109 lines
3.1 KiB
C++
109 lines
3.1 KiB
C++
// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
|
|
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
|
|
#include <string>
|
|
|
|
#include <catch2/catch_test_macros.hpp>
|
|
|
|
#include "common/unique_function.h"
|
|
|
|
namespace {
|
|
struct Noisy {
|
|
Noisy() : state{"Default constructed"} {}
|
|
Noisy(Noisy&& rhs) noexcept : state{"Move constructed"} {
|
|
rhs.state = "Moved away";
|
|
}
|
|
Noisy& operator=(Noisy&& rhs) noexcept {
|
|
state = "Move assigned";
|
|
rhs.state = "Moved away";
|
|
return *this;
|
|
}
|
|
Noisy(const Noisy&) : state{"Copied constructed"} {}
|
|
Noisy& operator=(const Noisy&) {
|
|
state = "Copied assigned";
|
|
return *this;
|
|
}
|
|
|
|
std::string state;
|
|
};
|
|
} // Anonymous namespace
|
|
|
|
TEST_CASE("UniqueFunction", "[common]") {
|
|
SECTION("Capture reference") {
|
|
int value = 0;
|
|
Common::UniqueFunction<void> func = [&value] { value = 5; };
|
|
func();
|
|
REQUIRE(value == 5);
|
|
}
|
|
SECTION("Capture pointer") {
|
|
int value = 0;
|
|
int* pointer = &value;
|
|
Common::UniqueFunction<void> func = [pointer] { *pointer = 5; };
|
|
func();
|
|
REQUIRE(value == 5);
|
|
}
|
|
SECTION("Move object") {
|
|
Noisy noisy;
|
|
REQUIRE(noisy.state == "Default constructed");
|
|
|
|
Common::UniqueFunction<void> func = [noisy_inner = std::move(noisy)] {
|
|
REQUIRE(noisy_inner.state == "Move constructed");
|
|
};
|
|
REQUIRE(noisy.state == "Moved away");
|
|
func();
|
|
}
|
|
SECTION("Move construct function") {
|
|
int value = 0;
|
|
Common::UniqueFunction<void> func = [&value] { value = 5; };
|
|
Common::UniqueFunction<void> new_func = std::move(func);
|
|
new_func();
|
|
REQUIRE(value == 5);
|
|
}
|
|
SECTION("Move assign function") {
|
|
int value = 0;
|
|
Common::UniqueFunction<void> func = [&value] { value = 5; };
|
|
Common::UniqueFunction<void> new_func;
|
|
new_func = std::move(func);
|
|
new_func();
|
|
REQUIRE(value == 5);
|
|
}
|
|
SECTION("Default construct then assign function") {
|
|
int value = 0;
|
|
Common::UniqueFunction<void> func;
|
|
func = [&value] { value = 5; };
|
|
func();
|
|
REQUIRE(value == 5);
|
|
}
|
|
SECTION("Pass arguments") {
|
|
int result = 0;
|
|
Common::UniqueFunction<void, int, int> func = [&result](int a, int b) { result = a + b; };
|
|
func(5, 4);
|
|
REQUIRE(result == 9);
|
|
}
|
|
SECTION("Pass arguments and return value") {
|
|
Common::UniqueFunction<int, int, int> func = [](int a, int b) { return a + b; };
|
|
REQUIRE(func(5, 4) == 9);
|
|
}
|
|
SECTION("Destructor") {
|
|
int num_destroyed = 0;
|
|
struct Foo {
|
|
Foo(int* num_) : num{num_} {}
|
|
Foo(Foo&& rhs) : num{std::exchange(rhs.num, nullptr)} {}
|
|
Foo(const Foo&) = delete;
|
|
|
|
~Foo() {
|
|
if (num) {
|
|
++*num;
|
|
}
|
|
}
|
|
|
|
int* num = nullptr;
|
|
};
|
|
Foo object{&num_destroyed};
|
|
{
|
|
Common::UniqueFunction<void> func = [object_inner = std::move(object)] {};
|
|
REQUIRE(num_destroyed == 0);
|
|
}
|
|
REQUIRE(num_destroyed == 1);
|
|
}
|
|
}
|