From 54ae7387620739e4dc9f8e720b6250d9e30005f1 Mon Sep 17 00:00:00 2001
From: Ruidy <r.nemausat@empfohlen.de>
Date: Fri, 19 Feb 2021 13:45:06 +0100
Subject: [PATCH] random hello

---
 src/index.test.ts |  7 ++++---
 src/index.ts      | 18 ++++++++++++------
 2 files changed, 16 insertions(+), 9 deletions(-)

diff --git a/src/index.test.ts b/src/index.test.ts
index ee939ba..341d2e9 100644
--- a/src/index.test.ts
+++ b/src/index.test.ts
@@ -2,13 +2,14 @@ import {
   assertStrictEquals,
   assertThrows,
 } from "https://deno.land/std@0.87.0/testing/asserts.ts";
-import { sayHello } from "./index.ts";
+import { sayHello, sayRandomHello } from "./index.ts";
 import { ValidationError } from "./validation.ts";
 import { localesSize } from "./repository/locales.ts";
 
 Deno.test("Hello test", () => {
-  const actual = sayHello();
-  const expected = "Hello, World!";
+  const result = sayRandomHello();
+  const actual = typeof result;
+  const expected = "string";
   assertStrictEquals(actual, expected);
 });
 
diff --git a/src/index.ts b/src/index.ts
index 87281b8..c4f9613 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,13 +1,19 @@
 import { idIsValid, ValidationError } from "./validation.ts";
-import { getLocaleById } from "./repository/locales.ts";
+import { getLocaleById, localesSize } from "./repository/locales.ts";
 
 /**
- * Display the iconic Hello, World
+ * Display the iconic Hello, World in a random locale
  */
-export const sayHello = (id?: number) => {
-  if (!id) {
-    return;
-  }
+export const sayRandomHello = () => {
+  const id = Math.ceil(Math.random() * localesSize);
+  return sayHello(id);
+};
+
+/**
+ * Display the iconic Hello, World in a locale identified by id
+ * @param id Unique identifier
+ */
+export const sayHello = (id: number): string => {
   if (!idIsValid(id)) {
     throw new ValidationError(`Invalid index: ${id}`);
   }