diff --git a/ex01/hello_world.sh b/ex01/hello_world.sh
new file mode 100644
index 0000000..38e1002
--- /dev/null
+++ b/ex01/hello_world.sh
@@ -0,0 +1,7 @@
+function hello_world()
+{
+    val='Hello, World!'
+}
+
+hello_world
+echo $val
diff --git a/ex01/hello_world_test.sh b/ex01/hello_world_test.sh
index bc6946b..c2d05f4 100644
--- a/ex01/hello_world_test.sh
+++ b/ex01/hello_world_test.sh
@@ -20,3 +20,10 @@
   [ "$status" -eq 0 ]
   [ "$output" = "Hello, Bob!" ]
 }
+
+@test 'Check called it should print Hello, World!' {
+  run bash hello_world.sh
+
+  [ "$status" -eq 0 ]
+  [ "$output" = "Hello, World!" ]
+}