tomato-testing/test/entt/signal/sigh.cpp

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#include <memory>
#include <utility>
#include <gtest/gtest.h>
#include <entt/signal/sigh.hpp>
struct sigh_listener {
static void f(int &v) {
v = 42;
}
bool g(int) {
k = !k;
return true;
}
bool h(const int &) {
return k;
}
// useless definition just because msvc does weird things if both are empty
void l() {
k = true && k;
}
bool k{false};
};
struct before_after {
void add(int v) {
value += v;
}
void mul(int v) {
value *= v;
}
static void static_add(int v) {
before_after::value += v;
}
static void static_mul(before_after &instance, int v) {
instance.value *= v;
}
static inline int value{};
};
struct SigH: ::testing::Test {
void SetUp() override {
before_after::value = 0;
}
};
struct const_nonconst_noexcept {
void f() {
++cnt;
}
void g() noexcept {
++cnt;
}
void h() const {
++cnt;
}
void i() const noexcept {
++cnt;
}
mutable int cnt{0};
};
TEST_F(SigH, Lifetime) {
using signal = entt::sigh<void(void)>;
ASSERT_NO_FATAL_FAILURE(signal{});
signal src{}, other{};
ASSERT_NO_FATAL_FAILURE(signal{src});
ASSERT_NO_FATAL_FAILURE(signal{std::move(other)});
ASSERT_NO_FATAL_FAILURE(src = other);
ASSERT_NO_FATAL_FAILURE(src = std::move(other));
ASSERT_NO_FATAL_FAILURE(delete new signal{});
}
TEST_F(SigH, Clear) {
entt::sigh<void(int &)> sigh;
entt::sink sink{sigh};
sink.connect<&sigh_listener::f>();
ASSERT_FALSE(sink.empty());
ASSERT_FALSE(sigh.empty());
sink.disconnect(static_cast<const void *>(nullptr));
ASSERT_FALSE(sink.empty());
ASSERT_FALSE(sigh.empty());
sink.disconnect();
ASSERT_TRUE(sink.empty());
ASSERT_TRUE(sigh.empty());
}
TEST_F(SigH, Swap) {
entt::sigh<void(int &)> sigh1;
entt::sigh<void(int &)> sigh2;
entt::sink sink1{sigh1};
entt::sink sink2{sigh2};
sink1.connect<&sigh_listener::f>();
ASSERT_FALSE(sink1.empty());
ASSERT_TRUE(sink2.empty());
ASSERT_FALSE(sigh1.empty());
ASSERT_TRUE(sigh2.empty());
sigh1.swap(sigh2);
ASSERT_TRUE(sink1.empty());
ASSERT_FALSE(sink2.empty());
ASSERT_TRUE(sigh1.empty());
ASSERT_FALSE(sigh2.empty());
}
TEST_F(SigH, Functions) {
entt::sigh<void(int &)> sigh;
entt::sink sink{sigh};
int v = 0;
sink.connect<&sigh_listener::f>();
sigh.publish(v);
ASSERT_FALSE(sigh.empty());
ASSERT_EQ(1u, sigh.size());
ASSERT_EQ(42, v);
v = 0;
sink.disconnect<&sigh_listener::f>();
sigh.publish(v);
ASSERT_TRUE(sigh.empty());
ASSERT_EQ(0u, sigh.size());
ASSERT_EQ(v, 0);
}
TEST_F(SigH, FunctionsWithPayload) {
entt::sigh<void()> sigh;
entt::sink sink{sigh};
int v = 0;
sink.connect<&sigh_listener::f>(v);
sigh.publish();
ASSERT_FALSE(sigh.empty());
ASSERT_EQ(1u, sigh.size());
ASSERT_EQ(42, v);
v = 0;
sink.disconnect<&sigh_listener::f>(v);
sigh.publish();
ASSERT_TRUE(sigh.empty());
ASSERT_EQ(0u, sigh.size());
ASSERT_EQ(v, 0);
sink.connect<&sigh_listener::f>(v);
sink.disconnect(v);
sigh.publish();
ASSERT_EQ(v, 0);
}
TEST_F(SigH, Members) {
sigh_listener l1, l2;
entt::sigh<bool(int)> sigh;
entt::sink sink{sigh};
sink.connect<&sigh_listener::g>(l1);
sigh.publish(42);
ASSERT_TRUE(l1.k);
ASSERT_FALSE(sigh.empty());
ASSERT_EQ(1u, sigh.size());
sink.disconnect<&sigh_listener::g>(l1);
sigh.publish(42);
ASSERT_TRUE(l1.k);
ASSERT_TRUE(sigh.empty());
ASSERT_EQ(0u, sigh.size());
sink.connect<&sigh_listener::g>(&l1);
sink.connect<&sigh_listener::h>(l2);
ASSERT_FALSE(sigh.empty());
ASSERT_EQ(2u, sigh.size());
sink.disconnect(static_cast<const void *>(nullptr));
ASSERT_FALSE(sigh.empty());
ASSERT_EQ(2u, sigh.size());
sink.disconnect(&l1);
ASSERT_FALSE(sigh.empty());
ASSERT_EQ(1u, sigh.size());
}
TEST_F(SigH, Collector) {
sigh_listener listener;
entt::sigh<bool(int)> sigh;
entt::sink sink{sigh};
int cnt = 0;
sink.connect<&sigh_listener::g>(&listener);
sink.connect<&sigh_listener::h>(listener);
auto no_return = [&listener, &cnt](bool value) {
ASSERT_TRUE(value);
listener.k = true;
++cnt;
};
listener.k = true;
sigh.collect(std::move(no_return), 42);
ASSERT_FALSE(sigh.empty());
ASSERT_EQ(cnt, 2);
auto bool_return = [&cnt](bool value) {
// gtest and its macro hell are sometimes really annoying...
[](auto v) { ASSERT_TRUE(v); }(value);
++cnt;
return true;
};
cnt = 0;
sigh.collect(std::move(bool_return), 42);
ASSERT_EQ(cnt, 1);
}
TEST_F(SigH, CollectorVoid) {
sigh_listener listener;
entt::sigh<void(int)> sigh;
entt::sink sink{sigh};
int cnt = 0;
sink.connect<&sigh_listener::g>(&listener);
sink.connect<&sigh_listener::h>(listener);
sigh.collect([&cnt]() { ++cnt; }, 42);
ASSERT_FALSE(sigh.empty());
ASSERT_EQ(cnt, 2);
auto test = [&cnt]() {
++cnt;
return true;
};
cnt = 0;
sigh.collect(std::move(test), 42);
ASSERT_EQ(cnt, 1);
}
TEST_F(SigH, Connection) {
entt::sigh<void(int &)> sigh;
entt::sink sink{sigh};
int v = 0;
auto conn = sink.connect<&sigh_listener::f>();
sigh.publish(v);
ASSERT_FALSE(sigh.empty());
ASSERT_TRUE(conn);
ASSERT_EQ(42, v);
v = 0;
conn.release();
sigh.publish(v);
ASSERT_TRUE(sigh.empty());
ASSERT_FALSE(conn);
ASSERT_EQ(0, v);
}
TEST_F(SigH, ScopedConnection) {
sigh_listener listener;
entt::sigh<void(int)> sigh;
entt::sink sink{sigh};
{
ASSERT_FALSE(listener.k);
entt::scoped_connection conn = sink.connect<&sigh_listener::g>(listener);
sigh.publish(42);
ASSERT_FALSE(sigh.empty());
ASSERT_TRUE(listener.k);
ASSERT_TRUE(conn);
}
sigh.publish(42);
ASSERT_TRUE(sigh.empty());
ASSERT_TRUE(listener.k);
}
TEST_F(SigH, ScopedConnectionMove) {
sigh_listener listener;
entt::sigh<void(int)> sigh;
entt::sink sink{sigh};
entt::scoped_connection outer{sink.connect<&sigh_listener::g>(listener)};
ASSERT_FALSE(sigh.empty());
ASSERT_TRUE(outer);
{
entt::scoped_connection inner{std::move(outer)};
ASSERT_FALSE(listener.k);
ASSERT_FALSE(outer);
ASSERT_TRUE(inner);
sigh.publish(42);
ASSERT_TRUE(listener.k);
}
ASSERT_TRUE(sigh.empty());
outer = sink.connect<&sigh_listener::g>(listener);
ASSERT_FALSE(sigh.empty());
ASSERT_TRUE(outer);
{
entt::scoped_connection inner{};
ASSERT_TRUE(listener.k);
ASSERT_TRUE(outer);
ASSERT_FALSE(inner);
inner = std::move(outer);
ASSERT_FALSE(outer);
ASSERT_TRUE(inner);
sigh.publish(42);
ASSERT_FALSE(listener.k);
}
ASSERT_TRUE(sigh.empty());
}
TEST_F(SigH, ScopedConnectionConstructorsAndOperators) {
sigh_listener listener;
entt::sigh<void(int)> sigh;
entt::sink sink{sigh};
{
entt::scoped_connection inner{};
ASSERT_TRUE(sigh.empty());
ASSERT_FALSE(listener.k);
ASSERT_FALSE(inner);
inner = sink.connect<&sigh_listener::g>(listener);
sigh.publish(42);
ASSERT_FALSE(sigh.empty());
ASSERT_TRUE(listener.k);
ASSERT_TRUE(inner);
inner.release();
ASSERT_TRUE(sigh.empty());
ASSERT_FALSE(inner);
auto basic = sink.connect<&sigh_listener::g>(listener);
inner = std::as_const(basic);
sigh.publish(42);
ASSERT_FALSE(sigh.empty());
ASSERT_FALSE(listener.k);
ASSERT_TRUE(inner);
}
sigh.publish(42);
ASSERT_TRUE(sigh.empty());
ASSERT_FALSE(listener.k);
}
TEST_F(SigH, ConstNonConstNoExcept) {
entt::sigh<void()> sigh;
entt::sink sink{sigh};
const_nonconst_noexcept functor;
const const_nonconst_noexcept cfunctor;
sink.connect<&const_nonconst_noexcept::f>(functor);
sink.connect<&const_nonconst_noexcept::g>(&functor);
sink.connect<&const_nonconst_noexcept::h>(cfunctor);
sink.connect<&const_nonconst_noexcept::i>(&cfunctor);
sigh.publish();
ASSERT_EQ(functor.cnt, 2);
ASSERT_EQ(cfunctor.cnt, 2);
sink.disconnect<&const_nonconst_noexcept::f>(functor);
sink.disconnect<&const_nonconst_noexcept::g>(&functor);
sink.disconnect<&const_nonconst_noexcept::h>(cfunctor);
sink.disconnect<&const_nonconst_noexcept::i>(&cfunctor);
sigh.publish();
ASSERT_EQ(functor.cnt, 2);
ASSERT_EQ(cfunctor.cnt, 2);
}
TEST_F(SigH, BeforeFunction) {
entt::sigh<void(int)> sigh;
entt::sink sink{sigh};
before_after functor;
sink.connect<&before_after::add>(functor);
sink.connect<&before_after::static_add>();
sink.before<&before_after::static_add>().connect<&before_after::mul>(functor);
sigh.publish(2);
ASSERT_EQ(functor.value, 6);
}
TEST_F(SigH, BeforeMemberFunction) {
entt::sigh<void(int)> sigh;
entt::sink sink{sigh};
before_after functor;
sink.connect<&before_after::static_add>();
sink.connect<&before_after::add>(functor);
sink.before<&before_after::add>(functor).connect<&before_after::mul>(functor);
sigh.publish(2);
ASSERT_EQ(functor.value, 6);
}
TEST_F(SigH, BeforeFunctionWithPayload) {
entt::sigh<void(int)> sigh;
entt::sink sink{sigh};
before_after functor;
sink.connect<&before_after::static_add>();
sink.connect<&before_after::static_mul>(functor);
sink.before<&before_after::static_mul>(functor).connect<&before_after::add>(functor);
sigh.publish(2);
ASSERT_EQ(functor.value, 8);
}
TEST_F(SigH, BeforeInstanceOrPayload) {
entt::sigh<void(int)> sigh;
entt::sink sink{sigh};
before_after functor;
sink.connect<&before_after::static_mul>(functor);
sink.connect<&before_after::add>(functor);
sink.before(functor).connect<&before_after::static_add>();
sigh.publish(2);
ASSERT_EQ(functor.value, 6);
}
TEST_F(SigH, BeforeAnythingElse) {
entt::sigh<void(int)> sigh;
entt::sink sink{sigh};
before_after functor;
sink.connect<&before_after::add>(functor);
sink.before().connect<&before_after::mul>(functor);
sigh.publish(2);
ASSERT_EQ(functor.value, 2);
}
TEST_F(SigH, BeforeListenerNotPresent) {
entt::sigh<void(int)> sigh;
entt::sink sink{sigh};
before_after functor;
sink.connect<&before_after::mul>(functor);
sink.before<&before_after::add>(&functor).connect<&before_after::add>(functor);
sigh.publish(2);
ASSERT_EQ(functor.value, 2);
}
TEST_F(SigH, UnboundDataMember) {
sigh_listener listener;
entt::sigh<bool &(sigh_listener &)> sigh;
entt::sink sink{sigh};
ASSERT_FALSE(listener.k);
sink.connect<&sigh_listener::k>();
sigh.collect([](bool &value) { value = !value; }, listener);
ASSERT_TRUE(listener.k);
}
TEST_F(SigH, UnboundMemberFunction) {
sigh_listener listener;
entt::sigh<void(sigh_listener *, int)> sigh;
entt::sink sink{sigh};
ASSERT_FALSE(listener.k);
sink.connect<&sigh_listener::g>();
sigh.publish(&listener, 42);
ASSERT_TRUE(listener.k);
}
TEST_F(SigH, CustomAllocator) {
std::allocator<void (*)(int)> allocator;
entt::sigh<void(int), decltype(allocator)> sigh{allocator};
ASSERT_EQ(sigh.get_allocator(), allocator);
ASSERT_FALSE(sigh.get_allocator() != allocator);
ASSERT_TRUE(sigh.empty());
entt::sink sink{sigh};
sigh_listener listener;
sink.template connect<&sigh_listener::g>(listener);
decltype(sigh) copy{sigh, allocator};
sink.disconnect(listener);
ASSERT_TRUE(sigh.empty());
ASSERT_FALSE(copy.empty());
sigh = copy;
ASSERT_FALSE(sigh.empty());
ASSERT_FALSE(copy.empty());
decltype(sigh) move{std::move(copy), allocator};
ASSERT_TRUE(copy.empty());
ASSERT_FALSE(move.empty());
sink = entt::sink{move};
sink.disconnect(&listener);
ASSERT_TRUE(copy.empty());
ASSERT_TRUE(move.empty());
sink.template connect<&sigh_listener::g>(listener);
copy.swap(move);
ASSERT_FALSE(copy.empty());
ASSERT_TRUE(move.empty());
sink = entt::sink{copy};
sink.disconnect();
ASSERT_TRUE(copy.empty());
ASSERT_TRUE(move.empty());
}