Aegisub/tests/tests/signals.cpp

100 lines
2 KiB
C++

// Copyright (c) 2010, Thomas Goyne <plorkyeran@aegisub.org>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
#include <libaegisub/signal.h>
#include "main.h"
using namespace agi::signal;
struct increment {
int *num;
increment(int &num) : num(&num) { }
void operator()() const { ++*num; }
void operator()(int n) const { *num += n; }
};
TEST(lagi_signal, basic) {
Signal<> s;
int x = 0;
Connection c = s.Connect(increment(x));
EXPECT_EQ(0, x);
s();
EXPECT_EQ(1, x);
}
TEST(lagi_signal, multiple) {
Signal<> s;
int x = 0;
Connection c1 = s.Connect(increment(x));
Connection c2 = s.Connect(increment(x));
EXPECT_EQ(0, x);
s();
EXPECT_EQ(2, x);
}
TEST(lagi_signal, manual_disconnect) {
Signal<> s;
int x = 0;
Connection c1 = s.Connect(increment(x));
EXPECT_EQ(0, x);
s();
EXPECT_EQ(1, x);
c1.Disconnect();
s();
EXPECT_EQ(1, x);
}
TEST(lagi_signal, auto_disconnect) {
Signal<> s;
int x = 0;
EXPECT_EQ(0, x);
{
Connection c = s.Connect(increment(x));
s();
EXPECT_EQ(1, x);
}
s();
EXPECT_EQ(1, x);
}
TEST(lagi_signal, connection_outlives_slot) {
int x = 0;
Connection c;
EXPECT_EQ(0, x);
{
Signal<> s;
c = s.Connect(increment(x));
s();
EXPECT_EQ(1, x);
}
c.Disconnect();
}
TEST(lagi_signal, one_arg) {
Signal<int> s;
int x = 0;
Connection c = s.Connect(increment(x));
s(0);
EXPECT_EQ(0, x);
s(10);
EXPECT_EQ(10, x);
s(20);
EXPECT_EQ(30, x);
}