tests created for folderAssets function

relates #8

src/utils.js

@@ -0,0 +1,9 @@
+const fs = require('fs');
+
+const folderContents = () => {
+
+};
+
+module.exports = {
+  folderContents,
+};

tests/test.js

@@ -1,6 +1,7 @@
 const test = require('tape');
 const supertest = require('supertest');
 const router = require('../src/router.js');
+const utils = require('../src/utils.js');
 
 test('check home status code is 200', (t) => {
   supertest(router)
@@ -34,3 +35,16 @@ test('check home app.js status code is 200', (t) => {
       t.end(err);
     });
 });
+
+test('Check that assetsContents function is a pure function that returns array of objects', (t) => {
+  const folder = '../tests';
+  const folderCheck = folder;
+  const actual = utils.folderContents(folder);
+  const expected = [{
+    name: 'tests.js',
+    filepath: '/Users/samjam/Code/founders-and-coders/course/5-node-advanced/make-notes-project/tests/test.js',
+  }];
+  t.deepEqual(actual, expected, 'returns array of correct objects');
+  t.deepEqual(folder, folderCheck, 'does not mutate arguments passed to it');
+  t.deepEqual(actual, expected, 'returns same result given same arguments');
+});