add more tests (#26)

* added more tests

* (fix) no cpu profile.

functions/Random.js

@@ -1,13 +1,14 @@
-const Random = {int, use};
+const Random = { int, use };
 
-function int (min, max) {
-        if (!min || !max) { return; }
-        //return Math.floor(Math.random() * (Math.floor(max) - Math.ceil(min))) + min;
-        return Math.floor(Math.random() * (Math.floor(max) - Math.ceil(min) + 1)) + min;
+function int(min, max) {
+    if (!min || !max) {
+        return;
     }
+    return Math.floor(Math.random() * (Math.floor(max) - Math.ceil(min) + 1)) + min;
+}
 
-function use (str) {
+function use(str) {
     return true;
 }
 
-module.exports = { Random };
+module.exports = { Random };