Added test for create lazing using callback

Author: Fa-BRAIK

tests/Unit/Concerns/LazyDataTest.php

@@ -35,6 +35,23 @@ public function will_create_lazy_instance(): void
         self::assertEquals('John Doe', $person->fullName);
     }
 
+    /**
+     * @throws Throwable
+     */
+    #[Test]
+    public function will_create_lazy_instance_using_callback(): void
+    {
+        $person = PersonData::createLazyUsing(
+            static fn () => PersonData::create(
+                firstName: 'John',
+                lastName: 'Doe'
+            )
+        );
+
+        self::assertInstanceOf(PersonData::class, $person);
+        self::assertEquals('John Doe', $person->fullName);
+    }
+
     /**
      * @throws Throwable
      */