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diff --git a/src/plugins/cpptools/cpptoolstestcase.cpp b/src/plugins/cpptools/cpptoolstestcase.cpp
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+++ b/src/plugins/cpptools/cpptoolstestcase.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of Qt Creator.
+**
+** 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 Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+****************************************************************************/
+
+#include "cpptoolstestcase.h"
+
+#include <coreplugin/editormanager/editormanager.h>
+
+#include <cplusplus/CppDocument.h>
+#include <utils/fileutils.h>
+
+#include <QtTest>
+
+static bool snapshotContains(const CPlusPlus::Snapshot &snapshot, const QStringList &filePaths)
+{
+    foreach (const QString &filePath, filePaths) {
+        if (!snapshot.contains(filePath)) {
+            const QString warning = QLatin1String("Missing file in snapshot: ") + filePath;
+            QWARN(qPrintable(warning));
+            return false;
+        }
+    }
+    return true;
+}
+
+namespace CppTools {
+namespace Tests {
+
+TestDocument::TestDocument(const QByteArray &fileName, const QByteArray &source, char cursorMarker)
+    : m_fileName(fileName), m_source(source), m_cursorMarker(cursorMarker)
+{}
+
+QString TestDocument::filePath() const
+{
+    const QString fileNameAsString = QString::fromUtf8(m_fileName);
+    if (!QFileInfo(fileNameAsString).isAbsolute())
+        return QDir::tempPath() + QLatin1Char('/') + fileNameAsString;
+    return fileNameAsString;
+}
+
+bool TestDocument::writeToDisk() const
+{
+    return TestCase::writeFile(filePath(), m_source);
+}
+
+TestCase::TestCase(bool runGarbageCollector)
+    : m_modelManager(CppModelManagerInterface::instance())
+    , m_runGarbageCollector(runGarbageCollector)
+{
+    if (m_runGarbageCollector)
+        QVERIFY(garbageCollectGlobalSnapshot());
+}
+
+TestCase::~TestCase()
+{
+    QVERIFY(Core::EditorManager::closeEditors(m_editorsToClose, false));
+    QCoreApplication::processEvents();
+
+    if (m_runGarbageCollector)
+        QVERIFY(garbageCollectGlobalSnapshot());
+}
+
+CPlusPlus::Snapshot TestCase::globalSnapshot()
+{
+    return CppModelManagerInterface::instance()->snapshot();
+}
+
+bool TestCase::garbageCollectGlobalSnapshot()
+{
+    CppModelManagerInterface::instance()->GC();
+    return globalSnapshot().isEmpty();
+}
+
+bool TestCase::parseFiles(const QStringList &filePaths)
+{
+    CppModelManagerInterface::instance()->updateSourceFiles(filePaths).waitForFinished();
+    QCoreApplication::processEvents();
+    const CPlusPlus::Snapshot snapshot = globalSnapshot();
+    if (snapshot.isEmpty()) {
+        QWARN("After parsing: snapshot is empty.");
+        return false;
+    }
+    if (!snapshotContains(snapshot, filePaths)) {
+        QWARN("After parsing: snapshot does not contain all expected files.");
+        return false;
+    }
+    return true;
+}
+
+bool TestCase::parseFiles(const QString &filePath)
+{
+    return parseFiles(QStringList(filePath));
+}
+
+void TestCase::closeEditorAtEndOfTestCase(Core::IEditor *editor)
+{
+    if (editor && !m_editorsToClose.contains(editor))
+        m_editorsToClose.append(editor);
+}
+
+CPlusPlus::Document::Ptr TestCase::waitForFileInGlobalSnapshot(const QString &filePath)
+{
+    return waitForFilesInGlobalSnapshot(QStringList(filePath)).first();
+}
+
+QList<CPlusPlus::Document::Ptr> TestCase::waitForFilesInGlobalSnapshot(
+        const QStringList &filePaths)
+{
+    QList<CPlusPlus::Document::Ptr> result;
+    foreach (const QString &filePath, filePaths) {
+        forever {
+            if (CPlusPlus::Document::Ptr document = globalSnapshot().document(filePath)) {
+                result.append(document);
+                break;
+            }
+            QCoreApplication::processEvents();
+        }
+    }
+    return result;
+}
+
+bool TestCase::writeFile(const QString &filePath, const QByteArray &contents)
+{
+    Utils::FileSaver saver(filePath);
+    if (!saver.write(contents) || !saver.finalize()) {
+        const QString warning = QLatin1String("Failed to write file to disk: ") + filePath;
+        QWARN(qPrintable(warning));
+        return false;
+    }
+    return true;
+}
+
+} // namespace Tests
+} // namespace CppTools