diff --git a/src/test_decbinary.c b/src/test_decbinary.c
index bf9c15b..747220c 100644
--- a/src/test_decbinary.c
+++ b/src/test_decbinary.c
@@ -1,6 +1,18 @@
-#include "decbinary.h"
+#ifdef TEST
 
+#include "decbinary.h"
+#include "unity.h"
 
 void setUp(void)
 {
 }
+
+void test_decimal_1(void)
+{
+    int result, expected = 10;
+    result = decimal_to_binary(2);
+
+    TEST_ASSERT_EQUAL_INT(expected, result);
+}
+
+#endif //TEST
\ No newline at end of file