Fix linting errors

Author: brafdlog

src/__tests__/ChartTests.js

@@ -1,4 +1,4 @@
-import ChartComponent from "../Chart";
+import ChartComponent from '../Chart';
 
 describe('Chart re-rendering', () => {
 
@@ -16,33 +16,33 @@ describe('Chart re-rendering', () => {
 
     it('required when data is changed in an inner object/array of the data', () => {
         const originalData = {
-            "data": {
-                "datasets": [
+            'data': {
+                'datasets': [
                     {
-                        "data": [
+                        'data': [
                           122968
                         ]
                     },
                     {
-                        "data": [
+                        'data': [
                           14738
                         ]
                     }
                 ]
             }
-        }
+        };
         // The new data has only one data set instead of two
         const newData = {
-            "data": {
-                "datasets": [
+            'data': {
+                'datasets': [
                     {
-                        "data": [
+                        'data': [
                           122968
                         ]
                     }
                 ]
             }
-        }
+        };
         const chart = new ChartComponent(originalData);
         const updateRequired = chart.shouldComponentUpdate(newData);
         expect(updateRequired).toBeTruthy();