Solution

src/getHumanAge.test.js

@@ -7,4 +7,44 @@ describe('getHumanAge', () => {
     expect(getHumanAge)
       .toBeInstanceOf(Function);
   });
+
+  test('should return [0, 0] when cat and dog ages are 0', () => {
+    expect(getHumanAge(0, 0))
+      .toEqual([0, 0]);
+  });
+
+  test('should return [0, 0] when cat and dog ages are 14', () => {
+    expect(getHumanAge(14, 14))
+      .toEqual([0, 0]);
+  });
+
+  test('should return [1, 1] when cat and dog ages are 15', () => {
+    expect(getHumanAge(15, 15))
+      .toEqual([1, 1]);
+  });
+
+  test('should return [1, 1] when cat and dog ages are 23', () => {
+    expect(getHumanAge(23, 23))
+      .toEqual([1, 1]);
+  });
+
+  test('should return [2, 2] when cat and dog ages are 24', () => {
+    expect(getHumanAge(24, 24))
+      .toEqual([2, 2]);
+  });
+
+  test('should return [2, 2] when cat and dog ages are 27', () => {
+    expect(getHumanAge(27, 27))
+      .toEqual([2, 2]);
+  });
+
+  test('should return [3, 2] when cat and dog ages are 28', () => {
+    expect(getHumanAge(28, 28))
+      .toEqual([3, 2]);
+  });
+
+  test('should return [21, 17] when cat and dog ages are 100', () => {
+    expect(getHumanAge(100, 100))
+      .toEqual([21, 17]);
+  });
 });