[10.x] Make DynamoDB failed job provider countable

src/Illuminate/Queue/Failed/DynamoDbFailedJobProvider.php

@@ -3,12 +3,13 @@
 namespace Illuminate\Queue\Failed;
 
 use Aws\DynamoDb\DynamoDbClient;
+use Countable;
 use DateTimeInterface;
 use Exception;
 use Illuminate\Support\Carbon;
 use Illuminate\Support\Facades\Date;
 
-class DynamoDbFailedJobProvider implements FailedJobProviderInterface
+class DynamoDbFailedJobProvider implements FailedJobProviderInterface, Countable
 {
     /**
      * The DynamoDB client instance.
@@ -162,6 +163,16 @@ public function forget($id)
         return true;
     }
 
+    /**
+     * Count the failed jobs.
+     */
+    public function count(): int
+    {
+        return $this->dynamo->describeTable([
+            'TableName' => $this->table,
+        ])['Table']['ItemCount'];
+    }
+
     /**
      * Flush all of the failed jobs from storage.
      *

tests/Queue/DynamoDbFailedJobProviderTest.php

@@ -175,4 +175,19 @@ public function testJobsCanBeDeleted()
 
         $provider->forget('id');
     }
+
+    public function testJobsCanBeCounted()
+    {
+        $dynamoDbClient = m::mock(DynamoDbClient::class);
+        $dynamoDbClient->shouldReceive('describeTable')->once()->with([
+            'TableName' => 'table',
+        ])->andReturn([
+            'Table' => [
+                'ItemCount' => 5,
+            ],
+        ]);
+        $provider = new DynamoDbFailedJobProvider($dynamoDbClient, 'application', 'table');
+
+        $this->assertCount(5, $provider);
+    }
 }