Assert Published

When you want to assert that a message was published into kafka, you can make use of the assertPublished method:

use Junges\Kafka\Facades\Kafka;
use PHPUnit\Framework\TestCase;

class MyTest extends TestCase
{
     public function testMyAwesomeApp()
     {
         Kafka::fake();
         
         $producer = Kafka::publish('broker')
             ->onTopic('topic')
             ->withHeaders(['key' => 'value'])
             ->withBodyKey('foo', 'bar');
             
         $producer->send();
             
         Kafka::assertPublished($producer->getMessage());       
     }
}

You can also use assertPublished without passing the message argument:

use Junges\Kafka\Facades\Kafka;
use PHPUnit\Framework\TestCase;

class MyTest extends TestCase
{
     public function testMyAwesomeApp()
     {
         Kafka::fake();
         
         Kafka::publish('broker')
             ->onTopic('topic')
             ->withHeaders(['key' => 'value'])
             ->withBodyKey('foo', 'bar');
             
             
         Kafka::assertPublished();       
     }
}
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