chore(Walk): Lint and test fix

api/app/components/Img/test/index.jest.jsx

@@ -1,3 +1,5 @@
+/* global describe, expect, shallow, test */
+
 import React from 'react';
 
 import Img from '../index';

api/app/components/ThumbImg/test/index.jest.jsx

@@ -1,3 +1,5 @@
+/* global describe, expect, shallow, test */
+
 import React from 'react';
 
 import Img from '../index';

api/server/plugins/walk/test/files.jest.js

@@ -3,21 +3,22 @@
 const { listFiles } = require('../lib/files');
 
 describe('Walk API', () => {
+  function matchFile(expect, file) {
+    expect(file.filename).toEqual('P1160066.JPG');
+    expect(file.ext).toEqual('JPG');
+    expect(file.mediumType).toEqual('image');
+    expect(file.name).toEqual('P1160066');
+  }
+
   test('Read files in folder', async () => {
     const { files } = await listFiles('test/fixtures/walkable');
-    expect(files[1].filename).toEqual('P1160066.JPG');
-    expect(files[1].ext).toEqual('JPG');
-    expect(files[1].mediumType).toEqual('image');
-    expect(files[1].name).toEqual('P1160066');
+    matchFile(expect, files[1]);
     expect(files.length).toEqual(3);
   });
 
   test('Read files in folder (w/ space)', async () => {
     const { files } = await listFiles('test/fixtures/walk%20able');
-    expect(files[0].filename).toEqual('P1160066.JPG');
-    expect(files[0].ext).toEqual('JPG');
-    expect(files[0].mediumType).toEqual('image');
-    expect(files[0].name).toEqual('P1160066');
+    matchFile(expect, files[0]);
     expect(files.length).toEqual(1);
   });
 });