tests/auto/declarative/qdeclarativecontext/tst_qdeclarativecontext.cpp
changeset 30 5dc02b23752f
child 33 3e2da88830cd
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/auto/declarative/qdeclarativecontext/tst_qdeclarativecontext.cpp	Tue Jul 06 15:10:48 2010 +0300
@@ -0,0 +1,463 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <qtest.h>
+#include <QDebug>
+#include <QDeclarativeEngine>
+#include <QDeclarativeContext>
+#include <QDeclarativeComponent>
+#include <QDeclarativeExpression>
+
+class tst_qdeclarativecontext : public QObject
+{
+    Q_OBJECT
+public:
+    tst_qdeclarativecontext() {}
+
+private slots:
+    void baseUrl();
+    void resolvedUrl();
+    void engineMethod();
+    void parentContext();
+    void setContextProperty();
+    void setContextObject();
+    void destruction();
+    void idAsContextProperty();
+    void readOnlyContexts();
+
+private:
+    QDeclarativeEngine engine;
+};
+
+void tst_qdeclarativecontext::baseUrl()
+{
+    QDeclarativeContext ctxt(&engine);
+
+    QCOMPARE(ctxt.baseUrl(), QUrl());
+
+    ctxt.setBaseUrl(QUrl("http://www.nokia.com/"));
+
+    QCOMPARE(ctxt.baseUrl(), QUrl("http://www.nokia.com/"));
+}
+
+void tst_qdeclarativecontext::resolvedUrl()
+{
+    // Relative to the component
+    {
+        QDeclarativeContext ctxt(&engine);
+        ctxt.setBaseUrl(QUrl("http://www.nokia.com/"));
+
+        QCOMPARE(ctxt.resolvedUrl(QUrl("main.qml")), QUrl("http://www.nokia.com/main.qml"));
+    }
+
+    // Relative to a parent
+    {
+        QDeclarativeContext ctxt(&engine);
+        ctxt.setBaseUrl(QUrl("http://www.nokia.com/"));
+
+        QDeclarativeContext ctxt2(&ctxt);
+        QCOMPARE(ctxt2.resolvedUrl(QUrl("main2.qml")), QUrl("http://www.nokia.com/main2.qml"));
+    }
+
+    // Relative to the engine
+    {
+        QDeclarativeContext ctxt(&engine);
+        QCOMPARE(ctxt.resolvedUrl(QUrl("main.qml")), engine.baseUrl().resolved(QUrl("main.qml")));
+    }
+
+    // Relative to a deleted parent
+    {
+        QDeclarativeContext *ctxt = new QDeclarativeContext(&engine);
+        ctxt->setBaseUrl(QUrl("http://www.nokia.com/"));
+
+        QDeclarativeContext ctxt2(ctxt);
+        QCOMPARE(ctxt2.resolvedUrl(QUrl("main2.qml")), QUrl("http://www.nokia.com/main2.qml"));
+
+        delete ctxt; ctxt = 0;
+
+        QCOMPARE(ctxt2.resolvedUrl(QUrl("main2.qml")), QUrl());
+    }
+
+    // Absolute
+    {
+        QDeclarativeContext ctxt(&engine);
+
+        QCOMPARE(ctxt.resolvedUrl(QUrl("http://www.nokia.com/main2.qml")), QUrl("http://www.nokia.com/main2.qml"));
+        QCOMPARE(ctxt.resolvedUrl(QUrl("file:///main2.qml")), QUrl("file:///main2.qml"));
+    }
+}
+
+void tst_qdeclarativecontext::engineMethod()
+{
+    QDeclarativeEngine *engine = new QDeclarativeEngine;
+
+    QDeclarativeContext ctxt(engine);
+    QDeclarativeContext ctxt2(&ctxt);
+    QDeclarativeContext ctxt3(&ctxt2);
+    QDeclarativeContext ctxt4(&ctxt2);
+
+    QCOMPARE(ctxt.engine(), engine);
+    QCOMPARE(ctxt2.engine(), engine);
+    QCOMPARE(ctxt3.engine(), engine);
+    QCOMPARE(ctxt4.engine(), engine);
+
+    delete engine; engine = 0;
+
+    QCOMPARE(ctxt.engine(), engine);
+    QCOMPARE(ctxt2.engine(), engine);
+    QCOMPARE(ctxt3.engine(), engine);
+    QCOMPARE(ctxt4.engine(), engine);
+}
+
+void tst_qdeclarativecontext::parentContext()
+{
+    QDeclarativeEngine *engine = new QDeclarativeEngine;
+
+    QCOMPARE(engine->rootContext()->parentContext(), (QDeclarativeContext *)0);
+
+    QDeclarativeContext *ctxt = new QDeclarativeContext(engine);
+    QDeclarativeContext *ctxt2 = new QDeclarativeContext(ctxt);
+    QDeclarativeContext *ctxt3 = new QDeclarativeContext(ctxt2);
+    QDeclarativeContext *ctxt4 = new QDeclarativeContext(ctxt2);
+    QDeclarativeContext *ctxt5 = new QDeclarativeContext(ctxt);
+    QDeclarativeContext *ctxt6 = new QDeclarativeContext(engine);
+    QDeclarativeContext *ctxt7 = new QDeclarativeContext(engine->rootContext());
+
+    QCOMPARE(ctxt->parentContext(), engine->rootContext());
+    QCOMPARE(ctxt2->parentContext(), ctxt);
+    QCOMPARE(ctxt3->parentContext(), ctxt2);
+    QCOMPARE(ctxt4->parentContext(), ctxt2);
+    QCOMPARE(ctxt5->parentContext(), ctxt);
+    QCOMPARE(ctxt6->parentContext(), engine->rootContext());
+    QCOMPARE(ctxt7->parentContext(), engine->rootContext());
+
+    delete ctxt2; ctxt2 = 0;
+
+    QCOMPARE(ctxt->parentContext(), engine->rootContext());
+    QCOMPARE(ctxt3->parentContext(), (QDeclarativeContext *)0);
+    QCOMPARE(ctxt4->parentContext(), (QDeclarativeContext *)0);
+    QCOMPARE(ctxt5->parentContext(), ctxt);
+    QCOMPARE(ctxt6->parentContext(), engine->rootContext());
+    QCOMPARE(ctxt7->parentContext(), engine->rootContext());
+
+    delete engine; engine = 0;
+
+    QCOMPARE(ctxt->parentContext(), (QDeclarativeContext *)0);
+    QCOMPARE(ctxt3->parentContext(), (QDeclarativeContext *)0);
+    QCOMPARE(ctxt4->parentContext(), (QDeclarativeContext *)0);
+    QCOMPARE(ctxt5->parentContext(), (QDeclarativeContext *)0);
+    QCOMPARE(ctxt6->parentContext(), (QDeclarativeContext *)0);
+    QCOMPARE(ctxt7->parentContext(), (QDeclarativeContext *)0);
+
+    delete ctxt7;
+    delete ctxt6;
+    delete ctxt5;
+    delete ctxt4;
+    delete ctxt3;
+    delete ctxt;
+}
+
+class TestObject : public QObject
+{
+    Q_OBJECT
+    Q_PROPERTY(int a READ a NOTIFY aChanged)
+    Q_PROPERTY(int b READ b NOTIFY bChanged)
+    Q_PROPERTY(int c READ c NOTIFY cChanged)
+
+public:
+    TestObject() : _a(10), _b(10), _c(10) {}
+
+    int a() const { return _a; }
+    void setA(int a) { _a = a; emit aChanged(); }
+
+    int b() const { return _b; }
+    void setB(int b) { _b = b; emit bChanged(); }
+
+    int c() const { return _c; }
+    void setC(int c) { _c = c; emit cChanged(); }
+
+signals:
+    void aChanged();
+    void bChanged();
+    void cChanged();
+
+private:
+    int _a;
+    int _b;
+    int _c;
+};
+
+#define TEST_CONTEXT_PROPERTY(ctxt, name, value) \
+{ \
+    QDeclarativeComponent component(&engine); \
+    component.setData("import Qt 4.7; QtObject { property variant test: " #name " }", QUrl()); \
+\
+    QObject *obj = component.create(ctxt); \
+\
+    QCOMPARE(obj->property("test"), value); \
+\
+    delete obj; \
+} 
+
+void tst_qdeclarativecontext::setContextProperty()
+{
+    QDeclarativeContext ctxt(&engine);
+    QDeclarativeContext ctxt2(&ctxt);
+
+    TestObject obj1;
+    obj1.setA(3345);
+    TestObject obj2;
+    obj2.setA(-19);
+
+    // Static context properties
+    ctxt.setContextProperty("a", QVariant(10));
+    ctxt.setContextProperty("b", QVariant(9));
+    ctxt2.setContextProperty("d", &obj2);
+    ctxt2.setContextProperty("b", QVariant(19));
+    ctxt2.setContextProperty("c", QVariant(QString("Hello World!")));
+    ctxt.setContextProperty("d", &obj1);
+    ctxt.setContextProperty("e", &obj1);
+
+    TEST_CONTEXT_PROPERTY(&ctxt2, a, QVariant(10));
+    TEST_CONTEXT_PROPERTY(&ctxt2, b, QVariant(19));
+    TEST_CONTEXT_PROPERTY(&ctxt2, c, QVariant(QString("Hello World!")));
+    TEST_CONTEXT_PROPERTY(&ctxt2, d.a, QVariant(-19));
+    TEST_CONTEXT_PROPERTY(&ctxt2, e.a, QVariant(3345));
+
+    ctxt.setContextProperty("a", QVariant(13));
+    ctxt.setContextProperty("b", QVariant(4));
+    ctxt2.setContextProperty("b", QVariant(8));
+    ctxt2.setContextProperty("c", QVariant(QString("Hi World!")));
+    ctxt2.setContextProperty("d", &obj1);
+    obj1.setA(12);
+
+    TEST_CONTEXT_PROPERTY(&ctxt2, a, QVariant(13));
+    TEST_CONTEXT_PROPERTY(&ctxt2, b, QVariant(8));
+    TEST_CONTEXT_PROPERTY(&ctxt2, c, QVariant(QString("Hi World!")));
+    TEST_CONTEXT_PROPERTY(&ctxt2, d.a, QVariant(12));
+    TEST_CONTEXT_PROPERTY(&ctxt2, e.a, QVariant(12));
+
+    // Changes in context properties
+    {
+        QDeclarativeComponent component(&engine); 
+        component.setData("import Qt 4.7; QtObject { property variant test: a }", QUrl());
+
+        QObject *obj = component.create(&ctxt2); 
+
+        QCOMPARE(obj->property("test"), QVariant(13)); 
+        ctxt.setContextProperty("a", QVariant(19));
+        QCOMPARE(obj->property("test"), QVariant(19)); 
+
+        delete obj; 
+    }
+    {
+        QDeclarativeComponent component(&engine); 
+        component.setData("import Qt 4.7; QtObject { property variant test: b }", QUrl());
+
+        QObject *obj = component.create(&ctxt2); 
+
+        QCOMPARE(obj->property("test"), QVariant(8)); 
+        ctxt.setContextProperty("b", QVariant(5));
+        QCOMPARE(obj->property("test"), QVariant(8)); 
+        ctxt2.setContextProperty("b", QVariant(1912));
+        QCOMPARE(obj->property("test"), QVariant(1912)); 
+
+        delete obj; 
+    }
+    {
+        QDeclarativeComponent component(&engine); 
+        component.setData("import Qt 4.7; QtObject { property variant test: e.a }", QUrl());
+
+        QObject *obj = component.create(&ctxt2); 
+
+        QCOMPARE(obj->property("test"), QVariant(12)); 
+        obj1.setA(13);
+        QCOMPARE(obj->property("test"), QVariant(13)); 
+
+        delete obj; 
+    }
+
+    // New context properties
+    {
+        QDeclarativeComponent component(&engine); 
+        component.setData("import Qt 4.7; QtObject { property variant test: a }", QUrl());
+
+        QObject *obj = component.create(&ctxt2); 
+
+        QCOMPARE(obj->property("test"), QVariant(19)); 
+        ctxt2.setContextProperty("a", QVariant(1945));
+        QCOMPARE(obj->property("test"), QVariant(1945)); 
+
+        delete obj; 
+    }
+
+    // Setting an object-variant context property
+    {
+        QDeclarativeComponent component(&engine);
+        component.setData("import Qt 4.7; QtObject { id: root; property int a: 10; property int test: ctxtProp.a; property variant obj: root; }", QUrl());
+
+        QDeclarativeContext ctxt(engine.rootContext());
+        ctxt.setContextProperty("ctxtProp", QVariant());
+
+        QTest::ignoreMessage(QtWarningMsg, "<Unknown File>:1: TypeError: Result of expression 'ctxtProp' [undefined] is not an object.");
+        QObject *obj = component.create(&ctxt);
+
+        QVariant v = obj->property("obj");
+
+        ctxt.setContextProperty("ctxtProp", v);
+
+        QCOMPARE(obj->property("test"), QVariant(10));
+
+        delete obj;
+    }
+}
+
+void tst_qdeclarativecontext::setContextObject()
+{
+    QDeclarativeContext ctxt(&engine);
+
+    TestObject to;
+
+    to.setA(2);
+    to.setB(192);
+    to.setC(18);
+
+    ctxt.setContextObject(&to);
+    ctxt.setContextProperty("c", QVariant(9));
+
+    // Static context properties
+    TEST_CONTEXT_PROPERTY(&ctxt, a, QVariant(2));
+    TEST_CONTEXT_PROPERTY(&ctxt, b, QVariant(192));
+    TEST_CONTEXT_PROPERTY(&ctxt, c, QVariant(9));
+
+    to.setA(12);
+    to.setB(100);
+    to.setC(7);
+    ctxt.setContextProperty("c", QVariant(3));
+
+    TEST_CONTEXT_PROPERTY(&ctxt, a, QVariant(12));
+    TEST_CONTEXT_PROPERTY(&ctxt, b, QVariant(100));
+    TEST_CONTEXT_PROPERTY(&ctxt, c, QVariant(3));
+
+    // Changes in context properties
+    {
+        QDeclarativeComponent component(&engine); 
+        component.setData("import Qt 4.7; QtObject { property variant test: a }", QUrl());
+
+        QObject *obj = component.create(&ctxt); 
+
+        QCOMPARE(obj->property("test"), QVariant(12)); 
+        to.setA(14);
+        QCOMPARE(obj->property("test"), QVariant(14)); 
+
+        delete obj; 
+    }
+}
+
+void tst_qdeclarativecontext::destruction()
+{
+    QDeclarativeContext *ctxt = new QDeclarativeContext(&engine);
+
+    QObject obj;
+    QDeclarativeEngine::setContextForObject(&obj, ctxt);
+    QDeclarativeExpression expr(ctxt, 0, "a");
+
+    QCOMPARE(ctxt, QDeclarativeEngine::contextForObject(&obj));
+    QCOMPARE(ctxt, expr.context());
+
+    delete ctxt; ctxt = 0;
+
+    QCOMPARE(ctxt, QDeclarativeEngine::contextForObject(&obj));
+    QCOMPARE(ctxt, expr.context());
+}
+
+void tst_qdeclarativecontext::idAsContextProperty()
+{
+    QDeclarativeComponent component(&engine);
+    component.setData("import Qt 4.7; QtObject { property variant a; a: QtObject { id: myObject } }", QUrl());
+
+    QObject *obj = component.create();
+    QVERIFY(obj);
+
+    QVariant a = obj->property("a");
+    QVERIFY(a.userType() == QMetaType::QObjectStar);
+
+    QVariant ctxt = qmlContext(obj)->contextProperty("myObject");
+    QVERIFY(ctxt.userType() == QMetaType::QObjectStar);
+
+    QVERIFY(a == ctxt);
+
+    delete obj;
+}
+
+// Internal contexts should be read-only
+void tst_qdeclarativecontext::readOnlyContexts()
+{
+    QDeclarativeComponent component(&engine);
+    component.setData("import Qt 4.7; QtObject { id: me }", QUrl());
+
+    QObject *obj = component.create();
+    QVERIFY(obj);
+
+    QDeclarativeContext *context = qmlContext(obj);
+    QVERIFY(context);
+
+    QVERIFY(qvariant_cast<QObject*>(context->contextProperty("me")) == obj);
+    QVERIFY(context->contextObject() == obj);
+
+    QTest::ignoreMessage(QtWarningMsg, "QDeclarativeContext: Cannot set property on internal context.");
+    context->setContextProperty("hello", 12);
+    QVERIFY(context->contextProperty("hello") == QVariant());
+
+    QTest::ignoreMessage(QtWarningMsg, "QDeclarativeContext: Cannot set property on internal context.");
+    context->setContextProperty("hello", obj);
+    QVERIFY(context->contextProperty("hello") == QVariant());
+
+    QTest::ignoreMessage(QtWarningMsg, "QDeclarativeContext: Cannot set context object for internal context.");
+    context->setContextObject(0);
+    QVERIFY(context->contextObject() == obj);
+
+    delete obj;
+}
+
+QTEST_MAIN(tst_qdeclarativecontext)
+
+#include "tst_qdeclarativecontext.moc"