emit response effect

src/Effect/Http/EmitResponse.php

@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Marcosh\Effector\Effect\Http;
+
+use Psr\Http\Message\ResponseInterface;
+use Zend\Diactoros\Response\EmitterInterface;
+use Zend\Diactoros\Response\SapiEmitter;
+
+final class EmitResponse
+{
+    /**
+     * @var EmitterInterface|null
+     */
+    private $emitter;
+
+    public function __construct(?EmitterInterface $emitter = null)
+    {
+        if (null === $emitter) {
+            $emitter = new SapiEmitter();
+        }
+
+        $this->emitter = $emitter;
+    }
+
+    public function __invoke(ResponseInterface $response): void
+    {
+        $this->emitter->emit($response);
+    }
+}

test/Effect/Http/EmitResponseTest.php

@@ -0,0 +1,25 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Marcosh\EffectorTest\Effect\Http;
+
+use Marcosh\Effector\Effect\Http\EmitResponse;
+use PHPUnit\Framework\TestCase;
+use Zend\Diactoros\Response;
+use Zend\Diactoros\Response\EmitterInterface;
+
+final class EmitResponseTest extends TestCase
+{
+    public function testEmitsResponseCorrectly()
+    {
+        $emitter = \Mockery::spy(EmitterInterface::class);
+
+        $emitResponse = new EmitResponse($emitter);
+        $response = new Response();
+
+        $emitResponse($response);
+
+        $emitter->shouldHaveReceived('emit')->with($response);
+    }
+}