Merge pull request #15584 from Mrkbingham/repeater-action-test-doc-up…

…date

Docs: Add repeater action item testing documentation

packages/forms/docs/03-fields/12-repeater.md

@@ -742,3 +742,23 @@ livewire(EditPost::class, ['record' => $post])
 
 $undoRepeaterFake();
 ```
+
+### Testing repeater actions
+
+In order to test that repeater actions are working as expected, you can utilize the `callFormComponentAction()` method to call your repeater actions and then [perform additional assertions](../testing#actions).
+
+To interact with an action on a particular repeater item, you need to pass in the `item` argument with the key of that repeater item. If your repeater is reading from a relationship, you should prefix the ID (key) of the related record with `record-` to form the key of the repeater item:  
+
+```php
+use App\Models\Quote;
+use Filament\Forms\Components\Repeater;
+use function Pest\Livewire\livewire;
+
+$quote = Quote::first();
+
+livewire(EditPost::class, ['record' => $post])
+    ->callFormComponentAction('quotes', 'sendQuote', arguments: [
+        'item' => "record-{$quote->getKey()}",
+    ])
+    ->assertNotified('Quote sent!');
+```