- Added Makefile for tests

diff --git a/Makefile b/Makefile
index 9c241b8..2a1ba2d 100644
--- a/Makefile
+++ b/Makefile
@@ -7,6 +7,7 @@
 all:
 	cd library  && make all && cd ..
 	cd programs && make all && cd ..
+	cd tests && make all && cd ..
 
 install:
 	mkdir -p $(DESTDIR)/include/polarssl
@@ -27,4 +28,5 @@
 clean:
 	cd library  && make clean && cd ..
 	cd programs && make clean && cd ..
+	cd tests && make clean && cd ..