New user management classes

lib/user/backend.php

@@ -58,7 +58,7 @@ abstract class OC_User_Backend implements OC_User_Interface {
 
 	/**
 	* @brief Get all supported actions
-	* @returns bitwise-or'ed actions
+	* @return int bitwise-or'ed actions
 	*
 	* Returns the supported actions as int to be
 	* compared with OC_USER_BACKEND_CREATE_USER etc.
@@ -76,8 +76,8 @@ abstract class OC_User_Backend implements OC_User_Interface {
 
 	/**
 	* @brief Check if backend implements actions
-	* @param $actions bitwise-or'ed actions
-	* @returns boolean
+	* @param int $actions bitwise-or'ed actions
+	* @return boolean
 	*
 	* Returns the supported actions as int to be
 	* compared with OC_USER_BACKEND_CREATE_USER etc.
@@ -87,12 +87,12 @@ abstract class OC_User_Backend implements OC_User_Interface {
 	}
 
 	/**
-	* @brief delete a user
-	* @param $uid The username of the user to delete
-	* @returns true/false
-	*
-	* Deletes a user
-	*/
+	 * @brief delete a user
+	 * @param string $uid The username of the user to delete
+	 * @return bool
+	 *
+	 * Deletes a user
+	 */
 	public function deleteUser( $uid ) {
 		return false;
 	}
@@ -127,8 +127,8 @@ abstract class OC_User_Backend implements OC_User_Interface {
 
 	/**
 	 * @brief get display name of the user
-	 * @param $uid user ID of the user
-	 * @return display name
+	 * @param string $uid user ID of the user
+	 * @return string display name
 	 */
 	public function getDisplayName($uid) {
 		return $uid;

lib/user/dummy.php

@@ -1,114 +1,118 @@
 <?php
 
 /**
-* ownCloud
-*
-* @author Frank Karlitschek
-* @copyright 2012 Frank Karlitschek frank@owncloud.org
-*
-* This library is free software; you can redistribute it and/or
-* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
-* License as published by the Free Software Foundation; either
-* version 3 of the License, or any later version.
-*
-* This library 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 along with this library.  If not, see <http://www.gnu.org/licenses/>.
-*
-*/
+ * ownCloud
+ *
+ * @author Frank Karlitschek
+ * @copyright 2012 Frank Karlitschek frank@owncloud.org
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library 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 along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
 
 /**
  * dummy user backend, does not keep state, only for testing use
  */
 class OC_User_Dummy extends OC_User_Backend {
-	private $users=array();
+	private $users = array();
+
 	/**
-		* @brief Create a new user
-		* @param $uid The username of the user to create
-		* @param $password The password of the new user
-		* @returns true/false
-		*
-		* Creates a new user. Basic checking of username is done in OC_User
-		* itself, not in its subclasses.
-		*/
+	 * @brief Create a new user
+	 * @param string $uid The username of the user to create
+	 * @param string $password The password of the new user
+	 * @return bool
+	 *
+	 * Creates a new user. Basic checking of username is done in OC_User
+	 * itself, not in its subclasses.
+	 */
 	public function createUser($uid, $password) {
-		if(isset($this->users[$uid])) {
+		if (isset($this->users[$uid])) {
 			return false;
-		}else{
-			$this->users[$uid]=$password;
+		} else {
+			$this->users[$uid] = $password;
 			return true;
 		}
 	}
 
 	/**
-		* @brief delete a user
-		* @param $uid The username of the user to delete
-		* @returns true/false
-		*
-		* Deletes a user
-		*/
-	public function deleteUser( $uid ) {
-		if(isset($this->users[$uid])) {
+	 * @brief delete a user
+	 * @param string $uid The username of the user to delete
+	 * @return bool
+	 *
+	 * Deletes a user
+	 */
+	public function deleteUser($uid) {
+		if (isset($this->users[$uid])) {
 			unset($this->users[$uid]);
 			return true;
-		}else{
+		} else {
 			return false;
 		}
 	}
 
 	/**
-		* @brief Set password
-		* @param $uid The username
-		* @param $password The new password
-		* @returns true/false
-		*
-		* Change the password of a user
-		*/
+	 * @brief Set password
+	 * @param string $uid The username
+	 * @param string $password The new password
+	 * @return bool
+	 *
+	 * Change the password of a user
+	 */
 	public function setPassword($uid, $password) {
-		if(isset($this->users[$uid])) {
-			$this->users[$uid]=$password;
+		if (isset($this->users[$uid])) {
+			$this->users[$uid] = $password;
 			return true;
-		}else{
+		} else {
 			return false;
 		}
 	}
 
 	/**
-		* @brief Check if the password is correct
-		* @param $uid The username
-		* @param $password The password
-		* @returns string
-		*
-		* Check if the password is correct without logging in the user
-		* returns the user id or false
-		*/
+	 * @brief Check if the password is correct
+	 * @param string $uid The username
+	 * @param string $password The password
+	 * @return string
+	 *
+	 * Check if the password is correct without logging in the user
+	 * returns the user id or false
+	 */
 	public function checkPassword($uid, $password) {
-		if(isset($this->users[$uid])) {
-			return ($this->users[$uid]==$password);
-		}else{
+		if (isset($this->users[$uid])) {
+			return ($this->users[$uid] == $password);
+		} else {
 			return false;
 		}
 	}
 
 	/**
-		* @brief Get a list of all users
-		* @returns array with all uids
-		*
-		* Get a list of all users.
-		*/
+	 * @brief Get a list of all users
+	 * @param string $search
+	 * @param int $limit
+	 * @param int $offset
+	 * @return array with all uids
+	 *
+	 * Get a list of all users.
+	 */
 	public function getUsers($search = '', $limit = null, $offset = null) {
 		return array_keys($this->users);
 	}
 
 	/**
-		* @brief check if a user exists
-		* @param string $uid the username
-		* @return boolean
-		*/
+	 * @brief check if a user exists
+	 * @param string $uid the username
+	 * @return boolean
+	 */
 	public function userExists($uid) {
 		return isset($this->users[$uid]);
 	}

lib/user/manager.php

@@ -0,0 +1,189 @@
+<?php
+
+/**
+ * Copyright (c) 2013 Robin Appelman <icewind@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+namespace OC\User;
+
+use OC\Hooks\PublicEmitter;
+
+/**
+ * Class Manager
+ *
+ * Hooks available in scope \OC\User:
+ * - preSetPassword(\OC\User\User $user, string $password, string $recoverPassword)
+ * - postSetPassword(\OC\User\User $user, string $password, string $recoverPassword)
+ * - preDelete(\OC\User\User $user)
+ * - postDelete(\OC\User\User $user)
+ * - preCreateUser(string $uid, string $password)
+ * - postCreateUser(\OC\User\User $user)
+ *
+ * @package OC\User
+ */
+class Manager extends PublicEmitter {
+	/**
+	 * @var \OC_User_Backend[] $backends
+	 */
+	private $backends = array();
+
+	/**
+	 * @param \OC_User_Backend $backend
+	 */
+	public function registerBackend($backend) {
+		$this->backends[] = $backend;
+	}
+
+	/**
+	 * @param \OC_User_Backend $backend
+	 */
+	public function removeBackend($backend) {
+		if (($i = array_search($backend, $this->backends)) !== false) {
+			unset($this->backends[$i]);
+		}
+	}
+
+	public function clearBackends() {
+		$this->backends = array();
+	}
+
+	/**
+	 * @param string $uid
+	 * @return \OC\User\User
+	 */
+	public function get($uid) {
+		foreach ($this->backends as $backend) {
+			if ($backend->userExists($uid)) {
+				return new User($uid, $backend);
+			}
+		}
+		return null;
+	}
+
+	/**
+	 * @param string $uid
+	 * @return bool
+	 */
+	public function userExists($uid) {
+		foreach ($this->backends as $backend) {
+			if ($backend->userExists($uid)) {
+				return true;
+			}
+		}
+		return false;
+	}
+
+	/**
+	 * search by user id
+	 *
+	 * @param string $pattern
+	 * @param int $limit
+	 * @param int $offset
+	 * @return \OC\User\User[]
+	 */
+	public function search($pattern, $limit = null, $offset = null) {
+		$users = array();
+		foreach ($this->backends as $backend) {
+			$backendUsers = $backend->getUsers($pattern, $limit, $offset);
+			if (is_array($backendUsers)) {
+				foreach ($backendUsers as $uid) {
+					$users[] = new User($uid, $backend);
+					if (!is_null($limit)) {
+						$limit--;
+					}
+					if (!is_null($offset) and $offset > 0) {
+						$offset--;
+					}
+
+				}
+			}
+		}
+
+		usort($users, function ($a, $b) {
+			/**
+			 * @var \OC\User\User $a
+			 * @var \OC\User\User $b
+			 */
+			return strcmp($a->getUID(), $b->getUID());
+		});
+		return $users;
+	}
+
+	/**
+	 * search by displayName
+	 *
+	 * @param string $pattern
+	 * @param int $limit
+	 * @param int $offset
+	 * @return \OC\User\User[]
+	 */
+	public function searchDisplayName($pattern, $limit = null, $offset = null) {
+		$users = array();
+		foreach ($this->backends as $backend) {
+			$backendUsers = $backend->getDisplayNames($pattern, $limit, $offset);
+			if (is_array($backendUsers)) {
+				foreach ($backendUsers as $uid => $displayName) {
+					$users[] = new User($uid, $backend);
+					if (!is_null($limit)) {
+						$limit--;
+					}
+					if (!is_null($offset) and $offset > 0) {
+						$offset--;
+					}
+
+				}
+			}
+		}
+
+		usort($users, function ($a, $b) {
+			/**
+			 * @var \OC\User\User $a
+			 * @var \OC\User\User $b
+			 */
+			return strcmp($a->getDisplayName(), $b->getDisplayName());
+		});
+		return $users;
+	}
+
+	/**
+	 * @param string $uid
+	 * @param string $password
+	 * @throws \Exception
+	 * @return bool | \OC\User\User the created user of false
+	 */
+	public function createUser($uid, $password) {
+		// Check the name for bad characters
+		// Allowed are: "a-z", "A-Z", "0-9" and "_.@-"
+		if (preg_match('/[^a-zA-Z0-9 _\.@\-]/', $uid)) {
+			throw new \Exception('Only the following characters are allowed in a username:'
+				. ' "a-z", "A-Z", "0-9", and "_.@-"');
+		}
+		// No empty username
+		if (trim($uid) == '') {
+			throw new \Exception('A valid username must be provided');
+		}
+		// No empty password
+		if (trim($password) == '') {
+			throw new \Exception('A valid password must be provided');
+		}
+
+		// Check if user already exists
+		if ($this->userExists($uid)) {
+			throw new \Exception('The username is already being used');
+		}
+
+		$this->emit('\OC\User', 'preCreateUser', array($uid, $password));
+		foreach ($this->backends as $backend) {
+			if ($backend->implementsActions(\OC_USER_BACKEND_CREATE_USER)) {
+				$backend->createUser($uid, $password);
+				$user = new User($uid, $backend);
+				$this->emit('\OC\User', 'postCreateUser', array($user));
+				return $user;
+			}
+		}
+		return false;
+	}
+}

lib/user/session.php

@@ -0,0 +1,161 @@
+<?php
+
+/**
+ * Copyright (c) 2013 Robin Appelman <icewind@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+namespace OC\User;
+
+use OC\Hooks\Emitter;
+
+/**
+ * Class Session
+ *
+ * Hooks available in scope \OC\User:
+ * - preSetPassword(\OC\User\User $user, string $password, string $recoverPassword)
+ * - postSetPassword(\OC\User\User $user, string $password, string $recoverPassword)
+ * - preDelete(\OC\User\User $user)
+ * - postDelete(\OC\User\User $user)
+ * - preCreateUser(string $uid, string $password)
+ * - postCreateUser(\OC\User\User $user)
+ * - preLogin(string $user, string $password)
+ * - postLogin(\OC\User\User $user)
+ * - logout()
+ *
+ * @package OC\User
+ */
+class Session implements Emitter {
+	/**
+	 * @var \OC\User\Manager $manager
+	 */
+	private $manager;
+
+	/**
+	 * @var \OC\Session\Session $session
+	 */
+	private $session;
+
+	/**
+	 * @var \OC\User\User $activeUser
+	 */
+	protected $activeUser;
+
+	/**
+	 * @param \OC\User\Manager $manager
+	 * @param \OC\Session\Session $session
+	 */
+	public function __construct($manager, $session) {
+		$this->manager = $manager;
+		$this->session = $session;
+	}
+
+	/**
+	 * @param string $scope
+	 * @param string $method
+	 * @param callable $callback
+	 */
+	public function listen($scope, $method, $callback) {
+		$this->manager->listen($scope, $method, $callback);
+	}
+
+	/**
+	 * @param string $scope optional
+	 * @param string $method optional
+	 * @param callable $callback optional
+	 */
+	public function removeListener($scope = null, $method = null, $callback = null) {
+		$this->manager->removeListener($scope, $method, $callback);
+	}
+
+	/**
+	 * @return \OC\User\Manager
+	 */
+	public function getManager() {
+		return $this->manager;
+	}
+
+	/**
+	 * set the currently active user
+	 *
+	 * @param \OC\User\User $user
+	 */
+	public function setUser($user) {
+		if (is_null($user)) {
+			$this->session->remove('user_id');
+		} else {
+			$this->session->set('user_id', $user->getUID());
+		}
+		$this->activeUser = $user;
+	}
+
+	/**
+	 * get the current active user
+	 *
+	 * @return \OC\User\User
+	 */
+	public function getUser() {
+		if ($this->activeUser) {
+			return $this->activeUser;
+		} else {
+			$uid = $this->session->get('user_id');
+			if ($uid) {
+				$this->activeUser = $this->manager->get($uid);
+				return $this->activeUser;
+			} else {
+				return null;
+			}
+		}
+	}
+
+	public function login($uid, $password) {
+		$this->manager->emit('\OC\User', 'preLogin', array($uid, $password));
+		$user = $this->manager->get($uid);
+		if ($user) {
+			$result = $user->checkPassword($password);
+			if ($result and $user->isEnabled()) {
+				$this->manager->emit('\OC\User', 'postLogin', array($user));
+				$this->setUser($user);
+				return true;
+			} else {
+				return false;
+			}
+		} else {
+			return false;
+		}
+	}
+
+	public function logout() {
+		$this->manager->emit('\OC\User', 'logout');
+		$this->setUser(null);
+		$this->unsetMagicInCookie();
+	}
+
+	/**
+	 * Set cookie value to use in next page load
+	 *
+	 * @param string $username username to be set
+	 * @param string $token
+	 */
+	public function setMagicInCookie($username, $token) {
+		$secure_cookie = \OC_Config::getValue("forcessl", false); //TODO: DI for cookies and OC_Config
+		$expires = time() + \OC_Config::getValue('remember_login_cookie_lifetime', 60 * 60 * 24 * 15);
+		setcookie("oc_username", $username, $expires, OC::$WEBROOT, '', $secure_cookie);
+		setcookie("oc_token", $token, $expires, OC::$WEBROOT, '', $secure_cookie, true);
+		setcookie("oc_remember_login", true, $expires, OC::$WEBROOT, '', $secure_cookie);
+	}
+
+	/**
+	 * @brief Remove cookie for "remember username"
+	 */
+	public function unsetMagicInCookie() {
+		unset($_COOKIE["oc_username"]); //TODO: DI
+		unset($_COOKIE["oc_token"]);
+		unset($_COOKIE["oc_remember_login"]);
+		setcookie("oc_username", null, -1);
+		setcookie("oc_token", null, -1);
+		setcookie("oc_remember_login", null, -1);
+	}
+}

lib/user/user.php

@@ -0,0 +1,177 @@
+<?php
+
+/**
+ * Copyright (c) 2013 Robin Appelman <icewind@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+namespace OC\User;
+
+use OC\Hooks\Emitter;
+
+class User {
+	/**
+	 * @var string $uid
+	 */
+	private $uid;
+
+	/**
+	 * @var string $displayName
+	 */
+	private $displayName;
+
+	/**
+	 * @var \OC_User_Backend $backend
+	 */
+	private $backend;
+
+	/**
+	 * @var bool $enabled
+	 */
+	private $enabled;
+
+	/**
+	 * @var Emitter | Manager $emitter
+	 */
+	private $emitter;
+
+	/**
+	 * @param string $uid
+	 * @param \OC_User_Backend $backend
+	 * @param Emitter $emitter
+	 */
+	public function __construct($uid, $backend, $emitter = null) {
+		$this->uid = $uid;
+		if ($backend->implementsActions(OC_USER_BACKEND_GET_DISPLAYNAME)) {
+			$this->displayName = $backend->getDisplayName($uid);
+		} else {
+			$this->displayName = $uid;
+		}
+		$this->backend = $backend;
+		$this->emitter = $emitter;
+		$enabled = \OC_Preferences::getValue($uid, 'core', 'enabled', 'true'); //TODO: DI for OC_Preferences
+		$this->enabled = ($enabled === 'true');
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getUID() {
+		return $this->uid;
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getDisplayName() {
+		return $this->displayName;
+	}
+
+	/**
+	 * @param string $displayName
+	 * @return bool
+	 */
+	public function setDisplayName($displayName) {
+		if ($this->canChangeDisplayName()) {
+			$this->displayName = $displayName;
+			$this->backend->setDisplayName($this->uid, $displayName);
+			return true;
+		} else {
+			return false;
+		}
+	}
+
+	/**
+	 * @return bool
+	 */
+	public function delete() {
+		if ($this->emitter) {
+			$this->emitter->emit('\OC\User', 'preDelete', array($this));
+		}
+		$result = $this->backend->deleteUser($this->uid);
+		if ($this->emitter) {
+			$this->emitter->emit('\OC\User', 'postDelete', array($this));
+		}
+		return !($result === false);
+	}
+
+	/**
+	 * @param $password
+	 * @return bool
+	 */
+	public function checkPassword($password) {
+		if ($this->backend->implementsActions(\OC_USER_BACKEND_CHECK_PASSWORD)) {
+			$result = $this->backend->checkPassword($this->uid, $password);
+			if ($result !== false) {
+				$this->uid = $result;
+			}
+			return !($result === false);
+		} else {
+			return false;
+		}
+	}
+
+	/**
+	 * @param string $password
+	 * @param string $recoveryPassword for the encryption app to reset encryption keys
+	 * @return bool
+	 */
+	public function setPassword($password, $recoveryPassword) {
+		if ($this->backend->implementsActions(\OC_USER_BACKEND_SET_PASSWORD)) {
+			if ($this->emitter) {
+				$this->emitter->emit('\OC\User', 'preSetPassword', array($this, $password, $recoveryPassword));
+			}
+			$result = $this->backend->setPassword($this->uid, $password);
+			if ($this->emitter) {
+				$this->emitter->emit('\OC\User', 'postSetPassword', array($this, $password, $recoveryPassword));
+			}
+			return !($result === false);
+		} else {
+			return false;
+		}
+	}
+
+	/**
+	 * get the users home folder to mount
+	 *
+	 * @return string
+	 */
+	public function getHome() {
+		if ($this->backend->implementsActions(\OC_USER_BACKEND_GET_HOME)) {
+			return $this->backend->getHome($this->uid);
+		}
+		return \OC_Config::getValue("datadirectory", \OC::$SERVERROOT . "/data") . '/' . $this->uid; //TODO switch to Config object once implemented
+	}
+
+	/**
+	 * @return bool
+	 */
+	public function canChangePassword() {
+		return $this->backend->implementsActions(\OC_USER_BACKEND_SET_PASSWORD);
+	}
+
+	/**
+	 * @return bool
+	 */
+	public function canChangeDisplayName() {
+		return $this->backend->implementsActions(\OC_USER_BACKEND_SET_DISPLAYNAME);
+	}
+
+	/**
+	 * @return bool
+	 */
+	public function isEnabled() {
+		return $this->enabled;
+	}
+
+	/**
+	 * @param bool $enabled
+	 */
+	public function setEnabled($enabled) {
+		$this->enabled = $enabled;
+		$enabled = ($enabled) ? 'true' : 'false';
+		\OC_Preferences::setValue($this->uid, 'core', 'enabled', $enabled);
+	}
+}

tests/lib/user/backend.php

@@ -0,0 +1,99 @@
+<?php
+/**
+* ownCloud
+*
+* @author Robin Appelman
+* @copyright 2012 Robin Appelman icewind@owncloud.com
+*
+* This library is free software; you can redistribute it and/or
+* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+* License as published by the Free Software Foundation; either
+* version 3 of the License, or any later version.
+*
+* This library 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 along with this library.  If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+/**
+ * Abstract class to provide the basis of backend-specific unit test classes.
+ *
+ * All subclasses MUST assign a backend property in setUp() which implements
+ * user operations (add, remove, etc.). Test methods in this class will then be
+ * run on each separate subclass and backend therein.
+ *
+ * For an example see /tests/lib/user/dummy.php
+ */
+
+abstract class Test_User_Backend extends PHPUnit_Framework_TestCase {
+	/**
+	 * @var OC_User_Backend $backend
+	 */
+	protected $backend;
+
+	/**
+	 * get a new unique user name
+	 * test cases can override this in order to clean up created user
+	 * @return array
+	 */
+	public function getUser() {
+		return uniqid('test_');
+	}
+
+	public function testAddRemove() {
+		//get the number of groups we start with, in case there are exising groups
+		$startCount=count($this->backend->getUsers());
+
+		$name1=$this->getUser();
+		$name2=$this->getUser();
+		$this->backend->createUser($name1, '');
+		$count=count($this->backend->getUsers())-$startCount;
+		$this->assertEquals(1, $count);
+		$this->assertTrue((array_search($name1, $this->backend->getUsers())!==false));
+		$this->assertFalse((array_search($name2, $this->backend->getUsers())!==false));
+		$this->backend->createUser($name2, '');
+		$count=count($this->backend->getUsers())-$startCount;
+		$this->assertEquals(2, $count);
+		$this->assertTrue((array_search($name1, $this->backend->getUsers())!==false));
+		$this->assertTrue((array_search($name2, $this->backend->getUsers())!==false));
+
+		$this->backend->deleteUser($name2);
+		$count=count($this->backend->getUsers())-$startCount;
+		$this->assertEquals(1, $count);
+		$this->assertTrue((array_search($name1, $this->backend->getUsers())!==false));
+		$this->assertFalse((array_search($name2, $this->backend->getUsers())!==false));
+	}
+	
+	public function testLogin() {
+		$name1=$this->getUser();
+		$name2=$this->getUser();
+		
+		$this->assertFalse($this->backend->userExists($name1));
+		$this->assertFalse($this->backend->userExists($name2));
+		
+		$this->backend->createUser($name1, 'pass1');
+		$this->backend->createUser($name2, 'pass2');
+		
+		$this->assertTrue($this->backend->userExists($name1));
+		$this->assertTrue($this->backend->userExists($name2));
+		
+		$this->assertTrue($this->backend->checkPassword($name1, 'pass1'));
+		$this->assertTrue($this->backend->checkPassword($name2, 'pass2'));
+		
+		$this->assertFalse($this->backend->checkPassword($name1, 'pass2'));
+		$this->assertFalse($this->backend->checkPassword($name2, 'pass1'));
+		
+		$this->assertFalse($this->backend->checkPassword($name1, 'dummy'));
+		$this->assertFalse($this->backend->checkPassword($name2, 'foobar'));
+		
+		$this->backend->setPassword($name1, 'newpass1');
+		$this->assertFalse($this->backend->checkPassword($name1, 'pass1'));
+		$this->assertTrue($this->backend->checkPassword($name1, 'newpass1'));
+		$this->assertFalse($this->backend->checkPassword($name2, 'newpass1'));
+	}
+}

tests/lib/user/database.php

@@ -0,0 +1,44 @@
+<?php
+/**
+* ownCloud
+*
+* @author Robin Appelman
+* @copyright 2012 Robin Appelman icewind@owncloud.com
+*
+* This library is free software; you can redistribute it and/or
+* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+* License as published by the Free Software Foundation; either
+* version 3 of the License, or any later version.
+*
+* This library 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 along with this library.  If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+class Test_User_Database extends Test_User_Backend {
+	/**
+	 * get a new unique user name
+	 * test cases can override this in order to clean up created user
+	 * @return array
+	 */
+	public function getUser() {
+		$user=uniqid('test_');
+		$this->users[]=$user;
+		return $user;
+	}
+	
+	public function setUp() {
+		$this->backend=new OC_User_Dummy();
+	}
+	
+	public function tearDown() {
+		foreach($this->users as $user) {
+			$this->backend->deleteUser($user);
+		}
+	}
+}

tests/lib/user/dummy.php

@@ -0,0 +1,27 @@
+<?php
+/**
+* ownCloud
+*
+* @author Robin Appelman
+* @copyright 2012 Robin Appelman icewind@owncloud.com
+*
+* This library is free software; you can redistribute it and/or
+* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+* License as published by the Free Software Foundation; either
+* version 3 of the License, or any later version.
+*
+* This library 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 along with this library.  If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+class Test_User_Dummy extends Test_User_Backend {
+	public function setUp() {
+		$this->backend=new OC_User_Dummy();
+	}
+}

tests/lib/user/manager.php

@@ -0,0 +1,304 @@
+<?php
+
+/**
+ * Copyright (c) 2013 Robin Appelman <icewind@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+namespace Test\User;
+
+class Manager extends \PHPUnit_Framework_TestCase {
+	public function testUserExistsSingleBackendExists() {
+		/**
+		 * @var \OC_User_Dummy | \PHPUnit_Framework_MockObject_MockObject $backend
+		 */
+		$backend = $this->getMock('\OC_User_Dummy');
+		$backend->expects($this->once())
+			->method('userExists')
+			->with($this->equalTo('foo'))
+			->will($this->returnValue(true));
+
+		$manager = new \OC\User\Manager();
+		$manager->registerBackend($backend);
+
+		$this->assertTrue($manager->userExists('foo'));
+	}
+
+	public function testUserExistsSingleBackendNotExists() {
+		/**
+		 * @var \OC_User_Dummy | \PHPUnit_Framework_MockObject_MockObject $backend
+		 */
+		$backend = $this->getMock('\OC_User_Dummy');
+		$backend->expects($this->once())
+			->method('userExists')
+			->with($this->equalTo('foo'))
+			->will($this->returnValue(false));
+
+		$manager = new \OC\User\Manager();
+		$manager->registerBackend($backend);
+
+		$this->assertFalse($manager->userExists('foo'));
+	}
+
+	public function testUserExistsNoBackends() {
+		$manager = new \OC\User\Manager();
+
+		$this->assertFalse($manager->userExists('foo'));
+	}
+
+	public function testUserExistsTwoBackendsSecondExists() {
+		/**
+		 * @var \OC_User_Dummy | \PHPUnit_Framework_MockObject_MockObject $backend1
+		 */
+		$backend1 = $this->getMock('\OC_User_Dummy');
+		$backend1->expects($this->once())
+			->method('userExists')
+			->with($this->equalTo('foo'))
+			->will($this->returnValue(false));
+
+		/**
+		 * @var \OC_User_Dummy | \PHPUnit_Framework_MockObject_MockObject $backend2
+		 */
+		$backend2 = $this->getMock('\OC_User_Dummy');
+		$backend2->expects($this->once())
+			->method('userExists')
+			->with($this->equalTo('foo'))
+			->will($this->returnValue(true));
+
+		$manager = new \OC\User\Manager();
+		$manager->registerBackend($backend1);
+		$manager->registerBackend($backend2);
+
+		$this->assertTrue($manager->userExists('foo'));
+	}
+
+	public function testUserExistsTwoBackendsFirstExists() {
+		/**
+		 * @var \OC_User_Dummy | \PHPUnit_Framework_MockObject_MockObject $backend1
+		 */
+		$backend1 = $this->getMock('\OC_User_Dummy');
+		$backend1->expects($this->once())
+			->method('userExists')
+			->with($this->equalTo('foo'))
+			->will($this->returnValue(true));
+
+		/**
+		 * @var \OC_User_Dummy | \PHPUnit_Framework_MockObject_MockObject $backend2
+		 */
+		$backend2 = $this->getMock('\OC_User_Dummy');
+		$backend2->expects($this->never())
+			->method('userExists');
+
+		$manager = new \OC\User\Manager();
+		$manager->registerBackend($backend1);
+		$manager->registerBackend($backend2);
+
+		$this->assertTrue($manager->userExists('foo'));
+	}
+
+	public function testGetOneBackendExists() {
+		/**
+		 * @var \OC_User_Dummy | \PHPUnit_Framework_MockObject_MockObject $backend
+		 */
+		$backend = $this->getMock('\OC_User_Dummy');
+		$backend->expects($this->once())
+			->method('userExists')
+			->with($this->equalTo('foo'))
+			->will($this->returnValue(true));
+
+		$manager = new \OC\User\Manager();
+		$manager->registerBackend($backend);
+
+		$this->assertEquals('foo', $manager->get('foo')->getUID());
+	}
+
+	public function testGetOneBackendNotExists() {
+		/**
+		 * @var \OC_User_Dummy | \PHPUnit_Framework_MockObject_MockObject $backend
+		 */
+		$backend = $this->getMock('\OC_User_Dummy');
+		$backend->expects($this->once())
+			->method('userExists')
+			->with($this->equalTo('foo'))
+			->will($this->returnValue(false));
+
+		$manager = new \OC\User\Manager();
+		$manager->registerBackend($backend);
+
+		$this->assertEquals(null, $manager->get('foo'));
+	}
+
+	public function testSearchOneBackend() {
+		/**
+		 * @var \OC_User_Dummy | \PHPUnit_Framework_MockObject_MockObject $backend
+		 */
+		$backend = $this->getMock('\OC_User_Dummy');
+		$backend->expects($this->once())
+			->method('getUsers')
+			->with($this->equalTo('fo'))
+			->will($this->returnValue(array('foo', 'afoo')));
+
+		$manager = new \OC\User\Manager();
+		$manager->registerBackend($backend);
+
+		$result = $manager->search('fo');
+		$this->assertEquals(2, count($result));
+		$this->assertEquals('afoo', $result[0]->getUID());
+		$this->assertEquals('foo', $result[1]->getUID());
+	}
+
+	public function testSearchTwoBackendLimitOffset() {
+		/**
+		 * @var \OC_User_Dummy | \PHPUnit_Framework_MockObject_MockObject $backend1
+		 */
+		$backend1 = $this->getMock('\OC_User_Dummy');
+		$backend1->expects($this->once())
+			->method('getUsers')
+			->with($this->equalTo('fo'), $this->equalTo(3), $this->equalTo(1))
+			->will($this->returnValue(array('foo1', 'foo2')));
+
+		/**
+		 * @var \OC_User_Dummy | \PHPUnit_Framework_MockObject_MockObject $backend2
+		 */
+		$backend2 = $this->getMock('\OC_User_Dummy');
+		$backend2->expects($this->once())
+			->method('getUsers')
+			->with($this->equalTo('fo'), $this->equalTo(1), $this->equalTo(0))
+			->will($this->returnValue(array('foo3')));
+
+		$manager = new \OC\User\Manager();
+		$manager->registerBackend($backend1);
+		$manager->registerBackend($backend2);
+
+		$result = $manager->search('fo', 3, 1);
+		$this->assertEquals(3, count($result));
+		$this->assertEquals('foo1', $result[0]->getUID());
+		$this->assertEquals('foo2', $result[1]->getUID());
+		$this->assertEquals('foo3', $result[2]->getUID());
+	}
+
+	public function testCreateUserSingleBackendNotExists() {
+		/**
+		 * @var \OC_User_Dummy | \PHPUnit_Framework_MockObject_MockObject $backend
+		 */
+		$backend = $this->getMock('\OC_User_Dummy');
+		$backend->expects($this->any())
+			->method('implementsActions')
+			->will($this->returnValue(true));
+
+		$backend->expects($this->once())
+			->method('createUser')
+			->with($this->equalTo('foo'), $this->equalTo('bar'));
+
+		$backend->expects($this->once())
+			->method('userExists')
+			->with($this->equalTo('foo'))
+			->will($this->returnValue(false));
+
+		$manager = new \OC\User\Manager();
+		$manager->registerBackend($backend);
+
+		$user = $manager->createUser('foo', 'bar');
+		$this->assertEquals('foo', $user->getUID());
+	}
+
+	/**
+	 * @expectedException \Exception
+	 */
+	public function testCreateUserSingleBackendExists() {
+		/**
+		 * @var \OC_User_Dummy | \PHPUnit_Framework_MockObject_MockObject $backend
+		 */
+		$backend = $this->getMock('\OC_User_Dummy');
+		$backend->expects($this->any())
+			->method('implementsActions')
+			->will($this->returnValue(true));
+
+		$backend->expects($this->never())
+			->method('createUser');
+
+		$backend->expects($this->once())
+			->method('userExists')
+			->with($this->equalTo('foo'))
+			->will($this->returnValue(true));
+
+		$manager = new \OC\User\Manager();
+		$manager->registerBackend($backend);
+
+		$manager->createUser('foo', 'bar');
+	}
+
+	public function testCreateUserSingleBackendNotSupported() {
+		/**
+		 * @var \OC_User_Dummy | \PHPUnit_Framework_MockObject_MockObject $backend
+		 */
+		$backend = $this->getMock('\OC_User_Dummy');
+		$backend->expects($this->any())
+			->method('implementsActions')
+			->will($this->returnValue(false));
+
+		$backend->expects($this->never())
+			->method('createUser');
+
+		$backend->expects($this->once())
+			->method('userExists')
+			->with($this->equalTo('foo'))
+			->will($this->returnValue(false));
+
+		$manager = new \OC\User\Manager();
+		$manager->registerBackend($backend);
+
+		$this->assertFalse($manager->createUser('foo', 'bar'));
+	}
+
+	public function testCreateUserNoBackends() {
+		$manager = new \OC\User\Manager();
+
+		$this->assertFalse($manager->createUser('foo', 'bar'));
+	}
+
+	/**
+	 * @expectedException \Exception
+	 */
+	public function testCreateUserTwoBackendExists() {
+		/**
+		 * @var \OC_User_Dummy | \PHPUnit_Framework_MockObject_MockObject $backend1
+		 */
+		$backend1 = $this->getMock('\OC_User_Dummy');
+		$backend1->expects($this->any())
+			->method('implementsActions')
+			->will($this->returnValue(true));
+
+		$backend1->expects($this->never())
+			->method('createUser');
+
+		$backend1->expects($this->once())
+			->method('userExists')
+			->with($this->equalTo('foo'))
+			->will($this->returnValue(false));
+
+		/**
+		 * @var \OC_User_Dummy | \PHPUnit_Framework_MockObject_MockObject $backend2
+		 */
+		$backend2 = $this->getMock('\OC_User_Dummy');
+		$backend2->expects($this->any())
+			->method('implementsActions')
+			->will($this->returnValue(true));
+
+		$backend2->expects($this->never())
+			->method('createUser');
+
+		$backend2->expects($this->once())
+			->method('userExists')
+			->with($this->equalTo('foo'))
+			->will($this->returnValue(true));
+
+		$manager = new \OC\User\Manager();
+		$manager->registerBackend($backend1);
+		$manager->registerBackend($backend2);
+
+		$manager->createUser('foo', 'bar');
+	}
+}

tests/lib/user/session.php

@@ -0,0 +1,155 @@
+<?php
+
+/**
+ * Copyright (c) 2013 Robin Appelman <icewind@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+namespace Test\User;
+
+class Session extends \PHPUnit_Framework_TestCase {
+	public function testGetUser() {
+		$session = $this->getMock('\OC\Session\Memory', array(), array(''));
+		$session->expects($this->once())
+			->method('get')
+			->with('user_id')
+			->will($this->returnValue('foo'));
+
+		$backend = $this->getMock('OC_User_Dummy');
+		$backend->expects($this->once())
+			->method('userExists')
+			->with('foo')
+			->will($this->returnValue(true));
+
+		$manager = new \OC\User\Manager();
+		$manager->registerBackend($backend);
+
+		$userSession = new \OC\User\Session($manager, $session);
+		$user = $userSession->getUser();
+		$this->assertEquals('foo', $user->getUID());
+	}
+
+	public function testSetUser() {
+		$session = $this->getMock('\OC\Session\Memory', array(), array(''));
+		$session->expects($this->once())
+			->method('set')
+			->with('user_id', 'foo');
+
+		$manager = $this->getMock('\OC\User\Manager');
+
+		$backend = $this->getMock('OC_User_Dummy');
+
+		$user = $this->getMock('\OC\User\User', array(), array('foo', $backend));
+		$user->expects($this->once())
+			->method('getUID')
+			->will($this->returnValue('foo'));
+
+		$userSession = new \OC\User\Session($manager, $session);
+		$userSession->setUser($user);
+	}
+
+	public function testLoginValidPasswordEnabled() {
+		$session = $this->getMock('\OC\Session\Memory', array(), array(''));
+		$session->expects($this->once())
+			->method('set')
+			->with('user_id', 'foo');
+
+		$manager = $this->getMock('\OC\User\Manager');
+
+		$backend = $this->getMock('OC_User_Dummy');
+
+		$user = $this->getMock('\OC\User\User', array(), array('foo', $backend));
+		$user->expects($this->once())
+			->method('checkPassword')
+			->with('bar')
+			->will($this->returnValue(true));
+		$user->expects($this->once())
+			->method('isEnabled')
+			->will($this->returnValue(true));
+		$user->expects($this->any())
+			->method('getUID')
+			->will($this->returnValue('foo'));
+
+		$manager->expects($this->once())
+			->method('get')
+			->with('foo')
+			->will($this->returnValue($user));
+
+		$userSession = new \OC\User\Session($manager, $session);
+		$userSession->login('foo', 'bar');
+		$this->assertEquals($user, $userSession->getUser());
+	}
+
+	public function testLoginValidPasswordDisabled() {
+		$session = $this->getMock('\OC\Session\Memory', array(), array(''));
+		$session->expects($this->never())
+			->method('set');
+
+		$manager = $this->getMock('\OC\User\Manager');
+
+		$backend = $this->getMock('OC_User_Dummy');
+
+		$user = $this->getMock('\OC\User\User', array(), array('foo', $backend));
+		$user->expects($this->once())
+			->method('checkPassword')
+			->with('bar')
+			->will($this->returnValue(true));
+		$user->expects($this->once())
+			->method('isEnabled')
+			->will($this->returnValue(false));
+
+		$manager->expects($this->once())
+			->method('get')
+			->with('foo')
+			->will($this->returnValue($user));
+
+		$userSession = new \OC\User\Session($manager, $session);
+		$userSession->login('foo', 'bar');
+	}
+
+	public function testLoginInValidPassword() {
+		$session = $this->getMock('\OC\Session\Memory', array(), array(''));
+		$session->expects($this->never())
+			->method('set');
+
+		$manager = $this->getMock('\OC\User\Manager');
+
+		$backend = $this->getMock('OC_User_Dummy');
+
+		$user = $this->getMock('\OC\User\User', array(), array('foo', $backend));
+		$user->expects($this->once())
+			->method('checkPassword')
+			->with('bar')
+			->will($this->returnValue(false));
+		$user->expects($this->never())
+			->method('isEnabled');
+
+		$manager->expects($this->once())
+			->method('get')
+			->with('foo')
+			->will($this->returnValue($user));
+
+		$userSession = new \OC\User\Session($manager, $session);
+		$userSession->login('foo', 'bar');
+	}
+
+	public function testLoginNonExisting() {
+		$session = $this->getMock('\OC\Session\Memory', array(), array(''));
+		$session->expects($this->never())
+			->method('set');
+
+		$manager = $this->getMock('\OC\User\Manager');
+
+		$backend = $this->getMock('OC_User_Dummy');
+
+		$manager->expects($this->once())
+			->method('get')
+			->with('foo')
+			->will($this->returnValue(null));
+
+		$userSession = new \OC\User\Session($manager, $session);
+		$userSession->login('foo', 'bar');
+	}
+}

tests/lib/user/user.php

@@ -0,0 +1,364 @@
+<?php
+
+/**
+ * Copyright (c) 2013 Robin Appelman <icewind@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+namespace Test\User;
+
+use OC\Hooks\PublicEmitter;
+
+class User extends \PHPUnit_Framework_TestCase {
+	public function testDisplayName() {
+		/**
+		 * @var \OC_User_Backend | \PHPUnit_Framework_MockObject_MockObject $backend
+		 */
+		$backend = $this->getMock('\OC_User_Backend');
+		$backend->expects($this->once())
+			->method('getDisplayName')
+			->with($this->equalTo('foo'))
+			->will($this->returnValue('Foo'));
+
+		$backend->expects($this->any())
+			->method('implementsActions')
+			->with($this->equalTo(\OC_USER_BACKEND_GET_DISPLAYNAME))
+			->will($this->returnValue(true));
+
+		$user = new \OC\User\User('foo', $backend);
+		$this->assertEquals('Foo', $user->getDisplayName());
+	}
+
+	public function testDisplayNameNotSupported() {
+		/**
+		 * @var \OC_User_Backend | \PHPUnit_Framework_MockObject_MockObject $backend
+		 */
+		$backend = $this->getMock('\OC_User_Backend');
+		$backend->expects($this->never())
+			->method('getDisplayName');
+
+		$backend->expects($this->any())
+			->method('implementsActions')
+			->with($this->equalTo(\OC_USER_BACKEND_GET_DISPLAYNAME))
+			->will($this->returnValue(false));
+
+		$user = new \OC\User\User('foo', $backend);
+		$this->assertEquals('foo', $user->getDisplayName());
+	}
+
+	public function testSetPassword() {
+		/**
+		 * @var \OC_User_Backend | \PHPUnit_Framework_MockObject_MockObject $backend
+		 */
+		$backend = $this->getMock('\OC_User_Dummy');
+		$backend->expects($this->once())
+			->method('setPassword')
+			->with($this->equalTo('foo'), $this->equalTo('bar'));
+
+		$backend->expects($this->any())
+			->method('implementsActions')
+			->will($this->returnCallback(function ($actions) {
+				if ($actions === \OC_USER_BACKEND_SET_PASSWORD) {
+					return true;
+				} else {
+					return false;
+				}
+			}));
+
+		$user = new \OC\User\User('foo', $backend);
+		$this->assertTrue($user->setPassword('bar',''));
+	}
+
+	public function testSetPasswordNotSupported() {
+		/**
+		 * @var \OC_User_Backend | \PHPUnit_Framework_MockObject_MockObject $backend
+		 */
+		$backend = $this->getMock('\OC_User_Dummy');
+		$backend->expects($this->never())
+			->method('setPassword');
+
+		$backend->expects($this->any())
+			->method('implementsActions')
+			->will($this->returnValue(false));
+
+		$user = new \OC\User\User('foo', $backend);
+		$this->assertFalse($user->setPassword('bar',''));
+	}
+
+	public function testDelete() {
+		/**
+		 * @var \OC_User_Backend | \PHPUnit_Framework_MockObject_MockObject $backend
+		 */
+		$backend = $this->getMock('\OC_User_Dummy');
+		$backend->expects($this->once())
+			->method('deleteUser')
+			->with($this->equalTo('foo'));
+
+		$user = new \OC\User\User('foo', $backend);
+		$this->assertTrue($user->delete());
+	}
+
+	public function testCheckPassword() {
+		/**
+		 * @var \OC_User_Backend | \PHPUnit_Framework_MockObject_MockObject $backend
+		 */
+		$backend = $this->getMock('\OC_User_Dummy');
+		$backend->expects($this->once())
+			->method('checkPassword')
+			->with($this->equalTo('foo'), $this->equalTo('bar'))
+			->will($this->returnValue(true));
+
+		$backend->expects($this->any())
+			->method('implementsActions')
+			->will($this->returnCallback(function ($actions) {
+				if ($actions === \OC_USER_BACKEND_CHECK_PASSWORD) {
+					return true;
+				} else {
+					return false;
+				}
+			}));
+
+		$user = new \OC\User\User('foo', $backend);
+		$this->assertTrue($user->checkPassword('bar'));
+	}
+
+	public function testCheckPasswordNotSupported() {
+		/**
+		 * @var \OC_User_Backend | \PHPUnit_Framework_MockObject_MockObject $backend
+		 */
+		$backend = $this->getMock('\OC_User_Dummy');
+		$backend->expects($this->never())
+			->method('checkPassword');
+
+		$backend->expects($this->any())
+			->method('implementsActions')
+			->will($this->returnValue(false));
+
+		$user = new \OC\User\User('foo', $backend);
+		$this->assertFalse($user->checkPassword('bar'));
+	}
+
+	public function testGetHome() {
+		/**
+		 * @var \OC_User_Backend | \PHPUnit_Framework_MockObject_MockObject $backend
+		 */
+		$backend = $this->getMock('\OC_User_Dummy');
+		$backend->expects($this->once())
+			->method('getHome')
+			->with($this->equalTo('foo'))
+			->will($this->returnValue('/home/foo'));
+
+		$backend->expects($this->any())
+			->method('implementsActions')
+			->will($this->returnCallback(function ($actions) {
+				if ($actions === \OC_USER_BACKEND_GET_HOME) {
+					return true;
+				} else {
+					return false;
+				}
+			}));
+
+		$user = new \OC\User\User('foo', $backend);
+		$this->assertEquals('/home/foo', $user->getHome());
+	}
+
+	public function testGetHomeNotSupported() {
+		/**
+		 * @var \OC_User_Backend | \PHPUnit_Framework_MockObject_MockObject $backend
+		 */
+		$backend = $this->getMock('\OC_User_Dummy');
+		$backend->expects($this->never())
+			->method('getHome');
+
+		$backend->expects($this->any())
+			->method('implementsActions')
+			->will($this->returnValue(false));
+
+		$user = new \OC\User\User('foo', $backend);
+		$this->assertEquals(\OC_Config::getValue("datadirectory", \OC::$SERVERROOT . "/data") . '/foo', $user->getHome());
+	}
+
+	public function testCanChangePassword() {
+		/**
+		 * @var \OC_User_Backend | \PHPUnit_Framework_MockObject_MockObject $backend
+		 */
+		$backend = $this->getMock('\OC_User_Dummy');
+
+		$backend->expects($this->any())
+			->method('implementsActions')
+			->will($this->returnCallback(function ($actions) {
+				if ($actions === \OC_USER_BACKEND_SET_PASSWORD) {
+					return true;
+				} else {
+					return false;
+				}
+			}));
+
+		$user = new \OC\User\User('foo', $backend);
+		$this->assertTrue($user->canChangePassword());
+	}
+
+	public function testCanChangePasswordNotSupported() {
+		/**
+		 * @var \OC_User_Backend | \PHPUnit_Framework_MockObject_MockObject $backend
+		 */
+		$backend = $this->getMock('\OC_User_Dummy');
+
+		$backend->expects($this->any())
+			->method('implementsActions')
+			->will($this->returnValue(false));
+
+		$user = new \OC\User\User('foo', $backend);
+		$this->assertFalse($user->canChangePassword());
+	}
+
+	public function testCanChangeDisplayName() {
+		/**
+		 * @var \OC_User_Backend | \PHPUnit_Framework_MockObject_MockObject $backend
+		 */
+		$backend = $this->getMock('\OC_User_Dummy');
+
+		$backend->expects($this->any())
+			->method('implementsActions')
+			->will($this->returnCallback(function ($actions) {
+				if ($actions === \OC_USER_BACKEND_SET_DISPLAYNAME) {
+					return true;
+				} else {
+					return false;
+				}
+			}));
+
+		$user = new \OC\User\User('foo', $backend);
+		$this->assertTrue($user->canChangeDisplayName());
+	}
+
+	public function testCanChangeDisplayNameNotSupported() {
+		/**
+		 * @var \OC_User_Backend | \PHPUnit_Framework_MockObject_MockObject $backend
+		 */
+		$backend = $this->getMock('\OC_User_Dummy');
+
+		$backend->expects($this->any())
+			->method('implementsActions')
+			->will($this->returnValue(false));
+
+		$user = new \OC\User\User('foo', $backend);
+		$this->assertFalse($user->canChangeDisplayName());
+	}
+
+	public function testSetDisplayNameSupported() {
+		/**
+		 * @var \OC_User_Backend | \PHPUnit_Framework_MockObject_MockObject $backend
+		 */
+		$backend = $this->getMock('\OC_User_Database');
+
+		$backend->expects($this->any())
+			->method('implementsActions')
+			->will($this->returnCallback(function ($actions) {
+				if ($actions === \OC_USER_BACKEND_SET_DISPLAYNAME) {
+					return true;
+				} else {
+					return false;
+				}
+			}));
+
+		$backend->expects($this->once())
+			->method('setDisplayName')
+			->with('foo','Foo');
+
+		$user = new \OC\User\User('foo', $backend);
+		$this->assertTrue($user->setDisplayName('Foo'));
+		$this->assertEquals('Foo',$user->getDisplayName());
+	}
+
+	public function testSetDisplayNameNotSupported() {
+		/**
+		 * @var \OC_User_Backend | \PHPUnit_Framework_MockObject_MockObject $backend
+		 */
+		$backend = $this->getMock('\OC_User_Database');
+
+		$backend->expects($this->any())
+			->method('implementsActions')
+			->will($this->returnCallback(function ($actions) {
+					return false;
+			}));
+
+		$backend->expects($this->never())
+			->method('setDisplayName');
+
+		$user = new \OC\User\User('foo', $backend);
+		$this->assertFalse($user->setDisplayName('Foo'));
+		$this->assertEquals('foo',$user->getDisplayName());
+	}
+
+	public function testSetPasswordHooks() {
+		$hooksCalled = 0;
+		$test = $this;
+
+		/**
+		 * @var \OC_User_Backend | \PHPUnit_Framework_MockObject_MockObject $backend
+		 */
+		$backend = $this->getMock('\OC_User_Dummy');
+		$backend->expects($this->once())
+			->method('setPassword');
+
+		/**
+		 * @param \OC\User\User $user
+		 * @param string $password
+		 */
+		$hook = function ($user, $password) use ($test, &$hooksCalled) {
+			$hooksCalled++;
+			$test->assertEquals('foo', $user->getUID());
+			$test->assertEquals('bar', $password);
+		};
+
+		$emitter = new PublicEmitter();
+		$emitter->listen('\OC\User', 'preSetPassword', $hook);
+		$emitter->listen('\OC\User', 'postSetPassword', $hook);
+
+		$backend->expects($this->any())
+			->method('implementsActions')
+			->will($this->returnCallback(function ($actions) {
+				if ($actions === \OC_USER_BACKEND_SET_PASSWORD) {
+					return true;
+				} else {
+					return false;
+				}
+			}));
+
+		$user = new \OC\User\User('foo', $backend, $emitter);
+
+		$user->setPassword('bar','');
+		$this->assertEquals(2, $hooksCalled);
+	}
+
+	public function testDeleteHooks() {
+		$hooksCalled = 0;
+		$test = $this;
+
+		/**
+		 * @var \OC_User_Backend | \PHPUnit_Framework_MockObject_MockObject $backend
+		 */
+		$backend = $this->getMock('\OC_User_Dummy');
+		$backend->expects($this->once())
+			->method('deleteUser');
+
+		/**
+		 * @param \OC\User\User $user
+		 */
+		$hook = function ($user) use ($test, &$hooksCalled) {
+			$hooksCalled++;
+			$test->assertEquals('foo', $user->getUID());
+		};
+
+		$emitter = new PublicEmitter();
+		$emitter->listen('\OC\User', 'preDelete', $hook);
+		$emitter->listen('\OC\User', 'postDelete', $hook);
+
+		$user = new \OC\User\User('foo', $backend, $emitter);
+		$this->assertTrue($user->delete());
+		$this->assertEquals(2, $hooksCalled);
+	}
+}