Birmingham | 25-ITP-Sept | Khor Biel | Sprint 3 | coursework/sprint-3-practice-tdd

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

@@ -1,5 +1,11 @@
 function countChar(stringOfCharacters, findCharacter) {
-  return 5
+   let count = 0;
+  for (let char of stringOfCharacters) {
+    if (char === findCharacter) {
+      count++;
+    }
+  }
+  return count;
 }
 
 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 when the character is not found", () => {
+  const str = "hello";
+  const char = "z";
+  const count = countChar(str, char);
+  expect(count).toEqual(0);
+});

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

@@ -1,5 +1,24 @@
 function getOrdinalNumber(num) {
-  return "1st";
-}
+
+let result;
+
+  if (num % 100 == 11 || num % 100 == 12 || num % 100 == 13){
+    result = num.toString() + "th";
+  }
+  else if (num % 10 == 1){
+    result = num.toString() +"st";
+  }
+  else if (num % 10 == 2){
+    result = num.toString() + "nd";
+  }
+  else if (num % 10 == 3){
+    result = num.toString() + "rd";
+  }
+  else {
+    result = num.toString() + "th";
+  }
+
+  return result
+} 
 
 module.exports = getOrdinalNumber;

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

@@ -8,6 +8,44 @@ const getOrdinalNumber = require("./get-ordinal-number");
 // When the number is 1,
 // Then the function should return "1st"
 
+
+// Case 1: Identify the ordinal number for 1
 test("should return '1st' for 1", () => {
   expect(getOrdinalNumber(1)).toEqual("1st");
 });
+
+// Case 2: Identify the ordinal number for 2
+test("should return '2nd' for 2", () => {
+  expect(getOrdinalNumber(2)).toEqual("2nd");
+});
+
+// Case 3: Identify the ordinal number for 3
+test("should return '3rd' for 3", () => {
+  expect(getOrdinalNumber(3)).toEqual("3rd");
+});
+
+// Case 4: Identify the ordinal number for 4
+test("should return '4th' for 4", () => {
+  expect(getOrdinalNumber(4)).toEqual("4th");
+});
+
+// Case 5: Handle special cases 11, 12, 13
+test("should return '11th', '12th', '13th' for special cases", () => {
+  expect(getOrdinalNumber(11)).toEqual("11th");
+  expect(getOrdinalNumber(12)).toEqual("12th");
+  expect(getOrdinalNumber(13)).toEqual("13th");
+});
+
+// Case 6: Handle 21, 22, 23 correctly
+test("should handle 21st, 22nd, 23rd correctly", () => {
+  expect(getOrdinalNumber(21)).toEqual("21st");
+  expect(getOrdinalNumber(22)).toEqual("22nd");
+  expect(getOrdinalNumber(23)).toEqual("23rd");
+});
+
+// Case 7: Handle numbers ending with 0, 4–9
+test("should return 'th' for numbers ending with 0, 4–9", () => {
+  expect(getOrdinalNumber(10)).toEqual("10th");
+  expect(getOrdinalNumber(14)).toEqual("14th");
+  expect(getOrdinalNumber(19)).toEqual("19th");
+});

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

@@ -1,5 +1,16 @@
-function repeat() {
-  return "hellohellohello";
+function repeat(str, count) {
+
+if (count < 0) {
+  return null;
+} else if (count == 0) {
+  return "";
+}
+let result = "";
+for (let i = 0; i < count; i++) {
+  result += str;
+}
+return result;
+
 }
 
 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("handle Count of 1", () => {
+  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("handle Count of 0", () => {
+  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("Negative Count", () => {
+  const str = "hello";
+  const count = -1;
+  const repeatedStr = repeat(str, count);
+  expect(repeatedStr).toEqual(null);
+});