Revision control
++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ #include <QtTest/QtTest>
++
++ #include "qeventtransition.h"
++ #include "qhistorystate.h"
++ #include "qstate.h"
++ #include "qstatemachine.h"
++ #include "qsignaltransition.h"
++
++ class tst_QState : public QObject
++ {
++ Q_OBJECT
++
++ private slots:
++ void assignProperty();
++ void assignPropertyTwice();
++ void historyInitialState();
++ void transitions();
++ void privateSignals();
++ void parallelStateAndInitialState();
++ };
++
++ class TestClass: public QObject
++ {
++ Q_OBJECT
++ public:
++ TestClass() : called(false) {}
++ bool called;
++
++ public slots:
++ void slot() { called = true; }
++
++
++ };
++
++ void tst_QState::assignProperty()
++ {
++ QStateMachine machine;
++
++ QObject object;
++ object.setProperty("fooBar", 10);
++
++ QState *s1 = new QState(&machine);
++ s1->assignProperty(&object, "fooBar", 20);
++
++ machine.setInitialState(s1);
++ machine.start();
++
++ QTRY_COMPARE(object.property("fooBar").toInt(), 20);
++ }
++
++ void tst_QState::assignPropertyTwice()
++ {
++ QStateMachine machine;
++
++ QObject object;
++ object.setProperty("fooBar", 10);
++
++ QState *s1 = new QState(&machine);
++ s1->assignProperty(&object, "fooBar", 20);
++ s1->assignProperty(&object, "fooBar", 30);
++
++ machine.setInitialState(s1);
++ machine.start();
++
++ QTRY_COMPARE(object.property("fooBar").toInt(), 30);
++ }
++
++ class EventTestTransition: public QAbstractTransition
++ {
++ public:
++ EventTestTransition(QEvent::Type type, QState *targetState)
++ : QAbstractTransition(), m_type(type)
++ {
++ setTargetState(targetState);
++ }
++
++ protected:
++ bool eventTest(QEvent *e) override
++ {
++ return e->type() == m_type;
++ }
++
++ void onTransition(QEvent *) override {}
++
++ private:
++ QEvent::Type m_type;
++
++ };
++
++ void tst_QState::historyInitialState()
++ {
++ QStateMachine machine;
++
++ QState *s1 = new QState(&machine);
++
++ QState *s2 = new QState(&machine);
++ QHistoryState *h1 = new QHistoryState(s2);
++
++ s2->setInitialState(h1);
++
++ QState *s3 = new QState(s2);
++ h1->setDefaultState(s3);
++
++ QState *s4 = new QState(s2);
++
++ s1->addTransition(new EventTestTransition(QEvent::User, s2));
++ s2->addTransition(new EventTestTransition(QEvent::User, s1));
++ s3->addTransition(new EventTestTransition(QEvent::Type(QEvent::User+1), s4));
++
++ machine.setInitialState(s1);
++ machine.start();
++ QCoreApplication::processEvents();
++
++ QTRY_COMPARE(machine.configuration().size(), 1);
++ QTRY_VERIFY(machine.configuration().contains(s1));
++
++ machine.postEvent(new QEvent(QEvent::User));
++ QCoreApplication::processEvents();
++
++ QTRY_COMPARE(machine.configuration().size(), 2);
++ QTRY_VERIFY(machine.configuration().contains(s2));
++ QTRY_VERIFY(machine.configuration().contains(s3));
++
++ machine.postEvent(new QEvent(QEvent::User));
++ QCoreApplication::processEvents();
++
++ QTRY_COMPARE(machine.configuration().size(), 1);
++ QTRY_VERIFY(machine.configuration().contains(s1));
++
++ machine.postEvent(new QEvent(QEvent::User));
++ QCoreApplication::processEvents();
++
++ QTRY_COMPARE(machine.configuration().size(), 2);
++ QTRY_VERIFY(machine.configuration().contains(s2));
++ QTRY_VERIFY(machine.configuration().contains(s3));
++
++ machine.postEvent(new QEvent(QEvent::Type(QEvent::User+1)));
++ QCoreApplication::processEvents();
++
++ QTRY_COMPARE(machine.configuration().size(), 2);
++ QTRY_VERIFY(machine.configuration().contains(s2));
++ QTRY_VERIFY(machine.configuration().contains(s4));
++
++ machine.postEvent(new QEvent(QEvent::User));
++ QCoreApplication::processEvents();
++
++ QTRY_COMPARE(machine.configuration().size(), 1);
++ QTRY_VERIFY(machine.configuration().contains(s1));
++
++ machine.postEvent(new QEvent(QEvent::User));
++ QCoreApplication::processEvents();
++
++ QTRY_COMPARE(machine.configuration().size(), 2);
++ QTRY_VERIFY(machine.configuration().contains(s2));
++ QTRY_VERIFY(machine.configuration().contains(s4));
++ }
++
++ void tst_QState::transitions()
++ {
++ QState s1;
++ QState s2;
++
++ QVERIFY(s1.transitions().isEmpty());
++
++ QAbstractTransition *t1 = s1.addTransition(this, SIGNAL(destroyed()), &s2);
++ QAbstractTransition *t1_1 = s1.addTransition(this, &tst_QState::destroyed, &s2);
++ QVERIFY(t1 != 0);
++ QVERIFY(t1_1 != 0);
++ QCOMPARE(s1.transitions().size(), 2);
++ QCOMPARE(s1.transitions().first(), t1);
++ QCOMPARE(s1.transitions().last(), t1_1);
++ QVERIFY(s2.transitions().isEmpty());
++
++ s1.removeTransition(t1);
++ s1.removeTransition(t1_1); // Releases ownership!
++ delete t1_1; // So, delete manually.
++ QVERIFY(s1.transitions().isEmpty());
++
++ s1.addTransition(t1);
++ QCOMPARE(s1.transitions().size(), 1);
++ QCOMPARE(s1.transitions().first(), t1);
++
++ QAbstractTransition *t2 = new QEventTransition(&s1);
++ QCOMPARE(s1.transitions().size(), 2);
++ QVERIFY(s1.transitions().contains(t1));
++ QVERIFY(s1.transitions().contains(t2));
++
++ // Transitions from child states should not be reported.
++ QState *s21 = new QState(&s2);
++ QAbstractTransition *t3 = s21->addTransition(this, SIGNAL(destroyed()), &s2);
++ QVERIFY(s2.transitions().isEmpty());
++ QCOMPARE(s21->transitions().size(), 1);
++ QCOMPARE(s21->transitions().first(), t3);
++ }
++
++ class MyState : public QState
++ {
++ Q_OBJECT
++ public:
++ MyState(QState *parent = 0)
++ : QState(parent)
++ {
++
++ }
++
++ void emitPrivateSignals()
++ {
++ // These deliberately do not compile
++ // emit entered();
++ // emit exited();
++ //
++ // emit entered(QPrivateSignal());
++ // emit exited(QPrivateSignal());
++ //
++ // emit entered(QAbstractState::QPrivateSignal());
++ // emit exited(QAbstractState::QPrivateSignal());
++ }
++
++ };
++
++ class MyTransition : public QSignalTransition
++ {
++ Q_OBJECT
++ public:
++ MyTransition(QObject * sender, const char * signal, QState *sourceState = 0)
++ : QSignalTransition(sender, signal, sourceState)
++ {
++
++ }
++
++ void emitPrivateSignals()
++ {
++ // These deliberately do not compile
++ // emit triggered();
++ //
++ // emit triggered(QPrivateSignal());
++ //
++ // emit triggered(QAbstractTransition::QPrivateSignal());
++ }
++ };
++
++ class SignalConnectionTester : public QObject
++ {
++ Q_OBJECT
++ public:
++ SignalConnectionTester(QObject *parent = 0)
++ : QObject(parent), testPassed(false)
++ {
++
++ }
++
++ public Q_SLOTS:
++ void testSlot()
++ {
++ testPassed = true;
++ }
++
++ public:
++ bool testPassed;
++ };
++
++ class TestTrigger : public QObject
++ {
++ Q_OBJECT
++ public:
++ TestTrigger(QObject *parent = 0)
++ : QObject(parent)
++ {
++
++ }
++
++ void emitTrigger()
++ {
++ emit trigger();
++ }
++
++ signals:
++ void trigger();
++ };
++
++ void tst_QState::privateSignals()
++ {
++ QStateMachine machine;
++
++ QState *s1 = new QState(&machine);
++ MyState *s2 = new MyState(&machine);
++
++ TestTrigger testTrigger;
++
++ MyTransition *t1 = new MyTransition(&testTrigger, SIGNAL(trigger()), s1);
++ s1->addTransition(t1);
++ t1->setTargetState(s2);
++
++ machine.setInitialState(s1);
++ machine.start();
++ QCoreApplication::processEvents();
++
++ SignalConnectionTester s1Tester;
++ SignalConnectionTester s2Tester;
++ SignalConnectionTester t1Tester;
++
++ QObject::connect(s1, &QState::exited, &s1Tester, &SignalConnectionTester::testSlot);
++ QObject::connect(s2, &QState::entered, &s2Tester, &SignalConnectionTester::testSlot);
++ QObject::connect(t1, &QSignalTransition::triggered, &t1Tester, &SignalConnectionTester::testSlot);
++
++ testTrigger.emitTrigger();
++
++ QCoreApplication::processEvents();
++
++ QTRY_VERIFY(s1Tester.testPassed);
++ QTRY_VERIFY(s2Tester.testPassed);
++ QTRY_VERIFY(t1Tester.testPassed);
++
++ }
++
++ void tst_QState::parallelStateAndInitialState()
++ {
++ QStateMachine machine;
++
++ { // setting an initial state on a parallel state:
++ QState a(QState::ParallelStates, &machine);
++ QState b(&a);
++ QVERIFY(!a.initialState());
++ const QString warning
++ = QString::asprintf("QState::setInitialState: ignoring attempt to set initial state of parallel state group %p", &a);
++ QTest::ignoreMessage(QtWarningMsg, qPrintable(warning));
++ a.setInitialState(&b); // should produce a warning and do nothing.
++ QVERIFY(!a.initialState());
++ }
++
++ { // setting the child-mode from ExclusiveStates to ParallelStates should remove the initial state:
++ QState a(QState::ExclusiveStates, &machine);
++ QState b(&a);
++ a.setInitialState(&b);
++ QCOMPARE(a.initialState(), &b);
++ const QString warning
++ = QString::asprintf("QState::setChildMode: setting the child-mode of state %p to "
++ "parallel removes the initial state", &a);
++ QTest::ignoreMessage(QtWarningMsg, qPrintable(warning));
++ a.setChildMode(QState::ParallelStates); // should produce a warning and remove the initial state
++ QVERIFY(!a.initialState());
++ QCOMPARE(a.childMode(), QState::ParallelStates);
++ }
++ }
++
++ QTEST_MAIN(tst_QState)
++ #include "tst_qstate.moc"