Qt Unit testing Error Please Help!!

[Amogh]

I was trying to execute the sample unit test for Gui Element !
#include <QString>
#include <QtTest>
#include<QtWidgets>

class Sample_Unit_Testing : public QObject
{
Q_OBJECT

public:
Sample_Unit_Testing();

private Q_SLOTS:
void tst_Gui();
};
void Sample_Unit_Testing::tst_Gui()
{
QLineEdit line_edit;
QTest::keyClicks(&line_edit,"abcd");
QCOMPARE(line_edit.text(),QString("abcd"));
}

this is my code, When i run this code i get an error which says

QFATAL : Sample_Unit_Testing::tst_Gui() QWidget: Must construct a QApplication before a QWidget
FAIL! : Sample_Unit_Testing::tst_Gui() Received a fatal error.

Can anybody explain it me about the error and help??

[aha_1980]

Hi @Amogh,

do you use QTEST_MAIN? If not, please show your main function resp. use QTEST_MAIN.

Regards