Codacy style changes for test files

test/factorial/factorial.js

@@ -1,9 +1,10 @@
 const factorial = n =>
-n < 0
-? (() => {
-throw new TypeError('Negative numbers are not allowed!');
-})()
-: n <= 1
-? 1
-: n * factorial(n - 1);
+  n < 0
+    ? (() => {
+        throw new TypeError('Negative numbers are not allowed!');
+      })()
+    : n <= 1
+      ? 1
+      : n * factorial(n - 1);
+
 module.exports = factorial;