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#include <QTest>
#include <QTimer>
#include <QThread>
#include <tasks/ConcurrentTask.h>
#include <tasks/MultipleOptionsTask.h>
#include <tasks/SequentialTask.h>
#include <tasks/Task.h>
/* Does nothing. Only used for testing. */
class BasicTask : public Task {
Q_OBJECT
friend class TaskTest;
public:
BasicTask(bool show_debug_log = true) : Task(nullptr, show_debug_log) {}
private:
void executeTask() override
{
emitSucceeded();
};
};
/* Does nothing. Only used for testing. */
class BasicTask_MultiStep : public Task {
Q_OBJECT
friend class TaskTest;
private:
auto isMultiStep() const -> bool override { return true; }
void executeTask() override {};
};
class BigConcurrentTask : public QThread {
Q_OBJECT
ConcurrentTask big_task;
void run() override
{
QTimer deadline;
deadline.setInterval(10000);
connect(&deadline, &QTimer::timeout, this, [this]{ passed_the_deadline = true; });
deadline.start();
// NOTE: Arbitrary value that manages to trigger a problem when there is one.
static const unsigned s_num_tasks = 1 << 14;
auto sub_tasks = new BasicTask*[s_num_tasks];
for (unsigned i = 0; i < s_num_tasks; i++) {
sub_tasks[i] = new BasicTask(false);
big_task.addTask(sub_tasks[i]);
}
big_task.run();
while (!big_task.isFinished() && !passed_the_deadline)
QCoreApplication::processEvents();
emit finished();
}
public:
bool passed_the_deadline = false;
signals:
void finished();
};
class TaskTest : public QObject {
Q_OBJECT
private slots:
void test_SetStatus_NoMultiStep(){
BasicTask t;
QString status {"test status"};
t.setStatus(status);
QCOMPARE(t.getStatus(), status);
QCOMPARE(t.getStepStatus(), status);
}
void test_SetStatus_MultiStep(){
BasicTask_MultiStep t;
QString status {"test status"};
t.setStatus(status);
QCOMPARE(t.getStatus(), status);
// Even though it is multi step, it does not override the getStepStatus method,
// so it should remain the same.
QCOMPARE(t.getStepStatus(), status);
}
void test_SetProgress(){
BasicTask t;
int current = 42;
int total = 207;
t.setProgress(current, total);
QCOMPARE(t.getProgress(), current);
QCOMPARE(t.getTotalProgress(), total);
}
void test_basicRun(){
BasicTask t;
QObject::connect(&t, &Task::finished, [&]{ QVERIFY2(t.wasSuccessful(), "Task finished but was not successful when it should have been."); });
t.start();
QVERIFY2(QTest::qWaitFor([&]() {
return t.isFinished();
}, 1000), "Task didn't finish as it should.");
}
void test_basicConcurrentRun(){
BasicTask t1;
BasicTask t2;
BasicTask t3;
ConcurrentTask t;
t.addTask(&t1);
t.addTask(&t2);
t.addTask(&t3);
QObject::connect(&t, &Task::finished, [&]{
QVERIFY2(t.wasSuccessful(), "Task finished but was not successful when it should have been.");
QVERIFY(t1.wasSuccessful());
QVERIFY(t2.wasSuccessful());
QVERIFY(t3.wasSuccessful());
});
t.start();
QVERIFY2(QTest::qWaitFor([&]() {
return t.isFinished();
}, 1000), "Task didn't finish as it should.");
}
// Tests if starting new tasks after the 6 initial ones is working
void test_moreConcurrentRun(){
BasicTask t1, t2, t3, t4, t5, t6, t7, t8, t9;
ConcurrentTask t;
t.addTask(&t1);
t.addTask(&t2);
t.addTask(&t3);
t.addTask(&t4);
t.addTask(&t5);
t.addTask(&t6);
t.addTask(&t7);
t.addTask(&t8);
t.addTask(&t9);
QObject::connect(&t, &Task::finished, [&]{
QVERIFY2(t.wasSuccessful(), "Task finished but was not successful when it should have been.");
QVERIFY(t1.wasSuccessful());
QVERIFY(t2.wasSuccessful());
QVERIFY(t3.wasSuccessful());
QVERIFY(t4.wasSuccessful());
QVERIFY(t5.wasSuccessful());
QVERIFY(t6.wasSuccessful());
QVERIFY(t7.wasSuccessful());
QVERIFY(t8.wasSuccessful());
QVERIFY(t9.wasSuccessful());
});
t.start();
QVERIFY2(QTest::qWaitFor([&]() {
return t.isFinished();
}, 1000), "Task didn't finish as it should.");
}
void test_basicSequentialRun(){
BasicTask t1;
BasicTask t2;
BasicTask t3;
SequentialTask t;
t.addTask(&t1);
t.addTask(&t2);
t.addTask(&t3);
QObject::connect(&t, &Task::finished, [&]{
QVERIFY2(t.wasSuccessful(), "Task finished but was not successful when it should have been.");
QVERIFY(t1.wasSuccessful());
QVERIFY(t2.wasSuccessful());
QVERIFY(t3.wasSuccessful());
});
t.start();
QVERIFY2(QTest::qWaitFor([&]() {
return t.isFinished();
}, 1000), "Task didn't finish as it should.");
}
void test_basicMultipleOptionsRun(){
BasicTask t1;
BasicTask t2;
BasicTask t3;
MultipleOptionsTask t;
t.addTask(&t1);
t.addTask(&t2);
t.addTask(&t3);
QObject::connect(&t, &Task::finished, [&]{
QVERIFY2(t.wasSuccessful(), "Task finished but was not successful when it should have been.");
QVERIFY(t1.wasSuccessful());
QVERIFY(!t2.wasSuccessful());
QVERIFY(!t3.wasSuccessful());
});
t.start();
QVERIFY2(QTest::qWaitFor([&]() {
return t.isFinished();
}, 1000), "Task didn't finish as it should.");
}
void test_stackOverflowInConcurrentTask()
{
QEventLoop loop;
auto thread = new BigConcurrentTask;
// NOTE: This is an arbitrary value, big enough to not cause problems on normal execution, but low enough
// so that the number of tasks that needs to get ran to potentially cause a problem isn't too big.
thread->setStackSize(32 * 1024);
connect(thread, &BigConcurrentTask::finished, &loop, &QEventLoop::quit);
thread->start();
loop.exec();
QVERIFY(!thread->passed_the_deadline);
thread->deleteLater();
}
};
QTEST_GUILESS_MAIN(TaskTest)
#include "Task_test.moc"
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