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, 456 insertions, 0 deletions

diff --git a/Firestore/Protos/cpp/google/protobuf/any.pb.cc b/Firestore/Protos/cpp/google/protobuf/any.pb.cc
new file mode 100644
index 0000000..6f7c576
--- /dev/null
+++ b/Firestore/Protos/cpp/google/protobuf/any.pb.cc
@@ -0,0 +1,456 @@
+/*
+ * 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/any.proto
+
+#include <google/protobuf/any.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 AnyDefaultTypeInternal {
+ public:
+  ::google::protobuf::internal::ExplicitlyConstructed<Any>
+      _instance;
+} _Any_default_instance_;
+}  // namespace protobuf
+}  // namespace google
+namespace protobuf_google_2fprotobuf_2fany_2eproto {
+void InitDefaultsAnyImpl() {
+  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::_Any_default_instance_;
+    new (ptr) ::google::protobuf::Any();
+    ::google::protobuf::internal::OnShutdownDestroyMessage(ptr);
+  }
+  ::google::protobuf::Any::InitAsDefaultInstance();
+}
+
+void InitDefaultsAny() {
+  static GOOGLE_PROTOBUF_DECLARE_ONCE(once);
+  ::google::protobuf::GoogleOnceInit(&once, &InitDefaultsAnyImpl);
+}
+
+::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::Any, _internal_metadata_),
+  ~0u,  // no _extensions_
+  ~0u,  // no _oneof_case_
+  ~0u,  // no _weak_field_map_
+  GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET(::google::protobuf::Any, type_url_),
+  GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET(::google::protobuf::Any, value_),
+};
+static const ::google::protobuf::internal::MigrationSchema schemas[] GOOGLE_PROTOBUF_ATTRIBUTE_SECTION_VARIABLE(protodesc_cold) = {
+  { 0, -1, sizeof(::google::protobuf::Any)},
+};
+
+static ::google::protobuf::Message const * const file_default_instances[] = {
+  reinterpret_cast<const ::google::protobuf::Message*>(&::google::protobuf::_Any_default_instance_),
+};
+
+void protobuf_AssignDescriptors() {
+  AddDescriptors();
+  ::google::protobuf::MessageFactory* factory = NULL;
+  AssignDescriptors(
+      "google/protobuf/any.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\031google/protobuf/any.proto\022\017google.prot"
+      "obuf\"&\n\003Any\022\020\n\010type_url\030\001 \001(\t\022\r\n\005value\030\002"
+      " \001(\014Bo\n\023com.google.protobufB\010AnyProtoP\001Z"
+      "%github.com/golang/protobuf/ptypes/any\242\002"
+      "\003GPB\252\002\036Google.Protobuf.WellKnownTypesb\006p"
+      "roto3"
+  };
+  ::google::protobuf::DescriptorPool::InternalAddGeneratedFile(
+      descriptor, 205);
+  ::google::protobuf::MessageFactory::InternalRegisterGeneratedFile(
+    "google/protobuf/any.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_2fany_2eproto
+namespace google {
+namespace protobuf {
+
+// ===================================================================
+
+void Any::InitAsDefaultInstance() {
+}
+void Any::PackFrom(const ::google::protobuf::Message& message) {
+  _any_metadata_.PackFrom(message);
+}
+
+void Any::PackFrom(const ::google::protobuf::Message& message,
+                           const ::std::string& type_url_prefix) {
+  _any_metadata_.PackFrom(message, type_url_prefix);
+}
+
+bool Any::UnpackTo(::google::protobuf::Message* message) const {
+  return _any_metadata_.UnpackTo(message);
+}
+
+#if !defined(_MSC_VER) || _MSC_VER >= 1900
+const int Any::kTypeUrlFieldNumber;
+const int Any::kValueFieldNumber;
+#endif  // !defined(_MSC_VER) || _MSC_VER >= 1900
+
+Any::Any()
+  : ::google::protobuf::Message(), _internal_metadata_(NULL), _any_metadata_(&type_url_, &value_) {
+  if (GOOGLE_PREDICT_TRUE(this != internal_default_instance())) {
+    ::protobuf_google_2fprotobuf_2fany_2eproto::InitDefaultsAny();
+  }
+  SharedCtor();
+  // @@protoc_insertion_point(constructor:google.protobuf.Any)
+}
+Any::Any(const Any& from)
+  : ::google::protobuf::Message(),
+      _internal_metadata_(NULL),
+      _cached_size_(0),
+      _any_metadata_(&type_url_, &value_) {
+  _internal_metadata_.MergeFrom(from._internal_metadata_);
+  type_url_.UnsafeSetDefault(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
+  if (from.type_url().size() > 0) {
+    type_url_.AssignWithDefault(&::google::protobuf::internal::GetEmptyStringAlreadyInited(), from.type_url_);
+  }
+  value_.UnsafeSetDefault(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
+  if (from.value().size() > 0) {
+    value_.AssignWithDefault(&::google::protobuf::internal::GetEmptyStringAlreadyInited(), from.value_);
+  }
+  // @@protoc_insertion_point(copy_constructor:google.protobuf.Any)
+}
+
+void Any::SharedCtor() {
+  type_url_.UnsafeSetDefault(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
+  value_.UnsafeSetDefault(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
+  _cached_size_ = 0;
+}
+
+Any::~Any() {
+  // @@protoc_insertion_point(destructor:google.protobuf.Any)
+  SharedDtor();
+}
+
+void Any::SharedDtor() {
+  type_url_.DestroyNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
+  value_.DestroyNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
+}
+
+void Any::SetCachedSize(int size) const {
+  GOOGLE_SAFE_CONCURRENT_WRITES_BEGIN();
+  _cached_size_ = size;
+  GOOGLE_SAFE_CONCURRENT_WRITES_END();
+}
+const ::google::protobuf::Descriptor* Any::descriptor() {
+  ::protobuf_google_2fprotobuf_2fany_2eproto::protobuf_AssignDescriptorsOnce();
+  return ::protobuf_google_2fprotobuf_2fany_2eproto::file_level_metadata[kIndexInFileMessages].descriptor;
+}
+
+const Any& Any::default_instance() {
+  ::protobuf_google_2fprotobuf_2fany_2eproto::InitDefaultsAny();
+  return *internal_default_instance();
+}
+
+Any* Any::New(::google::protobuf::Arena* arena) const {
+  Any* n = new Any;
+  if (arena != NULL) {
+    arena->Own(n);
+  }
+  return n;
+}
+
+void Any::Clear() {
+// @@protoc_insertion_point(message_clear_start:google.protobuf.Any)
+  ::google::protobuf::uint32 cached_has_bits = 0;
+  // Prevent compiler warnings about cached_has_bits being unused
+  (void) cached_has_bits;
+
+  type_url_.ClearToEmptyNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
+  value_.ClearToEmptyNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
+  _internal_metadata_.Clear();
+}
+
+bool Any::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.Any)
+  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)) {
+      // string type_url = 1;
+      case 1: {
+        if (static_cast< ::google::protobuf::uint8>(tag) ==
+            static_cast< ::google::protobuf::uint8>(10u /* 10 & 0xFF */)) {
+          DO_(::google::protobuf::internal::WireFormatLite::ReadString(
+                input, this->mutable_type_url()));
+          DO_(::google::protobuf::internal::WireFormatLite::VerifyUtf8String(
+            this->type_url().data(), static_cast<int>(this->type_url().length()),
+            ::google::protobuf::internal::WireFormatLite::PARSE,
+            "google.protobuf.Any.type_url"));
+        } else {
+          goto handle_unusual;
+        }
+        break;
+      }
+
+      // bytes value = 2;
+      case 2: {
+        if (static_cast< ::google::protobuf::uint8>(tag) ==
+            static_cast< ::google::protobuf::uint8>(18u /* 18 & 0xFF */)) {
+          DO_(::google::protobuf::internal::WireFormatLite::ReadBytes(
+                input, this->mutable_value()));
+        } 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.protobuf.Any)
+  return true;
+failure:
+  // @@protoc_insertion_point(parse_failure:google.protobuf.Any)
+  return false;
+#undef DO_
+}
+
+void Any::SerializeWithCachedSizes(
+    ::google::protobuf::io::CodedOutputStream* output) const {
+  // @@protoc_insertion_point(serialize_start:google.protobuf.Any)
+  ::google::protobuf::uint32 cached_has_bits = 0;
+  (void) cached_has_bits;
+
+  // string type_url = 1;
+  if (this->type_url().size() > 0) {
+    ::google::protobuf::internal::WireFormatLite::VerifyUtf8String(
+      this->type_url().data(), static_cast<int>(this->type_url().length()),
+      ::google::protobuf::internal::WireFormatLite::SERIALIZE,
+      "google.protobuf.Any.type_url");
+    ::google::protobuf::internal::WireFormatLite::WriteStringMaybeAliased(
+      1, this->type_url(), output);
+  }
+
+  // bytes value = 2;
+  if (this->value().size() > 0) {
+    ::google::protobuf::internal::WireFormatLite::WriteBytesMaybeAliased(
+      2, this->value(), 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.protobuf.Any)
+}
+
+::google::protobuf::uint8* Any::InternalSerializeWithCachedSizesToArray(
+    bool deterministic, ::google::protobuf::uint8* target) const {
+  (void)deterministic; // Unused
+  // @@protoc_insertion_point(serialize_to_array_start:google.protobuf.Any)
+  ::google::protobuf::uint32 cached_has_bits = 0;
+  (void) cached_has_bits;
+
+  // string type_url = 1;
+  if (this->type_url().size() > 0) {
+    ::google::protobuf::internal::WireFormatLite::VerifyUtf8String(
+      this->type_url().data(), static_cast<int>(this->type_url().length()),
+      ::google::protobuf::internal::WireFormatLite::SERIALIZE,
+      "google.protobuf.Any.type_url");
+    target =
+      ::google::protobuf::internal::WireFormatLite::WriteStringToArray(
+        1, this->type_url(), target);
+  }
+
+  // bytes value = 2;
+  if (this->value().size() > 0) {
+    target =
+      ::google::protobuf::internal::WireFormatLite::WriteBytesToArray(
+        2, this->value(), 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.protobuf.Any)
+  return target;
+}
+
+size_t Any::ByteSizeLong() const {
+// @@protoc_insertion_point(message_byte_size_start:google.protobuf.Any)
+  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()));
+  }
+  // string type_url = 1;
+  if (this->type_url().size() > 0) {
+    total_size += 1 +
+      ::google::protobuf::internal::WireFormatLite::StringSize(
+        this->type_url());
+  }
+
+  // bytes value = 2;
+  if (this->value().size() > 0) {
+    total_size += 1 +
+      ::google::protobuf::internal::WireFormatLite::BytesSize(
+        this->value());
+  }
+
+  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 Any::MergeFrom(const ::google::protobuf::Message& from) {
+// @@protoc_insertion_point(generalized_merge_from_start:google.protobuf.Any)
+  GOOGLE_DCHECK_NE(&from, this);
+  const Any* source =
+      ::google::protobuf::internal::DynamicCastToGenerated<const Any>(
+          &from);
+  if (source == NULL) {
+  // @@protoc_insertion_point(generalized_merge_from_cast_fail:google.protobuf.Any)
+    ::google::protobuf::internal::ReflectionOps::Merge(from, this);
+  } else {
+  // @@protoc_insertion_point(generalized_merge_from_cast_success:google.protobuf.Any)
+    MergeFrom(*source);
+  }
+}
+
+void Any::MergeFrom(const Any& from) {
+// @@protoc_insertion_point(class_specific_merge_from_start:google.protobuf.Any)
+  GOOGLE_DCHECK_NE(&from, this);
+  _internal_metadata_.MergeFrom(from._internal_metadata_);
+  ::google::protobuf::uint32 cached_has_bits = 0;
+  (void) cached_has_bits;
+
+  if (from.type_url().size() > 0) {
+
+    type_url_.AssignWithDefault(&::google::protobuf::internal::GetEmptyStringAlreadyInited(), from.type_url_);
+  }
+  if (from.value().size() > 0) {
+
+    value_.AssignWithDefault(&::google::protobuf::internal::GetEmptyStringAlreadyInited(), from.value_);
+  }
+}
+
+void Any::CopyFrom(const ::google::protobuf::Message& from) {
+// @@protoc_insertion_point(generalized_copy_from_start:google.protobuf.Any)
+  if (&from == this) return;
+  Clear();
+  MergeFrom(from);
+}
+
+void Any::CopyFrom(const Any& from) {
+// @@protoc_insertion_point(class_specific_copy_from_start:google.protobuf.Any)
+  if (&from == this) return;
+  Clear();
+  MergeFrom(from);
+}
+
+bool Any::IsInitialized() const {
+  return true;
+}
+
+void Any::Swap(Any* other) {
+  if (other == this) return;
+  InternalSwap(other);
+}
+void Any::InternalSwap(Any* other) {
+  using std::swap;
+  type_url_.Swap(&other->type_url_);
+  value_.Swap(&other->value_);
+  _internal_metadata_.Swap(&other->_internal_metadata_);
+  swap(_cached_size_, other->_cached_size_);
+}
+
+::google::protobuf::Metadata Any::GetMetadata() const {
+  protobuf_google_2fprotobuf_2fany_2eproto::protobuf_AssignDescriptorsOnce();
+  return ::protobuf_google_2fprotobuf_2fany_2eproto::file_level_metadata[kIndexInFileMessages];
+}
+
+
+// @@protoc_insertion_point(namespace_scope)
+}  // namespace protobuf
+}  // namespace google
+
+// @@protoc_insertion_point(global_scope)