Merge remote-tracking branch 'origin/5.15' into dev

 Conflicts:
	tests/auto/qml/qqmltypeloader/tst_qqmltypeloader.cpp

Change-Id: I1c0c7c44053bf3d5f8f9723662bd0fe67253c8ae

16 files changed, 407 insertions, 3 deletions

diff --git a/tests/auto/qml/qqmlproperty/tst_qqmlproperty.cpp b/tests/auto/qml/qqmlproperty/tst_qqmlproperty.cpp
index 51267f1662..f039ccc110 100644
--- a/tests/auto/qml/qqmlproperty/tst_qqmlproperty.cpp
+++ b/tests/auto/qml/qqmlproperty/tst_qqmlproperty.cpp
@@ -41,6 +41,7 @@
 #include <QtCore/private/qobject_p.h>
 #include "../../shared/util.h"
 #include "qobject.h"
+#include <QtQml/QQmlPropertyMap>
 
 #include <QDebug>
 class MyQmlObject : public QObject
@@ -157,6 +158,8 @@ private slots:
     void copy();
 
     void bindingToAlias();
+
+    void nestedQQmlPropertyMap();
 private:
     QQmlEngine engine;
 };
@@ -2218,6 +2221,24 @@ void tst_qqmlproperty::bindingToAlias()
     QVERIFY(!o.isNull());
 }
 
+void tst_qqmlproperty::nestedQQmlPropertyMap()
+{
+    QQmlPropertyMap mainPropertyMap;
+    QQmlPropertyMap nestedPropertyMap;
+    QQmlPropertyMap deeplyNestedPropertyMap;
+
+    mainPropertyMap.insert("nesting1", QVariant::fromValue(&nestedPropertyMap));
+    nestedPropertyMap.insert("value", 42);
+    nestedPropertyMap.insert("nesting2", QVariant::fromValue(&deeplyNestedPropertyMap));
+    deeplyNestedPropertyMap.insert("value", "success");
+
+    QQmlProperty value{&mainPropertyMap, "nesting1.value"};
+    QCOMPARE(value.read().toInt(), 42);
+
+    QQmlProperty success{&mainPropertyMap, "nesting1.nesting2.value"};
+    QCOMPARE(success.read().toString(), QLatin1String("success"));
+}
+
 QTEST_MAIN(tst_qqmlproperty)
 
 #include "tst_qqmlproperty.moc"
diff --git a/tests/auto/qml/qqmltypeloader/data/declarativeCppType.qml b/tests/auto/qml/qqmltypeloader/data/declarativeCppType.qml
new file mode 100644
index 0000000000..9061f3beb5
--- /dev/null
+++ b/tests/auto/qml/qqmltypeloader/data/declarativeCppType.qml
@@ -0,0 +1,6 @@
+import QtQml 2.0
+import declarative.import.for.typeloader.test 3.2
+
+DeclarativeTestType {
+    objectName: "ddddd"
+}
diff --git a/tests/auto/qml/qqmltypeloader/declarativetesttype.h b/tests/auto/qml/qqmltypeloader/declarativetesttype.h
new file mode 100644
index 0000000000..a21cdcfd1d
--- /dev/null
+++ b/tests/auto/qml/qqmltypeloader/declarativetesttype.h
@@ -0,0 +1,44 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef DECLARATIVETESTTYPE_H
+#define DECLARATIVETESTTYPE_H
+
+#include <QObject>
+#include <qqml.h>
+
+class DeclarativeTestType : public QObject
+{
+    Q_OBJECT
+    QML_ELEMENT
+
+public:
+    explicit DeclarativeTestType(QObject *parent = nullptr) : QObject(parent) {}
+};
+
+#endif // DECLARATIVETESTTYPE_H
diff --git a/tests/auto/qml/qqmltypeloader/tst_qqmltypeloader.cpp b/tests/auto/qml/qqmltypeloader/tst_qqmltypeloader.cpp
index 07f67c7843..d529600723 100644
--- a/tests/auto/qml/qqmltypeloader/tst_qqmltypeloader.cpp
+++ b/tests/auto/qml/qqmltypeloader/tst_qqmltypeloader.cpp
@@ -61,7 +61,7 @@ private slots:
     void qrcRootPathUrl();
     void implicitImport();
     void compositeSingletonCycle();
-
+    void declarativeCppType();
 private:
     void checkSingleton(const QString & dataDirectory);
 };
@@ -100,6 +100,8 @@ void tst_QQMLTypeLoader::trimCache()
 {
     QQmlEngine engine;
     QQmlTypeLoader &loader = QQmlEnginePrivate::get(&engine)->typeLoader;
+    QVector<QQmlTypeData *> releaseLater;
+    QVector<QV4::ExecutableCompilationUnit *> releaseCompilationUnitLater;
     for (int i = 0; i < 256; ++i) {
         QUrl url = testFileUrl("trim_cache.qml");
         url.setQuery(QString::number(i));
@@ -112,8 +114,10 @@ void tst_QQMLTypeLoader::trimCache()
         // QQmlTypeData or its compiledData() should prevent the trimming.
         if (i % 10 == 0) {
             // keep ref on data, don't add ref on data->compiledData()
+            releaseLater.append(data);
         } else if (i % 5 == 0) {
             data->compilationUnit()->addref();
+            releaseCompilationUnitLater.append(data->compilationUnit());
             data->release();
         } else {
             data->release();
@@ -129,6 +133,12 @@ void tst_QQMLTypeLoader::trimCache()
             QVERIFY(!loader.isTypeLoaded(url));
         // The cache is free to keep the others.
     }
+
+    for (auto *data : qAsConst(releaseCompilationUnitLater))
+        data->release();
+
+    for (auto *data : qAsConst(releaseLater))
+        data->release();
 }
 
 void tst_QQMLTypeLoader::trimCache2()
@@ -557,6 +567,15 @@ void tst_QQMLTypeLoader::compositeSingletonCycle()
     QCOMPARE(qvariant_cast<QColor>(object->property("color")), QColorConstants::Black);
 }
 
+void tst_QQMLTypeLoader::declarativeCppType()
+{
+    QQmlEngine engine;
+    QQmlComponent component(&engine, testFileUrl("declarativeCppType.qml"));
+    QCOMPARE(component.status(), QQmlComponent::Ready);
+    QScopedPointer<QObject> obj(component.create());
+    QVERIFY(!obj.isNull());
+}
+
 QTEST_MAIN(tst_QQMLTypeLoader)
 
 #include "tst_qqmltypeloader.moc"
diff --git a/tests/auto/qml/qqmltypeloader/tst_qqmltypeloader.pro b/tests/auto/qml/qqmltypeloader/tst_qqmltypeloader.pro
index 743f7cf3ac..ddd44f8f83 100644
--- a/tests/auto/qml/qqmltypeloader/tst_qqmltypeloader.pro
+++ b/tests/auto/qml/qqmltypeloader/tst_qqmltypeloader.pro
@@ -1,4 +1,4 @@
-CONFIG += testcase
+CONFIG += testcase qmltypes
 TARGET = tst_qqmltypeloader
 QT += qml testlib qml-private quick
 macx:CONFIG -= app_bundle
@@ -8,7 +8,11 @@ SOURCES += \
     ../../shared/testhttpserver.cpp
 
 HEADERS += \
-    ../../shared/testhttpserver.h
+    ../../shared/testhttpserver.h \
+    declarativetesttype.h
+
+IMPORT_VERSION = 3.2
+QML_IMPORT_NAME = "declarative.import.for.typeloader.test"
 
 include (../../shared/util.pri)
 
diff --git a/tests/auto/quick/qquickanimatedsprite/tst_qquickanimatedsprite.cpp b/tests/auto/quick/qquickanimatedsprite/tst_qquickanimatedsprite.cpp
index d2bbf9e6b1..b5366e2bb9 100644
--- a/tests/auto/quick/qquickanimatedsprite/tst_qquickanimatedsprite.cpp
+++ b/tests/auto/quick/qquickanimatedsprite/tst_qquickanimatedsprite.cpp
@@ -49,6 +49,7 @@ private slots:
     void initTestCase();
     void test_properties();
     void test_runningChangedSignal();
+    void test_startStop();
     void test_frameChangedSignal();
     void test_largeAnimation_data();
     void test_largeAnimation();
@@ -118,6 +119,42 @@ void tst_qquickanimatedsprite::test_runningChangedSignal()
     QCOMPARE(finishedSpy.count(), 1);
 }
 
+void tst_qquickanimatedsprite::test_startStop()
+{
+    QScopedPointer<QQuickView> window(new QQuickView);
+
+    window->setSource(testFileUrl("runningChange.qml"));
+    window->show();
+    QVERIFY(QTest::qWaitForWindowExposed(window.data()));
+
+    QVERIFY(window->rootObject());
+    QQuickAnimatedSprite* sprite = window->rootObject()->findChild<QQuickAnimatedSprite*>("sprite");
+    QVERIFY(sprite);
+
+    QVERIFY(!sprite->running());
+
+    QSignalSpy runningChangedSpy(sprite, SIGNAL(runningChanged(bool)));
+    QSignalSpy finishedSpy(sprite, SIGNAL(finished()));
+    QVERIFY(finishedSpy.isValid());
+
+    sprite->start();
+    QVERIFY(sprite->running());
+    QTRY_COMPARE(runningChangedSpy.count(), 1);
+    QCOMPARE(finishedSpy.count(), 0);
+    sprite->stop();
+    QVERIFY(!sprite->running());
+    QTRY_COMPARE(runningChangedSpy.count(), 2);
+    QCOMPARE(finishedSpy.count(), 0);
+
+    sprite->setCurrentFrame(2);
+    sprite->start();
+    QVERIFY(sprite->running());
+    QCOMPARE(sprite->currentFrame(), 0);
+    QTRY_VERIFY(sprite->currentFrame() > 0);
+    sprite->stop();
+    QVERIFY(!sprite->running());
+}
+
 template <typename T>
 static bool isWithinRange(T min, T value, T max)
 {
diff --git a/tests/auto/quick/qquickdrag/tst_qquickdrag.cpp b/tests/auto/quick/qquickdrag/tst_qquickdrag.cpp
index ee43e5e06a..f1288c2dbe 100644
--- a/tests/auto/quick/qquickdrag/tst_qquickdrag.cpp
+++ b/tests/auto/quick/qquickdrag/tst_qquickdrag.cpp
@@ -143,6 +143,7 @@ private slots:
     void source();
     void recursion_data();
     void recursion();
+    void noCrashWithImageProvider();
 
 private:
     QQmlEngine engine;
@@ -1279,6 +1280,30 @@ void tst_QQuickDrag::recursion()
     }
 }
 
+void tst_QQuickDrag::noCrashWithImageProvider()
+{
+    // QTBUG-72045
+    QQmlComponent component(&engine);
+    component.setData(
+    R"(
+    import QtQuick 2.9
+    Item {
+        Rectangle {
+            id: item
+            width: 50
+            height: 50
+            anchors.centerIn: parent
+            color: "orange"
+            Component.onCompleted: {
+                item.Drag.imageSource = "image://kill/me"
+            }
+        }
+    })", QUrl());
+    QScopedPointer<QObject> object(component.create());
+    QQuickItem *item = qobject_cast<QQuickItem *>(object.data());
+    QVERIFY(item);
+}
+
 
 QTEST_MAIN(tst_QQuickDrag)
 
diff --git a/tests/auto/quick/qquickitem/data/setParentInWindowChange.qml b/tests/auto/quick/qquickitem/data/setParentInWindowChange.qml
new file mode 100644
index 0000000000..d68b7adb72
--- /dev/null
+++ b/tests/auto/quick/qquickitem/data/setParentInWindowChange.qml
@@ -0,0 +1,12 @@
+import QtQuick 2.12
+
+Rectangle {
+    width: 800
+    height: 600
+    Item {
+        id: it
+        onWindowChanged: () => it.parent = newParent
+    }
+
+    Item { id: newParent }
+}
diff --git a/tests/auto/quick/qquickitem/tst_qquickitem.cpp b/tests/auto/quick/qquickitem/tst_qquickitem.cpp
index b6e40d5117..8aab13e095 100644
--- a/tests/auto/quick/qquickitem/tst_qquickitem.cpp
+++ b/tests/auto/quick/qquickitem/tst_qquickitem.cpp
@@ -197,6 +197,8 @@ private slots:
     void qtBug60123();
 #endif
 
+    void setParentCalledInOnWindowChanged();
+
 private:
 
     enum PaintOrderOp {
@@ -2146,6 +2148,12 @@ void tst_qquickitem::qtBug60123()
     activateWindowAndTestPress(&window);
 }
 #endif
+void tst_qquickitem::setParentCalledInOnWindowChanged()
+{
+    QQuickView view;
+    view.setSource(testFileUrl("setParentInWindowChange.qml"));
+    QVERIFY(ensureFocus(&view)); // should not crash
+}
 
 QTEST_MAIN(tst_qquickitem)
 
diff --git a/tests/auto/quick/qquicklayouts/data/tst_gridlayout.qml b/tests/auto/quick/qquicklayouts/data/tst_gridlayout.qml
index 49838c4fd5..e8b3960486 100644
--- a/tests/auto/quick/qquicklayouts/data/tst_gridlayout.qml
+++ b/tests/auto/quick/qquicklayouts/data/tst_gridlayout.qml
@@ -1019,5 +1019,59 @@ Item {
             waitForRendering(layout);
             verify(layout.children[1].visible == false);
         }
+
+
+
+        Component {
+            id: gridlayout_propertyChanges_Component
+            GridLayout {
+                columns: 1
+                property alias spy : signalSpy
+                SignalSpy {
+                    id: signalSpy
+                    target: parent
+                }
+            }
+        }
+
+        Component {
+            id: rowlayout_propertyChanges_Component
+            RowLayout {
+                property alias spy : signalSpy
+                SignalSpy {
+                    id: signalSpy
+                    target: parent
+                }
+            }
+        }
+
+        function test_propertyChanges_data()
+        {
+            let data = [
+                { tag: "columnSpacing", value: 9 },
+                { tag: "rowSpacing", value: 9 },
+                { tag: "columns", value: 2 },
+                { tag: "rows", value: 2 },
+                { tag: "flow", value: GridLayout.TopToBottom},
+                { tag: "layoutDirection", value: Qt.RightToLeft },
+                { tag: "spacing", value: 9 }
+            ]
+            return data
+        }
+
+        function test_propertyChanges(data)
+        {
+            var propName = data.tag
+            var layout = createTemporaryObject(propName === "spacing"
+                                               ? rowlayout_propertyChanges_Component
+                                               : gridlayout_propertyChanges_Component
+                                               , container)
+
+            layout.spy.signalName = propName + "Changed"
+            verify(layout.spy.valid)
+
+            layout[propName] = data.value
+            compare(layout.spy.count, 1)
+        }
     }
 }
diff --git a/tests/auto/quick/qquickloader/data/CacheClearTest.qml b/tests/auto/quick/qquickloader/data/CacheClearTest.qml
new file mode 100644
index 0000000000..acab79f96e
--- /dev/null
+++ b/tests/auto/quick/qquickloader/data/CacheClearTest.qml
@@ -0,0 +1,4 @@
+import QtQml 2.12
+QtObject {
+    property int i: 42
+}
diff --git a/tests/auto/quick/qquickloader/data/initialPropertyValues.11.qml b/tests/auto/quick/qquickloader/data/initialPropertyValues.11.qml
new file mode 100644
index 0000000000..ddc874d14c
--- /dev/null
+++ b/tests/auto/quick/qquickloader/data/initialPropertyValues.11.qml
@@ -0,0 +1,20 @@
+import QtQuick 2.0
+
+Item {
+    id: root
+    property int oldi: 0
+    property int i: 0
+
+    Loader {
+         id: loader
+         objectName: "loader"
+         active: true
+    }
+
+    Component.onCompleted: {
+         loader.setSource("CacheClearTest.qml", {i: 12})
+         root.oldi = loader.item.i
+         loader.setSource("CacheClearTest.qml")
+         root.i = loader.item.i // should be 42
+    }
+}
diff --git a/tests/auto/quick/qquickloader/tst_qquickloader.cpp b/tests/auto/quick/qquickloader/tst_qquickloader.cpp
index da923d4d41..e05b7ae9ce 100644
--- a/tests/auto/quick/qquickloader/tst_qquickloader.cpp
+++ b/tests/auto/quick/qquickloader/tst_qquickloader.cpp
@@ -691,6 +691,11 @@ void tst_QQuickLoader::initialPropertyValues_data()
             << (QStringList() << QString(testFileUrl("RequiredPropertyValuesComponent.qml").toString() +  QLatin1String(":6:5: Required property s was not initialized")))
             << (QStringList() << "i" << "s")
             << (QVariantList() << 0 << QLatin1String(""));
+
+    QTest::newRow("source url changed, previously initial properties are discared") << testFileUrl("initialPropertyValues.11.qml")
+                                                                                    << QStringList()
+                                                                                    << (QStringList() << "oldi" << "i")
+                                                                                    << (QVariantList() << 12 << 42);
 }
 
 void tst_QQuickLoader::initialPropertyValues()
diff --git a/tests/auto/quick/qquicktext/data/lineLayout.qml b/tests/auto/quick/qquicktext/data/lineLayout.qml
index cb2474791e..5a980de7da 100644
--- a/tests/auto/quick/qquicktext/data/lineLayout.qml
+++ b/tests/auto/quick/qquicktext/data/lineLayout.qml
@@ -14,6 +14,9 @@ Rectangle {
         textFormat: Text.StyledText
         focus: true
 
+        property int lastLineNumber: -1
+        property bool receivedMultipleLastLines
+
         text: "<b>Lorem ipsum</b> dolor sit amet, consectetur adipiscing elit. Integer at ante dui. Sed eu egestas est.
         <br/><p><i>Maecenas nec libero leo. Sed ac leo eget ipsum ultricies viverra sit amet eu orci. Praesent et tortor risus, viverra accumsan sapien. Sed faucibus eleifend lectus, sed euismod urna porta eu. Aenean ultricies lectus ut orci dictum quis convallis nisi ultrices. Nunc elit mi, iaculis a porttitor rutrum, venenatis malesuada nisi. Suspendisse turpis quam, euismod non imperdiet et, rutrum nec ligula. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Etiam semper tristique metus eu sodales. Integer eget risus ipsum. Quisque ut risus ut nulla tristique volutpat at sit amet nisl. Aliquam pulvinar auctor diam nec bibendum.</i><br/><p>Quisque luctus sapien id arcu volutpat pharetra. Praesent pretium imperdiet euismod. Integer fringilla rhoncus condimentum. Quisque sit amet ornare nulla. Cras sapien augue, sagittis a dictum id, suscipit et nunc. Cras vitae augue in enim elementum venenatis sed nec risus. Sed nisi quam, mollis quis auctor ac, vestibulum in neque. Vivamus eu justo risus. Suspendisse vel mollis est. Vestibulum gravida interdum mi, in molestie neque gravida in. Donec nibh odio, mattis facilisis vulputate et, scelerisque ut felis. Sed ornare eros nec odio aliquam eu varius augue adipiscing. Vivamus sit amet massa dapibus sapien pulvinar consectetur a sit amet felis. Cras non mi id libero dictum iaculis id dignissim eros. Praesent eget enim dui, sed bibendum neque. Ut interdum nisl id leo malesuada ornare. Pellentesque id nisl eu odio volutpat posuere et at massa. Pellentesque nec lorem justo. Integer sem urna, pharetra sed sagittis vitae, condimentum ac felis. Ut vitae sapien ac tortor adipiscing pharetra. Cras tristique urna tempus ante volutpat eleifend non eu ligula. Mauris sodales nisl et lorem tristique sodales. Mauris arcu orci, vehicula semper cursus ac, dapibus ut mi."
 
@@ -30,6 +33,12 @@ Rectangle {
                 line.x = line.width * 2 + 60
                 line.height = 20
             }
+
+            // Save last line number, it is important to do this after setting the width
+            if (line.isLast) {
+                receivedMultipleLastLines = (lastLineNumber !== -1) && (lastLineNumber !== line.number)
+                lastLineNumber = line.number
+            }
         }
     }
 }
diff --git a/tests/auto/quick/qquicktext/data/lineLayoutImplicitWidth.qml b/tests/auto/quick/qquicktext/data/lineLayoutImplicitWidth.qml
new file mode 100644
index 0000000000..de5ca616b8
--- /dev/null
+++ b/tests/auto/quick/qquicktext/data/lineLayoutImplicitWidth.qml
@@ -0,0 +1,80 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 Jolla Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.0
+
+Rectangle {
+    id: main
+    width: 800; height: 600
+
+    property real off: 0
+
+    Text {
+        id: myText
+        objectName: "myText"
+        wrapMode: Text.WordWrap
+        font.pixelSize: 14
+        textFormat: Text.PlainText
+        focus: true
+        anchors.fill: parent
+
+        // The autotest will retrieve these so that it can verify them
+        property var lineImplicitWidths: []
+
+        text: "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam quis ante tristique, fermentum magna at, varius lacus. Donec elementum orci sit amet ligula efficitur, eget sodales orci porttitor. Etiam laoreet tellus quis nisi mollis lacinia. Cras vitae nisl sed nunc semper blandit. Duis egestas commodo lacus non congue. Fusce quis rhoncus urna. And magna arcu, sodales vitae nunc vel, rutrum hendrerit magna. Nullam imperdiet porttitor sem at euismod. Morbi faucibus libero sit amet vestibulum aliquam. Duis consectetur lacinia malesuada. Sed quis ante dui. Name dignissim faucibus felis. Quisque dapibus aliquam ante, eu cursus elit dictum in. Mauris placerat efficitur rutrum."
+
+        onLineLaidOut: {
+            var n = line.number
+
+            // Save information about the line so the autotest can retrieve it
+            lineImplicitWidths[n] = line.implicitWidth
+        }
+    }
+}
diff --git a/tests/auto/quick/qquicktext/tst_qquicktext.cpp b/tests/auto/quick/qquicktext/tst_qquicktext.cpp
index e62db81d27..06ce730091 100644
--- a/tests/auto/quick/qquicktext/tst_qquicktext.cpp
+++ b/tests/auto/quick/qquicktext/tst_qquicktext.cpp
@@ -30,6 +30,7 @@
 #include <QTextDocument>
 #include <QtQml/qqmlengine.h>
 #include <QtQml/qqmlcomponent.h>
+#include <QtQml/qjsvalue.h>
 #include <QtQuick/private/qquicktext_p.h>
 #include <QtQuick/private/qquickmousearea_p.h>
 #include <QtQuickTest/QtQuickTest>
@@ -119,6 +120,7 @@ private slots:
     void lineLaidOut();
     void lineLaidOutRelayout();
     void lineLaidOutHAlign();
+    void lineLaidOutImplicitWidth();
 
     void imgTagsBaseUrl_data();
     void imgTagsBaseUrl();
@@ -2871,6 +2873,13 @@ void tst_qquicktext::lineLaidOut()
             QCOMPARE(r.height(), qreal(20));
         }
     }
+
+    // Ensure that isLast was correctly emitted
+    int lastLineNumber = myText->property("lastLineNumber").toInt();
+    QCOMPARE(lastLineNumber, myText->lineCount() - 1);
+    // Ensure that only one line was considered last (after changing its width)
+    bool receivedMultipleLastLines = myText->property("receivedMultipleLastLines").toBool();
+    QVERIFY(!receivedMultipleLastLines);
 }
 
 void tst_qquicktext::lineLaidOutRelayout()
@@ -2975,6 +2984,53 @@ void tst_qquicktext::imgTagsBaseUrl_data()
             << 181.;
 }
 
+void tst_qquicktext::lineLaidOutImplicitWidth()
+{
+    QScopedPointer<QQuickView> window(createView(testFile("lineLayoutImplicitWidth.qml")));
+
+    QQuickText *myText = window->rootObject()->findChild<QQuickText*>("myText");
+    QVERIFY(myText != nullptr);
+
+    QQuickTextPrivate *textPrivate = QQuickTextPrivate::get(myText);
+    QVERIFY(textPrivate != nullptr);
+
+    // Retrieve the saved implicitWidth values of each rendered line
+    QVariant widthsProperty = myText->property("lineImplicitWidths");
+    QVERIFY(!widthsProperty.isNull());
+    QVERIFY(widthsProperty.isValid());
+    QVERIFY(widthsProperty.canConvert<QJSValue>());
+    QJSValue widthsValue = widthsProperty.value<QJSValue>();
+    QVERIFY(widthsValue.isArray());
+    int lineCount = widthsValue.property("length").toInt();
+    QVERIFY(lineCount > 0);
+
+    // Create the same text layout by hand
+    // Note that this approach needs additional processing for styled text,
+    // so we only use it for plain text here.
+    QTextLayout layout;
+    layout.setCacheEnabled(true);
+    layout.setText(myText->text());
+    layout.setTextOption(textPrivate->layout.textOption());
+    layout.setFont(myText->font());
+    layout.beginLayout();
+    for (QTextLine line = layout.createLine(); line.isValid(); line = layout.createLine()) {
+        line.setLineWidth(myText->width());
+    }
+    layout.endLayout();
+
+    // Line count of the just created layout should match the rendered text
+    QCOMPARE(lineCount, layout.lineCount());
+
+    // Go through each line and verify that the values emitted by lineLaidOut are correct
+    for (int i = 0; i < layout.lineCount(); ++i) {
+        qreal implicitWidth = widthsValue.property(i).toNumber();
+        QVERIFY(implicitWidth > 0);
+
+        QTextLine line = layout.lineAt(i);
+        QCOMPARE(implicitWidth, line.naturalTextWidth());
+    }
+}
+
 static QUrl substituteTestServerUrl(const QUrl &serverUrl, const QUrl &testUrl)
 {
     QUrl result = testUrl;