diff --git a/test/test_StringManipulation.c b/test/test_StringManipulation.c
index 678a7d4..4c14804 100644
--- a/test/test_StringManipulation.c
+++ b/test/test_StringManipulation.c
@@ -4,6 +4,19 @@
 #include <unity.h>
 #include "../src/stringManipulation.c"
 
+void test_toUnsignedInteger()
+{	
+	/*variables*/
+	char *n1 = "176", *n2 = "199", *n3 = "200", *n4 = "500", *n5 = "600", *n6 = "700";
+	/*assertions*/
+	TEST_ASSERT_EQUAL_INT(176,toUnsignedInteger(n1));
+	TEST_ASSERT_EQUAL_INT(199,toUnsignedInteger(n2));
+	TEST_ASSERT_EQUAL_INT(200,toUnsignedInteger(n3));
+	TEST_ASSERT_EQUAL_INT(500,toUnsignedInteger(n4));
+	TEST_ASSERT_EQUAL_INT(600,toUnsignedInteger(n5));
+	TEST_ASSERT_EQUAL_INT(700,toUnsignedInteger(n6));
+}
+
 void test_everyCharacterIsDigit()
 {
 	/*test block 1*/