diff --git a/numbers.c b/numbers.c
index a0aa07b..3cef3cd 100644
--- a/numbers.c
+++ b/numbers.c
@@ -18,13 +18,13 @@ unsigned int *createNumbers(unsigned int len)
 {
 	srand(time(NULL));
 	unsigned int* numbers =malloc(sizeof(unsigned int) * len);
-	unsigned int = numberTemp;
+	unsigned int numberTemp;
 	bool check = false;
 
 	for(int i = 0; i < len; i++){
 
 		while(check == false){
-			numberTemp = rand() % 100;
+			numberTemp = (rand() % 2*len)+1;
 
 			for(int j = 0; j < i; j++){
 				if(numberTemp == numbers[j]){
diff --git a/numbersTests.c b/numbersTests.c
new file mode 100644
index 0000000..97e9697
--- /dev/null
+++ b/numbersTests.c
@@ -0,0 +1,22 @@
+#include <stdio.h>
+#include "unity/unity.h"
+#include "numbers.h"
+
+
+
+void setUp(void){}
+void tearDown(void){}
+
+
+
+int main(){
+    UNITY_BEGIN();
+
+    printf("\n============================\nnumbers tests\n============================\n");
+
+    RUN_TEST(TEST_CREATE_STACK);
+    RUN_TEST(TEST_STACK_POP);
+    RUN_TEST(TEST_STACK_PUSH);
+
+    return UNITY_END();
+}
\ No newline at end of file