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diff --git a/vendor/symfony/http-foundation/Tests/StreamedResponseTest.php b/vendor/symfony/http-foundation/Tests/StreamedResponseTest.php
new file mode 100644
index 000000000..587414534
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+++ b/vendor/symfony/http-foundation/Tests/StreamedResponseTest.php
@@ -0,0 +1,124 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\HttpFoundation\Tests;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\StreamedResponse;
+
+class StreamedResponseTest extends TestCase
+{
+    public function testConstructor()
+    {
+        $response = new StreamedResponse(function () { echo 'foo'; }, 404, array('Content-Type' => 'text/plain'));
+
+        $this->assertEquals(404, $response->getStatusCode());
+        $this->assertEquals('text/plain', $response->headers->get('Content-Type'));
+    }
+
+    public function testPrepareWith11Protocol()
+    {
+        $response = new StreamedResponse(function () { echo 'foo'; });
+        $request = Request::create('/');
+        $request->server->set('SERVER_PROTOCOL', 'HTTP/1.1');
+
+        $response->prepare($request);
+
+        $this->assertEquals('1.1', $response->getProtocolVersion());
+        $this->assertNotEquals('chunked', $response->headers->get('Transfer-Encoding'), 'Apache assumes responses with a Transfer-Encoding header set to chunked to already be encoded.');
+    }
+
+    public function testPrepareWith10Protocol()
+    {
+        $response = new StreamedResponse(function () { echo 'foo'; });
+        $request = Request::create('/');
+        $request->server->set('SERVER_PROTOCOL', 'HTTP/1.0');
+
+        $response->prepare($request);
+
+        $this->assertEquals('1.0', $response->getProtocolVersion());
+        $this->assertNull($response->headers->get('Transfer-Encoding'));
+    }
+
+    public function testPrepareWithHeadRequest()
+    {
+        $response = new StreamedResponse(function () { echo 'foo'; }, 200, array('Content-Length' => '123'));
+        $request = Request::create('/', 'HEAD');
+
+        $response->prepare($request);
+
+        $this->assertSame('123', $response->headers->get('Content-Length'));
+    }
+
+    public function testPrepareWithCacheHeaders()
+    {
+        $response = new StreamedResponse(function () { echo 'foo'; }, 200, array('Cache-Control' => 'max-age=600, public'));
+        $request = Request::create('/', 'GET');
+
+        $response->prepare($request);
+        $this->assertEquals('max-age=600, public', $response->headers->get('Cache-Control'));
+    }
+
+    public function testSendContent()
+    {
+        $called = 0;
+
+        $response = new StreamedResponse(function () use (&$called) { ++$called; });
+
+        $response->sendContent();
+        $this->assertEquals(1, $called);
+
+        $response->sendContent();
+        $this->assertEquals(1, $called);
+    }
+
+    /**
+     * @expectedException \LogicException
+     */
+    public function testSendContentWithNonCallable()
+    {
+        $response = new StreamedResponse(null);
+        $response->sendContent();
+    }
+
+    /**
+     * @expectedException \LogicException
+     */
+    public function testSetCallbackNonCallable()
+    {
+        $response = new StreamedResponse(null);
+        $response->setCallback(null);
+    }
+
+    /**
+     * @expectedException \LogicException
+     */
+    public function testSetContent()
+    {
+        $response = new StreamedResponse(function () { echo 'foo'; });
+        $response->setContent('foo');
+    }
+
+    public function testGetContent()
+    {
+        $response = new StreamedResponse(function () { echo 'foo'; });
+        $this->assertFalse($response->getContent());
+    }
+
+    public function testCreate()
+    {
+        $response = StreamedResponse::create(function () {}, 204);
+
+        $this->assertInstanceOf('Symfony\Component\HttpFoundation\StreamedResponse', $response);
+        $this->assertEquals(204, $response->getStatusCode());
+    }
+}