QDeclarativeIncubator::clear() and autotests

Change-Id: I2a14c01c7f9412459572e9960cb95a4c24e068aa
Task-number: QTBUG-21151
Reviewed-on: http://codereview.qt-project.org/5911
Reviewed-by: Aaron Kennedy <aaron.kennedy@nokia.com>

8 files changed, 401 insertions, 1 deletions

diff --git a/tests/auto/declarative/qdeclarativeecmascript/tst_qdeclarativeecmascript.cpp b/tests/auto/declarative/qdeclarativeecmascript/tst_qdeclarativeecmascript.cpp
index 9200e0f5f2..c66005435b 100644
--- a/tests/auto/declarative/qdeclarativeecmascript/tst_qdeclarativeecmascript.cpp
+++ b/tests/auto/declarative/qdeclarativeecmascript/tst_qdeclarativeecmascript.cpp
@@ -389,7 +389,7 @@ void tst_qdeclarativeecmascript::methods()
 void tst_qdeclarativeecmascript::bindingLoop()
 {
     QDeclarativeComponent component(&engine, TEST_FILE("bindingLoop.qml"));
-    QString warning = component.url().toString() + ":9:9: QML MyQmlObject: Binding loop detected for property \"stringProperty\"";
+    QString warning = component.url().toString() + ":5:9: QML MyQmlObject: Binding loop detected for property \"stringProperty\"";
     QTest::ignoreMessage(QtWarningMsg, warning.toLatin1().constData());
     QObject *object = component.create();
     QVERIFY(object != 0);
diff --git a/tests/auto/declarative/qdeclarativeincubator/data/clear.qml b/tests/auto/declarative/qdeclarativeincubator/data/clear.qml
new file mode 100644
index 0000000000..f00f975923
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativeincubator/data/clear.qml
@@ -0,0 +1,8 @@
+import QtQuick 2.0
+import Qt.test 1.0
+
+Item {
+    SelfRegistering {
+        value: 11
+    }
+}
diff --git a/tests/auto/declarative/qdeclarativeincubator/data/objectDeleted.errors.txt b/tests/auto/declarative/qdeclarativeincubator/data/objectDeleted.errors.txt
new file mode 100644
index 0000000000..eeda289d35
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativeincubator/data/objectDeleted.errors.txt
@@ -0,0 +1 @@
+-1:-1:Object destroyed during incubation
diff --git a/tests/auto/declarative/qdeclarativeincubator/data/objectDeleted.qml b/tests/auto/declarative/qdeclarativeincubator/data/objectDeleted.qml
new file mode 100644
index 0000000000..f00f975923
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativeincubator/data/objectDeleted.qml
@@ -0,0 +1,8 @@
+import QtQuick 2.0
+import Qt.test 1.0
+
+Item {
+    SelfRegistering {
+        value: 11
+    }
+}
diff --git a/tests/auto/declarative/qdeclarativeincubator/qdeclarativeincubator.pro b/tests/auto/declarative/qdeclarativeincubator/qdeclarativeincubator.pro
new file mode 100644
index 0000000000..35776a6889
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativeincubator/qdeclarativeincubator.pro
@@ -0,0 +1,13 @@
+load(qttest_p4)
+contains(QT_CONFIG,declarative): QT += declarative network widgets
+macx:CONFIG -= app_bundle
+
+SOURCES += tst_qdeclarativeincubator.cpp \
+           testtypes.cpp
+HEADERS += testtypes.h
+
+DEFINES += SRCDIR=\\\"$$PWD\\\"
+
+CONFIG += parallel_test
+
+QT += core-private gui-private v8-private declarative-private
diff --git a/tests/auto/declarative/qdeclarativeincubator/testtypes.cpp b/tests/auto/declarative/qdeclarativeincubator/testtypes.cpp
new file mode 100644
index 0000000000..c1f07acb76
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativeincubator/testtypes.cpp
@@ -0,0 +1,64 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include "testtypes.h"
+#include <QtDeclarative/qdeclarative.h>
+
+SelfRegisteringType *SelfRegisteringType::m_me = 0;
+SelfRegisteringType::SelfRegisteringType()
+: m_v(0)
+{
+    m_me = this;
+}
+
+SelfRegisteringType *SelfRegisteringType::me()
+{
+    return m_me;
+}
+
+void SelfRegisteringType::clearMe()
+{
+    m_me = 0;
+}
+
+void registerTypes()
+{
+    qmlRegisterType<SelfRegisteringType>("Qt.test", 1,0, "SelfRegistering");
+}
diff --git a/tests/auto/declarative/qdeclarativeincubator/testtypes.h b/tests/auto/declarative/qdeclarativeincubator/testtypes.h
new file mode 100644
index 0000000000..a023410d1a
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativeincubator/testtypes.h
@@ -0,0 +1,67 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#ifndef TESTTYPES_H
+#define TESTTYPES_H
+
+#include <QtCore/qobject.h>
+
+class SelfRegisteringType : public QObject
+{
+Q_OBJECT
+Q_PROPERTY(int value READ value WRITE setValue);
+public:
+    SelfRegisteringType();
+
+    int value() const { return m_v; }
+    void setValue(int v) { m_v = v; }
+
+    static SelfRegisteringType *me();
+    static void clearMe();
+
+private:
+    static SelfRegisteringType *m_me;
+
+    int m_v;
+};
+
+void registerTypes();
+
+#endif // TESTTYPES_H
diff --git a/tests/auto/declarative/qdeclarativeincubator/tst_qdeclarativeincubator.cpp b/tests/auto/declarative/qdeclarativeincubator/tst_qdeclarativeincubator.cpp
new file mode 100644
index 0000000000..25e6c6ef52
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativeincubator/tst_qdeclarativeincubator.cpp
@@ -0,0 +1,239 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include "testtypes.h"
+
+#include <QUrl>
+#include <QDir>
+#include <QDebug>
+#include <qtest.h>
+#include <QPointer>
+#include <QFileInfo>
+#include <QDeclarativeEngine>
+#include <QDeclarativeComponent>
+#include <QDeclarativeIncubator>
+
+inline QUrl TEST_FILE(const QString &filename)
+{
+    QFileInfo fileInfo(__FILE__);
+    return QUrl::fromLocalFile(fileInfo.absoluteDir().filePath("data/" + filename));
+}
+
+inline QUrl TEST_FILE(const char *filename)
+{
+    return TEST_FILE(QLatin1String(filename));
+}
+
+class tst_qdeclarativeincubator : public QObject
+{
+    Q_OBJECT
+public:
+    tst_qdeclarativeincubator() {}
+
+private slots:
+    void initTestCase();
+
+    void incubationMode();
+    void objectDeleted();
+    void clear();
+
+private:
+    QDeclarativeIncubationController controller;
+    QDeclarativeEngine engine;
+};
+
+#define VERIFY_ERRORS(component, errorfile) \
+    if (!errorfile) { \
+        if (qgetenv("DEBUG") != "" && !component.errors().isEmpty()) \
+            qWarning() << "Unexpected Errors:" << component.errors(); \
+        QVERIFY(!component.isError()); \
+        QVERIFY(component.errors().isEmpty()); \
+    } else { \
+        QFile file(QLatin1String(SRCDIR) + QLatin1String("/data/") + QLatin1String(errorfile)); \
+        QVERIFY(file.open(QIODevice::ReadOnly | QIODevice::Text)); \
+        QByteArray data = file.readAll(); \
+        file.close(); \
+        QList<QByteArray> expected = data.split('\n'); \
+        expected.removeAll(QByteArray("")); \
+        QList<QDeclarativeError> errors = component.errors(); \
+        QList<QByteArray> actual; \
+        for (int ii = 0; ii < errors.count(); ++ii) { \
+            const QDeclarativeError &error = errors.at(ii); \
+            QByteArray errorStr = QByteArray::number(error.line()) + ":" +  \
+                                  QByteArray::number(error.column()) + ":" + \
+                                  error.description().toUtf8(); \
+            actual << errorStr; \
+        } \
+        if (qgetenv("DEBUG") != "" && expected != actual) \
+            qWarning() << "Expected:" << expected << "Actual:" << actual;  \
+        QCOMPARE(expected, actual); \
+    }
+
+void tst_qdeclarativeincubator::initTestCase()
+{
+    registerTypes();
+    engine.setIncubationController(&controller);
+}
+
+void tst_qdeclarativeincubator::incubationMode()
+{
+    {
+    QDeclarativeIncubator incubator;
+    QCOMPARE(incubator.incubationMode(), QDeclarativeIncubator::Asynchronous);
+    }
+    {
+    QDeclarativeIncubator incubator(QDeclarativeIncubator::Asynchronous);
+    QCOMPARE(incubator.incubationMode(), QDeclarativeIncubator::Asynchronous);
+    }
+    {
+    QDeclarativeIncubator incubator(QDeclarativeIncubator::Synchronous);
+    QCOMPARE(incubator.incubationMode(), QDeclarativeIncubator::Synchronous);
+    }
+    {
+    QDeclarativeIncubator incubator(QDeclarativeIncubator::AsynchronousIfNested);
+    QCOMPARE(incubator.incubationMode(), QDeclarativeIncubator::AsynchronousIfNested);
+    }
+}
+
+void tst_qdeclarativeincubator::objectDeleted()
+{
+    SelfRegisteringType::clearMe();
+
+    QDeclarativeComponent component(&engine, TEST_FILE("objectDeleted.qml"));
+    QVERIFY(component.isReady());
+
+    QDeclarativeIncubator incubator;
+    component.create(incubator);
+
+    QCOMPARE(incubator.status(), QDeclarativeIncubator::Loading);
+    QVERIFY(SelfRegisteringType::me() == 0);
+
+    while (SelfRegisteringType::me() == 0 && incubator.isLoading()) {
+        bool b = false;
+        controller.incubateWhile(&b);
+    }
+
+    QVERIFY(SelfRegisteringType::me() != 0);
+    QVERIFY(incubator.isLoading());
+
+    delete SelfRegisteringType::me();
+
+    {
+    bool b = true;
+    controller.incubateWhile(&b);
+    }
+
+    QVERIFY(incubator.isError());
+    VERIFY_ERRORS(incubator, "objectDeleted.errors.txt");
+    QVERIFY(incubator.object() == 0);
+}
+
+void tst_qdeclarativeincubator::clear()
+{
+    SelfRegisteringType::clearMe();
+
+    QDeclarativeComponent component(&engine, TEST_FILE("clear.qml"));
+    QVERIFY(component.isReady());
+
+    // Clear in null state
+    {
+    QDeclarativeIncubator incubator;
+    QVERIFY(incubator.isNull());
+    incubator.clear(); // no effect
+    QVERIFY(incubator.isNull());
+    }
+
+    // Clear in loading state
+    {
+    QDeclarativeIncubator incubator;
+    component.create(incubator);
+    QVERIFY(incubator.isLoading());
+    incubator.clear();
+    QVERIFY(incubator.isNull());
+    }
+
+    // Clear mid load
+    {
+    QDeclarativeIncubator incubator;
+    component.create(incubator);
+
+    while (SelfRegisteringType::me() == 0 && incubator.isLoading()) {
+        bool b = false;
+        controller.incubateWhile(&b);
+    }
+
+    QVERIFY(incubator.isLoading());
+    QVERIFY(SelfRegisteringType::me() != 0);
+    QPointer<SelfRegisteringType> srt = SelfRegisteringType::me();
+
+    incubator.clear();
+    QVERIFY(incubator.isNull());
+    QVERIFY(srt.isNull());
+    }
+
+    // Clear in ready state
+    {
+    QDeclarativeIncubator incubator;
+    component.create(incubator);
+
+    {
+        bool b = true;
+        controller.incubateWhile(&b);
+    }
+
+    QVERIFY(incubator.isReady());
+    QVERIFY(incubator.object() != 0);
+    QPointer<QObject> obj = incubator.object();
+
+    incubator.clear();
+    QVERIFY(incubator.isNull());
+    QVERIFY(incubator.object() == 0);
+    QVERIFY(!obj.isNull());
+
+    delete obj;
+    QVERIFY(obj.isNull());
+    }
+
+    // XXX Clear in error state
+}
+
+QTEST_MAIN(tst_qdeclarativeincubator)
+
+#include "tst_qdeclarativeincubator.moc"