create tests for rotate-matrix and dragon-curve done rorate-matrix

.babelrc

@@ -0,0 +1,3 @@
+{
+    "presets": ["env"]
+  }

.travis.yml

@@ -0,0 +1,3 @@
+language: node_js
+node_js:
+  - "lts/*"

package.json

@@ -23,6 +23,10 @@
   },
   "homepage": "https://github.com/front-camp-2018/project-scaffoldings#readme",
   "devDependencies": {
+    "babel-cli": "^6.26.0",
+    "babel-core": "^6.26.3",
+    "babel-jest": "^23.6.0",
+    "babel-preset-env": "^1.7.0",
     "css-loader": "^1.0.0",
     "eslint": "^5.6.1",
     "eslint-plugin-jest": "^21.25.1",

src/dragon-curve/index.js

@@ -1,3 +1,4 @@
 export const dragonCurve = n => {
-  // logic...
+
+  return n;
 };

src/dragon-curve/index.spec.js

@@ -1,5 +1,11 @@
-import {dragonCurve} from './index'
+import {dragonCurve} from './index';
 
 describe('dragonCurve::', () => {
-  // need to implement
+
+  it('Should return corect code ', () => {
+    expect(dragonCurve(1)).toEqual(1);
+    // expect(dragonCurve(2)).toEqual(110);
+    // expect(dragonCurve(3)).toEqual(1101100);
+    // expect(dragonCurve(4)).toEqual(110110011100100);
+  });
 });

src/rotate-matrix/index.js

@@ -1,4 +1,5 @@
 export const rotateMatrix = arr => {
-  // logic...
+  return arr.map((row, i) => row.map((column, j) => arr[j][i]));
+
 };
 

src/rotate-matrix/index.spec.js

@@ -1,5 +1,24 @@
-import {rotateMatrix} from './index'
+import {rotateMatrix} from './index';
 
 describe('rotateMatrix::', () => {
-  // need to implement
+  it('Should rotate matrix', () => {
+    expect(rotateMatrix([
+      [1, 2],
+      [3, 4]
+    ])).toEqual([
+      [1,3],
+      [2,4]
+    ]);
+  });
+  it('Should rotate matrix', () => {
+    expect(rotateMatrix([
+      [1, 2, 3],
+      [4, 5, 6],
+      [7, 8, 9]
+    ])).toEqual([
+      [1,4,7],
+      [2,5,8],
+      [3,6,9]
+    ]);
+  });
 });