add tests for http/output

Signed-off-by: Robin Appelman <robin@icewind.nl>

tests/lib/AppFramework/Http/OutputTest.php

@@ -0,0 +1,31 @@
+<?php
+/**
+ * Copyright (c) 2016 Robin Appelman <robin@icewind.nl>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+namespace Test\AppFramework\Http;
+
+use OC\AppFramework\Http\Output;
+
+class OutputTest extends \Test\TestCase {
+	public function testSetOutput() {
+		$this->expectOutputString('foo');
+		$output = new Output('');
+		$output->setOutput('foo');
+	}
+
+	public function testSetReadfile() {
+		$this->expectOutputString(file_get_contents(__FILE__));
+		$output = new Output('');
+		$output->setReadfile(__FILE__);
+	}
+
+	public function testSetReadfileStream() {
+		$this->expectOutputString(file_get_contents(__FILE__));
+		$output = new Output('');
+		$output->setReadfile(fopen(__FILE__, 'r'));
+	}
+}