test: Add tests for PosixSignalNotifier

cmake/Testing.cmake

@@ -21,3 +21,4 @@ endfunction()
 auto_test(core toxpk)
 auto_test(core toxid)
 auto_test(chatlog textformatter)
+auto_test(platform posixsignalnotifier)

test/platform/posixsignalnotifier_test.cpp

@@ -0,0 +1,105 @@
+/*
+    Copyright © 2017 by The qTox Project Contributors
+
+    This file is part of qTox, a Qt-based graphical interface for Tox.
+
+    qTox is libre software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    qTox is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with qTox.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "src/platform/posixsignalnotifier.h"
+
+#include <QtTest/QtTest>
+#include <QCoreApplication>
+#include <QSignalSpy>
+#include <signal.h>
+#include <unistd.h>
+
+class TestPosixSignalNotifier : public QObject
+{
+    Q_OBJECT
+private slots:
+    void checkUsrSignalHandling();
+    void checkIgnoreExtraSignals();
+    void checkTermSignalsHandling();
+};
+
+constexpr int TIMEOUT = 10;
+
+void TestPosixSignalNotifier::checkUsrSignalHandling()
+{
+    PosixSignalNotifier& psn = PosixSignalNotifier::globalInstance();
+    psn.watchSignal(SIGUSR1);
+    QSignalSpy spy(&psn, &PosixSignalNotifier::activated);
+    kill(getpid(), SIGUSR1);
+
+    for (int i = 0; i < TIMEOUT && spy.count() != 1; ++i) {
+        QCoreApplication::processEvents();
+        sleep(1);
+    }
+
+    QCOMPARE(spy.count(), 1);
+    const QList<QVariant>& args = spy.first();
+    QCOMPARE(args.first().toInt(), SIGUSR1);
+}
+
+void sighandler(int) {
+}
+
+void TestPosixSignalNotifier::checkIgnoreExtraSignals()
+{
+    PosixSignalNotifier& psn = PosixSignalNotifier::globalInstance();
+    psn.watchSignal(SIGUSR1);
+    QSignalSpy spy(&psn, &PosixSignalNotifier::activated);
+
+    // To avoid kiiling
+    signal(SIGUSR2, sighandler);
+    kill(getpid(), SIGUSR2);
+
+    for (int i = 0; i < TIMEOUT; ++i) {
+        QCoreApplication::processEvents();
+        sleep(1);
+    }
+
+    QCOMPARE(spy.count(), 0);
+}
+
+void TestPosixSignalNotifier::checkTermSignalsHandling()
+{
+    PosixSignalNotifier& psn = PosixSignalNotifier::globalInstance();
+    psn.watchCommonTerminatingSignals();
+    QSignalSpy spy(&psn, &PosixSignalNotifier::activated);
+
+    const std::initializer_list<int> termSignals = {SIGHUP, SIGINT, SIGQUIT, SIGTERM};
+    for (int signal : termSignals) {
+        QCoreApplication::processEvents();
+        kill(getpid(), signal);
+        sleep(1);
+    }
+
+    for (int i = 0; i < TIMEOUT && static_cast<size_t>(spy.size()) != termSignals.size(); i++) {
+        QCoreApplication::processEvents();
+        sleep(1);
+    }
+
+    QCOMPARE(static_cast<size_t>(spy.size()), termSignals.size());
+
+    for (size_t i = 0; i < termSignals.size(); ++i) {
+        const QList<QVariant>& args = spy.at(static_cast<int>(i));
+        int signal = *(termSignals.begin() + i);
+        QCOMPARE(args.first().toInt(), signal);
+    }
+}
+
+QTEST_GUILESS_MAIN(TestPosixSignalNotifier)
+#include "posixsignalnotifier_test.moc"