diff --git a/src/getHumanAge.test.js b/src/getHumanAge.test.js
index 6ce3e586..41a9f94a 100644
--- a/src/getHumanAge.test.js
+++ b/src/getHumanAge.test.js
@@ -1,3 +1,4 @@
+/* eslint-disable max-len */
 'use strict';
 
 describe('getHumanAge', () => {
@@ -7,4 +8,53 @@ describe('getHumanAge', () => {
     expect(getHumanAge)
       .toBeInstanceOf(Function);
   });
+
+  test('if catAge & dogAge is zero, should return [0, 0] ', () => {
+    const result = getHumanAge(0, 0);
+
+    expect(result).toEqual([0, 0]);
+  });
+
+  test('if catAge & dogAge is less than 15, should return [0, 0] ', () => {
+    const result = getHumanAge(14, 14);
+
+    expect(result).toEqual([0, 0]);
+  });
+
+  test('if catAge & dogAge is 15, should return [1, 1] ', () => {
+    const result = getHumanAge(15, 15);
+
+    expect(result).toEqual([1, 1]);
+  });
+
+  test('if catAge & dogAge is more than 15 but less than 24, should return [1, 1]',
+    () => {
+      const result = getHumanAge(23, 23);
+
+      expect(result).toEqual([1, 1]);
+    });
+
+  test('if catAge & dogAge is 24, should return [2, 2]', () => {
+    const result = getHumanAge(24, 24);
+
+    expect(result).toEqual([2, 2]);
+  });
+
+  test('if catAge & dogAge is 27, should return [2, 2]', () => {
+    const result = getHumanAge(27, 27);
+
+    expect(result).toEqual([2, 2]);
+  });
+
+  test('if catAge & dogAge is 28, should return [3, 2]', () => {
+    const result = getHumanAge(28, 28);
+
+    expect(result).toEqual([3, 2]);
+  });
+
+  test('if catAge & dogAge is 100, should return [21, 17]', () => {
+    const result = getHumanAge(100, 100);
+
+    expect(result).toEqual([21, 17]);
+  });
 });