pollymc/tests/Task_test.cpp

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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>
#include <array>
/* 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 ConcurrentTask {
Q_OBJECT
void startNext() override
{
// This is here only to help fill the stack a bit more quickly (if there's an issue, of course :^))
// Each tasks thus adds 1024 * 4 bytes to the stack, at the very least.
[[maybe_unused]] volatile std::array<uint32_t, 1024> some_data_on_the_stack {};
ConcurrentTask::startNext();
}
};
class BigConcurrentTaskThread : public QThread {
Q_OBJECT
BigConcurrentTask 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.
// Considering each tasks, in a problematic state, adds 1024 * 4 bytes to the stack,
// this number is enough to fill up 16 MiB of stack, more than enough to cause a problem.
static const unsigned s_num_tasks = 1 << 12;
auto sub_tasks = new BasicTask::Ptr[s_num_tasks];
for (unsigned i = 0; i < s_num_tasks; i++) {
sub_tasks[i] = makeShared<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(){
auto t1 = makeShared<BasicTask>();
auto t2 = makeShared<BasicTask>();
auto t3 = makeShared<BasicTask>();
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(){
auto t1 = makeShared<BasicTask>();
auto t2 = makeShared<BasicTask>();
auto t3 = makeShared<BasicTask>();
auto t4 = makeShared<BasicTask>();
auto t5 = makeShared<BasicTask>();
auto t6 = makeShared<BasicTask>();
auto t7 = makeShared<BasicTask>();
auto t8 = makeShared<BasicTask>();
auto t9 = makeShared<BasicTask>();
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(){
auto t1 = makeShared<BasicTask>();
auto t2 = makeShared<BasicTask>();
auto t3 = makeShared<BasicTask>();
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(){
auto t1 = makeShared<BasicTask>();
auto t2 = makeShared<BasicTask>();
auto t3 = makeShared<BasicTask>();
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 BigConcurrentTaskThread;
connect(thread, &BigConcurrentTaskThread::finished, &loop, &QEventLoop::quit);
thread->start();
loop.exec();
QVERIFY(!thread->passed_the_deadline);
thread->deleteLater();
}
};
QTEST_GUILESS_MAIN(TaskTest)
#include "Task_test.moc"