[10.x] Introducing isEmpty and isNotEmpty to `ComponentAttributeB…

…ag` (#49408)

* code

* formatting

---------

Co-authored-by: Taylor Otwell <taylor@laravel.com>

src/Illuminate/View/ComponentAttributeBag.php

@@ -350,6 +350,26 @@ protected function resolveAppendableAttributeDefault($attributeDefaults, $key, $
         return $value;
     }
 
+    /**
+     * Determine if the attribute bag is empty.
+     *
+     * @return bool
+     */
+    public function isEmpty()
+    {
+        return trim((string) $this) === '';
+    }
+
+    /**
+     * Determine if the attribute bag is not empty.
+     *
+     * @return bool
+     */
+    public function isNotEmpty()
+    {
+        return ! $this->isEmpty();
+    }
+
     /**
      * Get all of the raw attributes.
      *

tests/View/ViewComponentAttributeBagTest.php

@@ -128,4 +128,18 @@ public function testAttributeExistence()
         $this->assertFalse((bool) $bag->has('name', 'class'));
         $this->assertTrue((bool) $bag->missing('class'));
     }
+
+    public function testAttributeIsEmpty()
+    {
+        $bag = new ComponentAttributeBag([]);
+
+        $this->assertTrue((bool) $bag->isEmpty());
+    }
+
+    public function testAttributeIsNotEmpty()
+    {
+        $bag = new ComponentAttributeBag(['name' => 'test']);
+
+        $this->assertTrue((bool) $bag->isNotEmpty());
+    }
 }