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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef BASE_CONTAINERS_MAP_UTIL_UNITTEST_CC_
#define BASE_CONTAINERS_MAP_UTIL_UNITTEST_CC_
#include "base/containers/map_util.h"
#include <memory>
#include <string>
#include "base/containers/flat_map.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace base {
namespace {
using testing::AllOf;
using testing::Eq;
using testing::Pointee;
constexpr char kKey[] = "key";
constexpr char kValue[] = "value";
constexpr char kMissingKey[] = "missing_key";
using StringToStringMap = base::flat_map<std::string, std::string>;
using StringToStringPtrMap = base::flat_map<std::string, std::string*>;
using StringToStringUniquePtrMap =
base::flat_map<std::string, std::unique_ptr<std::string>>;
TEST(MapUtilTest, FindOrNull) {
StringToStringMap mapping({{kKey, kValue}});
EXPECT_THAT(FindOrNull(mapping, kKey), Pointee(Eq(kValue)));
EXPECT_EQ(FindOrNull(mapping, kMissingKey), nullptr);
}
TEST(MapUtilTest, FindPtrOrNullForPointers) {
auto val = std::make_unique<std::string>(kValue);
StringToStringPtrMap mapping({{kKey, val.get()}});
EXPECT_THAT(FindPtrOrNull(mapping, kKey),
AllOf(Eq(val.get()), Pointee(Eq(kValue))));
EXPECT_EQ(FindPtrOrNull(mapping, kMissingKey), nullptr);
}
TEST(MapUtilTest, FindPtrOrNullForPointerLikeValues) {
StringToStringUniquePtrMap mapping;
mapping.insert({kKey, std::make_unique<std::string>(kValue)});
EXPECT_THAT(FindPtrOrNull(mapping, kKey), Pointee(Eq(kValue)));
EXPECT_EQ(FindPtrOrNull(mapping, kMissingKey), nullptr);
}
} // namespace
} // namespace base
#endif // BASE_CONTAINERS_MAP_UTIL_UNITTEST_CC_
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