more testing scenarios added

Author: saff-coder

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

@@ -15,6 +15,7 @@ function getOrdinalNumber(num) {
       return num + "rd";
     default:
       return num + "th";
+      
   }
 }
 

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

@@ -1,23 +1,48 @@
 const getOrdinalNumber = require("./get-ordinal-number");
+
+
 // In this week's prep, we started implementing getOrdinalNumber
 
 // continue testing and implementing getOrdinalNumber for additional cases
 // Write your tests using Jest - remember to run your tests often for continual feedback
 
-// Case 1: Identify the ordinal number for 1
-// When the number is 1,
-// Then the function should return "1st"
-
-test("should return '1st' for 1", () => {
+// Case 1: Numbers ending in 1 (but not 11)
+test("append 'st' to numbers ending in 1, except those ending in 11", () => {
   expect(getOrdinalNumber(1)).toEqual("1st");
+  expect(getOrdinalNumber(21)).toEqual("21st");
+  expect(getOrdinalNumber(101)).toEqual("101st");
+  expect(getOrdinalNumber(111)).toEqual("111th"); // exception
+});
+
+// Case 2: Numbers ending in 2 (but not 12)
+test("append 'nd' to numbers ending in 2, except those ending in 12", () => {
+  expect(getOrdinalNumber(2)).toEqual("2nd");
+  expect(getOrdinalNumber(22)).toEqual("22nd");
+  expect(getOrdinalNumber(102)).toEqual("102nd");
+  expect(getOrdinalNumber(112)).toEqual("112th"); // exception
 });
-test("should return 'th' for 11, 12, 13", () => {
-  expect(getOrdinalNumber(11)).toBe("11th");
-  expect(getOrdinalNumber(12)).toBe("12th");
-  expect(getOrdinalNumber(13)).toBe("13th");
+// Case 3: Numbers ending in 3 (but not 13)
+test("append 'rd' to numbers ending in 3, except those ending in 13", () => {
+  expect(getOrdinalNumber(3)).toEqual("3rd");
+  expect(getOrdinalNumber(23)).toEqual("23rd");
+  expect(getOrdinalNumber(103)).toEqual("103rd");
+  expect(getOrdinalNumber(113)).toEqual("113th"); // exception
 });
-test("should return correct ordinal for numbers > 20", () => {
-  expect(getOrdinalNumber(21)).toBe("21st");
-  expect(getOrdinalNumber(22)).toBe("22nd");
-  expect(getOrdinalNumber(23)).toBe("23rd");    
-});
+// Case 4: Numbers ending in 4–9 or exceptions (11, 12, 13)
+test("append 'th' to numbers ending in 4–9 or ending with 11, 12, or 13", () => {
+  expect(getOrdinalNumber(4)).toEqual("4th");
+  expect(getOrdinalNumber(9)).toEqual("9th");
+  expect(getOrdinalNumber(11)).toEqual("11th");
+  expect(getOrdinalNumber(12)).toEqual("12th");
+  expect(getOrdinalNumber(13)).toEqual("13th");
+});
+  // Optional: edge cases
+  test("should handle 0 and large numbers correctly", () => {
+    expect(getOrdinalNumber(0)).toBe("0th");
+    expect(getOrdinalNumber(1000001)).toBe("1000001st"); // ends with 1, not teen
+    expect(getOrdinalNumber(1000012)).toBe("1000012th"); // ends with 12 -> teen
+  
+  });
+
+
+