diff --git a/tests/Makefile b/tests/test1/Makefile
similarity index 64%
rename from tests/Makefile
rename to tests/test1/Makefile
index 5a21bf4..1cbed8b 100644
--- a/tests/Makefile
+++ b/tests/test1/Makefile
@@ -1,12 +1,12 @@
-CFLAGS=-I../cube/User/Inc -DTEST
+CFLAGS=-I../../cube/User/Inc -DTEST
 
 test:	ringbuffer.o  test.o
 	gcc -o $@ -lcunit $^
 
-ringbuffer.o: ../cube/User/Src/ringbuffer.c
+ringbuffer.o: ../../cube/User/Src/ringbuffer.c
 	gcc -c -o $@ $(CFLAGS) $^
 
-logger.o: ../cube/User/Src/logger.c
+logger.o: ../../cube/User/Src/logger.c
 	gcc -c -o $@ $(CFLAGS) $^
 
 test.o:	test.c
diff --git a/tests/test.c b/tests/test1/test.c
similarity index 100%
rename from tests/test.c
rename to tests/test1/test.c
diff --git a/tests/test2/Makefile b/tests/test2/Makefile
new file mode 100644
index 0000000..1eb6495
--- /dev/null
+++ b/tests/test2/Makefile
@@ -0,0 +1,15 @@
+test:	test.o
+	gcc -o $@ $^
+
+test.o:	test.c
+	gcc -c -o $@ $(CFLAGS) $^
+
+
+.PHONY: run
+run:	test
+	./test
+
+.PHONY: clean
+clean:
+	rm -f *.o test
+
diff --git a/tests/test2/test.c b/tests/test2/test.c
new file mode 100644
index 0000000..3633e5b
--- /dev/null
+++ b/tests/test2/test.c
@@ -0,0 +1,10 @@
+#include <stdio.h>
+#include <stdint.h>
+
+int main() {
+  uint32_t i = -10;
+  int32_t j = i;
+
+  printf("%lu %d\n", i, j);
+}
+