Develop

package.json

@@ -9,7 +9,7 @@
     "test:only": "mate-scripts test",
     "update": "mate-scripts update",
     "postinstall": "npm run update",
-    "test": "npm run lint && npm run test:only"
+    "test": "jest"
   },
   "author": "Mate academy",
   "license": "GPL-3.0",
@@ -19,7 +19,7 @@
     "eslint": "^5.16.0",
     "eslint-plugin-jest": "^22.4.1",
     "eslint-plugin-node": "^8.0.1",
-    "jest": "^24.5.0"
+    "jest": "^24.9.0"
   },
   "mateAcademy": {
     "projectType": "javascript"

src/splitInteger.test.js

@@ -4,18 +4,91 @@ const splitInteger = require('./splitInteger');
 
 test(`should split a number into equal parts
   if a value is divisible by a numberOfParts`, () => {
+  const res = splitInteger(8, 4);
 
+  expect(res).toEqual([2, 2, 2, 2]);
+  expect(res).toHaveLength(4);
+  expect(res.reduce((a, b) => a + b, 0)).toBe(8);
+  expect(res.every(Number.isInteger)).toBe(true);
+  expect(res).toEqual(res.slice().sort((a, b) => a - b));
+  expect(Math.max(...res) - Math.min(...res)).toBeLessThanOrEqual(1);
 });
 
 test(`should return a part equals to a value
   when splitting into 1 part`, () => {
+  const res = splitInteger(8, 1);
 
+  expect(res).toEqual([8]);
+  expect(res).toHaveLength(1);
+  expect(res.reduce((a, b) => a + b, 0)).toBe(8);
+  expect(res.every(Number.isInteger)).toBe(true);
+  expect(res).toEqual(res.slice().sort((a, b) => a - b));
+  expect(Math.max(...res) - Math.min(...res)).toBeLessThanOrEqual(1);
 });
 
 test('should sort parts ascending if they are not equal', () => {
+  const res = splitInteger(10, 3);
 
+  expect(res).toEqual([3, 3, 4]);
+  expect(res).toHaveLength(3);
+  expect(res.reduce((a, b) => a + b, 0)).toBe(10);
+  expect(res.every(Number.isInteger)).toBe(true);
+  expect(res).toEqual(res.slice().sort((a, b) => a - b));
+  expect(Math.max(...res) - Math.min(...res)).toBeLessThanOrEqual(1);
 });
 
 test('should add zeros if value < numberOfParts', () => {
+  const res = splitInteger(3, 5);
 
+  expect(res).toEqual([0, 0, 1, 1, 1]);
+  expect(res).toHaveLength(5);
+  expect(res.reduce((a, b) => a + b, 0)).toBe(3);
+  expect(res.every(Number.isInteger)).toBe(true);
+  expect(res).toEqual(res.slice().sort((a, b) => a - b));
+  expect(Math.max(...res) - Math.min(...res)).toBeLessThanOrEqual(1);
+});
+
+// 🔹 Додаткові приклади з опису завдання
+test('should split 6 into 2 equal parts', () => {
+  const res = splitInteger(6, 2);
+
+  expect(res).toEqual([3, 3]);
+  expect(res).toHaveLength(2);
+  expect(res.reduce((a, b) => a + b, 0)).toBe(6);
+  expect(res.every(Number.isInteger)).toBe(true);
+  expect(res).toEqual(res.slice().sort((a, b) => a - b));
+  expect(Math.max(...res) - Math.min(...res)).toBeLessThanOrEqual(1);
+});
+
+test('should split 17 into 4 nearly equal parts', () => {
+  const res = splitInteger(17, 4);
+
+  expect(res).toEqual([4, 4, 4, 5]);
+  expect(res).toHaveLength(4);
+  expect(res.reduce((a, b) => a + b, 0)).toBe(17);
+  expect(res.every(Number.isInteger)).toBe(true);
+  expect(res).toEqual(res.slice().sort((a, b) => a - b));
+  expect(Math.max(...res) - Math.min(...res)).toBeLessThanOrEqual(1);
+});
+
+test('should split 32 into 6 nearly equal parts', () => {
+  const res = splitInteger(32, 6);
+
+  expect(res).toEqual([5, 5, 5, 5, 6, 6]);
+  expect(res).toHaveLength(6);
+  expect(res.reduce((a, b) => a + b, 0)).toBe(32);
+  expect(res.every(Number.isInteger)).toBe(true);
+  expect(res).toEqual(res.slice().sort((a, b) => a - b));
+  expect(Math.max(...res) - Math.min(...res)).toBeLessThanOrEqual(1);
+});
+
+test('should split when value equals numberOfParts', () => {
+  const res = splitInteger(5, 5);
+
+  expect(res).toEqual([1, 1, 1, 1, 1]);
+  expect(res).toHaveLength(5);
+  expect(res.reduce((a, b) => a + b, 0)).toBe(5);
+  expect(res.every(Number.isInteger)).toBe(true);
+  expect(res).toEqual(res.slice().sort((a, b) => a - b));
+  expect(Math.max(...res) - Math.min(...res)).toBeLessThanOrEqual(1);
 });