else
+  ::google::protobuf::internal::InitProtobufDefaults();
+#endif  // GOOGLE_PROTOBUF_ENFORCE_UNIQUENESS
+  protobuf_google_2fprotobuf_2fany_2eproto::InitDefaultsAny();
+  {
+    void* ptr = &::google::rpc::_Status_default_instance_;
+    new (ptr) ::google::rpc::Status();
+    ::google::protobuf::internal::OnShutdownDestroyMessage(ptr);
+  }
+  ::google::rpc::Status::InitAsDefaultInstance();
+}
+
+void InitDefaultsStatus() {
+  static GOOGLE_PROTOBUF_DECLARE_ONCE(once);
+  ::google::protobuf::GoogleOnceInit(&once, &InitDefaultsStatusImpl);
+}
+
+::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::rpc::Status, _internal_metadata_),
+  ~0u,  // no _extensions_
+  ~0u,  // no _oneof_case_
+  ~0u,  // no _weak_field_map_
+  GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET(::google::rpc::Status, code_),
+  GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET(::google::rpc::Status, message_),
+  GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET(::google::rpc::Status, details_),
+};
+static const ::google::protobuf::internal::MigrationSchema schemas[] GOOGLE_PROTOBUF_ATTRIBUTE_SECTION_VARIABLE(protodesc_cold) = {
+  { 0, -1, sizeof(::google::rpc::Status)},
+};
+
+static ::google::protobuf::Message const * const file_default_instances[] = {
+  reinterpret_cast<const ::google::protobuf::Message*>(&::google::rpc::_Status_default_instance_),
+};
+
+void protobuf_AssignDescriptors() {
+  AddDescriptors();
+  ::google::protobuf::MessageFactory* factory = NULL;
+  AssignDescriptors(
+      "google/rpc/status.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\027google/rpc/status.proto\022\ngoogle.rpc\032\031g"
+      "oogle/protobuf/any.proto\"N\n\006Status\022\014\n\004co"
+      "de\030\001 \001(\005\022\017\n\007message\030\002 \001(\t\022%\n\007details\030\003 \003"
+      "(\0132\024.google.protobuf.AnyB^\n\016com.google.r"
+      "pcB\013StatusProtoP\001Z7google.golang.org/gen"
+      "proto/googleapis/rpc/status;status\242\002\003RPC"
+      "b\006proto3"
+  };
+  ::google::protobuf::DescriptorPool::InternalAddGeneratedFile(
+      descriptor, 248);
+  ::google::protobuf::MessageFactory::InternalRegisterGeneratedFile(
+    "google/rpc/status.proto", &protobuf_RegisterTypes);
+  ::protobuf_google_2fprotobuf_2fany_2eproto::AddDescriptors();
+}
+
+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_2frpc_2fstatus_2eproto
+namespace google {
+namespace rpc {
+
+// ===================================================================
+
+void Status::InitAsDefaultInstance() {
+}
+void Status::clear_details() {
+  details_.Clear();
+}
+#if !defined(_MSC_VER) || _MSC_VER >= 1900
+const int Status::kCodeFieldNumber;
+const int Status::kMessageFieldNumber;
+const int Status::kDetailsFieldNumber;
+#endif  // !defined(_MSC_VER) || _MSC_VER >= 1900
+
+Status::Status()
+  : ::google::protobuf::Message(), _internal_metadata_(NULL) {
+  if (GOOGLE_PREDICT_TRUE(this != internal_default_instance())) {
+    ::protobuf_google_2frpc_2fstatus_2eproto::InitDefaultsStatus();
+  }
+  SharedCtor();
+  // @@protoc_insertion_point(constructor:google.rpc.Status)
+}
+Status::Status(const Status& from)
+  : ::google::protobuf::Message(),
+      _internal_metadata_(NULL),
+      details_(from.details_),
+      _cached_size_(0) {
+  _internal_metadata_.MergeFrom(from._internal_metadata_);
+  message_.UnsafeSetDefault(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
+  if (from.message().size() > 0) {
+    message_.AssignWithDefault(&::google::protobuf::internal::GetEmptyStringAlreadyInited(), from.message_);
+  }
+  code_ = from.code_;
+  // @@protoc_insertion_point(copy_constructor:google.rpc.Status)
+}
+
+void Status::SharedCtor() {
+  message_.UnsafeSetDefault(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
+  code_ = 0;
+  _cached_size_ = 0;
+}
+
+Status::~Status() {
+  // @@protoc_insertion_point(destructor:google.rpc.Status)
+  SharedDtor();
+}
+
+void Status::SharedDtor() {
+  message_.DestroyNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
+}
+
+void Status::SetCachedSize(int size) const {
+  GOOGLE_SAFE_CONCURRENT_WRITES_BEGIN();
+  _cached_size_ = size;
+  GOOGLE_SAFE_CONCURRENT_WRITES_END();
+}
+const ::google::protobuf::Descriptor* Status::descriptor() {
+  ::protobuf_google_2frpc_2fstatus_2eproto::protobuf_AssignDescriptorsOnce();
+  return ::protobuf_google_2frpc_2fstatus_2eproto::file_level_metadata[kIndexInFileMessages].descriptor;
+}
+
+const Status& Status::default_instance() {
+  ::protobuf_google_2frpc_2fstatus_2eproto::InitDefaultsStatus();
+  return *internal_default_instance();
+}
+
+Status* Status::New(::google::protobuf::Arena* arena) const {
+  Status* n = new Status;
+  if (arena != NULL) {
+    arena->Own(n);
+  }
+  return n;
+}
+
+void Status::Clear() {
+// @@protoc_insertion_point(message_clear_start:google.rpc.Status)
+  ::google::protobuf::uint32 cached_has_bits = 0;
+  // Prevent compiler warnings about cached_has_bits being unused
+  (void) cached_has_bits;
+
+  details_.Clear();
+  message_.ClearToEmptyNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
+  code_ = 0;
+  _internal_metadata_.Clear();
+}
+
+bool Status::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.rpc.Status)
+  for (;;) {
+    ::std::pair< ::google::protobuf::uint32, bool> p = input->ReadTagWithCutoffNoLastTag(127u);
+    tag = p.first;
+    if (!p.second) goto handle_unusual;
+    switch (::google::protobuf::internal::WireFormatLite::GetTagFieldNumber(tag)) {
+      // int32 code = 1;
+      case 1: {
+        if (static_cast< ::google::protobuf::uint8>(tag) ==
+            static_cast< ::google::protobuf::uint8>(8u /* 8 & 0xFF */)) {
+
+          DO_((::google::protobuf::internal::WireFormatLite::ReadPrimitive<
+                   ::google::protobuf::int32, ::google::protobuf::internal::WireFormatLite::TYPE_INT32>(
+                 input, &code_)));
+        } else {
+          goto handle_unusual;
+        }
+        break;
+      }
+
+      // string message = 2;
+      case 2: {
+        if (static_cast< ::google::protobuf::uint8>(tag) ==
+            static_cast< ::google::protobuf::uint8>(18u /* 18 & 0xFF */)) {
+          DO_(::google::protobuf::internal::WireFormatLite::ReadString(
+                input, this->mutable_message()));
+          DO_(::google::protobuf::internal::WireFormatLite::VerifyUtf8String(
+            this->message().data(), static_cast<int>(this->message().length()),
+            ::google::protobuf::internal::WireFormatLite::PARSE,
+            "google.rpc.Status.message"));
+        } else {
+          goto handle_unusual;
+        }
+        break;
+      }
+
+      // repeated .google.protobuf.Any details = 3;
+      case 3: {
+        if (static_cast< ::google::protobuf::uint8>(tag) ==
+            static_cast< ::google::protobuf::uint8>(26u /* 26 & 0xFF */)) {
+          DO_(::google::protobuf::internal::WireFormatLite::ReadMessage(input, add_details()));
+        } else {
+          goto handle_unusual;
+        }
+        break;
+      }
+
+      default: {
+      handle_unusual:
+        if (tag == 0) {
+          goto success;
+        }
+        DO_(::google::protobuf::internal::WireFormat::SkipField(
+              input, tag, _internal_metadata_.mutable_unknown_fields()));
+        break;
+      }
+    }
+  }
+success:
+  // @@protoc_insertion_point(parse_success:google.rpc.Status)
+  return true;
+failure:
+  // @@protoc_insertion_point(parse_failure:google.rpc.Status)
+  return false;
+#undef DO_
+}
+
+void Status::SerializeWithCachedSizes(
+    ::google::protobuf::io::CodedOutputStream* output) const {
+  // @@protoc_insertion_point(serialize_start:google.rpc.Status)
+  ::google::protobuf::uint32 cached_has_bits = 0;
+  (void) cached_has_bits;
+
+  // int32 code = 1;
+  if (this->code() != 0) {
+    ::google::protobuf::internal::WireFormatLite::WriteInt32(1, this->code(), output);
+  }
+
+  // string message = 2;
+  if (this->message().size() > 0) {
+    ::google::protobuf::internal::WireFormatLite::VerifyUtf8String(
+      this->message().data(), static_cast<int>(this->message().length()),
+      ::google::protobuf::internal::WireFormatLite::SERIALIZE,
+      "google.rpc.Status.message");
+    ::google::protobuf::internal::WireFormatLite::WriteStringMaybeAliased(
+      2, this->message(), output);
+  }
+
+  // repeated .google.protobuf.Any details = 3;
+  for (unsigned int i = 0,
+      n = static_cast<unsigned int>(this->details_size()); i < n; i++) {
+    ::google::protobuf::internal::WireFormatLite::WriteMessageMaybeToArray(
+      3, this->details(static_cast<int>(i)), output);
+  }
+
+  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.rpc.Status)
+}
+
+::google::protobuf::uint8* Status::InternalSerializeWithCachedSizesToArray(
+    bool deterministic, ::google::protobuf::uint8* target) const {
+  (void)deterministic; // Unused
+  // @@protoc_insertion_point(serialize_to_array_start:google.rpc.Status)
+  ::google::protobuf::uint32 cached_has_bits = 0;
+  (void) cached_has_bits;
+
+  // int32 code = 1;
+  if (this->code() != 0) {
+    target = ::google::protobuf::internal::WireFormatLite::WriteInt32ToArray(1, this->code(), target);
+  }
+
+  // string message = 2;
+  if (this->message().size() > 0) {
+    ::google::protobuf::internal::WireFormatLite::VerifyUtf8String(
+      this->message().data(), static_cast<int>(this->message().length()),
+      ::google::protobuf::internal::WireFormatLite::SERIALIZE,
+      "google.rpc.Status.message");
+    target =
+      ::google::protobuf::internal::WireFormatLite::WriteStringToArray(
+        2, this->message(), target);
+  }
+
+  // repeated .google.protobuf.Any details = 3;
+  for (unsigned int i = 0,
+      n = static_cast<unsigned int>(this->details_size()); i < n; i++) {
+    target = ::google::protobuf::internal::WireFormatLite::
+      InternalWriteMessageToArray(
+        3, this->details(static_cast<int>(i)), deterministic, target);
+  }
+
+  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.rpc.Status)
+  return target;
+}
+
+size_t Status::ByteSizeLong() const {
+// @@protoc_insertion_point(message_byte_size_start:google.rpc.Status)
+  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()));
+  }
+  // repeated .google.protobuf.Any details = 3;
+  {
+    unsigned int count = static_cast<unsigned int>(this->details_size());
+    total_size += 1UL * count;
+    for (unsigned int i = 0; i < count; i++) {
+      total_size +=
+        ::google::protobuf::internal::WireFormatLite::MessageSize(
+          this->details(static_cast<int>(i)));
+    }
+  }
+
+  // string message = 2;
+  if (this->message().size() > 0) {
+    total_size += 1 +
+      ::google::protobuf::internal::WireFormatLite::StringSize(
+        this->message());
+  }
+
+  // int32 code = 1;
+  if (this->code() != 0) {
+    total_size += 1 +
+      ::google::protobuf::internal::WireFormatLite::Int32Size(
+        this->code());
+  }
+
+  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 Status::MergeFrom(const ::google::protobuf::Message& from) {
+// @@protoc_insertion_point(generalized_merge_from_start:google.rpc.Status)
+  GOOGLE_DCHECK_NE(&from, this);
+  const Status* source =
+      ::google::protobuf::internal::DynamicCastToGenerated<const Status>(
+          &from);
+  if (source == NULL) {
+  // @@protoc_insertion_point(generalized_merge_from_cast_fail:google.rpc.Status)
+    ::google::protobuf::internal::ReflectionOps::Merge(from, this);
+  } else {
+  // @@protoc_insertion_point(generalized_merge_from_cast_success:google.rpc.Status)
+    MergeFrom(*source);
+  }
+}
+
+void Status::MergeFrom(const Status& from) {
+// @@protoc_insertion_point(class_specific_merge_from_start:google.rpc.Status)
+  GOOGLE_DCHECK_NE(&from, this);
+  _internal_metadata_.MergeFrom(from._internal_metadata_);
+  ::google::protobuf::uint32 cached_has_bits = 0;
+  (void) cached_has_bits;
+
+  details_.MergeFrom(from.details_);
+  if (from.message().size() > 0) {
+
+    message_.AssignWithDefault(&::google::protobuf::internal::GetEmptyStringAlreadyInited(), from.message_);
+  }
+  if (from.code() != 0) {
+    set_code(from.code());
+  }
+}
+
+void Status::CopyFrom(const ::google::protobuf::Message& from) {
+// @@protoc_insertion_point(generalized_copy_from_start:google.rpc.Status)
+  if (&from == this) return;
+  Clear();
+  MergeFrom(from);
+}
+
+void Status::CopyFrom(const Status& from) {
+// @@protoc_insertion_point(class_specific_copy_from_start:google.rpc.Status)
+  if (&from == this) return;
+  Clear();
+  MergeFrom(from);
+}
+
+bool Status::IsInitialized() const {
+  return true;
+}
+
+void Status::Swap(Status* other) {
+  if (other == this) return;
+  InternalSwap(other);
+}
+void Status::InternalSwap(Status* other) {
+  using std::swap;
+  details_.InternalSwap(&other->details_);
+  message_.Swap(&other->message_);
+  swap(code_, other->code_);
+  _internal_metadata_.Swap(&other->_internal_metadata_);
+  swap(_cached_size_, other->_cached_size_);
+}
+
+::google::protobuf::Metadata Status::GetMetadata() const {
+  protobuf_google_2frpc_2fstatus_2eproto::protobuf_AssignDescriptorsOnce();
+  return ::protobuf_google_2frpc_2fstatus_2eproto::file_level_metadata[kIndexInFileMessages];
+}
+
+
+// @@protoc_insertion_point(namespace_scope)
+}  // namespace rpc
+}  // namespace google
+
+// @@protoc_insertion_point(global_scope)