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Thread: QTestlib - How to add own types

  1. 14th October 2010, 16:08 #1
    AlGaN
    AlGaN is offline Novice
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    Default QTestlib - How to add own types

    Hello,

    I need to add (unit) tests to my app and found the QTestlib API, integrating in Qt.

    After reading the tutorials I started to implement a first test with a simple type used in my app: Point2D:

    Qt Code: 
    1. #ifndef POINT2D
    2. #define POINT2D
    3.  
    4. #ifdef BUILD_GEOALG
    5. #define EXPORT_GEOALG Q_DECL_EXPORT
    6. #else
    7. #define EXPORT_GEOALG
    8. #endif
    9.  
    10. #include <iostream>
    11. #include <QPointF>
    12. #include "common.hpp"
    13. #include "Vec2D.hpp"
    14.  
    15. namespace GeoAlg
    16. {
    17. 	//! \class Point2D
    18. 	//!
    19. 	//! \brief
    20. 	//! Class representing a simple geometric point in 2D
    21.         // Scalar is a typedef for double
    22.  
    23.     class EXPORT_GEOALG Point2D
    24.     {
    25.  
    26.         friend EXPORT_GEOALG std::ostream& operator<<(std::ostream& out, const Point2D& p);
    27.         friend EXPORT_GEOALG const Point2D operator*(Scalar s, const Point2D& p);
    28.         friend EXPORT_GEOALG const Point2D operator*(const Point2D& p, Scalar 
    29.         friend EXPORT_GEOALG const Point2D operator/(const Point2D& p, Scalar s);
    30.         friend EXPORT_GEOALG const Point2D operator+(const Point2D& a, const Point2D& b)
    31.         friend EXPORT_GEOALG const Vec2D operator-(const Point2D& a, const Point2D& b);
    32.         friend EXPORT_GEOALG const Point2D asum(int, Scalar[], Point2D[]);
    33.  
    34.  
    35.          friend EXPORT_GEOALG Scalar d(const Point2D& a, const Point2D& b);
    36.  
    37.  
    38.         friend EXPORT_GEOALG Scalar d2(const Point2D& a, const Point2D& b);
    39.  
    40.     private:
    41.         Scalar _x;
    42.         Scalar _y;
    43.         PointError mError;
    44.  
    45.     public:
    46.         Point2D(Scalar x = 0.0, Scalar y = 0.0);
    47.         Point2D(const QPointF& p);
    48.  
    49. 	Scalar x() const
    50.         {
    51.             return _x;
    52.         }
    53.  
    54. 	Scalar y() const
    55.         {
    56.             return _y;
    57.         }
    58.  
    59. 	void setX(Scalar x)
    60.         {
    61.             _x = x;
    62.         }
    63.  
    64. 	void setY(Scalar y)
    65.         {
    66.             _y = y;
    67.         }
    68.  
    69. 	Vec2D toVec2D() const { return Vec2D(x(), y()); }
    70.  
    71.          const Point2D operator+(const Vec2D& v) const;
    72.  
    73.         Point2D& operator+=(const Vec2D& v);
    74.  
    75.         const Point2D operator-(const Vec2D& v) const;
    76.  
    77.         Point2D& operator-=(const Vec2D& v);
    78.  
    79.         //! test for equality
    80.         bool operator==(const Point2D& p) const;
    81.  
    82.         //! test for inequality
    83.         bool operator!=(const Point2D& p) const;
    84.  
    85.  
    86.         void clError()
    87.             {
    88.                 mError = PE_NoError;
    89.             }
    90.  
    91.  
    92.         PointError error() const
    93.             {
    94.                 return mError;
    95.             }
    96.  
    97.  
    98.         const char* errorString() const;
    99.  
    100.  
    101. 	QPointF toQPointF() const;
    102.  
    103.  
    104. 	bool isNull() const;
    105.     };
    106. }
    107. #endif // POINT2D_HPP
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    So I created a simple test:
    Qt Code: 
    1. #ifndef TESTPOINT2D_HPP
    2. #define TESTPOINT2D_HPP
    3.  
    4. // $Rev$
    5. // $Date$
    6. // $Author$
    7. // $HeadURL$
    8.  
    9. #include <QtTest/QtTest>
    10. #include "../../src/common/geoalg/Point2D.hpp"
    11.  
    12. class TestPoint2D : public QObject
    13. {
    14.     Q_OBJECT
    15.  
    16. private slots:
    17.     void compareCoords_data();
    18.     void compareCoords();
    19.  
    20.     // void add_data();
    21.     // void add();
    22. };
    23. #endif // TESTPOINT2D_HPP
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    Qt Code: 
    1. #include "TestPoint2D.hpp"
    2.  
    3. using namespace GeoAlg;
    4.  
    5. void TestPoint2D::compareCoords_data()
    6. {
    7.     QTest::addColumn<Scalar>("pointCoord");
    8.     QTest::addColumn<Scalar>("result");
    9.  
    10.     QTest::newRow("simple x") << Point2D(1,1).x() << 1;
    11.     QTest::newRow("simple y") << Point2D(1,1).y() << 1;
    12.     QTest::newRow("null x") << Point2D(0,0).x() << 0;
    13.     QTest::newRow("null y") << Point2D(0,0).y() << 0;
    14.     QTest::newRow("neg. x") << Point2D(-5, -8).x() << -5;
    15.     QTest::newRow("neg. y") << Point2D(-5, -8).y() << -8;
    16.     QTest::newRow("decimal x") << Point2D(4.567, -8.901) << 4.567;
    17.     QTest::newRow("decimal y") << Point2D(4.567, -8.901) << -8.901;
    18.  
    19. }
    20.  
    21. void TestPoint2D::compareCoords()
    22. {
    23.     QFETCH(Scalar, pointCoord);
    24.     QFETCH(Scalar, result);
    25.  
    26.     QCOMPARE(pointCoord, result);
    27. }
    28.  
    29. QTEST_MAIN(TestPoint2D)
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    While compiling I get an error that is related to Qt's type system (I suppose):
    Qt Code: 
    1. D:\projekt\work\Tracker\b1tracker\test\GeoAlg>nmake
    2.  
    3. Microsoft (R) Program Maintenance Utility Version 9.00.21022.08
    4. Copyright (C) Microsoft Corporation.  All rights reserved.
    5.  
    6.         "C:\Programme\Microsoft Visual Studio 9.0\VC\BIN\nmake.exe" -f Makefile.
    7. Debug
    8.  
    9. Microsoft (R) Program Maintenance Utility Version 9.00.21022.08
    10. Copyright (C) Microsoft Corporation.  All rights reserved.
    11.  
    12.         D:\Qt\4.5.3\bin\moc.exe -DUNICODE -DWIN32 -DQT_LARGEFILE_SUPPORT -D_USE_
    13. MATH_DEFINES -DQT_DLL -DQT_GUI_LIB -DQT_CORE_LIB -DQT_THREAD_SUPPORT -I"d:\Qt\4.
    14. 5.3\include\QtCore" -I"d:\Qt\4.5.3\include\QtGui" -I"d:\Qt\4.5.3\include" -I"d:\
    15. Qt\4.5.3\include\QtTest" -I"." -I"d:\Qt\4.5.3\include\ActiveQt" -I"debug" -I"d:\
    16. Qt\4.5.3\mkspecs\win32-msvc2008" -D_MSC_VER=1500 -DWIN32 TestPoint2D.hpp -o debu
    17. g\moc_TestPoint2D.cpp
    18.         cl -c -nologo -Zm200 -Zc:wchar_t- -Zi -MDd -GR -EHsc -W3 -w34100 -w34189
    19.  -DUNICODE -DWIN32 -DQT_LARGEFILE_SUPPORT -D_USE_MATH_DEFINES -DQT_DLL -DQT_GUI_
    20. LIB -DQT_CORE_LIB -DQT_THREAD_SUPPORT -I"d:\Qt\4.5.3\include\QtCore" -I"d:\Qt\4.
    21. 5.3\include\QtGui" -I"d:\Qt\4.5.3\include" -I"d:\Qt\4.5.3\include\QtTest" -I"."
    22. -I"d:\Qt\4.5.3\include\ActiveQt" -I"debug" -I"d:\Qt\4.5.3\mkspecs\win32-msvc2008
    23. " -Fodebug\ @C:\Users\kleylz\AppData\Local\Temp\nm70F3.tmp
    24. TestPoint2D.cpp
    25. d:\qt\4.5.3\include\qtcore\../../src/corelib/kernel/qmetatype.h(189) : error C20
    26. 39: 'qt_metatype_id' : is not a member of 'QMetaTypeId<T>'
    27.         with
    28.         [
    29.             T=GeoAlg::Point2D
    30.         ]
    31.         d:\qt\4.5.3\include\qtcore\../../src/corelib/kernel/qmetatype.h(189) : w
    32. hile compiling class template member function 'int QMetaTypeId2<T>::qt_metatype_
    33. id(void)'
    34.         with
    35.         [
    36.             T=GeoAlg::Point2D
    37.         ]
    38.         d:\qt\4.5.3\include\qtcore\../../src/corelib/kernel/qmetatype.h(199) : s
    39. ee reference to class template instantiation 'QMetaTypeId2<T>' being compiled
    40.         with
    41.         [
    42.             T=GeoAlg::Point2D
    43.         ]
    44.         d:\qt\4.5.3\include\qttest\../../src/testlib/qtestdata.h(82) : see refer
    45. ence to function template instantiation 'int qMetaTypeId<T>(T *)' being compiled
    46.  
    47.         with
    48.         [
    49.             T=GeoAlg::Point2D
    50.         ]
    51.         .\TestPoint2D.cpp(22) : see reference to function template instantiation
    52.  'QTestData &operator <<<GeoAlg::Point2D>(QTestData &,const T &)' being compiled
    53.  
    54.         with
    55.         [
    56.             T=GeoAlg::Point2D
    57.         ]
    58. NMAKE : fatal error U1077: '"C:\Programme\Microsoft Visual Studio 9.0\VC\BIN\cl.
    59. EXE"' : return code '0x2'
    60. Stop.
    61. NMAKE : fatal error U1077: '"C:\Programme\Microsoft Visual Studio 9.0\VC\BIN\nma
    62. ke.exe"' : return code '0x2'
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    So my question is: Is there a way to integrate/test own types with macro QCOMPARE?

    Thanks for any hints
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  2. 14th October 2010, 19:22 #2
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    wysota
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    Default Re: QTestlib - How to add own types

    If you want to use your own datatypes with QVariant, you need to register them properly. It's explained in QVariant docs.
    Your biological and technological distinctiveness will be added to our own. Resistance is futile.

    Please ask Qt related questions on the forum and not using private messages or visitor messages.

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