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base / std_clamp_unittest.cc [blame]
// 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.
#include <algorithm>
#include <tuple>
#include "testing/gtest/include/gtest/gtest.h"
namespace {
struct OneType {
int some_int;
};
bool operator<(const OneType& lhs, const OneType& rhs) {
return lhs.some_int < rhs.some_int;
}
struct AnotherType {
int some_other_int;
};
// Verify libc++ hardening terminates instead of UB with invalid clamp args.
TEST(ClampTest, Death) {
EXPECT_DEATH_IF_SUPPORTED(std::ignore = std::clamp(3, 10, 0), "");
EXPECT_DEATH_IF_SUPPORTED(std::ignore = std::clamp(3.0, 10.0, 0.0), "");
OneType one_type_0{0};
OneType one_type_3{3};
OneType one_type_10{10};
AnotherType another_type_0{0};
AnotherType another_type_3{3};
AnotherType another_type_10{10};
auto compare_another_type = [](const auto& lhs, const auto& rhs) {
return lhs.some_other_int < rhs.some_other_int;
};
EXPECT_DEATH_IF_SUPPORTED(
std::ignore = std::clamp(one_type_3, one_type_10, one_type_0), "");
EXPECT_DEATH_IF_SUPPORTED(
std::ignore = std::clamp(another_type_3, another_type_10, another_type_0,
compare_another_type),
"");
}
} // namespace