Handle asset not having location

app/View/Label.php

@@ -140,7 +140,9 @@ class Label implements View
                                 $barcode2DTarget = $asset->serial; 
                                 break;
                             case 'location':
-                                $barcode2DTarget = route('locations.show', $asset->location_id);
+                                $barcode2DTarget = $asset->location_id
+                                    ? route('locations.show', $asset->location_id)
+                                    : null;
                                 break;
                             case 'hardware_id':
                             default:

tests/Unit/Labels/LabelTest.php

@@ -3,6 +3,7 @@
 namespace Tests\Unit\Labels;
 
 use App\Models\Asset;
+use App\Models\Location;
 use App\Models\Setting;
 use App\View\Label;
 use Tests\TestCase;
@@ -20,16 +21,19 @@ class LabelTest extends TestCase
             'label2_2d_target' => 'location',
         ]);
 
-        $asset = Asset::factory()->create(['location_id' => null]);
+        $location = Location::factory()->create();
+        $assets = Asset::factory()->count(2)->create(['location_id' => $location->id]);
+        $assets->first()->update(['location_id' => null]);
 
         // pulled from BulkAssetsController@edit method
         $label = (new Label)
-            // receives eloquent collection in practice
-            ->with('assets', Asset::findMany($asset->id))
+            ->with('assets', $assets)
             ->with('settings', Setting::getSettings())
             ->with('bulkedit', true)
             ->with('count', 0);
 
         $label->render();
+
+        $this->assertTrue(true, 'Label rendering should not throw an error when location is not set on an asset.');
     }
 }