Add test for SceneMouseArea events

Resolves: #93

Author: adazem009

test/scenemousearea/scenemousearea_test.cpp

@@ -7,6 +7,8 @@
 
 using namespace scratchcpprender;
 
+using ::testing::NiceMock;
+
 TEST(SceneMouseAreaTest, Constructors)
 {
     SceneMouseArea area1;
@@ -15,6 +17,56 @@ TEST(SceneMouseAreaTest, Constructors)
     ASSERT_EQ(area2.parentItem(), &area1);
 }
 
+TEST(SceneMouseAreaTest, Events)
+{
+    QPointingDevice dev;
+    SceneMouseArea mouseArea;
+    ProjectLoader loader;
+    mouseArea.setProjectLoader(&loader);
+    NiceMock<RenderedTargetMock> stage;
+    mouseArea.setStage(&stage);
+
+    // mouseMoved
+    {
+        QHoverEvent event(QEvent::HoverMove, {}, {}, {}, Qt::NoModifier, &dev);
+        QSignalSpy spy(&mouseArea, &SceneMouseArea::mouseMoved);
+        QCoreApplication::sendEvent(&mouseArea, &event);
+        ASSERT_EQ(spy.count(), 1);
+    }
+
+    // mousePressed
+    {
+        QMouseEvent event(QEvent::MouseButtonPress, {}, {}, {}, Qt::LeftButton, Qt::LeftButton, Qt::NoModifier, &dev);
+        QSignalSpy spy(&mouseArea, &SceneMouseArea::mousePressed);
+        QCoreApplication::sendEvent(&mouseArea, &event);
+        ASSERT_EQ(spy.count(), 1);
+    }
+
+    // mouseReleased
+    {
+        QMouseEvent event(QEvent::MouseButtonRelease, {}, {}, {}, Qt::LeftButton, Qt::LeftButton, Qt::NoModifier, &dev);
+        QSignalSpy spy(&mouseArea, &SceneMouseArea::mouseReleased);
+        QCoreApplication::sendEvent(&mouseArea, &event);
+        ASSERT_EQ(spy.count(), 1);
+    }
+
+    // mouseWheelUp
+    {
+        QWheelEvent event(QPointF(), QPointF(), QPoint(2, 3), QPoint(10, 15), Qt::LeftButton, Qt::NoModifier, Qt::NoScrollPhase, false);
+        QSignalSpy spy(&mouseArea, &SceneMouseArea::mouseWheelUp);
+        QCoreApplication::sendEvent(&mouseArea, &event);
+        ASSERT_EQ(spy.count(), 1);
+    }
+
+    // mouseWheelDown
+    {
+        QWheelEvent event(QPointF(), QPointF(), QPoint(2, 3), QPoint(10, -15), Qt::LeftButton, Qt::NoModifier, Qt::NoScrollPhase, false);
+        QSignalSpy spy(&mouseArea, &SceneMouseArea::mouseWheelDown);
+        QCoreApplication::sendEvent(&mouseArea, &event);
+        ASSERT_EQ(spy.count(), 1);
+    }
+}
+
 TEST(SceneMouseAreaTest, Stage)
 {
     SceneMouseArea mouseArea;