diff --git a/app/JsonApi/Schemas/GoalSchema.php b/app/JsonApi/Schemas/GoalSchema.php
index 8a7c482..f2bd9ec 100644
--- a/app/JsonApi/Schemas/GoalSchema.php
+++ b/app/JsonApi/Schemas/GoalSchema.php
@@ -25,6 +25,7 @@ class GoalSchema extends SchemaProvider
      */
     public function getAttributes($resource): array
     {
+        /** @var \App\Models\Goal $resource */
         return [
             'name' => $resource->name,
             'days' => $resource->days,
diff --git a/tests/Feature/Http/Controllers/GoalControllerTest.php b/tests/Feature/Http/Controllers/GoalControllerTest.php
index 8768912..350ef1f 100644
--- a/tests/Feature/Http/Controllers/GoalControllerTest.php
+++ b/tests/Feature/Http/Controllers/GoalControllerTest.php
@@ -41,4 +41,39 @@ class GoalControllerTest extends HttpControllerTestCase
         return $this->factory()->for($this->user)->create();
     }
 
+    /**
+     * @inheritdoc
+     */
+    public function testCanAddInstance(): void
+    {
+        $create_url = action([$this->class(), 'create']);
+        $response = $this->get($create_url);
+        $response->assertOk();
+
+        $data = $this->factory()->makeOne()->toArray();
+        $data['days'] = Goal::days()->pluck('value')->random(3)->toArray();
+
+        $store_url = action([$this->class(), 'store']);
+        $response = $this->post($store_url, $data);
+        $response->assertSessionHasNoErrors();
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function testCanEditInstance(): void
+    {
+        $instance = $this->createInstance();
+        $edit_url = action([$this->class(), 'edit'], [$this->routeKey() => $instance]);
+        $response = $this->get($edit_url);
+        $response->assertOk();
+
+        $data = $this->factory()->makeOne()->toArray();
+        $data['days'] = Goal::days()->pluck('value')->random(3)->toArray();
+
+        $put_url = action([$this->class(), 'update'], [$this->routeKey() => $instance]);
+        $response = $this->put($put_url, $data);
+        $response->assertSessionHasNoErrors();
+    }
+
 }