style: fix code style.

test/runTest/blacklist.js

 module.exports = [
     '-cases.html',
     'geo-random-stream.html'
-];
\ No newline at end of file
+];

test/runTest/compareScreenshot.js

@@ -38,4 +38,4 @@ module.exports = function (expectedShotPath, actualShotPath, threshold = 0.1) {
             diffPNG
         };
     });
-};
\ No newline at end of file
+};

test/runTest/runtime/main.js

@@ -18,9 +18,9 @@ import lolex from 'lolex';
 // // Fixed date
 // window.Date = MockDate;
 
-export function createScreenshotTest (desc, elementQuery, waitTime) {
+// export function createScreenshotTest (desc, elementQuery, waitTime) {
 
-}
+// };
 
 /**
  * Take screenshot immediately.