chromium/third_party/perfetto/src/protozero/proto_utils_unittest.cc

/*
 * Copyright (C) 2017 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 "perfetto/protozero/proto_utils.h"

#include <limits>

#include "perfetto/base/logging.h"
#include "perfetto/ext/base/utils.h"
#include "test/gtest_and_gmock.h"

namespace protozero {
namespace proto_utils {
namespace {

ArraySize;

struct VarIntExpectation { … };

const VarIntExpectation kVarIntExpectations[] = …;

TEST(ProtoUtilsTest, FieldPreambleEncoding) { … }

TEST(ProtoUtilsTest, ZigZagEncoding) { … }

TEST(ProtoUtilsTest, VarIntEncoding) { … }

TEST(ProtoUtilsTest, VarIntEncodingNegative) { … }

TEST(ProtoUtilsTest, RedundantVarIntEncoding) { … }

TEST(ProtoUtilsTest, VarIntDecoding) { … }

// ParseVarInt() must fail gracefully if we hit the |end| without seeing the
// MSB == 0 (i.e. end-of-sequence).
TEST(ProtoUtilsTest, VarIntDecodingOutOfBounds) { … }

// Even if we see a valid end-of-sequence, ParseVarInt() must fail if the number
// is larger than 10 bytes. That would cause subtl bugs when trying to shift
// left by more than 64 bits.
TEST(ProtoUtilsTest, RejectVarIntTooBig) { … }

}  // namespace
}  // namespace proto_utils
}  // namespace protozero