Codacy style changes for test files

test/mapObject/mapObject.js

@@ -1,5 +1,6 @@
 const mapObject = (arr, fn) =>
-(a => (
-(a = [arr, arr.map(fn)]), a[0].reduce((acc, val, ind) => ((acc[val] = a[1][ind]), acc), {})
-))();
+  (a => (
+    (a = [arr, arr.map(fn)]), a[0].reduce((acc, val, ind) => ((acc[val] = a[1][ind]), acc), {})
+  ))();
+
 module.exports = mapObject;