start of unit test

src/Tool/IntelliToolCircle.h

@@ -4,10 +4,15 @@
 
 #include "QColor"
 #include "QPoint"
+
+//for unit testing
+class UnitTest;
+
 /*!
  * \brief The IntelliToolCircle class represents a tool to draw a circle.
  */
 class IntelliToolCircle : public IntelliTool {
+    friend UnitTest;
 /*!
  * \brief A function that implements a circle drawing algorithm.
  * \param radius    - The radius of the circle.