2-practice-tdd/get ordinal number test

Author: enjoy15

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

@@ -1,5 +1,21 @@
 function getOrdinalNumber(num) {
-  return "1st";
+  // Handle special cases for teens (11th, 12th, 13th)
+  if (num % 100 >= 11 && num % 100 <= 13) {
+    return num + "th";
+  }
+  
+  // Handle based on last digit
+  const lastDigit = num % 10;
+  
+  if (lastDigit === 1) {
+    return num + "st";
+  } else if (lastDigit === 2) {
+    return num + "nd";
+  } else if (lastDigit === 3) {
+    return num + "rd";
+  } else {
+    return num + "th";
+  }
 }
 
 module.exports = getOrdinalNumber;

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

@@ -11,3 +11,100 @@ const getOrdinalNumber = require("./get-ordinal-number");
 test("should return '1st' for 1", () => {
   expect(getOrdinalNumber(1)).toEqual("1st");
 });
+
+// Case 2: Identify the ordinal number for 2
+// When the number is 2,
+// Then the function should return "2nd"
+
+test("should return '2nd' for 2", () => {
+  expect(getOrdinalNumber(2)).toEqual("2nd");
+});
+
+// Case 3: Identify the ordinal number for 3
+// When the number is 3,
+// Then the function should return "3rd"
+
+test("should return '3rd' for 3", () => {
+  expect(getOrdinalNumber(3)).toEqual("3rd");
+});
+
+// Case 4: Identify the ordinal number for 4
+// When the number is 4,
+// Then the function should return "4th"
+
+test("should return '4th' for 4", () => {
+  expect(getOrdinalNumber(4)).toEqual("4th");
+});
+
+// Case 5: Identify the ordinal number for 11
+// When the number is 11,
+// Then the function should return "11th"
+
+test("should return '11th' for 11", () => {
+  expect(getOrdinalNumber(11)).toEqual("11th");
+});
+
+// Case 6: Identify the ordinal number for 12
+// When the number is 12,
+// Then the function should return "12th"
+
+test("should return '12th' for 12", () => {
+  expect(getOrdinalNumber(12)).toEqual("12th");
+});
+
+// Case 7: Identify the ordinal number for 13
+// When the number is 13,
+// Then the function should return "13th"
+
+test("should return '13th' for 13", () => {
+  expect(getOrdinalNumber(13)).toEqual("13th");
+});
+
+// Case 8: Identify the ordinal number for 21
+// When the number is 21,
+// Then the function should return "21st"
+
+test("should return '21st' for 21", () => {
+  expect(getOrdinalNumber(21)).toEqual("21st");
+});
+
+// Case 9: Identify the ordinal number for 22
+// When the number is 22,
+// Then the function should return "22nd"
+
+test("should return '22nd' for 22", () => {
+  expect(getOrdinalNumber(22)).toEqual("22nd");
+});
+
+// Case 10: Identify the ordinal number for 23
+// When the number is 23,
+// Then the function should return "23rd"
+
+test("should return '23rd' for 23", () => {
+  expect(getOrdinalNumber(23)).toEqual("23rd");
+});
+
+// Case 11: Identify the ordinal number for 101
+// When the number is 101,
+// Then the function should return "101st"
+
+test("should return '101st' for 101", () => {
+  expect(getOrdinalNumber(101)).toEqual("101st");
+});
+
+// Case 12: Identify the ordinal number for 111
+// When the number is 111,
+// Then the function should return "111th"
+
+test("should return '111th' for 111", () => {
+  expect(getOrdinalNumber(111)).toEqual("111th");
+});
+
+// Case 13: Identify the ordinal number for 0
+// When the number is 0,
+// Then the function should return "0th"
+
+test("should return '0th' for 0", () => {
+  expect(getOrdinalNumber(0)).toEqual("0th");
+});
+