Add basic RDFSource test

Author: acoburn

src/Model/RDFSource.php

@@ -32,7 +32,7 @@ public function respond(Application $app, Request $request, array $options = arr
                 }
             }
 
-            if ($this->canStream()) {
+            if ($this->canStream($responseFormat)) {
                 $digest = $this->wantDigest($request->headers->get('want-digest'));
                 if ($digest) {
                     $res->headers->set('Digest', $digest);

test/Model/RDFSourceTest.php

@@ -0,0 +1,53 @@
+<?php
+
+namespace Trellis\StaticLdp\Model;
+
+use Trellis\StaticLdp\StaticLdpTestBase;
+
+/**
+ * Unit Test of RDFSource class.
+ *
+ * @coversDefaultClass \Trellis\StaticLdp\Model\RDFSource
+ * @group unittest
+ */
+class RDFSourceTest extends StaticLdpTestBase
+{
+
+    /**
+     * @var \Symfony\Component\BrowserKit\Client
+     */
+    protected $client;
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setUp()
+    {
+        parent::setUp();
+        $this->client = $this->createClient();
+    }
+
+    /**
+     * Test GET a RDFSource
+     */
+    public function testGetRDFSource()
+    {
+        $expected_charset = "text/turtle; charset=UTF-8";
+        $expected_links = [
+            "<" . Resource::LDP_NS . "Resource>; rel=\"type\"",
+            "<" . Resource::LDP_NS . "RDFSource>; rel=\"type\""
+        ];
+        $crawler = $this->client->request('GET', "/nobel_914.ttl", [], [], ["HTTP_ACCEPT" => "text/turtle"]);
+        $response = $this->client->getResponse();
+
+        $this->assertEquals($response->getStatusCode(), 200);
+
+        $this->assertTrue($response->headers->has("Content-Type"), "Missing Content-Type header");
+        $this->assertEquals($expected_charset, $response->headers->get('Content-Type'), "Content-Type incorrect");
+
+        $this->assertTrue($response->headers->has('Link'), "Missing Link header");
+        $this->assertEquals($expected_links, $response->headers->get("Link", null, false), "Link headers incorrect.");
+
+        $this->assertTrue($response->headers->has("etag"), "Missing Etag header.");
+    }
+}