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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/containers/contains.h"
#include <functional>
#include <set>
#include <string>
#include <string_view>
#include "base/containers/flat_set.h"
#include "base/strings/string_util.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace base {
TEST(ContainsTest, GenericContains) {
constexpr char allowed_chars[] = {'a', 'b', 'c', 'd'};
static_assert(Contains(allowed_chars, 'a'), "");
static_assert(!Contains(allowed_chars, 'z'), "");
static_assert(!Contains(allowed_chars, 0), "");
constexpr char allowed_chars_including_nul[] = "abcd";
static_assert(Contains(allowed_chars_including_nul, 0), "");
}
TEST(ContainsTest, GenericContainsWithProjection) {
const char allowed_chars[] = {'A', 'B', 'C', 'D'};
EXPECT_TRUE(Contains(allowed_chars, 'a', &ToLowerASCII<char>));
EXPECT_FALSE(Contains(allowed_chars, 'z', &ToLowerASCII<char>));
EXPECT_FALSE(Contains(allowed_chars, 0, &ToLowerASCII<char>));
}
TEST(ContainsTest, GenericSetContainsWithProjection) {
constexpr std::string_view kFoo = "foo";
std::set<std::string> set = {"foo", "bar", "baz"};
// Opt into a linear search by explicitly providing a projection:
EXPECT_TRUE(Contains(set, kFoo, std::identity{}));
}
TEST(ContainsTest, ContainsWithFindAndNpos) {
std::string str = "abcd";
EXPECT_TRUE(Contains(str, 'a'));
EXPECT_FALSE(Contains(str, 'z'));
EXPECT_FALSE(Contains(str, 0));
}
TEST(ContainsTest, ContainsWithFindAndEnd) {
std::set<int> set = {1, 2, 3, 4};
EXPECT_TRUE(Contains(set, 1));
EXPECT_FALSE(Contains(set, 5));
EXPECT_FALSE(Contains(set, 0));
}
TEST(ContainsTest, ContainsWithContains) {
flat_set<int> set = {1, 2, 3, 4};
EXPECT_TRUE(Contains(set, 1));
EXPECT_FALSE(Contains(set, 5));
EXPECT_FALSE(Contains(set, 0));
}
} // namespace base
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