London | 26-ITP-May | Liridona Shehu | Sprint 3 | Coursework/Sprint-3-practice-tdd

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

@@ -1,5 +1,13 @@
 function countChar(stringOfCharacters, findCharacter) {
-  return 5
+  //count the occurrences of the char in the string
+  // Make it case insensitive
+  let countChar = 0;
+  for (const char of stringOfCharacters) {
+    if (char.toLowerCase() === findCharacter.toLowerCase()) {
+      countChar++;
+    }
+  }
+  return countChar;
 }
 
 module.exports = countChar;

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

@@ -22,3 +22,38 @@ test("should count multiple occurrences of a character", () => {
 // And a character `char` that does not exist within `str`.
 // When the function is called with these inputs,
 // Then it should return 0, indicating that no occurrences of `char` were found.
+
+test("should return 0 if the character in not in the given string", () => {
+  const str = "aaaaa";
+  const char = "b";
+  const count = countChar(str, char);
+  expect(count).toEqual(0);
+});
+
+test("should return 1 if the is 1 occurrence of the char in the string", () => {
+  const str = "abc";
+  const char = "c";
+  const count = countChar(str, char);
+  expect(count).toEqual(1);
+});
+
+test("should return 0 if there is a empty string ", () => {
+  const str = "";
+  const char = "c";
+  const count = countChar(str, char);
+  expect(count).toEqual(0);
+});
+
+test("should return 0 if character is empty", () => {
+  const str = "abcdefg";
+  const char = "";
+  const count = countChar(str, char);
+  expect(count).toEqual(0);
+});
+
+test("should be case insensitive ", () => {
+  const str = "Successful";
+  const char = "s";
+  const count = countChar(str, char);
+  expect(count).toEqual(3);
+});