Update example test

tests/Feature/ExampleTest.php

@@ -8,12 +8,29 @@
 class ExampleTest extends TestCase
 {
     /**
-     * A basic test example.
+     * Test the root route ("/") returns a successful response.
      */
-    public function test_the_application_returns_a_successful_response(): void
+    public function test_the_root_route_returns_a_successful_response(): void
     {
         $response = $this->get('/');
+        $response->assertStatus(200);
+    }
 
+    /**
+     * Test the "/app" route returns a successful response.
+     */
+    public function test_the_app_route_returns_a_successful_response(): void
+    {
+        $response = $this->get('/app');
+        $response->assertStatus(200);
+    }
+
+    /**
+     * Test the "/admin" route returns a successful response.
+     */
+    public function test_the_admin_route_returns_a_successful_response(): void
+    {
+        $response = $this->get('/admin');
         $response->assertStatus(200);
     }
 }