Add two test to cover empty string and speciale characters

Author: AhmadHmedann

Sprint-3/2-practice-tdd/count.js

@@ -17,8 +17,3 @@ function assertFunction(currentOutput,targetOutput)
     `expect ${currentOutput} to equal ${targetOutput}`
   );
 }
-assertFunction(countChar("Ahmaaa hmaaa",'a'),6);
-assertFunction(countChar("Ahmaaa hmaaa",'m'),2 );
-assertFunction(countChar("Ahmaaa hmaaa",'b'),0);
-assertFunction(countChar("Ahmaaa hmaaa",'A'),1);
-assertFunction(countChar("",'A'),0);

Sprint-3/2-practice-tdd/count.test.js

@@ -40,4 +40,16 @@ test("should return 2 occurrence of m characters",()=>{
   const char = "m";
   const count = countChar(str, char);
   expect(count).toEqual(2);
-})
+})
+test("should return  occurrence of any characters in empty string",()=>{
+  const str = "";
+  const char = "@";
+  const count = countChar(str, char);
+  expect(count).toEqual(0);
+})
+test("should return 1 occurrence of @ characters in empty string",()=>{
+  const str = "Ahmadhm@gamil.com";
+  const char = "@";
+  const count = countChar(str, char);
+  expect(count).toEqual(1);
+})