Add tests for ordinal number suffixes in getOrdinalNumber function

Author: Alex-Os-Dev-Lab

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

@@ -18,3 +18,43 @@ test("should append 'st' for numbers ending with 1, except those ending with 11"
   expect(getOrdinalNumber(21)).toEqual("21st");
   expect(getOrdinalNumber(131)).toEqual("131st");
 });
+
+// Case 2: Numbers ending with 2 (but not 12)
+// When the number ends with 2, except those ending with 12,
+// Then the function should return a string by appending "nd" to the number.
+test("should append 'nd' for numbers ending with 2, except those ending with 12", () => {
+  expect(getOrdinalNumber(2)).toEqual("2nd");
+  expect(getOrdinalNumber(22)).toEqual("22nd");
+  expect(getOrdinalNumber(172)).toEqual("172nd");
+});
+
+// Case 3: Numbers ending with 3 (but not 13)
+// When the number ends with 3, except those ending with 13,
+// Then the function should return a string by appending "rd" to the number.
+test("should append 'rd' for numbers ending with 3, except those ending with 13", () => {
+  expect(getOrdinalNumber(3)).toEqual("3rd");
+  expect(getOrdinalNumber(23)).toEqual("23rd");
+  expect(getOrdinalNumber(4393)).toEqual("4393rd");
+});
+
+// Case 4: Numbers ending with 11, 12, or 13
+// When the number ends with 11, 12, or 13,
+// Then the function should return a string by appending "th" to the number.
+test("should append 'th' for numbers ending with 11, 12, or 13", () => {
+  expect(getOrdinalNumber(11)).toEqual("11th");
+  expect(getOrdinalNumber(12)).toEqual("12th");
+  expect(getOrdinalNumber(13)).toEqual("13th");
+});
+
+// Case 5: Numbers ending with 0, 4, 5, 6, 7, 8, or 9
+// When the number ends with 0, 4, 5, 6, 7, 8, or 9,
+// Then the function should return a string by appending "th" to the number.
+test("should append 'th' for numbers ending with 0, 4, 5, 6, 7, 8, or 9", () => {
+  expect(getOrdinalNumber(150)).toEqual("150th");
+  expect(getOrdinalNumber(6584)).toEqual("6584th");
+  expect(getOrdinalNumber(85)).toEqual("85th");
+  expect(getOrdinalNumber(659326)).toEqual("659326th");
+  expect(getOrdinalNumber(567)).toEqual("567th");
+  expect(getOrdinalNumber(888)).toEqual("888th");
+  expect(getOrdinalNumber(6589)).toEqual("6589th");
+});