Solution

src/getHumanAge.test.js

@@ -7,4 +7,28 @@ describe('getHumanAge', () => {
     expect(getHumanAge)
       .toBeInstanceOf(Function);
   });
+
+  test('should return [0, 0] if CatAge = 0 and DogAge = 0', () => {
+    expect(getHumanAge(0, 0)).toEqual([0, 0]);
+  });
+
+  test('should return [0, 0] if CatAge and DogAge < 14', () => {
+    expect(getHumanAge(14, 14)).toEqual([0, 0]);
+  });
+
+  test('should return [1, 1] if CatAge and DogAge === 15', () => {
+    expect(getHumanAge(15, 15)).toEqual([1, 1]);
+  });
+
+  test('should return [2, 2] for catAge = 24 and dogAge = 24', () => {
+    expect(getHumanAge(24, 24)).toEqual([2, 2]);
+  });
+
+  test('should return [4, 3] for catAge = 32 and dogAge = 32', () => {
+    expect(getHumanAge(32, 32)).toEqual([4, 3]);
+  });
+
+  test('should return [21, 17] for catAge = 100 and dogAge = 100', () => {
+    expect(getHumanAge(100, 100)).toEqual([21, 17]);
+  });
 });