Merge remote-tracking branch 'origin/tqtc/lts-5.15.13' into tqtc/lts-5.15-opensourcev5.15.13-lts-lgpl5.15

Change-Id: Ie9df84af22570d601db002e391a1a0d97e7cd9e1

12 files changed, 159 insertions, 4 deletions

diff --git a/tests/auto/corelib/io/qbuffer/tst_qbuffer.cpp b/tests/auto/corelib/io/qbuffer/tst_qbuffer.cpp
index 6f37f85230..b02400e349 100644
--- a/tests/auto/corelib/io/qbuffer/tst_qbuffer.cpp
+++ b/tests/auto/corelib/io/qbuffer/tst_qbuffer.cpp
@@ -36,6 +36,7 @@ class tst_QBuffer : public QObject
     Q_OBJECT
 private slots:
     void open();
+    void openWriteOnlyDoesNotTruncate();
     void getSetCheck();
     void readBlock();
     void readBlockPastEnd();
@@ -131,6 +132,29 @@ void tst_QBuffer::open()
     b.close();
 }
 
+void tst_QBuffer::openWriteOnlyDoesNotTruncate()
+{
+    QBuffer b;
+    const auto data = QByteArrayLiteral("Hey, presto!");
+
+    {
+        QVERIFY(b.open(QIODevice::WriteOnly));
+        b.write(data);
+        b.close();
+    }
+    {
+        QVERIFY(b.open(QIODevice::ReadOnly));
+        QCOMPARE(b.readAll(), data);
+        b.close();
+    }
+    {
+        QVERIFY(b.open(QIODevice::WriteOnly));
+        QCOMPARE(b.size(), data.size());
+        QCOMPARE(b.pos(), 0);
+        b.close();
+    }
+}
+
 // some status() tests, too
 void tst_QBuffer::readBlock()
 {
diff --git a/tests/auto/corelib/serialization/qxmlstream/tst_qxmlstream.cpp b/tests/auto/corelib/serialization/qxmlstream/tst_qxmlstream.cpp
index 533fcd96f5..a2349a5846 100644
--- a/tests/auto/corelib/serialization/qxmlstream/tst_qxmlstream.cpp
+++ b/tests/auto/corelib/serialization/qxmlstream/tst_qxmlstream.cpp
@@ -1748,10 +1748,11 @@ static bool isValidSingleTextChar(const ushort c)
 
 void tst_QXmlStream::readBack() const
 {
+    QBuffer buffer;
+
     for (ushort c = 0; c < std::numeric_limits<ushort>::max(); ++c) {
-        QBuffer buffer;
 
-        QVERIFY(buffer.open(QIODevice::WriteOnly));
+        QVERIFY(buffer.open(QIODevice::WriteOnly|QIODevice::Truncate));
         QXmlStreamWriter writer(&buffer);
         writer.writeStartDocument();
         writer.writeTextElement("a", QString(QChar(c)));
diff --git a/tests/auto/corelib/text/qlocale/tst_qlocale.cpp b/tests/auto/corelib/text/qlocale/tst_qlocale.cpp
index 4ee6c6df75..6bd9e5c25a 100644
--- a/tests/auto/corelib/text/qlocale/tst_qlocale.cpp
+++ b/tests/auto/corelib/text/qlocale/tst_qlocale.cpp
@@ -2108,8 +2108,7 @@ void tst_QLocale::windowsDefaultLocale()
     QCOMPARE(locale.toString(QDate(1974, 12, 1), QLocale::NarrowFormat),
              locale.toString(QDate(1974, 12, 1), QLocale::ShortFormat));
     QCOMPARE(locale.toString(QDate(1974, 12, 1), QLocale::LongFormat), QString("1@12@1974"));
-    const QString expectedFormattedShortTimeSeconds = QStringLiteral("1^2^3");
-    const QString expectedFormattedShortTime = QStringLiteral("1^2");
+    const QString expectedFormattedShortTime = QStringLiteral("1^2^3");
     QCOMPARE(locale.toString(QTime(1,2,3), QLocale::ShortFormat), expectedFormattedShortTime);
     QCOMPARE(locale.toString(QTime(1,2,3), QLocale::NarrowFormat),
              locale.toString(QTime(1,2,3), QLocale::ShortFormat));
diff --git a/tests/auto/corelib/text/qstring/tst_qstring.cpp b/tests/auto/corelib/text/qstring/tst_qstring.cpp
index 878988d425..90f7f63192 100644
--- a/tests/auto/corelib/text/qstring/tst_qstring.cpp
+++ b/tests/auto/corelib/text/qstring/tst_qstring.cpp
@@ -4876,6 +4876,9 @@ void tst_QString::arg()
     QCOMPARE( s4.arg("foo", 10), QLatin1String("[       foo]") );
     QCOMPARE( s4.arg("foo", -10), QLatin1String("[foo       ]") );
 
+    // QStringRef argument in multi-arg:
+    QCOMPARE(QString("%1;%2").arg(QStringRef(), QString()), ";");
+
     QString firstName( "James" );
     QString lastName( "Bond" );
     QString fullName = QString( "My name is %2, %1 %2" )
diff --git a/tests/auto/corelib/time/qtimezone/tst_qtimezone.cpp b/tests/auto/corelib/time/qtimezone/tst_qtimezone.cpp
index 412f092377..59b94179f4 100644
--- a/tests/auto/corelib/time/qtimezone/tst_qtimezone.cpp
+++ b/tests/auto/corelib/time/qtimezone/tst_qtimezone.cpp
@@ -65,6 +65,7 @@ private slots:
     void isValidId_data();
     void isValidId();
     void malformed();
+    void serialize();
     // Backend tests
     void utcTest();
     void icuTest();
@@ -951,6 +952,33 @@ void tst_QTimeZone::malformed()
         barf.offsetFromUtc(now);
 }
 
+void tst_QTimeZone::serialize()
+{
+    int parts = 0;
+#ifndef QT_NO_DEBUG_STREAM
+    qDebug() << QTimeZone(); // to verify no crash
+    parts++;
+#endif
+#ifndef QT_NO_DATASTREAM
+    QByteArray blob;
+    {
+        QDataStream stream(&blob, QIODevice::WriteOnly);
+        stream << QTimeZone("Europe/Oslo") << QTimeZone(420) << QTimeZone() << qint64(-1);
+    }
+    QDataStream stream(&blob, QIODevice::ReadOnly);
+    QTimeZone invalid, offset, oslo;
+    qint64 minusone;
+    stream >> oslo >> offset >> invalid >> minusone;
+    QCOMPARE(oslo, QTimeZone("Europe/Oslo"));
+    QCOMPARE(offset, QTimeZone(420));
+    QVERIFY(!invalid.isValid());
+    QCOMPARE(minusone, qint64(-1));
+    parts++;
+#endif
+    if (!parts)
+        QSKIP("No serialization enabled");
+}
+
 void tst_QTimeZone::utcTest()
 {
 #ifdef QT_BUILD_INTERNAL
diff --git a/tests/auto/corelib/tools/qvarlengtharray/tst_qvarlengtharray.cpp b/tests/auto/corelib/tools/qvarlengtharray/tst_qvarlengtharray.cpp
index 0174885cf3..d2f032ddcd 100644
--- a/tests/auto/corelib/tools/qvarlengtharray/tst_qvarlengtharray.cpp
+++ b/tests/auto/corelib/tools/qvarlengtharray/tst_qvarlengtharray.cpp
@@ -412,6 +412,12 @@ struct MyBase
     bool hasMoved() const { return !wasConstructedAt(this); }
 
 protected:
+    void swap(MyBase &other) {
+        using std::swap;
+        swap(data, other.data);
+        swap(isCopy, other.isCopy);
+    }
+
     MyBase(const MyBase *data, bool isCopy)
             : data(data), isCopy(isCopy) {}
 
@@ -486,6 +492,14 @@ struct MyMovable
         return *this;
     }
 
+    void swap(MyMovable &other) noexcept
+    {
+        MyBase::swap(other);
+        std::swap(i, other.i);
+    }
+
+    friend void swap(MyMovable &lhs, MyMovable &rhs) noexcept { lhs.swap(rhs); }
+
     bool operator==(const MyMovable &other) const
     {
         return i == other.i;
@@ -501,6 +515,15 @@ struct MyComplex
     {
         return i == other.i;
     }
+
+    void swap(MyComplex &other) noexcept
+    {
+        MyBase::swap(other);
+        std::swap(i, other.i);
+    }
+
+    friend void swap(MyComplex &lhs, MyComplex &rhs) noexcept { lhs.swap(rhs); }
+
     char i;
 };
 
@@ -1066,6 +1089,17 @@ void tst_QVarLengthArray::insertMove()
     QCOMPARE(MyBase::copyCount, 0);
 
     {
+        MyMovable m1, m2;
+        QCOMPARE(MyBase::liveCount, 2);
+        QCOMPARE(MyBase::copyCount, 0);
+        using std::swap;
+        swap(m1, m2);
+        QCOMPARE(MyBase::liveCount, 2);
+        QCOMPARE(MyBase::movedCount, 0);
+        QCOMPARE(MyBase::copyCount, 0);
+    }
+
+    {
         QVarLengthArray<MyMovable, 6> vec;
         MyMovable m1;
         MyMovable m2;
diff --git a/tests/auto/gui/math3d/qquaternion/tst_qquaternion.cpp b/tests/auto/gui/math3d/qquaternion/tst_qquaternion.cpp
index 7dbd587451..ed7a6a4d5d 100644
--- a/tests/auto/gui/math3d/qquaternion/tst_qquaternion.cpp
+++ b/tests/auto/gui/math3d/qquaternion/tst_qquaternion.cpp
@@ -1113,6 +1113,35 @@ void tst_QQuaternion::fromEulerAngles_data()
 
     QTest::newRow("complex")
         << 30.0f << 240.0f << -45.0f << QQuaternion(-0.531976f, -0.43968f, 0.723317f, -0.02226f);
+
+    // Three gimbal_lock cases are not unique for the conversions from quaternion
+    // to euler, Qt will use only XY rotations for these cases.
+    // For example, QQuaternion(0.5f, 0.5f, -0.5f, 0.5f) can be EulerXYZ(90.0f, 0.0f, 90.0f), too.
+    // But Qt will always convert it to EulerXYZ(90.0f, -90.0f, 0.0f) without Z-rotation.
+    QTest::newRow("gimbal_lock_1")
+            << 90.0f << -90.0f << 0.0f << QQuaternion(0.5f, 0.5f, -0.5f, 0.5f);
+
+    QTest::newRow("gimbal_lock_2")
+            << 90.0f << 40.0f << 0.0f << QQuaternion(0.664463f, 0.664463f, 0.241845f, -0.241845f);
+
+    QTest::newRow("gimbal_lock_3") << 90.0f << 170.0f << 0.0f
+                                   << QQuaternion(0.0616285f, 0.0616285f, 0.704416f, -0.704416f);
+
+    // These four examples have a fraction of errors that would bypass normalize() threshold
+    // and could make Gimbal lock detection fail.
+    QTest::newRow("gimbal_lock_fraction_1")
+            << -90.0f << 90.001152f << 0.0f << QQuaternion(0.499989986f, -0.5f, 0.5f, 0.5f);
+
+    QTest::newRow("gimbal_lock_fraction_2")
+            << -90.0f << -179.999985f << 0.0f
+            << QQuaternion(1.00000001e-07f, 1.00000001e-10f, -0.707106769f, -0.707105756f);
+
+    QTest::newRow("gimbal_lock_fraction_3")
+            << -90.0f << 90.0011597f << 0.0f << QQuaternion(0.499989986f, -0.49999994f, 0.5f, 0.5f);
+
+    QTest::newRow("gimbal_lock_fraction_4")
+            << -90.0f << -180.0f << 0.0f
+            << QQuaternion(9.99999996e-12f, 9.99999996e-12f, -0.707106769f, -0.707096756f);
 }
 void tst_QQuaternion::fromEulerAngles()
 {
diff --git a/tests/auto/other/android/testdata/top_level_dir/file_in_top_dir.txt b/tests/auto/other/android/testdata/top_level_dir/file_in_top_dir.txt
new file mode 100644
index 0000000000..87b10bd8e6
--- /dev/null
+++ b/tests/auto/other/android/testdata/top_level_dir/file_in_top_dir.txt
@@ -0,0 +1 @@
+FooBar
diff --git a/tests/auto/other/android/testdata/top_level_dir/sub_dir/file_in_sub_dir.txt b/tests/auto/other/android/testdata/top_level_dir/sub_dir/file_in_sub_dir.txt
new file mode 100644
index 0000000000..87b10bd8e6
--- /dev/null
+++ b/tests/auto/other/android/testdata/top_level_dir/sub_dir/file_in_sub_dir.txt
@@ -0,0 +1 @@
+FooBar
diff --git a/tests/auto/other/android/testdata/top_level_dir/sub_dir/sub_dir2/sub_dir3/file_in_sub_dir_3.txt b/tests/auto/other/android/testdata/top_level_dir/sub_dir/sub_dir2/sub_dir3/file_in_sub_dir_3.txt
new file mode 100644
index 0000000000..87b10bd8e6
--- /dev/null
+++ b/tests/auto/other/android/testdata/top_level_dir/sub_dir/sub_dir2/sub_dir3/file_in_sub_dir_3.txt
@@ -0,0 +1 @@
+FooBar
diff --git a/tests/auto/other/android/tst_android.cpp b/tests/auto/other/android/tst_android.cpp
index 57d592d45f..389d465427 100644
--- a/tests/auto/other/android/tst_android.cpp
+++ b/tests/auto/other/android/tst_android.cpp
@@ -27,6 +27,7 @@
 ****************************************************************************/
 
 #include <QtTest/QtTest>
+#include <QtCore/qdiriterator.h>
 
 class tst_Android : public QObject
 {
@@ -34,6 +35,7 @@ Q_OBJECT
 private slots:
     void assetsRead();
     void assetsNotWritable();
+    void assetsIterating();
 };
 
 void tst_Android::assetsRead()
@@ -59,6 +61,25 @@ void tst_Android::assetsNotWritable()
     QVERIFY(!file.open(QIODevice::Append));
 }
 
+void tst_Android::assetsIterating()
+{
+    QStringList assets = {"assets:/top_level_dir/file_in_top_dir.txt",
+                          "assets:/top_level_dir/sub_dir",
+                          "assets:/top_level_dir/sub_dir/file_in_sub_dir.txt",
+                          "assets:/top_level_dir/sub_dir/sub_dir_2",
+                          "assets:/top_level_dir/sub_dir/sub_dir_2/sub_dir_3",
+                          "assets:/top_level_dir/sub_dir/sub_dir_2/sub_dir_3/file_in_sub_dir_3.txt"};
+    // Note that we have an "assets:/top_level_dir/sub_dir/empty_sub_dir" in the test's
+    // assets physical directory, but empty folders are not packaged in the built apk,
+    // so it's expected to not have such folder be listed in the assets on runtime
+    QDirIterator it("assets:/top_level_dir", QDirIterator::Subdirectories);
+    QStringList iteratorAssets;
+    while (it.hasNext())
+        iteratorAssets.append(it.next());
+    QVERIFY(assets == iteratorAssets);
+}
+
+
 QTEST_MAIN(tst_Android)
 #include "tst_android.moc"
 
diff --git a/tests/auto/other/gestures/BLACKLIST b/tests/auto/other/gestures/BLACKLIST
index 0e35fb374b..04574f90d3 100644
--- a/tests/auto/other/gestures/BLACKLIST
+++ b/tests/auto/other/gestures/BLACKLIST
@@ -9,29 +9,42 @@ opensuse-leap
 # QTBUG-67254
 opensuse-42.3
 [graphicsItemGesture]
+# QTBUG-103054
+ubuntu-20
 ubuntu-18.04
 rhel-7.4
 rhel-7.6
 sles-15
 rhel-8.4
 [graphicsItemTreeGesture]
+# QTBUG-103054
+ubuntu-20
 ubuntu-18.04
 [graphicsView]
+# QTBUG-103054
+ubuntu-20
 ubuntu-18.04
 rhel-7.4
 rhel-7.6
 sles-15
 rhel-8.4
 [explicitGraphicsObjectTarget]
+# QTBUG-103054
+ubuntu-20
 ubuntu-18.04
 rhel-7.4
 rhel-7.6
 sles-15
 rhel-8.4
 [autoCancelGestures2]
+# QTBUG-103054
+ubuntu-20
 ubuntu-18.04
 rhel-7.4
 rhel-7.6
 sles-15
 rhel-8.4
 
+#QTBUG-103054
+[testReuseCanceledGestures]
+ubuntu-20