diff --git a/upptst/PdbTests/main.cpp b/upptst/PdbTests/main.cpp
index 9af299ea4..822c9c61b 100644
--- a/upptst/PdbTests/main.cpp
+++ b/upptst/PdbTests/main.cpp
@@ -39,7 +39,7 @@ struct Val : Moveable<Val, TypeInfo> {
 Val DeRef(Val val_v)
 {
 	DDUMP(&val_v);
-	val_v.ref--;
+	val_v.ref--; // todo; DBGHELP problem here
 	val_v.rvalue = false;
 	return val_v;
 }
@@ -71,9 +71,22 @@ void Test3(String *ptr_s)
 	DDUMP(ptr_s);
 	DUMP(*ptr_s);
 }
-
 GUI_APP_MAIN
 {
+	{
+		Vector<int> x;
+		for(int i = 0; i < 100000; i++)
+			x.Add(i);
+		int *h = x;
+		h = NULL;
+	}
+	{
+		Tuple<int, int *> h;
+		int q[] = { 1, 2, 3, 4, 5 };
+		h.b = q;
+		h.a = 123456789;
+		h.b = NULL;
+	}
 	{
 		Value a = Rectf(1, 1, 1, 1);
 		Value b = Rectf(1, 2, 3, 4);
diff --git a/upptst/TimedSemaphoreCV/TimedSemaphoreCV.cpp b/upptst/TimedSemaphoreCV/TimedSemaphoreCV.cpp
new file mode 100644
index 000000000..20df8312e
--- /dev/null
+++ b/upptst/TimedSemaphoreCV/TimedSemaphoreCV.cpp
@@ -0,0 +1,15 @@
+#include <Core/Core.h>
+
+using namespace Upp;
+
+CONSOLE_APP_MAIN
+{
+	// this is just compilation check:
+		
+	Semaphore s;
+	s.Wait(1000);
+	
+	Mutex m;
+	ConditionVariable cv;
+	cv.Wait(m, 1000);
+}
diff --git a/upptst/TimedSemaphoreCV/TimedSemaphoreCV.upp b/upptst/TimedSemaphoreCV/TimedSemaphoreCV.upp
new file mode 100644
index 000000000..7da2f7b80
--- /dev/null
+++ b/upptst/TimedSemaphoreCV/TimedSemaphoreCV.upp
@@ -0,0 +1,9 @@
+uses
+	Core;
+
+file
+	TimedSemaphoreCV.cpp;
+
+mainconfig
+	"" = "";
+