Move version check code out of class Updater

apps/updatenotification/appinfo/app.php

@@ -20,10 +20,9 @@
  */
 
 if(\OC::$server->getConfig()->getSystemValue('updatechecker', true) === true) {
-	$updater = new \OC\Updater(
+	$updater = new \OC\Updater\VersionCheck(
 		\OC::$server->getHTTPHelper(),
-		\OC::$server->getConfig(),
-		\OC::$server->getIntegrityCodeChecker()
+		\OC::$server->getConfig()
 	);
 	$updateChecker = new \OCA\UpdateNotification\UpdateChecker(
 		$updater

apps/updatenotification/appinfo/application.php

@@ -34,10 +34,9 @@ class Application extends App {
 		$container = $this->getContainer();
 
 		$container->registerService('AdminController', function(IAppContainer $c) {
-			$updater = new \OC\Updater(
+			$updater = new \OC\Updater\VersionCheck(
 				\OC::$server->getHTTPHelper(),
-				\OC::$server->getConfig(),
-				\OC::$server->getIntegrityCodeChecker()
+				\OC::$server->getConfig()
 			);
 			return new AdminController(
 				$c->query('AppName'),

apps/updatenotification/lib/updatechecker.php

@@ -21,16 +21,16 @@
 
 namespace OCA\UpdateNotification;
 
-use OC\Updater;
+use OC\Updater\VersionCheck;
 
 class UpdateChecker {
-	/** @var Updater */
+	/** @var VersionCheck */
 	private $updater;
 
 	/**
-	 * @param Updater $updater
+	 * @param VersionCheck $updater
 	 */
-	public function __construct(Updater $updater) {
+	public function __construct(VersionCheck $updater) {
 		$this->updater = $updater;
 	}
 

apps/updatenotification/tests/UpdateCheckerTest.php

@@ -34,7 +34,7 @@ class UpdateCheckerTest extends TestCase {
 	public function setUp() {
 		parent::setUp();
 
-		$this->updater = $this->getMockBuilder('\OC\Updater')
+		$this->updater = $this->getMockBuilder('\OC\Updater\VersionCheck')
 			->disableOriginalConstructor()->getMock();
 		$this->updateChecker = new UpdateChecker($this->updater);
 	}

core/Command/Upgrade.php

@@ -128,7 +128,6 @@ class Upgrade extends Command {
 
 			$self = $this;
 			$updater = new Updater(
-					\OC::$server->getHTTPHelper(),
 					$this->config,
 					\OC::$server->getIntegrityCodeChecker(),
 					$this->logger

core/ajax/update.php

@@ -47,7 +47,6 @@ if (OC::checkUpgrade(false)) {
 	$logger = \OC::$server->getLogger();
 	$config = \OC::$server->getConfig();
 	$updater = new \OC\Updater(
-			\OC::$server->getHTTPHelper(),
 			$config,
 			\OC::$server->getIntegrityCodeChecker(),
 			$logger

lib/private/updater.php

@@ -37,7 +37,6 @@ use OC\Hooks\BasicEmitter;
 use OC\IntegrityCheck\Checker;
 use OC_App;
 use OC_Installer;
-use OC_Util;
 use OCP\IConfig;
 use OC\Setup;
 use OCP\ILogger;
@@ -56,9 +55,6 @@ class Updater extends BasicEmitter {
 	/** @var ILogger $log */
 	private $log;
 	
-	/** @var \OC\HTTPHelper $helper */
-	private $httpHelper;
-	
 	/** @var IConfig */
 	private $config;
 
@@ -83,16 +79,13 @@ class Updater extends BasicEmitter {
 	];
 
 	/**
-	 * @param HTTPHelper $httpHelper
 	 * @param IConfig $config
 	 * @param Checker $checker
 	 * @param ILogger $log
 	 */
-	public function __construct(HTTPHelper $httpHelper,
-								IConfig $config,
+	public function __construct(IConfig $config,
 								Checker $checker,
 								ILogger $log = null) {
-		$this->httpHelper = $httpHelper;
 		$this->log = $log;
 		$this->config = $config;
 		$this->checker = $checker;
@@ -131,63 +124,6 @@ class Updater extends BasicEmitter {
 		$this->skip3rdPartyAppsDisable = $flag;
 	}
 
-	/**
-	 * Check if a new version is available
-	 *
-	 * @param string $updaterUrl the url to check, i.e. 'http://apps.owncloud.com/updater.php'
-	 * @return array|bool
-	 */
-	public function check($updaterUrl = null) {
-
-		// Look up the cache - it is invalidated all 30 minutes
-		if (((int)$this->config->getAppValue('core', 'lastupdatedat') + 1800) > time()) {
-			return json_decode($this->config->getAppValue('core', 'lastupdateResult'), true);
-		}
-
-		if (is_null($updaterUrl)) {
-			$updaterUrl = 'https://updates.owncloud.com/server/';
-		}
-
-		$this->config->setAppValue('core', 'lastupdatedat', time());
-
-		if ($this->config->getAppValue('core', 'installedat', '') === '') {
-			$this->config->setAppValue('core', 'installedat', microtime(true));
-		}
-
-		$version = \OCP\Util::getVersion();
-		$version['installed'] = $this->config->getAppValue('core', 'installedat');
-		$version['updated'] = $this->config->getAppValue('core', 'lastupdatedat');
-		$version['updatechannel'] = \OC_Util::getChannel();
-		$version['edition'] = \OC_Util::getEditionString();
-		$version['build'] = \OC_Util::getBuild();
-		$versionString = implode('x', $version);
-
-		//fetch xml data from updater
-		$url = $updaterUrl . '?version=' . $versionString;
-
-		$tmp = [];
-		$xml = $this->httpHelper->getUrlContent($url);
-		if ($xml) {
-			$loadEntities = libxml_disable_entity_loader(true);
-			$data = @simplexml_load_string($xml);
-			libxml_disable_entity_loader($loadEntities);
-			if ($data !== false) {
-				$tmp['version'] = (string)$data->version;
-				$tmp['versionstring'] = (string)$data->versionstring;
-				$tmp['url'] = (string)$data->url;
-				$tmp['web'] = (string)$data->web;
-			} else {
-				libxml_clear_errors();
-			}
-		} else {
-			$data = [];
-		}
-
-		// Cache the result
-		$this->config->setAppValue('core', 'lastupdateResult', json_encode($data));
-		return $tmp;
-	}
-
 	/**
 	 * runs the update actions in maintenance mode, does not upgrade the source files
 	 * except the main .htaccess file

lib/private/updater/versioncheck.php

@@ -0,0 +1,119 @@
+<?php
+/**
+ * @author Arthur Schiwon <blizzz@owncloud.com>
+ * @author Bart Visscher <bartv@thisnet.nl>
+ * @author Björn Schießle <schiessle@owncloud.com>
+ * @author Frank Karlitschek <frank@owncloud.org>
+ * @author Joas Schilling <nickvergessen@owncloud.com>
+ * @author Lukas Reschke <lukas@owncloud.com>
+ * @author Morris Jobke <hey@morrisjobke.de>
+ * @author Robin Appelman <icewind@owncloud.com>
+ * @author Robin McCorkell <robin@mccorkell.me.uk>
+ * @author Steffen Lindner <mail@steffen-lindner.de>
+ * @author Thomas Müller <thomas.mueller@tmit.eu>
+ * @author Victor Dubiniuk <dubiniuk@owncloud.com>
+ * @author Vincent Petry <pvince81@owncloud.com>
+ *
+ * @copyright Copyright (c) 2016, ownCloud, Inc.
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License, version 3,
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+
+namespace OC\Updater;
+
+use OC\Hooks\BasicEmitter;
+use OC\HTTPHelper;
+use OC_Util;
+use OCP\IConfig;
+use OC\Setup;
+use OCP\Util;
+
+class VersionCheck {
+
+	/** @var \OC\HTTPHelper $helper */
+	private $httpHelper;
+	
+	/** @var IConfig */
+	private $config;
+
+	/**
+	 * @param HTTPHelper $httpHelper
+	 * @param IConfig $config
+	 */
+	public function __construct(HTTPHelper $httpHelper,
+								IConfig $config) {
+		$this->httpHelper = $httpHelper;
+		$this->config = $config;
+	}
+
+
+	/**
+	 * Check if a new version is available
+	 *
+	 * @param string $updaterUrl the url to check, i.e. 'http://apps.owncloud.com/updater.php'
+	 * @return array|bool
+	 */
+	public function check($updaterUrl = null) {
+
+		// Look up the cache - it is invalidated all 30 minutes
+		if (((int)$this->config->getAppValue('core', 'lastupdatedat') + 1800) > time()) {
+			return json_decode($this->config->getAppValue('core', 'lastupdateResult'), true);
+		}
+
+		if (is_null($updaterUrl)) {
+			$updaterUrl = 'https://updates.owncloud.com/server/';
+		}
+
+		$this->config->setAppValue('core', 'lastupdatedat', time());
+
+		if ($this->config->getAppValue('core', 'installedat', '') === '') {
+			$this->config->setAppValue('core', 'installedat', microtime(true));
+		}
+
+		$version = Util::getVersion();
+		$version['installed'] = $this->config->getAppValue('core', 'installedat');
+		$version['updated'] = $this->config->getAppValue('core', 'lastupdatedat');
+		$version['updatechannel'] = \OC_Util::getChannel();
+		$version['edition'] = \OC_Util::getEditionString();
+		$version['build'] = \OC_Util::getBuild();
+		$versionString = implode('x', $version);
+
+		//fetch xml data from updater
+		$url = $updaterUrl . '?version=' . $versionString;
+
+		$tmp = [];
+		$xml = $this->httpHelper->getUrlContent($url);
+		if ($xml) {
+			$loadEntities = libxml_disable_entity_loader(true);
+			$data = @simplexml_load_string($xml);
+			libxml_disable_entity_loader($loadEntities);
+			if ($data !== false) {
+				$tmp['version'] = (string)$data->version;
+				$tmp['versionstring'] = (string)$data->versionstring;
+				$tmp['url'] = (string)$data->url;
+				$tmp['web'] = (string)$data->web;
+			} else {
+				libxml_clear_errors();
+			}
+		} else {
+			$data = [];
+		}
+
+		// Cache the result
+		$this->config->setAppValue('core', 'lastupdateResult', json_encode($data));
+		return $tmp;
+	}
+}
+

tests/lib/updater.php

@@ -29,8 +29,6 @@ use OC\IntegrityCheck\Checker;
 class UpdaterTest extends \Test\TestCase {
 	/** @var IConfig|\PHPUnit_Framework_MockObject_MockObject */
 	private $config;
-	/** @var HTTPHelper */
-	private $httpHelper;
 	/** @var ILogger */
 	private $logger;
 	/** @var Updater */
@@ -43,9 +41,6 @@ class UpdaterTest extends \Test\TestCase {
 		$this->config = $this->getMockBuilder('\\OCP\\IConfig')
 			->disableOriginalConstructor()
 			->getMock();
-		$this->httpHelper = $this->getMockBuilder('\\OC\\HTTPHelper')
-			->disableOriginalConstructor()
-			->getMock();
 		$this->logger = $this->getMockBuilder('\\OCP\\ILogger')
 			->disableOriginalConstructor()
 			->getMock();
@@ -54,7 +49,6 @@ class UpdaterTest extends \Test\TestCase {
 				->getMock();
 
 		$this->updater = new Updater(
-			$this->httpHelper,
 			$this->config,
 			$this->checker,
 			$this->logger
@@ -184,237 +178,4 @@ class UpdaterTest extends \Test\TestCase {
 		$this->assertSame(false, $this->invokePrivate($this->updater, 'skip3rdPartyAppsDisable'));
 	}
 
-	public function testCheckInCache() {
-		$expectedResult = [
-			'version' => '8.0.4.2',
-			'versionstring' => 'ownCloud 8.0.4',
-			'url' => 'https://download.owncloud.org/community/owncloud-8.0.4.zip',
-			'web' => 'http://doc.owncloud.org/server/8.0/admin_manual/maintenance/upgrade.html',
-		];
-
-		$this->config
-			->expects($this->at(0))
-			->method('getAppValue')
-			->with('core', 'lastupdatedat')
-			->will($this->returnValue(time()));
-		$this->config
-			->expects($this->at(1))
-			->method('getAppValue')
-			->with('core', 'lastupdateResult')
-			->will($this->returnValue(json_encode($expectedResult)));
-
-		$this->assertSame($expectedResult, $this->updater->check());
-	}
-
-	public function testCheckWithoutUpdateUrl() {
-		$expectedResult = [
-			'version' => '8.0.4.2',
-			'versionstring' => 'ownCloud 8.0.4',
-			'url' => 'https://download.owncloud.org/community/owncloud-8.0.4.zip',
-			'web' => 'http://doc.owncloud.org/server/8.0/admin_manual/maintenance/upgrade.html',
-		];
-
-		$this->config
-			->expects($this->at(0))
-			->method('getAppValue')
-			->with('core', 'lastupdatedat')
-			->will($this->returnValue(0));
-		$this->config
-			->expects($this->at(1))
-			->method('setAppValue')
-			->with('core', 'lastupdatedat', $this->isType('integer'));
-		$this->config
-			->expects($this->at(3))
-			->method('getAppValue')
-			->with('core', 'installedat')
-			->will($this->returnValue('installedat'));
-		$this->config
-			->expects($this->at(4))
-			->method('getAppValue')
-			->with('core', 'lastupdatedat')
-			->will($this->returnValue('lastupdatedat'));
-		$this->config
-			->expects($this->at(5))
-			->method('setAppValue')
-			->with('core', 'lastupdateResult', json_encode($expectedResult));
-
-		$updateXml = '<?xml version="1.0"?>
-<owncloud>
-  <version>8.0.4.2</version>
-  <versionstring>ownCloud 8.0.4</versionstring>
-  <url>https://download.owncloud.org/community/owncloud-8.0.4.zip</url>
-  <web>http://doc.owncloud.org/server/8.0/admin_manual/maintenance/upgrade.html</web>
-</owncloud>';
-		$this->httpHelper
-			->expects($this->once())
-			->method('getUrlContent')
-			->with($this->buildUpdateUrl('https://updates.owncloud.com/server/'))
-			->will($this->returnValue($updateXml));
-
-		$this->assertSame($expectedResult, $this->updater->check());
-	}
-
-	public function testCheckWithInvalidXml() {
-		$this->config
-			->expects($this->at(0))
-			->method('getAppValue')
-			->with('core', 'lastupdatedat')
-			->will($this->returnValue(0));
-		$this->config
-			->expects($this->at(1))
-			->method('setAppValue')
-			->with('core', 'lastupdatedat', $this->isType('integer'));
-		$this->config
-			->expects($this->at(3))
-			->method('getAppValue')
-			->with('core', 'installedat')
-			->will($this->returnValue('installedat'));
-		$this->config
-			->expects($this->at(4))
-			->method('getAppValue')
-			->with('core', 'lastupdatedat')
-			->will($this->returnValue('lastupdatedat'));
-		$this->config
-			->expects($this->at(5))
-			->method('setAppValue')
-			->with('core', 'lastupdateResult', 'false');
-
-		$updateXml = 'Invalid XML Response!';
-		$this->httpHelper
-			->expects($this->once())
-			->method('getUrlContent')
-			->with($this->buildUpdateUrl('https://updates.owncloud.com/server/'))
-			->will($this->returnValue($updateXml));
-
-		$this->assertSame([], $this->updater->check());
-	}
-
-	public function testCheckWithUpdateUrl() {
-		$expectedResult = [
-			'version' => '8.0.4.2',
-			'versionstring' => 'ownCloud 8.0.4',
-			'url' => 'https://download.owncloud.org/community/owncloud-8.0.4.zip',
-			'web' => 'http://doc.owncloud.org/server/8.0/admin_manual/maintenance/upgrade.html',
-		];
-
-		$this->config
-			->expects($this->at(0))
-			->method('getAppValue')
-			->with('core', 'lastupdatedat')
-			->will($this->returnValue(0));
-		$this->config
-			->expects($this->at(1))
-			->method('setAppValue')
-			->with('core', 'lastupdatedat', $this->isType('integer'));
-		$this->config
-			->expects($this->at(3))
-			->method('getAppValue')
-			->with('core', 'installedat')
-			->will($this->returnValue('installedat'));
-		$this->config
-			->expects($this->at(4))
-			->method('getAppValue')
-			->with('core', 'lastupdatedat')
-			->will($this->returnValue('lastupdatedat'));
-		$this->config
-			->expects($this->at(5))
-			->method('setAppValue')
-			->with('core', 'lastupdateResult', json_encode($expectedResult));
-
-		$updateXml = '<?xml version="1.0"?>
-<owncloud>
-  <version>8.0.4.2</version>
-  <versionstring>ownCloud 8.0.4</versionstring>
-  <url>https://download.owncloud.org/community/owncloud-8.0.4.zip</url>
-  <web>http://doc.owncloud.org/server/8.0/admin_manual/maintenance/upgrade.html</web>
-</owncloud>';
-		$this->httpHelper
-			->expects($this->once())
-			->method('getUrlContent')
-			->with($this->buildUpdateUrl('https://myupdater.com/'))
-			->will($this->returnValue($updateXml));
-
-		$this->assertSame($expectedResult, $this->updater->check('https://myupdater.com/'));
-	}
-
-	public function testCheckWithEmptyValidXmlResponse() {
-		$expectedResult = [
-			'version' => '',
-			'versionstring' => '',
-			'url' => '',
-			'web' => '',
-		];
-
-		$this->config
-			->expects($this->at(0))
-			->method('getAppValue')
-			->with('core', 'lastupdatedat')
-			->will($this->returnValue(0));
-		$this->config
-			->expects($this->at(1))
-			->method('setAppValue')
-			->with('core', 'lastupdatedat', $this->isType('integer'));
-		$this->config
-			->expects($this->at(3))
-			->method('getAppValue')
-			->with('core', 'installedat')
-			->will($this->returnValue('installedat'));
-		$this->config
-			->expects($this->at(4))
-			->method('getAppValue')
-			->with('core', 'lastupdatedat')
-			->will($this->returnValue('lastupdatedat'));
-
-		$updateXml = '<?xml version="1.0"?>
-<owncloud>
-  <version></version>
-  <versionstring></versionstring>
-  <url></url>
-  <web></web>
-</owncloud>';
-		$this->httpHelper
-			->expects($this->once())
-			->method('getUrlContent')
-			->with($this->buildUpdateUrl('https://updates.owncloud.com/server/'))
-			->will($this->returnValue($updateXml));
-
-		$this->assertSame($expectedResult, $this->updater->check());
-	}
-
-	public function testCheckWithEmptyInvalidXmlResponse() {
-		$expectedResult = [];
-
-		$this->config
-			->expects($this->at(0))
-			->method('getAppValue')
-			->with('core', 'lastupdatedat')
-			->will($this->returnValue(0));
-		$this->config
-			->expects($this->at(1))
-			->method('setAppValue')
-			->with('core', 'lastupdatedat', $this->isType('integer'));
-		$this->config
-			->expects($this->at(3))
-			->method('getAppValue')
-			->with('core', 'installedat')
-			->will($this->returnValue('installedat'));
-		$this->config
-			->expects($this->at(4))
-			->method('getAppValue')
-			->with('core', 'lastupdatedat')
-			->will($this->returnValue('lastupdatedat'));
-		$this->config
-			->expects($this->at(5))
-			->method('setAppValue')
-			->with('core', 'lastupdateResult', json_encode($expectedResult));
-
-		$updateXml = '';
-		$this->httpHelper
-			->expects($this->once())
-			->method('getUrlContent')
-			->with($this->buildUpdateUrl('https://updates.owncloud.com/server/'))
-			->will($this->returnValue($updateXml));
-
-		$this->assertSame($expectedResult, $this->updater->check());
-	}
 }

tests/lib/updater/versioncheck.php

@@ -0,0 +1,293 @@
+<?php
+/**
+ * @author Lukas Reschke <lukas@owncloud.com>
+ * @author Victor Dubiniuk <dubiniuk@owncloud.com>
+ *
+ * @copyright Copyright (c) 2015, ownCloud, Inc.
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License, version 3,
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+
+namespace OC;
+
+use OC\Updater\VersionCheck;
+use OCP\IConfig;
+use OCP\Util;
+
+class VersionCheckTest extends \Test\TestCase {
+	/** @var IConfig| \PHPUnit_Framework_MockObject_MockObject */
+	private $config;
+	/** @var HTTPHelper | \PHPUnit_Framework_MockObject_MockObject*/
+	private $httpHelper;
+	/** @var VersionCheck */
+	private $updater;
+
+	public function setUp() {
+		parent::setUp();
+		$this->config = $this->getMockBuilder('\\OCP\\IConfig')
+			->disableOriginalConstructor()
+			->getMock();
+		$this->httpHelper = $this->getMockBuilder('\\OC\\HTTPHelper')
+			->disableOriginalConstructor()
+			->getMock();
+
+		$this->updater = new VersionCheck(
+			$this->httpHelper,
+			$this->config
+		);
+	}
+
+	/**
+	 * @param string $baseUrl
+	 * @return string
+	 */
+	private function buildUpdateUrl($baseUrl) {
+		return $baseUrl . '?version='.implode('x', Util::getVersion()).'xinstalledatxlastupdatedatx'.\OC_Util::getChannel().'x'.\OC_Util::getEditionString().'x';
+	}
+
+	public function testCheckInCache() {
+		$expectedResult = [
+			'version' => '8.0.4.2',
+			'versionstring' => 'ownCloud 8.0.4',
+			'url' => 'https://download.owncloud.org/community/owncloud-8.0.4.zip',
+			'web' => 'http://doc.owncloud.org/server/8.0/admin_manual/maintenance/upgrade.html',
+		];
+
+		$this->config
+			->expects($this->at(0))
+			->method('getAppValue')
+			->with('core', 'lastupdatedat')
+			->will($this->returnValue(time()));
+		$this->config
+			->expects($this->at(1))
+			->method('getAppValue')
+			->with('core', 'lastupdateResult')
+			->will($this->returnValue(json_encode($expectedResult)));
+
+		$this->assertSame($expectedResult, $this->updater->check());
+	}
+
+	public function testCheckWithoutUpdateUrl() {
+		$expectedResult = [
+			'version' => '8.0.4.2',
+			'versionstring' => 'ownCloud 8.0.4',
+			'url' => 'https://download.owncloud.org/community/owncloud-8.0.4.zip',
+			'web' => 'http://doc.owncloud.org/server/8.0/admin_manual/maintenance/upgrade.html',
+		];
+
+		$this->config
+			->expects($this->at(0))
+			->method('getAppValue')
+			->with('core', 'lastupdatedat')
+			->will($this->returnValue(0));
+		$this->config
+			->expects($this->at(1))
+			->method('setAppValue')
+			->with('core', 'lastupdatedat', $this->isType('integer'));
+		$this->config
+			->expects($this->at(3))
+			->method('getAppValue')
+			->with('core', 'installedat')
+			->will($this->returnValue('installedat'));
+		$this->config
+			->expects($this->at(4))
+			->method('getAppValue')
+			->with('core', 'lastupdatedat')
+			->will($this->returnValue('lastupdatedat'));
+		$this->config
+			->expects($this->at(5))
+			->method('setAppValue')
+			->with('core', 'lastupdateResult', json_encode($expectedResult));
+
+		$updateXml = '<?xml version="1.0"?>
+<owncloud>
+  <version>8.0.4.2</version>
+  <versionstring>ownCloud 8.0.4</versionstring>
+  <url>https://download.owncloud.org/community/owncloud-8.0.4.zip</url>
+  <web>http://doc.owncloud.org/server/8.0/admin_manual/maintenance/upgrade.html</web>
+</owncloud>';
+		$this->httpHelper
+			->expects($this->once())
+			->method('getUrlContent')
+			->with($this->buildUpdateUrl('https://updates.owncloud.com/server/'))
+			->will($this->returnValue($updateXml));
+
+		$this->assertSame($expectedResult, $this->updater->check());
+	}
+
+	public function testCheckWithInvalidXml() {
+		$this->config
+			->expects($this->at(0))
+			->method('getAppValue')
+			->with('core', 'lastupdatedat')
+			->will($this->returnValue(0));
+		$this->config
+			->expects($this->at(1))
+			->method('setAppValue')
+			->with('core', 'lastupdatedat', $this->isType('integer'));
+		$this->config
+			->expects($this->at(3))
+			->method('getAppValue')
+			->with('core', 'installedat')
+			->will($this->returnValue('installedat'));
+		$this->config
+			->expects($this->at(4))
+			->method('getAppValue')
+			->with('core', 'lastupdatedat')
+			->will($this->returnValue('lastupdatedat'));
+		$this->config
+			->expects($this->at(5))
+			->method('setAppValue')
+			->with('core', 'lastupdateResult', 'false');
+
+		$updateXml = 'Invalid XML Response!';
+		$this->httpHelper
+			->expects($this->once())
+			->method('getUrlContent')
+			->with($this->buildUpdateUrl('https://updates.owncloud.com/server/'))
+			->will($this->returnValue($updateXml));
+
+		$this->assertSame([], $this->updater->check());
+	}
+
+	public function testCheckWithUpdateUrl() {
+		$expectedResult = [
+			'version' => '8.0.4.2',
+			'versionstring' => 'ownCloud 8.0.4',
+			'url' => 'https://download.owncloud.org/community/owncloud-8.0.4.zip',
+			'web' => 'http://doc.owncloud.org/server/8.0/admin_manual/maintenance/upgrade.html',
+		];
+
+		$this->config
+			->expects($this->at(0))
+			->method('getAppValue')
+			->with('core', 'lastupdatedat')
+			->will($this->returnValue(0));
+		$this->config
+			->expects($this->at(1))
+			->method('setAppValue')
+			->with('core', 'lastupdatedat', $this->isType('integer'));
+		$this->config
+			->expects($this->at(3))
+			->method('getAppValue')
+			->with('core', 'installedat')
+			->will($this->returnValue('installedat'));
+		$this->config
+			->expects($this->at(4))
+			->method('getAppValue')
+			->with('core', 'lastupdatedat')
+			->will($this->returnValue('lastupdatedat'));
+		$this->config
+			->expects($this->at(5))
+			->method('setAppValue')
+			->with('core', 'lastupdateResult', json_encode($expectedResult));
+
+		$updateXml = '<?xml version="1.0"?>
+<owncloud>
+  <version>8.0.4.2</version>
+  <versionstring>ownCloud 8.0.4</versionstring>
+  <url>https://download.owncloud.org/community/owncloud-8.0.4.zip</url>
+  <web>http://doc.owncloud.org/server/8.0/admin_manual/maintenance/upgrade.html</web>
+</owncloud>';
+		$this->httpHelper
+			->expects($this->once())
+			->method('getUrlContent')
+			->with($this->buildUpdateUrl('https://myupdater.com/'))
+			->will($this->returnValue($updateXml));
+
+		$this->assertSame($expectedResult, $this->updater->check('https://myupdater.com/'));
+	}
+
+	public function testCheckWithEmptyValidXmlResponse() {
+		$expectedResult = [
+			'version' => '',
+			'versionstring' => '',
+			'url' => '',
+			'web' => '',
+		];
+
+		$this->config
+			->expects($this->at(0))
+			->method('getAppValue')
+			->with('core', 'lastupdatedat')
+			->will($this->returnValue(0));
+		$this->config
+			->expects($this->at(1))
+			->method('setAppValue')
+			->with('core', 'lastupdatedat', $this->isType('integer'));
+		$this->config
+			->expects($this->at(3))
+			->method('getAppValue')
+			->with('core', 'installedat')
+			->will($this->returnValue('installedat'));
+		$this->config
+			->expects($this->at(4))
+			->method('getAppValue')
+			->with('core', 'lastupdatedat')
+			->will($this->returnValue('lastupdatedat'));
+
+		$updateXml = '<?xml version="1.0"?>
+<owncloud>
+  <version></version>
+  <versionstring></versionstring>
+  <url></url>
+  <web></web>
+</owncloud>';
+		$this->httpHelper
+			->expects($this->once())
+			->method('getUrlContent')
+			->with($this->buildUpdateUrl('https://updates.owncloud.com/server/'))
+			->will($this->returnValue($updateXml));
+
+		$this->assertSame($expectedResult, $this->updater->check());
+	}
+
+	public function testCheckWithEmptyInvalidXmlResponse() {
+		$expectedResult = [];
+
+		$this->config
+			->expects($this->at(0))
+			->method('getAppValue')
+			->with('core', 'lastupdatedat')
+			->will($this->returnValue(0));
+		$this->config
+			->expects($this->at(1))
+			->method('setAppValue')
+			->with('core', 'lastupdatedat', $this->isType('integer'));
+		$this->config
+			->expects($this->at(3))
+			->method('getAppValue')
+			->with('core', 'installedat')
+			->will($this->returnValue('installedat'));
+		$this->config
+			->expects($this->at(4))
+			->method('getAppValue')
+			->with('core', 'lastupdatedat')
+			->will($this->returnValue('lastupdatedat'));
+		$this->config
+			->expects($this->at(5))
+			->method('setAppValue')
+			->with('core', 'lastupdateResult', json_encode($expectedResult));
+
+		$updateXml = '';
+		$this->httpHelper
+			->expects($this->once())
+			->method('getUrlContent')
+			->with($this->buildUpdateUrl('https://updates.owncloud.com/server/'))
+			->will($this->returnValue($updateXml));
+
+		$this->assertSame($expectedResult, $this->updater->check());
+	}
+}