Merge pull request #24444 from owncloud/update-notifications-for-core-and-apps

Update notifications for core and apps

9 files changed, 907 insertions, 1 deletions

diff --git a/apps/updatenotification/appinfo/app.php b/apps/updatenotification/appinfo/app.php
index a88861c0942..e9780757cc4 100644
--- a/apps/updatenotification/appinfo/app.php
+++ b/apps/updatenotification/appinfo/app.php
@@ -38,4 +38,18 @@ if(\OC::$server->getConfig()->getSystemValue('updatechecker', true) === true) {
 			\OC_App::registerAdmin('updatenotification', 'admin');
 		}
 	}
+
+	$manager = \OC::$server->getNotificationManager();
+	$manager->registerNotifier(function() use ($manager) {
+		return new \OCA\UpdateNotification\Notification\Notifier(
+			$manager,
+			\OC::$server->getL10NFactory()
+		);
+	}, function() {
+		$l = \OC::$server->getL10N('updatenotification');
+		return [
+			'id' => 'updatenotification',
+			'name' => $l->t('Update notifications'),
+		];
+	});
 }
diff --git a/apps/updatenotification/appinfo/info.xml b/apps/updatenotification/appinfo/info.xml
index 5d7a647fd03..3ea2d1a13de 100644
--- a/apps/updatenotification/appinfo/info.xml
+++ b/apps/updatenotification/appinfo/info.xml
@@ -5,10 +5,14 @@
 	<description>Displays update notifications for ownCloud and provides the SSO for the updater.</description>
 	<licence>AGPL</licence>
 	<author>Lukas Reschke</author>
-	<version>0.2.0</version>
+	<version>0.2.1</version>
 	<namespace>UpdateNotification</namespace>
 	<default_enable/>
 	<dependencies>
 		<owncloud min-version="9.1" max-version="9.1" />
 	</dependencies>
+
+	<background-jobs>
+		<job>OCA\UpdateNotification\Notification\BackgroundJob</job>
+	</background-jobs>
 </info>
diff --git a/apps/updatenotification/js/admin.js b/apps/updatenotification/js/admin.js
index 3bc5dd21527..3ca45a191d4 100644
--- a/apps/updatenotification/js/admin.js
+++ b/apps/updatenotification/js/admin.js
@@ -39,8 +39,16 @@ $(document).ready(function(){
 			});
 		});
 	});
+
 	$('#release-channel').change(function() {
 		var newChannel = $('#release-channel').find(":selected").val();
+
+		if (newChannel === 'git' || newChannel === 'daily') {
+			$('#oca_updatenotification_groups em').removeClass('hidden');
+		} else {
+			$('#oca_updatenotification_groups em').addClass('hidden');
+		}
+
 		$.post(
 			OC.generateUrl('/apps/updatenotification/channel'),
 			{
@@ -51,4 +59,12 @@ $(document).ready(function(){
 			}
 		);
 	});
+
+	var $notificationTargetGroups = $('#oca_updatenotification_groups_list');
+	OC.Settings.setupGroupsSelect($notificationTargetGroups);
+	$notificationTargetGroups.change(function(ev) {
+		var groups = ev.val || [];
+		groups = JSON.stringify(groups);
+		OC.AppConfig.setValue('updatenotification', 'notify_groups', groups);
+	});
 });
diff --git a/apps/updatenotification/lib/Controller/AdminController.php b/apps/updatenotification/lib/Controller/AdminController.php
index 5dbcc685809..2fc12140b20 100644
--- a/apps/updatenotification/lib/Controller/AdminController.php
+++ b/apps/updatenotification/lib/Controller/AdminController.php
@@ -100,12 +100,17 @@ class AdminController extends Controller {
 			unset($channels[$key]);
 		}
 		$updateState = $this->updateChecker->getUpdateState();
+
+		$notifyGroups = json_decode($this->config->getAppValue('updatenotification', 'notify_groups', '["admin"]'), true);
+
 		$params = [
 			'isNewVersionAvailable' => ($updateState === []) ? false : true,
 			'lastChecked' => $lastUpdateCheck,
 			'currentChannel' => $currentChannel,
 			'channels' => $channels,
 			'newVersionString' => ($updateState === []) ? '' : $updateState['updateVersion'],
+
+			'notify_groups' => implode('|', $notifyGroups),
 		];
 
 		return new TemplateResponse($this->appName, 'admin', $params, '');
diff --git a/apps/updatenotification/lib/Notification/BackgroundJob.php b/apps/updatenotification/lib/Notification/BackgroundJob.php
new file mode 100644
index 00000000000..e455a1642f4
--- /dev/null
+++ b/apps/updatenotification/lib/Notification/BackgroundJob.php
@@ -0,0 +1,213 @@
+<?php
+/**
+ * @author Joas Schilling <nickvergessen@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 OCA\UpdateNotification\Notification;
+
+
+use OC\BackgroundJob\TimedJob;
+use OC\Installer;
+use OC\Updater\VersionCheck;
+use OCP\App\IAppManager;
+use OCP\Http\Client\IClientService;
+use OCP\IConfig;
+use OCP\IGroup;
+use OCP\IGroupManager;
+use OCP\IURLGenerator;
+use OCP\IUser;
+use OCP\Notification\IManager;
+
+class BackgroundJob extends TimedJob {
+
+	/** @var IConfig */
+	protected $config;
+
+	/** @var IManager */
+	protected $notificationManager;
+
+	/** @var IGroupManager */
+	protected $groupManager;
+
+	/** @var IAppManager */
+	protected $appManager;
+
+	/** @var IClientService */
+	protected $client;
+
+	/** @var IURLGenerator */
+	protected $urlGenerator;
+
+	/** @var IUser[] */
+	protected $users;
+
+	/**
+	 * NotificationBackgroundJob constructor.
+	 *
+	 * @param IConfig $config
+	 * @param IManager $notificationManager
+	 * @param IGroupManager $groupManager
+	 * @param IAppManager $appManager
+	 * @param IClientService $client
+	 * @param IURLGenerator $urlGenerator
+	 */
+	public function __construct(IConfig $config, IManager $notificationManager, IGroupManager $groupManager, IAppManager $appManager, IClientService $client, IURLGenerator $urlGenerator) {
+		// Run once a day
+		$this->setInterval(60 * 60 * 24);
+
+		$this->config = $config;
+		$this->notificationManager = $notificationManager;
+		$this->groupManager = $groupManager;
+		$this->appManager = $appManager;
+		$this->client = $client;
+		$this->urlGenerator = $urlGenerator;
+	}
+
+	protected function run($argument) {
+		$this->checkCoreUpdate();
+		$this->checkAppUpdates();
+	}
+
+	/**
+	 * Check for ownCloud update
+	 */
+	protected function checkCoreUpdate() {
+		if (in_array($this->getChannel(), ['daily', 'git'])) {
+			// "These aren't the update channels you're looking for." - Ben Obi-Wan Kenobi
+			return;
+		}
+
+		$updater = $this->createVersionCheck();
+
+		$status = $updater->check();
+		if (isset($status['version'])) {
+			$url = $this->urlGenerator->linkToRouteAbsolute('settings_admin') . '#updater';
+			$this->createNotifications('core', $status['version'], $url);
+		}
+	}
+
+	/**
+	 * Check all installed apps for updates
+	 */
+	protected function checkAppUpdates() {
+		$apps = $this->appManager->getInstalledApps();
+		foreach ($apps as $app) {
+			$update = $this->isUpdateAvailable($app);
+			if ($update !== false) {
+				$url = $this->urlGenerator->linkToRouteAbsolute('settings.AppSettings.viewApps') . '#app-' . $app;
+				$this->createNotifications($app, $update, $url);
+			}
+		}
+	}
+
+	/**
+	 * Create notifications for this app version
+	 *
+	 * @param string $app
+	 * @param string $version
+	 * @param string $url
+	 */
+	protected function createNotifications($app, $version, $url) {
+		$lastNotification = $this->config->getAppValue('updatenotification', $app, false);
+		if ($lastNotification === $version) {
+			// We already notified about this update
+			return;
+		} else if ($lastNotification !== false) {
+			// Delete old updates
+			$this->deleteOutdatedNotifications($app, $lastNotification);
+		}
+
+
+		$notification = $this->notificationManager->createNotification();
+		$notification->setApp('updatenotification')
+			->setDateTime(new \DateTime())
+			->setObject($app, $version)
+			->setSubject('update_available')
+			->setLink($url);
+
+		foreach ($this->getUsersToNotify() as $uid) {
+			$notification->setUser($uid);
+			$this->notificationManager->notify($notification);
+		}
+
+		$this->config->setAppValue('updatenotification', $app, $version);
+	}
+
+	/**
+	 * @return string[]
+	 */
+	protected function getUsersToNotify() {
+		if ($this->users !== null) {
+			return $this->users;
+		}
+
+		$notifyGroups = json_decode($this->config->getAppValue('updatenotification', 'notify_groups', '["admin"]'), true);
+		$this->users = [];
+		foreach ($notifyGroups as $group) {
+			$groupToNotify = $this->groupManager->get($group);
+			if ($groupToNotify instanceof IGroup) {
+				foreach ($groupToNotify->getUsers() as $user) {
+					$this->users[$user->getUID()] = true;
+				}
+			}
+		}
+
+		$this->users = array_keys($this->users);
+
+		return $this->users;
+	}
+
+	/**
+	 * Delete notifications for old updates
+	 *
+	 * @param string $app
+	 * @param string $version
+	 */
+	protected function deleteOutdatedNotifications($app, $version) {
+		$notification = $this->notificationManager->createNotification();
+		$notification->setApp('updatenotification')
+			->setObject($app, $version);
+		$this->notificationManager->markProcessed($notification);
+	}
+
+	/**
+	 * @return VersionCheck
+	 */
+	protected function createVersionCheck() {
+		return new VersionCheck(
+			$this->client,
+			$this->config
+		);
+	}
+
+	/**
+	 * @return string
+	 */
+	protected function getChannel() {
+		return \OC_Util::getChannel();
+	}
+
+	/**
+	 * @param string $app
+	 * @return string|false
+	 */
+	protected function isUpdateAvailable($app) {
+		return Installer::isUpdateAvailable($app);
+	}
+}
diff --git a/apps/updatenotification/lib/Notification/Notifier.php b/apps/updatenotification/lib/Notification/Notifier.php
new file mode 100644
index 00000000000..50505ef13f6
--- /dev/null
+++ b/apps/updatenotification/lib/Notification/Notifier.php
@@ -0,0 +1,108 @@
+<?php
+/**
+ * @author Joas Schilling <nickvergessen@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 OCA\UpdateNotification\Notification;
+
+
+use OCP\L10N\IFactory;
+use OCP\Notification\IManager;
+use OCP\Notification\INotification;
+use OCP\Notification\INotifier;
+
+class Notifier implements INotifier {
+
+	/** @var IManager */
+	protected $notificationManager;
+
+	/** @var IFactory */
+	protected $l10NFactory;
+
+	/** @var string[] */
+	protected $appVersions;
+
+	/**
+	 * Notifier constructor.
+	 *
+	 * @param IManager $notificationManager
+	 * @param IFactory $l10NFactory
+	 */
+	public function __construct(IManager $notificationManager, IFactory $l10NFactory) {
+		$this->notificationManager = $notificationManager;
+		$this->l10NFactory = $l10NFactory;
+		$this->appVersions = $this->getAppVersions();
+	}
+
+	/**
+	 * @param INotification $notification
+	 * @param string $languageCode The code of the language that should be used to prepare the notification
+	 * @return INotification
+	 * @throws \InvalidArgumentException When the notification was not prepared by a notifier
+	 * @since 9.0.0
+	 */
+	public function prepare(INotification $notification, $languageCode) {
+		if ($notification->getApp() !== 'updatenotification') {
+			throw new \InvalidArgumentException();
+		}
+
+		$l = $this->l10NFactory->get('updatenotification', $languageCode);
+		if ($notification->getObjectType() === 'core') {
+			$appName = $l->t('ownCloud core');
+
+			$this->updateAlreadyInstalledCheck($notification, $this->getCoreVersions());
+		} else {
+			$appInfo = $this->getAppInfo($notification->getObjectType());
+			$appName = ($appInfo === null) ? $notification->getObjectType() : $appInfo['name'];
+
+			if (isset($this->appVersions[$notification->getObjectType()])) {
+				$this->updateAlreadyInstalledCheck($notification, $this->appVersions[$notification->getObjectType()]);
+			}
+		}
+
+		$notification->setParsedSubject($l->t('Update for %1$s to version %2$s is available.', [$appName, $notification->getObjectId()]));
+		return $notification;
+	}
+
+	/**
+	 * Remove the notification and prevent rendering, when the update is installed
+	 *
+	 * @param INotification $notification
+	 * @param string $installedVersion
+	 * @throws \InvalidArgumentException When the update is already installed
+	 */
+	protected function updateAlreadyInstalledCheck(INotification $notification, $installedVersion) {
+		if (version_compare($notification->getObjectId(), $installedVersion, '<=')) {
+			$this->notificationManager->markProcessed($notification);
+			throw new \InvalidArgumentException();
+		}
+	}
+
+	protected function getCoreVersions() {
+		return implode('.', \OCP\Util::getVersion());
+	}
+
+	protected function getAppVersions() {
+		return \OC_App::getAppVersions();
+	}
+
+	protected function getAppInfo($appId) {
+		return \OC_App::getAppInfo($appId);
+	}
+}
diff --git a/apps/updatenotification/templates/admin.php b/apps/updatenotification/templates/admin.php
index c1adc8d0d3e..5974b106f72 100644
--- a/apps/updatenotification/templates/admin.php
+++ b/apps/updatenotification/templates/admin.php
@@ -39,4 +39,15 @@
 	<p>
 		<em><?php p($l->t('You can always update to a newer version / experimental channel. But you can never downgrade to a more stable channel.')); ?></em>
 	</p>
+
+
+	<p id="oca_updatenotification_groups">
+		<br />
+		<?php p($l->t('Notify members of the following groups about available updates:')); ?>
+		<input name="oca_updatenotification_groups_list" type="hidden" id="oca_updatenotification_groups_list" value="<?php p($_['notify_groups']) ?>" style="width: 400px">
+		<em class="<?php if (!in_array($currentChannel, ['daily', 'git'])) p('hidden'); ?>">
+			<br />
+			<?php p($l->t('Only notification for app updates are available, because the selected update channel for ownCloud itself does not allow notifications.')); ?>
+		</em>
+	</p>
 </form>
diff --git a/apps/updatenotification/tests/Notification/BackgroundJobTest.php b/apps/updatenotification/tests/Notification/BackgroundJobTest.php
new file mode 100644
index 00000000000..d1076e10be5
--- /dev/null
+++ b/apps/updatenotification/tests/Notification/BackgroundJobTest.php
@@ -0,0 +1,430 @@
+<?php
+/**
+ * @author Joas Schilling <nickvergessen@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 OCA\UpdateNotification\Tests\Notification;
+
+
+use OCA\UpdateNotification\Notification\BackgroundJob;
+use OCP\App\IAppManager;
+use OCP\Http\Client\IClientService;
+use OCP\IConfig;
+use OCP\IGroupManager;
+use OCP\IURLGenerator;
+use OCP\IUser;
+use OCP\Notification\IManager;
+use Test\TestCase;
+
+class BackgroundJobTest extends TestCase {
+
+	/** @var IConfig|\PHPUnit_Framework_MockObject_MockObject */
+	protected $config;
+	/** @var IManager|\PHPUnit_Framework_MockObject_MockObject */
+	protected $notificationManager;
+	/** @var IGroupManager|\PHPUnit_Framework_MockObject_MockObject */
+	protected $groupManager;
+	/** @var IAppManager|\PHPUnit_Framework_MockObject_MockObject */
+	protected $appManager;
+	/** @var IClientService|\PHPUnit_Framework_MockObject_MockObject */
+	protected $client;
+	/** @var IURLGenerator|\PHPUnit_Framework_MockObject_MockObject */
+	protected $urlGenerator;
+
+	public function setUp() {
+		parent::setUp();
+
+		$this->config = $this->getMock('OCP\IConfig');
+		$this->notificationManager = $this->getMock('OCP\Notification\IManager');
+		$this->groupManager = $this->getMock('OCP\IGroupManager');
+		$this->appManager = $this->getMock('OCP\App\IAppManager');
+		$this->client = $this->getMock('OCP\Http\Client\IClientService');
+		$this->urlGenerator = $this->getMock('OCP\IURLGenerator');
+	}
+
+	/**
+	 * @param array $methods
+	 * @return BackgroundJob|\PHPUnit_Framework_MockObject_MockObject
+	 */
+	protected function getJob(array $methods = []) {
+		if (empty($methods)) {
+			return new BackgroundJob(
+				$this->config,
+				$this->notificationManager,
+				$this->groupManager,
+				$this->appManager,
+				$this->client,
+				$this->urlGenerator
+			);
+		} {
+			return $this->getMockBuilder('OCA\UpdateNotification\Notification\BackgroundJob')
+				->setConstructorArgs([
+					$this->config,
+					$this->notificationManager,
+					$this->groupManager,
+					$this->appManager,
+					$this->client,
+					$this->urlGenerator,
+				])
+				->setMethods($methods)
+				->getMock();
+		}
+	}
+
+	public function testRun() {
+		$job = $this->getJob([
+			'checkCoreUpdate',
+			'checkAppUpdates',
+		]);
+
+		$job->expects($this->once())
+			->method('checkCoreUpdate');
+		$job->expects($this->once())
+			->method('checkAppUpdates');
+
+		$this->invokePrivate($job, 'run', [null]);
+	}
+
+	public function dataCheckCoreUpdate() {
+		return [
+			['daily', null, null],
+			['git', null, null],
+			['beta', false, null],
+			['beta', [
+				'version' => '9.2.0',
+			], '9.2.0'],
+			['stable', false, null],
+			['stable', [
+				'version' => '9.2.0',
+			], '9.2.0'],
+			['production', false, null],
+			['production', [
+				'version' => '9.2.0',
+			], '9.2.0'],
+		];
+	}
+
+	/**
+	 * @dataProvider dataCheckCoreUpdate
+	 *
+	 * @param string $channel
+	 * @param mixed $versionCheck
+	 * @param null|string $notification
+	 */
+	public function testCheckCoreUpdate($channel, $versionCheck, $notification) {
+		$job = $this->getJob([
+			'getChannel',
+			'createVersionCheck',
+			'createNotifications',
+		]);
+
+		$job->expects($this->once())
+			->method('getChannel')
+			->willReturn($channel);
+
+		if ($versionCheck === null) {
+			$job->expects($this->never())
+				->method('createVersionCheck');
+		} else {
+			$check = $this->getMockBuilder('OC\Updater\VersionCheck')
+				->disableOriginalConstructor()
+				->getMock();
+			$check->expects($this->once())
+				->method('check')
+				->willReturn($versionCheck);
+
+			$job->expects($this->once())
+				->method('createVersionCheck')
+				->willReturn($check);
+		}
+
+		if ($notification === null) {
+			$this->urlGenerator->expects($this->never())
+				->method('linkToRouteAbsolute');
+
+			$job->expects($this->never())
+				->method('createNotifications');
+		} else {
+			$this->urlGenerator->expects($this->once())
+				->method('linkToRouteAbsolute')
+				->with('settings_admin')
+				->willReturn('admin-url');
+
+			$job->expects($this->once())
+				->method('createNotifications')
+				->willReturn('core', $notification, 'admin-url#updater');
+		}
+
+		$this->invokePrivate($job, 'checkCoreUpdate');
+	}
+
+	public function dataCheckAppUpdates() {
+		return [
+			[
+				['app1', 'app2'],
+				[
+					['app1', false],
+					['app2', '1.9.2'],
+				],
+				[
+					['app2', '1.9.2', 'apps-url#app-app2'],
+				],
+			],
+		];
+	}
+
+	/**
+	 * @dataProvider dataCheckAppUpdates
+	 *
+	 * @param string[] $apps
+	 * @param array $isUpdateAvailable
+	 * @param array $notifications
+	 */
+	public function testCheckAppUpdates(array $apps, array $isUpdateAvailable, array $notifications) {
+		$job = $this->getJob([
+			'isUpdateAvailable',
+			'createNotifications',
+		]);
+
+		$this->appManager->expects($this->once())
+			->method('getInstalledApps')
+			->willReturn($apps);
+
+		$job->expects($this->exactly(sizeof($apps)))
+			->method('isUpdateAvailable')
+			->willReturnMap($isUpdateAvailable);
+
+		$this->urlGenerator->expects($this->exactly(sizeof($notifications)))
+			->method('linkToRouteAbsolute')
+			->with('settings.AppSettings.viewApps')
+			->willReturn('apps-url');
+
+		$mockedMethod = $job->expects($this->exactly(sizeof($notifications)))
+			->method('createNotifications');
+		call_user_func_array([$mockedMethod, 'withConsecutive'], $notifications);
+
+		$this->invokePrivate($job, 'checkAppUpdates');
+	}
+
+	public function dataCreateNotifications() {
+		return [
+			['app1', '1.0.0', 'link1', '1.0.0', false, false, null, null],
+			['app2', '1.0.1', 'link2', '1.0.0', '1.0.0', true, ['user1'], [['user1']]],
+			['app3', '1.0.1', 'link3', false, false, true, ['user2', 'user3'], [['user2'], ['user3']]],
+		];
+	}
+
+	/**
+	 * @dataProvider dataCreateNotifications
+	 *
+	 * @param string $app
+	 * @param string $version
+	 * @param string $url
+	 * @param string|false $lastNotification
+	 * @param string|false $callDelete
+	 * @param bool $createNotification
+	 * @param string[]|null $users
+	 * @param array|null $userNotifications
+	 */
+	public function testCreateNotifications($app, $version, $url, $lastNotification, $callDelete, $createNotification, $users, $userNotifications) {
+		$job = $this->getJob([
+			'deleteOutdatedNotifications',
+			'getUsersToNotify',
+		]);
+
+		$this->config->expects($this->once())
+			->method('getAppValue')
+			->with('updatenotification', $app, false)
+			->willReturn($lastNotification);
+
+		if ($lastNotification !== $version) {
+			$this->config->expects($this->once())
+				->method('setAppValue')
+				->with('updatenotification', $app, $version);
+		}
+
+		if ($callDelete === false) {
+			$job->expects($this->never())
+				->method('deleteOutdatedNotifications');
+		} else {
+			$job->expects($this->once())
+				->method('deleteOutdatedNotifications')
+				->with($app, $callDelete);
+		}
+
+		if ($users === null) {
+			$job->expects($this->never())
+				->method('getUsersToNotify');
+		} else {
+			$job->expects($this->once())
+				->method('getUsersToNotify')
+				->willReturn($users);
+		}
+
+		if ($createNotification) {
+			$notification = $this->getMock('OCP\Notification\INotification');
+			$notification->expects($this->once())
+				->method('setApp')
+				->with('updatenotification')
+				->willReturnSelf();
+			$notification->expects($this->once())
+				->method('setDateTime')
+				->willReturnSelf();
+			$notification->expects($this->once())
+				->method('setObject')
+				->with($app, $version)
+				->willReturnSelf();
+			$notification->expects($this->once())
+				->method('setSubject')
+				->with('update_available')
+				->willReturnSelf();
+			$notification->expects($this->once())
+				->method('setLink')
+				->with($url)
+				->willReturnSelf();
+
+			if ($userNotifications !== null) {
+				$mockedMethod = $notification->expects($this->exactly(sizeof($userNotifications)))
+					->method('setUser')
+					->willReturnSelf();
+				call_user_func_array([$mockedMethod, 'withConsecutive'], $userNotifications);
+
+				$this->notificationManager->expects($this->exactly(sizeof($userNotifications)))
+					->method('notify')
+					->willReturn($notification);
+			}
+
+			$this->notificationManager->expects($this->once())
+				->method('createNotification')
+				->willReturn($notification);
+		} else {
+			$this->notificationManager->expects($this->never())
+				->method('createNotification');
+		}
+
+		$this->invokePrivate($job, 'createNotifications', [$app, $version, $url]);
+	}
+
+	public function dataGetUsersToNotify() {
+		return [
+			[['g1', 'g2'], ['g1' => null, 'g2' => ['u1', 'u2']], ['u1', 'u2']],
+			[['g3', 'g4'], ['g3' => ['u1', 'u2'], 'g4' => ['u2', 'u3']], ['u1', 'u2', 'u3']],
+		];
+	}
+
+	/**
+	 * @dataProvider dataGetUsersToNotify
+	 * @param string[] $groups
+	 * @param array $groupUsers
+	 * @param string[] $expected
+	 */
+	public function testGetUsersToNotify($groups, array $groupUsers, array $expected) {
+		$job = $this->getJob();
+
+		$this->config->expects($this->once())
+			->method('getAppValue')
+			->with('updatenotification', 'notify_groups', '["admin"]')
+			->willReturn(json_encode($groups));
+
+		$groupMap = [];
+		foreach ($groupUsers as $gid => $uids) {
+			if ($uids === null) {
+				$group = null;
+			} else {
+				$group = $this->getGroup($gid);
+				$group->expects($this->any())
+					->method('getUsers')
+					->willReturn($this->getUsers($uids));
+			}
+			$groupMap[] = [$gid, $group];
+		}
+		$this->groupManager->expects($this->exactly(sizeof($groups)))
+			->method('get')
+			->willReturnMap($groupMap);
+
+		$result = $this->invokePrivate($job, 'getUsersToNotify');
+		$this->assertEquals($expected, $result);
+
+		// Test caching
+		$result = $this->invokePrivate($job, 'getUsersToNotify');
+		$this->assertEquals($expected, $result);
+	}
+
+	public function dataDeleteOutdatedNotifications() {
+		return [
+			['app1', '1.1.0'],
+			['app2', '1.2.0'],
+		];
+	}
+
+	/**
+	 * @dataProvider dataDeleteOutdatedNotifications
+	 * @param string $app
+	 * @param string $version
+	 */
+	public function testDeleteOutdatedNotifications($app, $version) {
+		$notification = $this->getMock('OCP\Notification\INotification');
+		$notification->expects($this->once())
+			->method('setApp')
+			->with('updatenotification')
+			->willReturnSelf();
+		$notification->expects($this->once())
+			->method('setObject')
+			->with($app, $version)
+			->willReturnSelf();
+
+		$this->notificationManager->expects($this->once())
+			->method('createNotification')
+			->willReturn($notification);
+		$this->notificationManager->expects($this->once())
+			->method('markProcessed')
+			->with($notification);
+
+		$job = $this->getJob();
+		$this->invokePrivate($job, 'deleteOutdatedNotifications', [$app, $version]);
+	}
+
+	/**
+	 * @param string[] $userIds
+	 * @return IUser[]|\PHPUnit_Framework_MockObject_MockObject[]
+	 */
+	protected function getUsers(array $userIds) {
+		$users = [];
+		foreach ($userIds as $uid) {
+			$user = $this->getMock('OCP\IUser');
+			$user->expects($this->any())
+				->method('getUID')
+				->willReturn($uid);
+			$users[] = $user;
+		}
+		return $users;
+	}
+
+	/**
+	 * @param $gid
+	 * @return \OCP\IGroup|\PHPUnit_Framework_MockObject_MockObject
+	 */
+	protected function getGroup($gid) {
+		$group = $this->getMock('OCP\IGroup');
+		$group->expects($this->any())
+			->method('getGID')
+			->willReturn($gid);
+		return $group;
+	}
+}
diff --git a/apps/updatenotification/tests/Notification/NotifierTest.php b/apps/updatenotification/tests/Notification/NotifierTest.php
new file mode 100644
index 00000000000..d85cf3e7072
--- /dev/null
+++ b/apps/updatenotification/tests/Notification/NotifierTest.php
@@ -0,0 +1,105 @@
+<?php
+/**
+ * @author Joas Schilling <nickvergessen@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 OCA\UpdateNotification\Tests\Notification;
+
+
+use OCA\UpdateNotification\Notification\Notifier;
+use OCP\L10N\IFactory;
+use OCP\Notification\IManager;
+use Test\TestCase;
+
+class NotifierTest extends TestCase {
+
+	/** @var IManager|\PHPUnit_Framework_MockObject_MockObject */
+	protected $notificationManager;
+	/** @var IFactory|\PHPUnit_Framework_MockObject_MockObject */
+	protected $l10nFactory;
+
+	public function setUp() {
+		parent::setUp();
+
+		$this->notificationManager = $this->getMock('OCP\Notification\IManager');
+		$this->l10nFactory = $this->getMock('OCP\L10n\IFactory');
+	}
+
+	/**
+	 * @param array $methods
+	 * @return Notifier|\PHPUnit_Framework_MockObject_MockObject
+	 */
+	protected function getNotifier(array $methods = []) {
+		if (empty($methods)) {
+			return new Notifier(
+				$this->notificationManager,
+				$this->l10nFactory
+			);
+		} {
+			return $this->getMockBuilder('OCA\UpdateNotification\Notification\Notifier')
+				->setConstructorArgs([
+					$this->notificationManager,
+					$this->l10nFactory,
+				])
+				->setMethods($methods)
+				->getMock();
+		}
+	}
+
+	public function dataUpdateAlreadyInstalledCheck() {
+		return [
+			['1.1.0', '1.0.0', false],
+			['1.1.0', '1.1.0', true],
+			['1.1.0', '1.2.0', true],
+		];
+	}
+
+	/**
+	 * @dataProvider dataUpdateAlreadyInstalledCheck
+	 *
+	 * @param string $versionNotification
+	 * @param string $versionInstalled
+	 * @param bool $exception
+	 */
+	public function testUpdateAlreadyInstalledCheck($versionNotification, $versionInstalled, $exception) {
+		$notifier = $this->getNotifier();
+
+		$notification = $this->getMock('OCP\Notification\INotification');
+		$notification->expects($this->once())
+			->method('getObjectId')
+			->willReturn($versionNotification);
+
+		if ($exception) {
+			$this->notificationManager->expects($this->once())
+				->method('markProcessed')
+				->with($notification);
+		} else {
+			$this->notificationManager->expects($this->never())
+				->method('markProcessed');
+		}
+
+		try {
+			$this->invokePrivate($notifier, 'updateAlreadyInstalledCheck', [$notification, $versionInstalled]);
+			$this->assertFalse($exception);
+		} catch (\Exception $e) {
+			$this->assertTrue($exception);
+			$this->assertInstanceOf('InvalidArgumentException', $e);
+		}
+	}
+}