tests/auto/declarative/qdeclarativebinding/tst_qdeclarativebinding.cpp

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  41 #include <qtest.h>
  42 #include <QtDeclarative/qdeclarativeengine.h>
  43 #include <QtDeclarative/qdeclarativecomponent.h>
  44 #include <private/qdeclarativebind_p.h>
  45 #include <QtQuick/private/qquickrectangle_p.h>
  46 #include "../../shared/util.h"
  47
  48 class tst_qdeclarativebinding : public QDeclarativeDataTest
  49 {
  50     Q_OBJECT
  51 public:
  52     tst_qdeclarativebinding();
  53
  54 private slots:
  55     void binding();
  56     void whenAfterValue();
  57     void restoreBinding();
  58     void restoreBindingWithLoop();
  59     void deletedObject();
  60
  61 private:
  62     QDeclarativeEngine engine;
  63 };
  64
  65 tst_qdeclarativebinding::tst_qdeclarativebinding()
  66 {
  67 }
  68
  69 void tst_qdeclarativebinding::binding()
  70 {
  71     QDeclarativeEngine engine;
  72     QDeclarativeComponent c(&engine, testFileUrl("test-binding.qml"));
  73     QQuickRectangle *rect = qobject_cast<QQuickRectangle*>(c.create());
  74     QVERIFY(rect != 0);
  75
  76     QDeclarativeBind *binding3 = qobject_cast<QDeclarativeBind*>(rect->findChild<QDeclarativeBind*>("binding3"));
  77     QVERIFY(binding3 != 0);
  78
  79     QCOMPARE(rect->color(), QColor("yellow"));
  80     QCOMPARE(rect->property("text").toString(), QString("Hello"));
  81     QCOMPARE(binding3->when(), false);
  82
  83     rect->setProperty("changeColor", true);
  84     QCOMPARE(rect->color(), QColor("red"));
  85
  86     QCOMPARE(binding3->when(), true);
  87
  88     QDeclarativeBind *binding = qobject_cast<QDeclarativeBind*>(rect->findChild<QDeclarativeBind*>("binding1"));
  89     QVERIFY(binding != 0);
  90     QCOMPARE(binding->object(), qobject_cast<QObject*>(rect));
  91     QCOMPARE(binding->property(), QLatin1String("text"));
  92     QCOMPARE(binding->value().toString(), QLatin1String("Hello"));
  93
  94     delete rect;
  95 }
  96
  97 void tst_qdeclarativebinding::whenAfterValue()
  98 {
  99     QDeclarativeEngine engine;
 100     QDeclarativeComponent c(&engine, testFileUrl("test-binding2.qml"));
 101     QQuickRectangle *rect = qobject_cast<QQuickRectangle*>(c.create());
 102
 103     QVERIFY(rect != 0);
 104     QCOMPARE(rect->color(), QColor("yellow"));
 105     QCOMPARE(rect->property("text").toString(), QString("Hello"));
 106
 107     rect->setProperty("changeColor", true);
 108     QCOMPARE(rect->color(), QColor("red"));
 109
 110     delete rect;
 111 }
 112
 113 void tst_qdeclarativebinding::restoreBinding()
 114 {
 115     QDeclarativeEngine engine;
 116     QDeclarativeComponent c(&engine, testFileUrl("restoreBinding.qml"));
 117     QQuickRectangle *rect = qobject_cast<QQuickRectangle*>(c.create());
 118     QVERIFY(rect != 0);
 119
 120     QQuickRectangle *myItem = qobject_cast<QQuickRectangle*>(rect->findChild<QQuickRectangle*>("myItem"));
 121     QVERIFY(myItem != 0);
 122
 123     myItem->setY(25);
 124     QCOMPARE(myItem->x(), qreal(100-25));
 125
 126     myItem->setY(13);
 127     QCOMPARE(myItem->x(), qreal(100-13));
 128
 129     //Binding takes effect
 130     myItem->setY(51);
 131     QCOMPARE(myItem->x(), qreal(51));
 132
 133     myItem->setY(88);
 134     QCOMPARE(myItem->x(), qreal(88));
 135
 136     //original binding restored
 137     myItem->setY(49);
 138     QCOMPARE(myItem->x(), qreal(100-49));
 139
 140     delete rect;
 141 }
 142
 143 void tst_qdeclarativebinding::restoreBindingWithLoop()
 144 {
 145     QDeclarativeEngine engine;
 146     QDeclarativeComponent c(&engine, testFileUrl("restoreBindingWithLoop.qml"));
 147     QQuickRectangle *rect = qobject_cast<QQuickRectangle*>(c.create());
 148     QVERIFY(rect != 0);
 149
 150     QQuickRectangle *myItem = qobject_cast<QQuickRectangle*>(rect->findChild<QQuickRectangle*>("myItem"));
 151     QVERIFY(myItem != 0);
 152
 153     myItem->setY(25);
 154     QCOMPARE(myItem->x(), qreal(25 + 100));
 155
 156     myItem->setY(13);
 157     QCOMPARE(myItem->x(), qreal(13 + 100));
 158
 159     //Binding takes effect
 160     rect->setProperty("activateBinding", true);
 161     myItem->setY(51);
 162     QCOMPARE(myItem->x(), qreal(51));
 163
 164     myItem->setY(88);
 165     QCOMPARE(myItem->x(), qreal(88));
 166
 167     //original binding restored
 168     QString warning = c.url().toString() + QLatin1String(":9:5: QML Rectangle: Binding loop detected for property \"x\"");
 169     QTest::ignoreMessage(QtWarningMsg, qPrintable(warning));
 170     rect->setProperty("activateBinding", false);
 171     QCOMPARE(myItem->x(), qreal(88 + 100)); //if loop handling changes this could be 90 + 100
 172
 173     myItem->setY(49);
 174     QCOMPARE(myItem->x(), qreal(49 + 100));
 175
 176     delete rect;
 177 }
 178
 179 //QTBUG-20692
 180 void tst_qdeclarativebinding::deletedObject()
 181 {
 182     QDeclarativeEngine engine;
 183     QDeclarativeComponent c(&engine, testFileUrl("deletedObject.qml"));
 184     QQuickRectangle *rect = qobject_cast<QQuickRectangle*>(c.create());
 185     QVERIFY(rect != 0);
 186
 187     QGuiApplication::sendPostedEvents(0, QEvent::DeferredDelete);
 188
 189     //don't crash
 190     rect->setProperty("activateBinding", true);
 191
 192     delete rect;
 193 }
 194
 195 QTEST_MAIN(tst_qdeclarativebinding)
 196
 197 #include "tst_qdeclarativebinding.moc"