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28
29#include <QtCore/QCoreApplication>
30#include <QtCore/QProcess>
31#include <QtCore/QThread>
32#include <QtTest>
33
34class tst_QProcessNoApplication : public QObject
35{
36 Q_OBJECT
37
38private Q_SLOTS:
39 void initializationDeadlock();
40};
41
42void tst_QProcessNoApplication::initializationDeadlock()
43{
44 // see QTBUG-27260
45 // QProcess on Unix uses (or used to, at the time of the writing of this test)
46 // a global class called QProcessManager.
47 // This class is instantiated (or was) only in the main thread, which meant that
48 // blocking the main thread while waiting for QProcess could mean a deadlock.
49
50 struct MyThread : public QThread
51 {
52 void run()
53 {
54 // what we execute does not matter, as long as we try to
55 // and that the process exits
56 QProcess::execute(command: "true");
57 }
58 };
59
60 char *argv[] = { const_cast<char*>(QTest::currentAppName()), 0 };
61 int argc = 1;
62 QCoreApplication app(argc, argv);
63 MyThread thread;
64 thread.start();
65 QVERIFY(thread.wait(10000));
66}
67
68QTEST_APPLESS_MAIN(tst_QProcessNoApplication)
69
70#include "tst_qprocessnoapplication.moc"
71

source code of qtbase/tests/auto/corelib/io/qprocess-noapplication/tst_qprocessnoapplication.cpp