diff --git a/test/test_isogram.c b/test/test_isogram.c
index b71405d..c598dbf 100644
--- a/test/test_isogram.c
+++ b/test/test_isogram.c
@@ -1,36 +1,20 @@
 
-#include "../src/isogram.h"
-#include "vendor/unity.h"
-#include <stdlib.h>
 
-void setUp(){}
 
-void tearDown(){}
 
-// this is a unit test
-void test_empty_string(void) { 
-    TEST_ASSERT_TRUE(is_isogram("")); 
-}
+bool is_isogram(const char phrase[]){
 
-// this is a unit test
-void test_short_isograms(void) {
-    TEST_ASSERT_TRUE(is_isogram("abc"));
-    TEST_ASSERT_TRUE(is_isogram("opq"));
-}
+    char string [] = "Wort"
 
-void test_short_non_isograms(void) {
-    TEST_ASSERT_FALSE(is_isogram("abca"));
-    TEST_ASSERT_FALSE(is_isogram("opqp"));
-}
+    for (char candidate = 'a'; candidate <= 'z'; candidate++){
+        int counter = 0;
 
+        for (int i=0; string[i] != 0; i++){ //until it is not 0 (/0 is end of string)
+            if string[i] == candidate{
+                counter++;
+            }
+        }
 
-int main(void) {
-    UnityBegin("isIsogram");
+    }
 
-    RUN_TEST(test_empty_string);
-    RUN_TEST(test_short_isograms);
-    RUN_TEST(test_short_non_isograms);
-
-    UnityEnd();
-    return 0;
-}
+}
\ No newline at end of file