Added DELETE conversation api method

src/Api/Conversation.php

@@ -156,4 +156,18 @@ public function postUserMessage(string $conversationId, string $sender, string $
 
         return $this->hydrator->hydrate($response, Model\Conversation\MessageCreated::class);
     }
+
+    /**
+     * @throws Exception
+     */
+    public function delete(string $conversationId): Model\Conversation\MessageDeleted
+    {
+        $response = $this->httpDelete("conversations/$conversationId");
+
+        if (200 !== $response->getStatusCode()) {
+            $this->handleErrors($response);
+        }
+
+        return $this->hydrator->hydrate($response, Model\Conversation\MessageDeleted::class);
+    }
 }

src/Model/Conversation/MessageDeleted.php

@@ -0,0 +1,9 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shapin\TalkJS\Model\Conversation;
+
+class MessageDeleted
+{
+}

tests/FunctionalTests/ConversationTest.php

@@ -9,6 +9,7 @@
 
 namespace Shapin\TalkJS\Tests\FunctionalTests;
 
+use Shapin\TalkJS\Exception\Domain\NotFoundException;
 use Shapin\TalkJS\Model\Conversation\Conversation;
 use Shapin\TalkJS\Model\Conversation\ConversationCollection;
 use Shapin\TalkJS\Model\Conversation\ConversationCreatedOrUpdated;
@@ -17,6 +18,7 @@
 use Shapin\TalkJS\Model\Conversation\Message;
 use Shapin\TalkJS\Model\Conversation\MessageCollection;
 use Shapin\TalkJS\Model\Conversation\MessageCreated;
+use Shapin\TalkJS\Model\Conversation\MessageDeleted;
 use Shapin\TalkJS\Model\Conversation\ParticipationUpdated;
 
 final class ConversationTest extends TestCase
@@ -145,4 +147,29 @@ public function testAll()
         $this->assertSame($conversationId, $message->getConversationId());
         $this->assertNull($message->getAttachment());
     }
+
+    public function testShouldDeleteConversation()
+    {
+        $randomTestString = bin2hex(random_bytes(10));
+        $conversationId = "conversation_$randomTestString";
+
+        // create a new conversation to delete it
+        $this->api->createOrUpdate($conversationId, [
+            'participants' => ['my_user'],
+            'subject' => 'An amazing conversation',
+            'welcomeMessages' => ['Hello', 'World'],
+            'photoUrl' => 'photo_url',
+        ]);
+
+        $conversation = $this->api->get($conversationId);
+        $this->assertEquals($conversationId, $conversation->getId());
+
+        // delete the conversation
+        $messageDeleted = $this->api->delete($conversationId);
+        $this->assertInstanceOf(MessageDeleted::class, $messageDeleted);
+
+        // unable to retrieve deleted conversation
+        $this->expectException(NotFoundException::class);
+        $conversation = $this->api->get($conversationId);
+    }
 }