qt5 demo: add example of unit testing using QtTest integrated into waf with standard waf_unit_test Tool

demos/qt5/foo.cpp

@@ -3,7 +3,24 @@
 #include "foo.h"
 
 Foo::Foo() : QWidget(NULL) {
+	m_button = new QPushButton("Foo Button", this);
+	m_button->setGeometry(QRect(QPoint(50, 60),
+	QSize(120, 50)));
+	connect(m_button, SIGNAL (released()), this, SLOT (handleButton()));
+	myToggle = true;
+}
 
+void Foo::handleButton() {
+	if (myToggle) {
+		m_button->setText("Button Foo");
+	} else {
+		m_button->setText("Foo Button");
+	}
+	myToggle = !myToggle;
+}
+
+int Foo::FortyTwo() {
+	return 42;
 }
 
 class Bar_private : public QWidget {

demos/qt5/foo.h

@@ -4,13 +4,20 @@
 #define _FOO
 
 #include <QWidget>
+#include <QPushButton>
 
 class Foo : public QWidget {
 	Q_OBJECT
 	signals:
 		void test();
+	private slots:
+		void handleButton();
 	public:
 		Foo();
+		int FortyTwo();
+		QPushButton *m_button;
+	public:
+		bool myToggle;
 };
 
 #endif

demos/qt5/main.cpp

@@ -4,12 +4,13 @@
 //#include <QString>
 //#include "mainwindow.h"
 #include "ui_but.h"
+#include "foo.h"
 
 int main(int argc, char **argv)
 {
     Q_INIT_RESOURCE(res);
     QApplication app(argc, argv);
-    QWidget window;
+    Foo window;
     Ui::Form ui;
     ui.setupUi(&window);
     window.show();

demos/qt5/testqt5.cpp

@@ -0,0 +1,31 @@
+// Example of Qt5 Unit test with QtTest library
+// Federico Pellegrin, 2019 (fedepell)
+
+#include "foo.h"
+#include <QtTest/QtTest>
+
+class TestQt5Test: public QObject {
+	Q_OBJECT
+	private:
+		Foo myFoo;
+	private slots:
+		void testGui();
+		void testFunc();
+};
+
+// Test of the UI by simulating a button click and button label reading
+void TestQt5Test::testGui() {
+	QCOMPARE(myFoo.m_button->text(), QString("Foo Button"));
+	QTest::mouseClick(myFoo.m_button,Qt::LeftButton,Qt::NoModifier,QPoint(5,5),0);
+	QCOMPARE(myFoo.m_button->text(), QString("Button Foo"));
+}
+
+// Test of a normal function
+void TestQt5Test::testFunc() {
+	QCOMPARE(myFoo.FortyTwo(), 44); // this fails! 42 != 44
+}
+
+QTEST_MAIN(TestQt5Test)
+
+#include "testqt5.moc"
+

demos/qt5/wscript

@@ -1,6 +1,7 @@
 #! /usr/bin/env python
 # encoding: utf-8
 # Thomas Nagy, 2016 (ita)
+# Federico Pellegrin, 2019 (fedepell)
 
 VERSION='0.0.1'
 APPNAME='qt5_test'
@@ -9,10 +10,10 @@ top = '.'
 out = 'build'
 
 def options(opt):
-	opt.load('compiler_cxx qt5')
+	opt.load('compiler_cxx qt5 waf_unit_test')
 
 def configure(conf):
-	conf.load('compiler_cxx qt5')
+	conf.load('compiler_cxx qt5 waf_unit_test')
 	#conf.env.append_value('CXXFLAGS', ['-g']) # test
 
 def build(bld):
@@ -32,3 +33,25 @@ def build(bld):
 		langname = 'somefile', # include the .qm files from somefile.qrc
 	)
 
+	# Example of integration of Qt5 Unit tests using Qt5Test using waf_unit_test
+	bld(
+		features = 'qt5 cxx cxxprogram test',
+		use      = 'QT5CORE QT5WIDGETS QT5TEST',
+		source   = 'foo.cpp testqt5.cpp',
+		moc      = 'foo.h',
+		target   = 'footest',
+		includes = '.',
+		# ut_str   = './${SRC} -o test-report.xml,xunitxml', # put output to a xunit xml
+	)
+
+	bld.add_post_fun(print_test_results)	# print output of test runner to user
+
+
+def print_test_results(bld):
+	lst = getattr(bld, 'utest_results', [])
+	if not lst:
+		return
+	for (f, code, out, err) in lst:
+		print(out.decode('utf-8'))
+		print(err.decode('utf-8'))
+