diff --git a/package-lock.json b/package-lock.json
index 33b23f7f..9dc71fde 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -15,7 +15,7 @@
         "eslint": "^8.57.0",
         "eslint-plugin-jest": "^22.4.1",
         "eslint-plugin-node": "^8.0.1",
-        "jest": "^24.5.0",
+        "jest": "^24.9.0",
         "prettier": "^3.3.2"
       }
     },
@@ -5651,6 +5651,7 @@
       "resolved": "https://registry.npmjs.org/jest/-/jest-24.9.0.tgz",
       "integrity": "sha512-YvkBL1Zm7d2B1+h5fHEOdyjCG+sGMz4f8D86/0HiqJ6MB4MnDc8FgP5vdWsGnemOQro7lnYo8UakZ3+5A0jxGw==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
         "import-local": "^2.0.0",
         "jest-cli": "^24.9.0"
diff --git a/package.json b/package.json
index 068403cd..69ecb9af 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "eslint": "^8.57.0",
     "eslint-plugin-jest": "^22.4.1",
     "eslint-plugin-node": "^8.0.1",
-    "jest": "^24.5.0",
+    "jest": "^24.9.0",
     "prettier": "^3.3.2"
   },
   "mateAcademy": {
diff --git a/src/splitInteger.test.js b/src/splitInteger.test.js
index 24003dd5..3a8abc7e 100644
--- a/src/splitInteger.test.js
+++ b/src/splitInteger.test.js
@@ -3,11 +3,51 @@
 const splitInteger = require('./splitInteger');
 
 test(`should split a number into equal parts
-  if a value is divisible by a numberOfParts`, () => {});
+  if a value is divisible by a numberOfParts`, () => {
+  const result = splitInteger(12, 3);
+
+  expect(result).toEqual([4, 4, 4]);
+});
 
 test(`should return a part equals to a value
-  when splitting into 1 part`, () => {});
+  when splitting into 1 part`, () => {
+  const result = splitInteger(10, 1);
+
+  expect(result).toEqual([10]);
+});
+
+test('should sort parts ascending if they are not equal', () => {
+  const result = splitInteger(10, 3);
+
+  expect(result).toEqual([3, 3, 4]);
+});
+
+test('should add zeros if value < numberOfParts', () => {
+  const result = splitInteger(3, 10);
+
+  expect(result).toEqual([0, 0, 0, 0, 0, 0, 0, 1, 1, 1]);
+});
+
+test('should return the value when splitting into 1 part', () => {
+  const result = splitInteger(8, 1);
+
+  expect(result).toEqual([8]);
+});
+
+test('should split a number into equal parts', () => {
+  const result = splitInteger(6, 2);
+
+  expect(result).toEqual([3, 3]);
+});
+
+test('should split into ascending parts when the result is not equal', () => {
+  const result = splitInteger(17, 4);
+
+  expect(result).toEqual([4, 4, 4, 5]);
+});
 
-test('should sort parts ascending if they are not equal', () => {});
+test('should distribute the remainder between several parts', () => {
+  const result = splitInteger(32, 6);
 
-test('should add zeros if value < numberOfParts', () => {});
+  expect(result).toEqual([5, 5, 5, 5, 6, 6]);
+});