Codacy style changes for test files

test/permutations/permutations.js

@@ -1,11 +1,12 @@
 const permutations = arr => {
-if (arr.length <= 2) return arr.length === 2 ? [arr, [arr[1], arr[0]]] : arr;
-return arr.reduce(
-(acc, item, i) =>
-acc.concat(
-permutations([...arr.slice(0, i), ...arr.slice(i + 1)]).map(val => [item, ...val])
-),
-[]
-);
+  if (arr.length <= 2) return arr.length === 2 ? [arr, [arr[1], arr[0]]] : arr;
+  return arr.reduce(
+    (acc, item, i) =>
+      acc.concat(
+        permutations([...arr.slice(0, i), ...arr.slice(i + 1)]).map(val => [item, ...val])
+      ),
+    []
+  );
 };
+
 module.exports = permutations;