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diff --git a/tests/auto/qml/qqmlexpression/tst_qqmlexpression.cpp b/tests/auto/qml/qqmlexpression/tst_qqmlexpression.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** 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 <qtest.h>
+#include <QtQml/qqmlengine.h>
+#include <QtQml/qqmlcomponent.h>
+#include <QtQml/qqmlexpression.h>
+#include <QtQml/qqmlscriptstring.h>
+#include "../../shared/util.h"
+
+class tst_qqmlexpression : public QQmlDataTest
+{
+    Q_OBJECT
+public:
+    tst_qqmlexpression() {}
+
+private slots:
+    void scriptString();
+    void syntaxError();
+};
+
+class TestObject : public QObject
+{
+    Q_OBJECT
+    Q_PROPERTY(QQmlScriptString scriptString READ scriptString WRITE setScriptString)
+    Q_PROPERTY(QQmlScriptString scriptStringError READ scriptStringError WRITE setScriptStringError)
+public:
+    TestObject(QObject *parent = 0) : QObject(parent) {}
+
+    QQmlScriptString scriptString() const { return m_scriptString; }
+    void setScriptString(QQmlScriptString scriptString) { m_scriptString = scriptString; }
+
+    QQmlScriptString scriptStringError() const { return m_scriptStringError; }
+    void setScriptStringError(QQmlScriptString scriptString) { m_scriptStringError = scriptString; }
+
+private:
+    QQmlScriptString m_scriptString;
+    QQmlScriptString m_scriptStringError;
+};
+
+QML_DECLARE_TYPE(TestObject)
+
+void tst_qqmlexpression::scriptString()
+{
+    qmlRegisterType<TestObject>("Test", 1, 0, "TestObject");
+
+    QQmlEngine engine;
+    QQmlComponent c(&engine, testFileUrl("scriptString.qml"));
+    TestObject *testObj = qobject_cast<TestObject*>(c.create());
+    QVERIFY(testObj != 0);
+
+    QQmlScriptString script = testObj->scriptString();
+    QCOMPARE(script.script(), QLatin1String("value1 + value2"));
+
+    QQmlExpression expression(script);
+    QVariant value = expression.evaluate();
+    QCOMPARE(value.toInt(), 15);
+
+    QQmlScriptString scriptError = testObj->scriptStringError();
+    QCOMPARE(scriptError.script(), QLatin1String("value3 * 5"));
+
+    //verify that the expression has the correct error location information
+    QQmlExpression expressionError(scriptError);
+    QVariant valueError = expressionError.evaluate();
+    QVERIFY(!valueError.isValid());
+    QVERIFY(expressionError.hasError());
+    QQmlError error = expressionError.error();
+    QCOMPARE(error.url(), c.url());
+    QCOMPARE(error.line(), 8);
+}
+
+// QTBUG-21310 - crash test
+void tst_qqmlexpression::syntaxError()
+{
+    QQmlEngine engine;
+    QQmlExpression expression(engine.rootContext(), 0, "asd asd");
+    QVariant v = expression.evaluate();
+    QCOMPARE(v, QVariant());
+}
+
+QTEST_MAIN(tst_qqmlexpression)
+
+#include "tst_qqmlexpression.moc"