Codacy style changes for test files

test/uniqueElementsBy/uniqueElementsBy.js

@@ -1,6 +1,7 @@
 const uniqueElementsBy = (arr, fn) =>
-arr.reduce((acc, v) => {
-if (!acc.some(x => fn(v, x))) acc.push(v);
-return acc;
-}, []);
+  arr.reduce((acc, v) => {
+    if (!acc.some(x => fn(v, x))) acc.push(v);
+    return acc;
+  }, []);
+
 module.exports = uniqueElementsBy;