fix test passing by default

Author: A-O-Emmanuel

exercises/practice/error-handling/.meta/proof.ci.js

@@ -4,7 +4,7 @@ export const processString = (input) => {
       throw new TypeError('Input must be a string');
     }
     if (input === '') {
-      throw new Error('Input cannot be empty');
+      throw new TypeError('Input cannot be empty');
     }
     return input.toUpperCase();
   } catch (error) {

exercises/practice/error-handling/error-handling.spec.js

@@ -7,7 +7,7 @@ describe('Error Handling', () => {
   });
 
   xtest('throws Error message if string is empty', () => {
-    expect(() => processString('')).toThrow(Error);
+    expect(() => processString('')).toThrow(TypeError);
   });
 
   xtest('returns uppercase string if input is valid', () => {