QTest problem

Creatorczyk

Hi,
I want make simply unit test for my class Section:

class Section : public QWidget
{
    Q_OBJECT

public:
    explicit Section(SectionSettings& sectionSettings, QWidget *parent = nullptr);

    SectionSettings getParameters(){return sectionSettings;}

    ~Section();
};

My test pro file:

QT += testlib
QT += gui
QT += widgets
QT += core

CONFIG += qt warn_on depend_includepath testcase

TEMPLATE = app

SOURCES += \ 
    testsection.cpp
    ../../GreenhouseApp/src/SectionWidget/section.cpp

HEADERS += \
    testsection.h
    ../../GreenhouseApp/src/SectionWidget/section.h

Header file:

#include <QtTest>
#include <QCoreApplication>

#include "../../GreenhouseApp/src/SectionWidget/section.h"

class TestSection : public QObject
{
    Q_OBJECT

private slots:
    void testConstructor();
};

Source file:

#include "testsection.h"

void TestSection::testConstructor()
{
    SectionSettings settings;
    Section section(settings);
}

QTEST_MAIN(TestSection)

But when i try complie test i get error :

error: undefined reference to `Section::Section(SectionSettings&, QWidget*)'
error: undefined reference to `Section::Section(SectionSettings&, QWidget*)'
error: undefined reference to `Section::~Section()'

What am I doing wrong? The path to section.h is correct

SGaist

Hi,

Where is SectionSettings defined ?

Creatorczyk

@SGaist In the other file "settingsdialog.h" which is included in "section.h"

SGaist

And the implementation is in the corresponding .cpp that you do not include in your test project ?

Creatorczyk

@SGaist I added this file to .pro file and test's header file and it doesn't change anything. I still have the same error.

But i move code from function to test header file:

#include <QtTest>
#include <QtWidgets>
#include <QCoreApplication>

#include "../../GreenhouseApp/src/SectionWidget/section.h"
#include "../../GreenhouseApp/src/SectionWidget/settingsdialog.h"

class TestSection : public QObject
{
    Q_OBJECT

public:
    SectionSettings settings;
    Section section(settings);

private slots:
    void testConstructor();
};

and I received an error:

error: ‘settings’ is not a type

My struct SectionSettings definition looks like:

struct SectionSettings{
    quint8 sectionID;
    QString section_name;
    QString picture_path;
    quint8 temperature_expected;
    quint8 humidity_expected;
    quint8 insolation_expected;
    quint8 time_hours;
    quint8 time_minutes;

    SectionSettings(quint8 id = 0,
                    QString name = "Section",
                    QString path = "",
                    quint8 temp = 0,
                    quint8 hum = 0,
                    quint8 ins = 0,
                    quint8 hours = 0,
                    quint8 minutes = 0)
         :sectionID(id),
          section_name(name),
          picture_path(path),
          temperature_expected(temp),
          humidity_expected(hum),
          insolation_expected(ins),
          time_hours(hours),
          time_minutes(minutes){}

    bool operator ==(const SectionSettings &s){
        if((this->sectionID == s.sectionID) &&
                (this->section_name == s.section_name) &&
                (this->picture_path == s.picture_path) &&
                (this->temperature_expected == s.temperature_expected) &&
                (this->humidity_expected == s.humidity_expected) &&
                (this->insolation_expected == s.insolation_expected) &&
                (this->time_hours == s.time_hours) &&
                (this->time_minutes == s.time_minutes)){
            return true;
        }else{
            return false;
        }
    }

};

jsulm

@Creatorczyk said in QTest problem:

error: ‘settings’ is not a type

Of course it's not - it is a member variable, do you mean:

Section section(SectionSettings);

?

Can you show your current pro file for the test project?

Creatorczyk

@jsulm

My .pro file:

QT += testlib
QT += gui
QT += widgets

CONFIG += qt warn_on depend_includepath testcase

TEMPLATE = app

SOURCES += \ 
    testsection.cpp
    ../../GreenhouseApp/src/SectionWidget/section.cpp

HEADERS += \
    testsection.h
    ../../GreenhouseApp/src/SectionWidget/section.h

Creatorczyk

@jsulm I know what I made a mistake in:

Section section(settings);

the compiler thinks it's a function declaration and not an object creation, and reports that the variable type is missing

But I still don't know why creating a Section object in the method "testConstructor()" I gets an error

void TestSection::testConstructor()
{
    SectionSettings settings;
    Section sections(settings);
}

In function TestSection::testConstructor()': error: undefined reference to Section::Section(SectionSettings&, QWidget*)'
error: undefined reference to `Section::~Section()'

jsulm

@Creatorczyk said in QTest problem:

TestSection::testConstructor()': error: undefined reference to Section::Section(SectionSettings&, QWidget*)'
error: undefined reference to `Section::~Section()'

Apparently the linker can't find Section constructor and destructor definitions.
The reason is probably that your pro file is wrong. It should be

SOURCES += \ 
    testsection.cpp \
    ../../GreenhouseApp/src/SectionWidget/section.cpp

HEADERS += \
    testsection.h \
    ../../GreenhouseApp/src/SectionWidget/section.h

Creatorczyk

@jsulm Thanks, I solved the problem