Glasgow | 25-ITP-SEP | Mohammed Abdoon | Sprint 3 | Coursework/2-practice-tdd

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

@@ -1,5 +1,10 @@
 function countChar(stringOfCharacters, findCharacter) {
-  return 5
+  let output = 0;
+  for( let i=0; i <= stringOfCharacters.length; i++ ) {
+    if(stringOfCharacters[i] === findCharacter)
+      output++;
+  }
+  return output;
 }
 
 module.exports = countChar;

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

@@ -22,3 +22,9 @@ test("should count multiple occurrences of a character", () => {
 // And a character char that does not exist within the case-sensitive str,
 // When the function is called with these inputs,
 // Then it should return 0, indicating that no occurrences of the char were found in the case-sensitive str.
+test("should return 0 if there are no occurrences at all", () => {
+  const str = "Hello World!";
+  const char = "a";
+  const count = countChar(str, char);
+  expect(count).toEqual(0);
+});

Sprint-3/2-practice-tdd/get-ordinal-number.js

@@ -1,5 +1,7 @@
 function getOrdinalNumber(num) {
-  return "1st";
+  if(num === 1)
+    return "1st";
+  return 0;
 }
 
 module.exports = getOrdinalNumber;

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

@@ -1,5 +1,8 @@
-function repeat() {
-  return "hellohellohello";
+function repeat(str, count) {
+  if(count < 0) {
+    return "Error: Negative counts are not valid.";
+  }
+  return str.repeat(count);
 }
 
 module.exports = repeat;

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

@@ -20,13 +20,31 @@ test("should repeat the string count times", () => {
 // Given a target string str and a count equal to 1,
 // When the repeat function is called with these inputs,
 // Then it should return the original str without repetition, ensuring that a count of 1 results in no repetition.
+test("should repeat the string only 1 time (no repetition)", () => {
+  const str = "hello";
+  const count = 1;
+  const repeatedStr = repeat(str, count);
+  expect(repeatedStr).toEqual("hello");
+});
 
 // case: Handle Count of 0:
 // Given a target string str and a count equal to 0,
 // When the repeat function is called with these inputs,
 // Then it should return an empty string, ensuring that a count of 0 results in an empty output.
+test("should repeat the string 0 times ( means the output will be an empty string)", () => {
+  const str = "hello";
+  const count = 0;
+  const repeatedStr = repeat(str, count);
+  expect(repeatedStr).toEqual("");
+});
 
 // case: Negative Count:
 // Given a target string str and a negative integer count,
 // When the repeat function is called with these inputs,
 // Then it should throw an error or return an appropriate error message, as negative counts are not valid.
+test("should repeat the string 0 times ( means the output will be an empty string)", () => {
+  const str = "hello";
+  const count = -3;
+  const repeatedStr = repeat(str, count);
+  expect(repeatedStr).toEqual("Error: Negative counts are not valid.");
+});