add an error message and removed the commented code on line 48

Author: alizada-dev

Sprint-3/2-practice-tdd/repeat-str.js

@@ -2,7 +2,7 @@ function repeatStr(str, count) {
   if (count >= 0) {
     return str.repeat(count);
   } else {
-    throw new Error("");
+    throw new Error("Count must be a non-negative number.");
   }
 }
 

Sprint-3/2-practice-tdd/repeat-str.test.js

@@ -45,8 +45,6 @@ test("should return an empty string when count == 0", () => {
 test("should throw an error", () => {
   const str = "responsibility";
   const count = -5;
-  // const repeatedStr = repeatStr(str, count);
-  // In order for it to work, 'the fuction' itself should directly be passed to 'expect'.
-  // Moreover, the function should be wrapped in a function call so jest can run it
+  
   expect(() => repeatStr(str, count)).toThrow();
 })