Codacy style changes for test files

test/stableSort/stableSort.js

@@ -1,6 +1,7 @@
 const stableSort = (arr, compare) =>
-arr
-.map((item, index) => ({ item, index }))
-.sort((a, b) => compare(a.item, b.item) || a.index - b.index)
-.map(({ item }) => item);
+  arr
+    .map((item, index) => ({ item, index }))
+    .sort((a, b) => compare(a.item, b.item) || a.index - b.index)
+    .map(({ item }) => item);
+
 module.exports = stableSort;