UnitTest.h 7.23 KB
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/*=====================================================================
 
 QGroundControl Open Source Ground Control Station
 
 (c) 2009 - 2014 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>
 
 This file is part of the QGROUNDCONTROL project
 
 QGROUNDCONTROL is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.
 
 QGROUNDCONTROL is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with QGROUNDCONTROL. If not, see <http://www.gnu.org/licenses/>.
 
 ======================================================================*/

/// @file
///     @brief Base class for all unit tests
///
///     @author Don Gagne <don@thegagnes.com>

#ifndef UNITTEST_H
#define UNITTEST_H
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#ifndef __mobile__
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#include <QObject>
#include <QtTest>
#include <QMessageBox>
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#include <QFileDialog>
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#define UT_REGISTER_TEST(className) static UnitTestWrapper<className> t(#className);

class QGCMessageBox;
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class QGCFileDialog;
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class UnitTest;

class UnitTest : public QObject
{
    Q_OBJECT

public:
    UnitTest(void);
    virtual ~UnitTest(void);
    
    /// @brief Called to run all the registered unit tests
    ///     @param singleTest Name of test to just run a single test
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    static int run(QString& singleTest);
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    /// @brief Sets up for an expected QGCMessageBox
    ///     @param response Response to take on message box
    void setExpectedMessageBox(QMessageBox::StandardButton response);
    
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    /// @brief Types for UnitTest::setExpectedFileDialog
    enum FileDialogType {
        getExistingDirectory,
        getOpenFileName,
        getOpenFileNames,
        getSaveFileName
    };
    
    /// @brief Sets up for an expected QGCFileDialog
    ///     @param type Type of expected file dialog
    ///     @param response Files to return from call. Multiple files only supported by getOpenFileNames
    void setExpectedFileDialog(enum FileDialogType type, QStringList response);
    
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    enum {
        expectFailNoFailure =           1 << 0, ///< not expecting any failures
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        expectFailNoDialog =            1 << 1, ///< expecting a failure due to no dialog displayed
        expectFailBadResponseButton =   1 << 2, ///< expecting a failure due to bad button response (QGCMessageBox only)
        expectFailWrongFileDialog =     1 << 3  ///< expecting one dialog type, got the wrong type (QGCFileDialog ony)
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    };
    
    /// @brief Check whether a message box was displayed and correctly responded to
    //          @param Expected failure response flags
    void checkExpectedMessageBox(int expectFailFlags = expectFailNoFailure);
    
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    /// @brief Check whether a message box was displayed and correctly responded to
    //          @param Expected failure response flags
    void checkExpectedFileDialog(int expectFailFlags = expectFailNoFailure);
    
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    /// @brief Adds a unit test to the list. Should only be called by UnitTestWrapper.
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    static void _addTest(QObject* test);
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protected slots:
    
    // These are all pure virtuals to force the derived class to implement each one and in turn
    // call the UnitTest private implementation.
    
    /// @brief Called before each test.
    ///         Make sure to call _init first in your derived class.
    virtual void init(void);
    
    /// @brief Called after each test.
    ///         Make sure to call _cleanup first in your derived class.
    virtual void cleanup(void);
    
protected:
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    bool _expectMissedFileDialog;   // true: expect a missed file dialog, used for internal testing
    bool _expectMissedMessageBox;   // true: expect a missed message box, used for internal testing
    
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private:
    // When the app is running in unit test mode the QGCMessageBox methods are re-routed here.
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    static QMessageBox::StandardButton _messageBox(QMessageBox::Icon icon,
                                                   const QString& title,
                                                   const QString& text,
                                                   QMessageBox::StandardButtons buttons,
                                                   QMessageBox::StandardButton defaultButton);
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    // This allows the private call to _messageBox
    friend class QGCMessageBox;
    
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    // When the app is running in unit test mode the QGCFileDialog methods are re-routed here.
    
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    static QString _getExistingDirectory(
        QWidget* parent,
        const QString& caption,
        const QString& dir,
        QFileDialog::Options options);
    
    static QString _getOpenFileName(
        QWidget* parent,
        const QString& caption,
        const QString& dir,
        const QString& filter,
        QFileDialog::Options options);
    
    static QStringList _getOpenFileNames(
        QWidget* parent,
        const QString& caption,
        const QString& dir,
        const QString& filter,
        QFileDialog::Options options);
    
    static QString _getSaveFileName(
        QWidget* parent,
        const QString& caption,
        const QString& dir,
        const QString& filter,
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        const QString& defaultSuffix,
        QFileDialog::Options options);

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    static QString _fileDialogResponseSingle(enum FileDialogType type);

    // This allows the private calls to the file dialog methods
    friend class QGCFileDialog;

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    void _unitTestCalled(void);
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	static QList<QObject*>& _testList(void);

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    // Catch QGCMessageBox calls
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    static bool                         _messageBoxRespondedTo;     ///< Message box was responded to
    static bool                         _badResponseButton;         ///< Attempt to repond to expected message box with button not being displayed
    static QMessageBox::StandardButton  _messageBoxResponseButton;  ///< Response to next message box
    static int                          _missedMessageBoxCount;     ///< Count of message box not checked with call to messageBoxWasDisplayed
    
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    // Catch QGCFileDialog calls
    static bool         _fileDialogRespondedTo;         ///< File dialog was responded to
    static bool         _fileDialogResponseSet;         ///< true: _fileDialogResponse was set by a call to UnitTest::setExpectedFileDialog
    static QStringList  _fileDialogResponse;            ///< Response to next file dialog
    static enum FileDialogType _fileDialogExpectedType; ///< type of file dialog expected to show
    static int          _missedFileDialogCount;         ///< Count of file dialogs not checked with call to UnitTest::fileDialogWasDisplayed
    
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    bool _unitTestRun;              ///< true: Unit Test was run
    bool _initCalled;               ///< true: UnitTest::_init was called
    bool _cleanupCalled;            ///< true: UnitTest::_cleanup was called
};

template <class T>
class UnitTestWrapper {
public:
    UnitTestWrapper(const QString& name) :
        _unitTest(new T)
    {
        _unitTest->setObjectName(name);
        UnitTest::_addTest(_unitTest.data());
    }

private:
    QSharedPointer<T> _unitTest;
};

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#endif // Android
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#endif