Merge branch 'hotfix-1.3' into develop

source/gui/wvl.cpp

@@ -13,6 +13,11 @@
 
 #include <nana/gui/wvl.hpp>
 #include <nana/gui/detail/bedrock.hpp>
+#include <nana/std_thread.hpp>
+#include <iostream> 
+#include <chrono>
+
+//#define NANA_AUTOMATIC_GUI_TESTING
 namespace nana
 {
 	namespace detail
@@ -23,8 +28,67 @@ namespace nana
 		}
 	}
 
-	void exec()
+	void click(widget& w)
+	{
+		std::cout << "Automatically clicking widget "<<w.caption()<<":\n";
+		arg_click arg;
+		arg.window_handle = w.handle();
+		w.events().click.emit(arg, w.handle());
+	}
+
+	/// in seconds
+	void Wait(unsigned wait)
+	{
+		if (!wait) return;
+		std::cout << "waiting " << wait << " sec...\n";
+		std::this_thread::sleep_for(std::chrono::seconds{ wait });
+	}
+
+	void pump()
 	{
 		detail::bedrock::instance().pump_event(nullptr, false);
 	}
+
+
+	void exec(
+		unsigned wait,         // = 1,      ///< for the GUI to be constructed, in seconds  
+		unsigned wait_end,     // = 1,      ///< for the GUI to be destructed, in seconds
+		std::function<void()>f // = {}      ///< emit events to mimics user actions and may asert results
+	)
+	{
+	#ifdef NANA_AUTOMATIC_GUI_TESTING
+			
+	    std::cout << "Will wait " << wait << " sec...\n";
+
+	    std::thread t([wait, &f, wait_end]()
+			{ 
+				Wait( wait );
+				std::cout << "running... \n"  ;
+				if (f)
+				{
+					f();
+					std::cout << "\nCongratulations, this was not trivial !" << std::endl;
+				}else
+				{
+					std::cout << "\nJust a trivial test." << std::endl;
+				}
+				std::cout << "Done... \n";
+				std::cout << "Now again ";
+				Wait(wait_end);
+				std::cout << "Done... Now API::exit all ...\n";
+				API::exit_all();   
+			});		
+
+		pump();
+		if (t.joinable())
+			t.join();
+
+	#else
+		static_cast<void>(wait);
+		static_cast<void>(wait_end);
+		static_cast<void>(f); //to eliminte unused parameter compiler warning.
+
+		pump();
+	#endif
+	}
 }//end namespace nana