src/trace_processor/metrics/metrics_unittest.cc - third_party/perfetto - Git at Google

 /*
  * Copyright (C) 2019 The Android Open Source Project
  *
  * 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.
  */

 #include "src/trace_processor/metrics/metrics.h"

 #include <cstdint>
 #include <optional>
 #include <string>
 #include <unordered_map>
 #include <vector>

 #include "perfetto/protozero/field.h"
 #include "perfetto/protozero/proto_decoder.h"
 #include "perfetto/protozero/proto_utils.h"
 #include "perfetto/trace_processor/basic_types.h"
 #include "protos/perfetto/common/descriptor.pbzero.h"
 #include "src/base/test/status_matchers.h"
 #include "src/trace_processor/util/descriptors.h"
 #include "test/gtest_and_gmock.h"

 #include "protos/perfetto/trace_processor/metrics_impl.pbzero.h"

 namespace perfetto::trace_processor::metrics {
 namespace {
 using base::gtest_matchers::IsError;

 using base::gtest_matchers::IsError;
 using testing::IsEmpty;

 std::string RunTemplateReplace(
     const std::string& str,
     const std::unordered_map<std::string, std::string>& subs) {
   std::string out;
   EXPECT_EQ(TemplateReplace(str, subs, &out), 0);
   return out;
 }

 TEST(MetricsTest, TemplateReplace) {
   auto res = RunTemplateReplace("no templates here", {});
   ASSERT_EQ(res, "no templates here");

   res = RunTemplateReplace("{{justtemplate}}", {{"justtemplate", "result"}});
   ASSERT_EQ(res, "result");

   res = RunTemplateReplace("{{temp1}} {{temp2}}!",
                            {{"temp1", "hello"}, {"temp2", "world"}});
   ASSERT_EQ(res, "hello world!");

   std::string unused;
   ASSERT_NE(TemplateReplace("{{missing}}", {{}}, &unused), 0);
 }

 class ProtoBuilderTest : public ::testing::Test {
  protected:
   template <bool repeated>
   protozero::TypedProtoDecoder<1, repeated> DecodeSingleFieldProto(
       const std::vector<uint8_t>& result_ser) {
     protos::pbzero::ProtoBuilderResult::Decoder result(result_ser.data(),
                                                        result_ser.size());
     protos::pbzero::SingleBuilderResult::Decoder single(result.single());
     protozero::ConstBytes proto_ser = single.protobuf();
     return protozero::TypedProtoDecoder<1, repeated>(proto_ser.data,
                                                      proto_ser.size);
   }
 };

 TEST_F(ProtoBuilderTest, AppendLong) {
   using FieldDescriptorProto = protos::pbzero::FieldDescriptorProto;

   // Create the descriptor version of the following message:
   // message TestProto {
   //   optional int64 int_value = 1;
   // }
   DescriptorPool pool;
   ProtoDescriptor descriptor("file.proto", ".perfetto.protos",
                              ".perfetto.protos.TestProto",
                              ProtoDescriptor::Type::kMessage, std::nullopt);
   descriptor.AddField(FieldDescriptor("int_value", 1,
                                       FieldDescriptorProto::TYPE_INT64, "",
                                       std::vector<uint8_t>(), false, false));

   ProtoBuilder builder(&pool, &descriptor);
   ASSERT_OK(builder.AppendSqlValue("int_value", SqlValue::Long(12345)));

   auto result_ser = builder.SerializeToProtoBuilderResult();
   auto proto = DecodeSingleFieldProto<false>(result_ser);
   const protozero::Field& int_field = proto.Get(1);
   ASSERT_EQ(int_field.as_int64(), 12345);
 }

 TEST_F(ProtoBuilderTest, AppendDouble) {
   using FieldDescriptorProto = protos::pbzero::FieldDescriptorProto;

   // Create the descriptor version of the following message:
   // message TestProto {
   //   optional double double_value = 1;
   // }
   DescriptorPool pool;
   ProtoDescriptor descriptor("file.proto", ".perfetto.protos",
                              ".perfetto.protos.TestProto",
                              ProtoDescriptor::Type::kMessage, std::nullopt);
   descriptor.AddField(FieldDescriptor("double_value", 1,
                                       FieldDescriptorProto::TYPE_DOUBLE, "",
                                       std::vector<uint8_t>(), false, false));

   ProtoBuilder builder(&pool, &descriptor);
   ASSERT_OK(builder.AppendSqlValue("double_value", SqlValue::Double(1.2345)));

   auto result_ser = builder.SerializeToProtoBuilderResult();
   auto proto = DecodeSingleFieldProto<false>(result_ser);
   const protozero::Field& db_field = proto.Get(1);
   ASSERT_DOUBLE_EQ(db_field.as_double(), 1.2345);
 }

 TEST_F(ProtoBuilderTest, AppendString) {
   using FieldDescriptorProto = protos::pbzero::FieldDescriptorProto;

   // Create the descriptor version of the following message:
   // message TestProto {
   //   optional string string_value = 1;
   // }
   DescriptorPool pool;
   ProtoDescriptor descriptor("file.proto", ".perfetto.protos",
                              ".perfetto.protos.TestProto",
                              ProtoDescriptor::Type::kMessage, std::nullopt);
   descriptor.AddField(FieldDescriptor("string_value", 1,
                                       FieldDescriptorProto::TYPE_STRING, "",
                                       std::vector<uint8_t>(), false, false));

   ProtoBuilder builder(&pool, &descriptor);
   ASSERT_OK(
       builder.AppendSqlValue("string_value", SqlValue::String("hello world!")));

   auto result_ser = builder.SerializeToProtoBuilderResult();
   auto proto = DecodeSingleFieldProto<false>(result_ser);
   const protozero::Field& str_field = proto.Get(1);
   ASSERT_EQ(str_field.as_std_string(), "hello world!");
 }

 TEST_F(ProtoBuilderTest, AppendNested) {
   using FieldDescriptorProto = protos::pbzero::FieldDescriptorProto;

   // Create the descriptor version of the following message:
   // message TestProto {
   //   message NestedProto {
   //     optional int64 nested_int_value = 1;
   //   }
   //   optional NestedProto nested_value = 1;
   // }
   DescriptorPool pool;
   ProtoDescriptor nested("file.proto", ".perfetto.protos",
                          ".perfetto.protos.TestProto.NestedProto",
                          ProtoDescriptor::Type::kMessage, std::nullopt);
   nested.AddField(FieldDescriptor("nested_int_value", 1,
                                   FieldDescriptorProto::TYPE_INT64, "",
                                   std::vector<uint8_t>(), false, false));

   ProtoDescriptor descriptor("file.proto", ".perfetto.protos",
                              ".perfetto.protos.TestProto",
                              ProtoDescriptor::Type::kMessage, std::nullopt);
   auto field =
       FieldDescriptor("nested_value", 1, FieldDescriptorProto::TYPE_MESSAGE,
                       ".perfetto.protos.TestProto.NestedProto",
                       std::vector<uint8_t>(), false, false);
   field.set_resolved_type_name(".perfetto.protos.TestProto.NestedProto");
   descriptor.AddField(field);

   ProtoBuilder nest_builder(&pool, &nested);
   ASSERT_OK(
       nest_builder.AppendSqlValue("nested_int_value", SqlValue::Long(789)));

   auto nest_ser = nest_builder.SerializeToProtoBuilderResult();

   ProtoBuilder builder(&pool, &descriptor);
   ASSERT_OK(builder.AppendSqlValue(
       "nested_value", SqlValue::Bytes(nest_ser.data(), nest_ser.size())));

   auto result_ser = builder.SerializeToProtoBuilderResult();
   auto proto = DecodeSingleFieldProto<false>(result_ser);
   const protozero::Field& nest_field = proto.Get(1);
   ASSERT_EQ(nest_field.type(),
             protozero::proto_utils::ProtoWireType::kLengthDelimited);

   protozero::ConstBytes nest_bytes = nest_field.as_bytes();
   protozero::TypedProtoDecoder<1, false> nest(nest_bytes.data, nest_bytes.size);

   const protozero::Field& nest_int_field = nest.Get(1);
   ASSERT_EQ(nest_int_field.type(),
             protozero::proto_utils::ProtoWireType::kVarInt);
   ASSERT_EQ(nest_int_field.as_int64(), 789);
 }

 TEST_F(ProtoBuilderTest, AppendRepeatedEmpty) {
   using FieldDescriptorProto = protos::pbzero::FieldDescriptorProto;

   // Create the descriptor version of the following message:
   // message TestProto {
   //   repeated int64 int_value = 1;
   // }
   DescriptorPool pool;
   ProtoDescriptor descriptor("file.proto", ".perfetto.protos",
                              ".perfetto.protos.TestProto",
                              ProtoDescriptor::Type::kMessage, std::nullopt);
   descriptor.AddField(FieldDescriptor("rep_int_value", 1,
                                       FieldDescriptorProto::TYPE_INT64, "",
                                       std::vector<uint8_t>(), true, false));

   ASSERT_THAT(RepeatedFieldBuilder().SerializeToProtoBuilderResult(),
               IsEmpty());

   ProtoBuilder builder(&pool, &descriptor);
   ASSERT_OK(builder.AppendSqlValue("rep_int_value", SqlValue()));

   auto proto =
       DecodeSingleFieldProto<true>(builder.SerializeToProtoBuilderResult());
   auto it = proto.GetRepeated<int64_t>(1);
   ASSERT_FALSE(it);
 }

 TEST_F(ProtoBuilderTest, AppendRepeatedPrimitive) {
   using FieldDescriptorProto = protos::pbzero::FieldDescriptorProto;

   // Create the descriptor version of the following message:
   // message TestProto {
   //   repeated int64 int_value = 1;
   // }
   DescriptorPool pool;
   ProtoDescriptor descriptor("file.proto", ".perfetto.protos",
                              ".perfetto.protos.TestProto",
                              ProtoDescriptor::Type::kMessage, std::nullopt);
   descriptor.AddField(FieldDescriptor("rep_int_value", 1,
                                       FieldDescriptorProto::TYPE_INT64, "",
                                       std::vector<uint8_t>(), true, false));

   RepeatedFieldBuilder rep_builder;
   rep_builder.AddSqlValue(SqlValue::Long(1234));
   rep_builder.AddSqlValue(SqlValue::Long(5678));

   std::vector<uint8_t> rep_ser = rep_builder.SerializeToProtoBuilderResult();

   ProtoBuilder builder(&pool, &descriptor);
   ASSERT_OK(builder.AppendSqlValue(
       "rep_int_value", SqlValue::Bytes(rep_ser.data(), rep_ser.size())));

   auto proto =
       DecodeSingleFieldProto<true>(builder.SerializeToProtoBuilderResult());
   auto it = proto.GetRepeated<int64_t>(1);
   ASSERT_EQ(*it, 1234);
   ASSERT_EQ(*++it, 5678);
   ASSERT_FALSE(++it);
 }

 TEST_F(ProtoBuilderTest, AppendEnums) {
   using FieldDescriptorProto = protos::pbzero::FieldDescriptorProto;

   // Create the descriptor version of the following enum and message:
   // enum TestEnum {
   //   FIRST = 1,
   //   SECOND = 2,
   //   THIRD = 3
   // }
   // message TestMessage {
   //   optional TestEnum enum_value = 1;
   // }
   DescriptorPool pool;
   ProtoDescriptor enum_descriptor("file.proto", ".perfetto.protos",
                                   ".perfetto.protos.TestEnum",
                                   ProtoDescriptor::Type::kEnum, std::nullopt);
   enum_descriptor.AddEnumValue(1, "FIRST");
   enum_descriptor.AddEnumValue(2, "SECOND");
   enum_descriptor.AddEnumValue(3, "THIRD");
   pool.AddProtoDescriptorForTesting(enum_descriptor);

   ProtoDescriptor descriptor("file.proto", ".perfetto.protos",
                              ".perfetto.protos.TestMessage",
                              ProtoDescriptor::Type::kMessage, std::nullopt);
   FieldDescriptor enum_field("enum_value", 1, FieldDescriptorProto::TYPE_ENUM,
                              ".perfetto.protos.TestEnum",
                              std::vector<uint8_t>(), false, false);
   enum_field.set_resolved_type_name(".perfetto.protos.TestEnum");
   descriptor.AddField(enum_field);
   pool.AddProtoDescriptorForTesting(descriptor);

   ProtoBuilder value_builder(&pool, &descriptor);
   ASSERT_THAT(value_builder.AppendSqlValue("enum_value", SqlValue::Long(4)),
               IsError());
   ASSERT_OK(value_builder.AppendSqlValue("enum_value", SqlValue::Long(3)));
   ASSERT_THAT(value_builder.AppendSqlValue("enum_value", SqlValue::Long(6)),
               IsError());

   auto value_proto = DecodeSingleFieldProto<false>(
       value_builder.SerializeToProtoBuilderResult());
   ASSERT_EQ(value_proto.Get(1).as_int32(), 3);

   ProtoBuilder str_builder(&pool, &descriptor);
   ASSERT_THAT(
       str_builder.AppendSqlValue("enum_value", SqlValue::String("FOURTH")),
       IsError());
   ASSERT_OK(
       str_builder.AppendSqlValue("enum_value", SqlValue::String("SECOND")));
   ASSERT_THAT(
       str_builder.AppendSqlValue("enum_value", SqlValue::String("OTHER")),
       IsError());

   auto str_proto = DecodeSingleFieldProto<false>(
       str_builder.SerializeToProtoBuilderResult());
   ASSERT_EQ(str_proto.Get(1).as_int32(), 2);
 }

 }  // namespace
 }  // namespace perfetto::trace_processor::metrics
	/*
	* Copyright (C) 2019 The Android Open Source Project
	*
	* 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.
	*/

	#include "src/trace_processor/metrics/metrics.h"

	#include <cstdint>
	#include <optional>
	#include <string>
	#include <unordered_map>
	#include <vector>

	#include "perfetto/protozero/field.h"
	#include "perfetto/protozero/proto_decoder.h"
	#include "perfetto/protozero/proto_utils.h"
	#include "perfetto/trace_processor/basic_types.h"
	#include "protos/perfetto/common/descriptor.pbzero.h"
	#include "src/base/test/status_matchers.h"
	#include "src/trace_processor/util/descriptors.h"
	#include "test/gtest_and_gmock.h"

	#include "protos/perfetto/trace_processor/metrics_impl.pbzero.h"

	namespace perfetto::trace_processor::metrics {
	namespace {
	using base::gtest_matchers::IsError;

	using base::gtest_matchers::IsError;
	using testing::IsEmpty;

	std::string RunTemplateReplace(
	const std::string& str,
	const std::unordered_map<std::string, std::string>& subs) {
	std::string out;
	EXPECT_EQ(TemplateReplace(str, subs, &out), 0);
	return out;
	}

	TEST(MetricsTest, TemplateReplace) {
	auto res = RunTemplateReplace("no templates here", {});
	ASSERT_EQ(res, "no templates here");

	res = RunTemplateReplace("{{justtemplate}}", {{"justtemplate", "result"}});
	ASSERT_EQ(res, "result");

	res = RunTemplateReplace("{{temp1}} {{temp2}}!",
	{{"temp1", "hello"}, {"temp2", "world"}});
	ASSERT_EQ(res, "hello world!");

	std::string unused;
	ASSERT_NE(TemplateReplace("{{missing}}", {{}}, &unused), 0);
	}

	class ProtoBuilderTest : public ::testing::Test {
	protected:
	template <bool repeated>
	protozero::TypedProtoDecoder<1, repeated> DecodeSingleFieldProto(
	const std::vector<uint8_t>& result_ser) {
	protos::pbzero::ProtoBuilderResult::Decoder result(result_ser.data(),
	result_ser.size());
	protos::pbzero::SingleBuilderResult::Decoder single(result.single());
	protozero::ConstBytes proto_ser = single.protobuf();
	return protozero::TypedProtoDecoder<1, repeated>(proto_ser.data,
	proto_ser.size);
	}
	};

	TEST_F(ProtoBuilderTest, AppendLong) {
	using FieldDescriptorProto = protos::pbzero::FieldDescriptorProto;

	// Create the descriptor version of the following message:
	// message TestProto {
	// optional int64 int_value = 1;
	// }
	DescriptorPool pool;
	ProtoDescriptor descriptor("file.proto", ".perfetto.protos",
	".perfetto.protos.TestProto",
	ProtoDescriptor::Type::kMessage, std::nullopt);
	descriptor.AddField(FieldDescriptor("int_value", 1,
	FieldDescriptorProto::TYPE_INT64, "",
	std::vector<uint8_t>(), false, false));

	ProtoBuilder builder(&pool, &descriptor);
	ASSERT_OK(builder.AppendSqlValue("int_value", SqlValue::Long(12345)));

	auto result_ser = builder.SerializeToProtoBuilderResult();
	auto proto = DecodeSingleFieldProto<false>(result_ser);
	const protozero::Field& int_field = proto.Get(1);
	ASSERT_EQ(int_field.as_int64(), 12345);
	}

	TEST_F(ProtoBuilderTest, AppendDouble) {
	using FieldDescriptorProto = protos::pbzero::FieldDescriptorProto;

	// Create the descriptor version of the following message:
	// message TestProto {
	// optional double double_value = 1;
	// }
	DescriptorPool pool;
	ProtoDescriptor descriptor("file.proto", ".perfetto.protos",
	".perfetto.protos.TestProto",
	ProtoDescriptor::Type::kMessage, std::nullopt);
	descriptor.AddField(FieldDescriptor("double_value", 1,
	FieldDescriptorProto::TYPE_DOUBLE, "",
	std::vector<uint8_t>(), false, false));

	ProtoBuilder builder(&pool, &descriptor);
	ASSERT_OK(builder.AppendSqlValue("double_value", SqlValue::Double(1.2345)));

	auto result_ser = builder.SerializeToProtoBuilderResult();
	auto proto = DecodeSingleFieldProto<false>(result_ser);
	const protozero::Field& db_field = proto.Get(1);
	ASSERT_DOUBLE_EQ(db_field.as_double(), 1.2345);
	}

	TEST_F(ProtoBuilderTest, AppendString) {
	using FieldDescriptorProto = protos::pbzero::FieldDescriptorProto;

	// Create the descriptor version of the following message:
	// message TestProto {
	// optional string string_value = 1;
	// }
	DescriptorPool pool;
	ProtoDescriptor descriptor("file.proto", ".perfetto.protos",
	".perfetto.protos.TestProto",
	ProtoDescriptor::Type::kMessage, std::nullopt);
	descriptor.AddField(FieldDescriptor("string_value", 1,
	FieldDescriptorProto::TYPE_STRING, "",
	std::vector<uint8_t>(), false, false));

	ProtoBuilder builder(&pool, &descriptor);
	ASSERT_OK(
	builder.AppendSqlValue("string_value", SqlValue::String("hello world!")));

	auto result_ser = builder.SerializeToProtoBuilderResult();
	auto proto = DecodeSingleFieldProto<false>(result_ser);
	const protozero::Field& str_field = proto.Get(1);
	ASSERT_EQ(str_field.as_std_string(), "hello world!");
	}

	TEST_F(ProtoBuilderTest, AppendNested) {
	using FieldDescriptorProto = protos::pbzero::FieldDescriptorProto;

	// Create the descriptor version of the following message:
	// message TestProto {
	// message NestedProto {
	// optional int64 nested_int_value = 1;
	// }
	// optional NestedProto nested_value = 1;
	// }
	DescriptorPool pool;
	ProtoDescriptor nested("file.proto", ".perfetto.protos",
	".perfetto.protos.TestProto.NestedProto",
	ProtoDescriptor::Type::kMessage, std::nullopt);
	nested.AddField(FieldDescriptor("nested_int_value", 1,
	FieldDescriptorProto::TYPE_INT64, "",
	std::vector<uint8_t>(), false, false));

	ProtoDescriptor descriptor("file.proto", ".perfetto.protos",
	".perfetto.protos.TestProto",
	ProtoDescriptor::Type::kMessage, std::nullopt);
	auto field =
	FieldDescriptor("nested_value", 1, FieldDescriptorProto::TYPE_MESSAGE,
	".perfetto.protos.TestProto.NestedProto",
	std::vector<uint8_t>(), false, false);
	field.set_resolved_type_name(".perfetto.protos.TestProto.NestedProto");
	descriptor.AddField(field);

	ProtoBuilder nest_builder(&pool, &nested);
	ASSERT_OK(
	nest_builder.AppendSqlValue("nested_int_value", SqlValue::Long(789)));

	auto nest_ser = nest_builder.SerializeToProtoBuilderResult();

	ProtoBuilder builder(&pool, &descriptor);
	ASSERT_OK(builder.AppendSqlValue(
	"nested_value", SqlValue::Bytes(nest_ser.data(), nest_ser.size())));

	auto result_ser = builder.SerializeToProtoBuilderResult();
	auto proto = DecodeSingleFieldProto<false>(result_ser);
	const protozero::Field& nest_field = proto.Get(1);
	ASSERT_EQ(nest_field.type(),
	protozero::proto_utils::ProtoWireType::kLengthDelimited);

	protozero::ConstBytes nest_bytes = nest_field.as_bytes();
	protozero::TypedProtoDecoder<1, false> nest(nest_bytes.data, nest_bytes.size);

	const protozero::Field& nest_int_field = nest.Get(1);
	ASSERT_EQ(nest_int_field.type(),
	protozero::proto_utils::ProtoWireType::kVarInt);
	ASSERT_EQ(nest_int_field.as_int64(), 789);
	}

	TEST_F(ProtoBuilderTest, AppendRepeatedEmpty) {
	using FieldDescriptorProto = protos::pbzero::FieldDescriptorProto;

	// Create the descriptor version of the following message:
	// message TestProto {
	// repeated int64 int_value = 1;
	// }
	DescriptorPool pool;
	ProtoDescriptor descriptor("file.proto", ".perfetto.protos",
	".perfetto.protos.TestProto",
	ProtoDescriptor::Type::kMessage, std::nullopt);
	descriptor.AddField(FieldDescriptor("rep_int_value", 1,
	FieldDescriptorProto::TYPE_INT64, "",
	std::vector<uint8_t>(), true, false));

	ASSERT_THAT(RepeatedFieldBuilder().SerializeToProtoBuilderResult(),
	IsEmpty());

	ProtoBuilder builder(&pool, &descriptor);
	ASSERT_OK(builder.AppendSqlValue("rep_int_value", SqlValue()));

	auto proto =
	DecodeSingleFieldProto<true>(builder.SerializeToProtoBuilderResult());
	auto it = proto.GetRepeated<int64_t>(1);
	ASSERT_FALSE(it);
	}

	TEST_F(ProtoBuilderTest, AppendRepeatedPrimitive) {
	using FieldDescriptorProto = protos::pbzero::FieldDescriptorProto;

	// Create the descriptor version of the following message:
	// message TestProto {
	// repeated int64 int_value = 1;
	// }
	DescriptorPool pool;
	ProtoDescriptor descriptor("file.proto", ".perfetto.protos",
	".perfetto.protos.TestProto",
	ProtoDescriptor::Type::kMessage, std::nullopt);
	descriptor.AddField(FieldDescriptor("rep_int_value", 1,
	FieldDescriptorProto::TYPE_INT64, "",
	std::vector<uint8_t>(), true, false));

	RepeatedFieldBuilder rep_builder;
	rep_builder.AddSqlValue(SqlValue::Long(1234));
	rep_builder.AddSqlValue(SqlValue::Long(5678));

	std::vector<uint8_t> rep_ser = rep_builder.SerializeToProtoBuilderResult();

	ProtoBuilder builder(&pool, &descriptor);
	ASSERT_OK(builder.AppendSqlValue(
	"rep_int_value", SqlValue::Bytes(rep_ser.data(), rep_ser.size())));

	auto proto =
	DecodeSingleFieldProto<true>(builder.SerializeToProtoBuilderResult());
	auto it = proto.GetRepeated<int64_t>(1);
	ASSERT_EQ(*it, 1234);
	ASSERT_EQ(*++it, 5678);
	ASSERT_FALSE(++it);
	}

	TEST_F(ProtoBuilderTest, AppendEnums) {
	using FieldDescriptorProto = protos::pbzero::FieldDescriptorProto;

	// Create the descriptor version of the following enum and message:
	// enum TestEnum {
	// FIRST = 1,
	// SECOND = 2,
	// THIRD = 3
	// }
	// message TestMessage {
	// optional TestEnum enum_value = 1;
	// }
	DescriptorPool pool;
	ProtoDescriptor enum_descriptor("file.proto", ".perfetto.protos",
	".perfetto.protos.TestEnum",
	ProtoDescriptor::Type::kEnum, std::nullopt);
	enum_descriptor.AddEnumValue(1, "FIRST");
	enum_descriptor.AddEnumValue(2, "SECOND");
	enum_descriptor.AddEnumValue(3, "THIRD");
	pool.AddProtoDescriptorForTesting(enum_descriptor);

	ProtoDescriptor descriptor("file.proto", ".perfetto.protos",
	".perfetto.protos.TestMessage",
	ProtoDescriptor::Type::kMessage, std::nullopt);
	FieldDescriptor enum_field("enum_value", 1, FieldDescriptorProto::TYPE_ENUM,
	".perfetto.protos.TestEnum",
	std::vector<uint8_t>(), false, false);
	enum_field.set_resolved_type_name(".perfetto.protos.TestEnum");
	descriptor.AddField(enum_field);
	pool.AddProtoDescriptorForTesting(descriptor);

	ProtoBuilder value_builder(&pool, &descriptor);
	ASSERT_THAT(value_builder.AppendSqlValue("enum_value", SqlValue::Long(4)),
	IsError());
	ASSERT_OK(value_builder.AppendSqlValue("enum_value", SqlValue::Long(3)));
	ASSERT_THAT(value_builder.AppendSqlValue("enum_value", SqlValue::Long(6)),
	IsError());

	auto value_proto = DecodeSingleFieldProto<false>(
	value_builder.SerializeToProtoBuilderResult());
	ASSERT_EQ(value_proto.Get(1).as_int32(), 3);

	ProtoBuilder str_builder(&pool, &descriptor);
	ASSERT_THAT(
	str_builder.AppendSqlValue("enum_value", SqlValue::String("FOURTH")),
	IsError());
	ASSERT_OK(
	str_builder.AppendSqlValue("enum_value", SqlValue::String("SECOND")));
	ASSERT_THAT(
	str_builder.AppendSqlValue("enum_value", SqlValue::String("OTHER")),
	IsError());

	auto str_proto = DecodeSingleFieldProto<false>(
	str_builder.SerializeToProtoBuilderResult());
	ASSERT_EQ(str_proto.Get(1).as_int32(), 2);
	}

	} // namespace
	} // namespace perfetto::trace_processor::metrics