Add test to ensure presence channel HTTP API responses are correct

tests/HttpApi/FetchChannelTest.php

@@ -66,6 +66,39 @@ class FetchChannelTest extends TestCase
         ], json_decode($response->getContent(), true));
     }
 
+    /** @test */
+    public function it_returns_the_channel_information_for_presence_channel()
+    {
+        $this->joinPresenceChannel('presence-global', 'user:1');
+        $this->joinPresenceChannel('presence-global', 'user:2');
+        $this->joinPresenceChannel('presence-global', 'user:2');
+
+        $connection = new Connection();
+
+        $requestPath = "/apps/1234/channel/presence-global";
+        $routeParams = [
+            'appId' => '1234',
+            'channelName' => 'presence-global',
+        ];
+
+        $queryString = Pusher::build_auth_query_string('TestKey', 'TestSecret', 'GET', $requestPath);
+
+        $request = new Request('GET', "{$requestPath}?{$queryString}&".http_build_query($routeParams));
+
+        $controller = app(FetchChannelController::class);
+
+        $controller->onOpen($connection, $request);
+
+        /** @var JsonResponse $response */
+        $response = array_pop($connection->sentRawData);
+
+        $this->assertSame([
+            'occupied' => true,
+            'subscription_count' => 3,
+            'user_count' => 2,
+        ], json_decode($response->getContent(), true));
+    }
+
     /** @test */
     public function it_returns_404_for_invalid_channels()
     {

tests/TestCase.php

@@ -89,14 +89,14 @@ abstract class TestCase extends \Orchestra\Testbench\TestCase
         return $connection;
     }
 
-    protected function joinPresenceChannel($channel): Connection
+    protected function joinPresenceChannel($channel, $userId = null): Connection
     {
         $connection = $this->getWebSocketConnection();
 
         $this->pusherServer->onOpen($connection);
 
         $channelData = [
-            'user_id' => 1,
+            'user_id' => $userId ?? 1,
             'user_info' => [
                 'name' => 'Marcel',
             ],