tests/auto/qstate/tst_qstate.cpp
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
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     7 ** This file is part of the test suite module of the Qt Toolkit.
       
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     9 ** $QT_BEGIN_LICENSE:LGPL$
       
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    16 ** GNU Lesser General Public License Usage
       
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    20 ** packaging of this file.  Please review the following information to
       
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    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
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    33 **
       
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    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #include <QtTest/QtTest>
       
    43 
       
    44 #include "qstate.h"
       
    45 #include "qstatemachine.h"
       
    46 #include "qsignaltransition.h"
       
    47 
       
    48 // Will try to wait for the condition while allowing event processing
       
    49 #define QTRY_COMPARE(__expr, __expected) \
       
    50     do { \
       
    51         const int __step = 50; \
       
    52         const int __timeout = 5000; \
       
    53         if ((__expr) != (__expected)) { \
       
    54             QTest::qWait(0); \
       
    55         } \
       
    56         for (int __i = 0; __i < __timeout && ((__expr) != (__expected)); __i+=__step) { \
       
    57             QTest::qWait(__step); \
       
    58         } \
       
    59         QCOMPARE(__expr, __expected); \
       
    60     } while(0)
       
    61 
       
    62 //TESTED_CLASS=
       
    63 //TESTED_FILES=
       
    64 
       
    65 class tst_QState : public QObject
       
    66 {
       
    67     Q_OBJECT
       
    68 
       
    69 public:
       
    70     tst_QState();
       
    71     virtual ~tst_QState();
       
    72 
       
    73 private slots:
       
    74 #if 0
       
    75     void test();
       
    76 #endif
       
    77     void assignProperty();
       
    78     void assignPropertyTwice();
       
    79     void historyInitialState();
       
    80 
       
    81 private:
       
    82     bool functionCalled;
       
    83 };
       
    84 
       
    85 tst_QState::tst_QState() : functionCalled(false)
       
    86 {
       
    87 }
       
    88 
       
    89 tst_QState::~tst_QState()
       
    90 {
       
    91 }
       
    92 
       
    93 #if 0
       
    94 void tst_QState::test()
       
    95 {
       
    96     QStateMachine machine;
       
    97     QState *s1 = new QState(&machine);
       
    98 
       
    99     QCOMPARE(s1->machine(), &machine);
       
   100     QCOMPARE(s1->parentState(), &machine);
       
   101     QCOMPARE(s1->initialState(), (QState*)0);
       
   102     QVERIFY(s1->childStates().isEmpty());
       
   103     QVERIFY(s1->transitions().isEmpty());
       
   104 
       
   105     QCOMPARE(s1->isFinal(), false);
       
   106     s1->setFinal(true);
       
   107     QCOMPARE(s1->isFinal(), true);
       
   108     s1->setFinal(false);
       
   109     QCOMPARE(s1->isFinal(), false);
       
   110 
       
   111     QCOMPARE(s1->isParallel(), false);
       
   112     s1->setParallel(true);
       
   113     QCOMPARE(s1->isParallel(), true);
       
   114     s1->setParallel(false);
       
   115     QCOMPARE(s1->isParallel(), false);
       
   116 
       
   117     QCOMPARE(s1->isAtomic(), true);
       
   118     QCOMPARE(s1->isCompound(), false);
       
   119     QCOMPARE(s1->isComplex(), false);
       
   120 
       
   121     QState *s11 = new QState(s1);
       
   122     QCOMPARE(s11->parentState(), s1);
       
   123     QCOMPARE(s11->isAtomic(), true);
       
   124     QCOMPARE(s11->isCompound(), false);
       
   125     QCOMPARE(s11->isComplex(), false);
       
   126     QCOMPARE(s11->machine(), s1->machine());
       
   127     QVERIFY(s11->isDescendantOf(s1));
       
   128 
       
   129     QCOMPARE(s1->initialState(), (QState*)0);
       
   130     QCOMPARE(s1->childStates().size(), 1);
       
   131     QCOMPARE(s1->childStates().at(0), s11);
       
   132 
       
   133     QCOMPARE(s1->isAtomic(), false);
       
   134     QCOMPARE(s1->isCompound(), true);
       
   135     QCOMPARE(s1->isComplex(), true);
       
   136 
       
   137     s1->setParallel(true);
       
   138     QCOMPARE(s1->isAtomic(), false);
       
   139     QCOMPARE(s1->isCompound(), false);
       
   140     QCOMPARE(s1->isComplex(), true);
       
   141 
       
   142     QState *s12 = new QState(s1);
       
   143     QCOMPARE(s12->parentState(), s1);
       
   144     QCOMPARE(s12->isAtomic(), true);
       
   145     QCOMPARE(s12->isCompound(), false);
       
   146     QCOMPARE(s12->isComplex(), false);
       
   147     QCOMPARE(s12->machine(), s1->machine());
       
   148     QVERIFY(s12->isDescendantOf(s1));
       
   149     QVERIFY(!s12->isDescendantOf(s11));
       
   150 
       
   151     QCOMPARE(s1->initialState(), (QState*)0);
       
   152     QCOMPARE(s1->childStates().size(), 2);
       
   153     QCOMPARE(s1->childStates().at(0), s11);
       
   154     QCOMPARE(s1->childStates().at(1), s12);
       
   155 
       
   156     QCOMPARE(s1->isAtomic(), false);
       
   157     QCOMPARE(s1->isCompound(), false);
       
   158     QCOMPARE(s1->isComplex(), true);
       
   159 
       
   160     s1->setParallel(false);
       
   161     QCOMPARE(s1->isAtomic(), false);
       
   162     QCOMPARE(s1->isCompound(), true);
       
   163     QCOMPARE(s1->isComplex(), true);
       
   164 
       
   165     s1->setInitialState(s11);
       
   166     QCOMPARE(s1->initialState(), s11);
       
   167 
       
   168     s1->setInitialState(0);
       
   169     QCOMPARE(s1->initialState(), (QState*)0);
       
   170 
       
   171     s1->setInitialState(s12);
       
   172     QCOMPARE(s1->initialState(), s12);
       
   173 
       
   174     QState *s13 = new QState();
       
   175     s1->setInitialState(s13);
       
   176     QCOMPARE(s13->parentState(), s1);
       
   177     QCOMPARE(s1->childStates().size(), 3);
       
   178     QCOMPARE(s1->childStates().at(0), s11);
       
   179     QCOMPARE(s1->childStates().at(1), s12);
       
   180     QCOMPARE(s1->childStates().at(2), s13);
       
   181     QVERIFY(s13->isDescendantOf(s1));
       
   182 
       
   183     QVERIFY(s12->childStates().isEmpty());
       
   184 
       
   185     QState *s121 = new QState(s12);
       
   186     QCOMPARE(s121->parentState(), s12);
       
   187     QCOMPARE(s121->isAtomic(), true);
       
   188     QCOMPARE(s121->isCompound(), false);
       
   189     QCOMPARE(s121->isComplex(), false);
       
   190     QCOMPARE(s121->machine(), s12->machine());
       
   191     QVERIFY(s121->isDescendantOf(s12));
       
   192     QVERIFY(s121->isDescendantOf(s1));
       
   193     QVERIFY(!s121->isDescendantOf(s11));
       
   194 
       
   195     QCOMPARE(s12->childStates().size(), 1);
       
   196     QCOMPARE(s12->childStates().at(0), (QState*)s121);
       
   197 
       
   198     QCOMPARE(s1->childStates().size(), 3);
       
   199     QCOMPARE(s1->childStates().at(0), s11);
       
   200     QCOMPARE(s1->childStates().at(1), s12);
       
   201     QCOMPARE(s1->childStates().at(2), s13);
       
   202 
       
   203     s11->addTransition(s12);
       
   204     QCOMPARE(s11->transitions().size(), 1);
       
   205     QCOMPARE(s11->transitions().at(0)->sourceState(), s11);
       
   206     QCOMPARE(s11->transitions().at(0)->targetStates().size(), 1);
       
   207     QCOMPARE(s11->transitions().at(0)->targetStates().at(0), s12);
       
   208     QCOMPARE(s11->transitions().at(0)->eventType(), QEvent::None);
       
   209 
       
   210     QState *s14 = new QState();
       
   211     s12->addTransition(QList<QState*>() << s13 << s14);
       
   212     QCOMPARE(s12->transitions().size(), 1);
       
   213     QCOMPARE(s12->transitions().at(0)->sourceState(), s12);
       
   214     QCOMPARE(s12->transitions().at(0)->targetStates().size(), 2);
       
   215     QCOMPARE(s12->transitions().at(0)->targetStates().at(0), s13);
       
   216     QCOMPARE(s12->transitions().at(0)->targetStates().at(1), s14);
       
   217     QCOMPARE(s12->transitions().at(0)->eventType(), QEvent::None);
       
   218 
       
   219     s13->addTransition(this, SIGNAL(destroyed()), s14);
       
   220     QCOMPARE(s13->transitions().size(), 1);
       
   221     QCOMPARE(s13->transitions().at(0)->sourceState(), s13);
       
   222     QCOMPARE(s13->transitions().at(0)->targetStates().size(), 1);
       
   223     QCOMPARE(s13->transitions().at(0)->targetStates().at(0), s14);
       
   224     QCOMPARE(s13->transitions().at(0)->eventType(), QEvent::Signal);
       
   225     QVERIFY(qobject_cast<QSignalTransition*>(s13->transitions().at(0)) != 0);
       
   226 
       
   227     delete s13->transitions().at(0);
       
   228     QCOMPARE(s13->transitions().size(), 0);
       
   229 
       
   230     s12->addTransition(this, SIGNAL(destroyed()), s11);
       
   231     QCOMPARE(s12->transitions().size(), 2);
       
   232 }
       
   233 #endif
       
   234 
       
   235 class TestClass: public QObject
       
   236 {
       
   237     Q_OBJECT
       
   238 public:
       
   239     TestClass() : called(false) {}
       
   240     bool called;
       
   241 
       
   242 public slots:
       
   243     void slot() { called = true; }
       
   244 
       
   245     
       
   246 };
       
   247 
       
   248 void tst_QState::assignProperty()
       
   249 {
       
   250     QStateMachine machine;
       
   251 
       
   252     QObject *object = new QObject();
       
   253     object->setProperty("fooBar", 10);
       
   254 
       
   255     QState *s1 = new QState(&machine);
       
   256     s1->assignProperty(object, "fooBar", 20);
       
   257     
       
   258     machine.setInitialState(s1);
       
   259     machine.start();
       
   260     QCoreApplication::processEvents();
       
   261 
       
   262     QCOMPARE(object->property("fooBar").toInt(), 20);
       
   263 }
       
   264 
       
   265 void tst_QState::assignPropertyTwice()
       
   266 {
       
   267     QStateMachine machine;
       
   268 
       
   269     QObject *object = new QObject();
       
   270     object->setProperty("fooBar", 10);
       
   271 
       
   272     QState *s1 = new QState(&machine);
       
   273     s1->assignProperty(object, "fooBar", 20);
       
   274     s1->assignProperty(object, "fooBar", 30);
       
   275     
       
   276     machine.setInitialState(s1);
       
   277     machine.start();
       
   278     QCoreApplication::processEvents();
       
   279 
       
   280     QCOMPARE(object->property("fooBar").toInt(), 30);
       
   281 }
       
   282 
       
   283 class EventTestTransition: public QAbstractTransition
       
   284 {
       
   285 public:
       
   286     EventTestTransition(QEvent::Type type, QState *targetState) 
       
   287         : QAbstractTransition(), m_type(type)
       
   288     {
       
   289         setTargetState(targetState);
       
   290     }
       
   291 
       
   292 protected:
       
   293     bool eventTest(QEvent *e)
       
   294     {
       
   295         return e->type() == m_type;
       
   296     }
       
   297 
       
   298     void onTransition(QEvent *) {}
       
   299 
       
   300 private:
       
   301     QEvent::Type m_type;
       
   302     
       
   303 };
       
   304 
       
   305 void tst_QState::historyInitialState() 
       
   306 {
       
   307     QStateMachine machine;
       
   308 
       
   309     QState *s1 = new QState(&machine);
       
   310     
       
   311     QState *s2 = new QState(&machine);
       
   312     QHistoryState *h1 = new QHistoryState(s2);
       
   313     
       
   314     s2->setInitialState(h1);
       
   315 
       
   316     QState *s3 = new QState(s2);
       
   317     h1->setDefaultState(s3);
       
   318 
       
   319     QState *s4 = new QState(s2);
       
   320 
       
   321     s1->addTransition(new EventTestTransition(QEvent::User, s2));
       
   322     s2->addTransition(new EventTestTransition(QEvent::User, s1));
       
   323     s3->addTransition(new EventTestTransition(QEvent::Type(QEvent::User+1), s4));
       
   324 
       
   325     machine.setInitialState(s1);
       
   326     machine.start();
       
   327     QCoreApplication::processEvents();
       
   328 
       
   329     QCOMPARE(machine.configuration().size(), 1);
       
   330     QVERIFY(machine.configuration().contains(s1));
       
   331 
       
   332     machine.postEvent(new QEvent(QEvent::User));
       
   333     QCoreApplication::processEvents();
       
   334 
       
   335     QCOMPARE(machine.configuration().size(), 2);
       
   336     QVERIFY(machine.configuration().contains(s2));
       
   337     QVERIFY(machine.configuration().contains(s3));
       
   338 
       
   339     machine.postEvent(new QEvent(QEvent::User));
       
   340     QCoreApplication::processEvents();
       
   341 
       
   342     QCOMPARE(machine.configuration().size(), 1);
       
   343     QVERIFY(machine.configuration().contains(s1));
       
   344 
       
   345     machine.postEvent(new QEvent(QEvent::User));
       
   346     QCoreApplication::processEvents();
       
   347 
       
   348     QCOMPARE(machine.configuration().size(), 2);
       
   349     QVERIFY(machine.configuration().contains(s2));
       
   350     QVERIFY(machine.configuration().contains(s3));
       
   351 
       
   352     machine.postEvent(new QEvent(QEvent::Type(QEvent::User+1)));
       
   353     QCoreApplication::processEvents();
       
   354 
       
   355     QCOMPARE(machine.configuration().size(), 2);
       
   356     QVERIFY(machine.configuration().contains(s2));
       
   357     QVERIFY(machine.configuration().contains(s4));
       
   358 
       
   359     machine.postEvent(new QEvent(QEvent::User));
       
   360     QCoreApplication::processEvents();
       
   361 
       
   362     QCOMPARE(machine.configuration().size(), 1);
       
   363     QVERIFY(machine.configuration().contains(s1));
       
   364 
       
   365     machine.postEvent(new QEvent(QEvent::User));
       
   366     QCoreApplication::processEvents();
       
   367 
       
   368     QCOMPARE(machine.configuration().size(), 2);
       
   369     QVERIFY(machine.configuration().contains(s2));
       
   370     QVERIFY(machine.configuration().contains(s4));
       
   371 }
       
   372 
       
   373 
       
   374 QTEST_MAIN(tst_QState)
       
   375 #include "tst_qstate.moc"