diff --git a/lib/User.php b/lib/User.php
index 2b3daa4b..b5fa3dcf 100644
--- a/lib/User.php
+++ b/lib/User.php
@@ -170,7 +170,7 @@ class User {
                 // we handle authorization checks for external drivers
                 if(!$this->authorize($user, $func)) throw new User\ExceptionAuthz("notAuthorized", ["action" => $func, "user" => $user]);
                 $out = $this->u->userExists($user);
-                if($out && !$this->data->db->userExist($user)) $this->autoProvision($user, "");
+                if($out && !$this->data->db->userExists($user)) $this->autoProvision($user, "");
                 return $out;
             case User\Driver::FUNC_INTERNAL:
                 // internal functions handle their own authorization
@@ -285,7 +285,7 @@ class User {
                 $out = $this->u->userPropertiesSet($user, $properties);
                 if($this->data->db->userExists($user)) {
                     // if the property change was successful and the user exists, set the internal properties to the same values
-                    $this->data->db->userPpropertiesSet($user, $out);
+                    $this->data->db->userPropertiesSet($user, $out);
                 } else {
                     // if the user does not exists in the internal database, create it
                     $this->autoProvision($user, "", $out);
diff --git a/tests/User/TestUserExternal.php b/tests/User/TestUserExternal.php
new file mode 100644
index 00000000..de9f2186
--- /dev/null
+++ b/tests/User/TestUserExternal.php
@@ -0,0 +1,131 @@
+<?php
+declare(strict_types=1);
+namespace JKingWeb\NewsSync;
+
+
+class TestUserExternal extends \PHPUnit\Framework\TestCase {
+    use Test\Tools;
+    
+	const USER1 = "john.doe@example.com";
+	const USER2 = "jane.doe@example.com";
+
+	protected $data;
+
+    function setUp() {
+		$drv = Test\User\DriverExternalMock::class;
+		$conf = new Conf();
+		$conf->userDriver = $drv;
+		$conf->userAuthPreferHTTP = true;
+		$this->data = new Test\RuntimeData($conf);
+		$this->data->db = new Test\User\Database($this->data);
+		$this->data->user = new User($this->data);
+		$this->data->user->authorizationEnabled(false);
+		$_SERVER['PHP_AUTH_USER'] = self::USER1;
+		$_SERVER['PHP_AUTH_PW'] = "secret";
+	}
+
+	function testListUsers() {
+		$this->assertCount(0,$this->data->user->list());
+	}
+	
+	function testCheckIfAUserDoesNotExist() {
+		$this->assertFalse($this->data->user->exists(self::USER1));
+	}
+
+	function testAddAUser() {
+		$this->data->user->add(self::USER1, "secret");
+		$this->assertCount(1,$this->data->user->list());
+	}
+
+	function testCheckIfAUserDoesExist() {
+		$this->data->user->add(self::USER1, "secret");
+		$this->assertTrue($this->data->user->exists(self::USER1));
+	}
+
+	function testAddADuplicateUser() {
+		$this->data->user->add(self::USER1, "secret");
+		$this->assertException("alreadyExists", "User");
+		$this->data->user->add(self::USER1, "secret");
+	}
+
+	function testAddMultipleUsers() {
+		$this->data->user->add(self::USER1, "secret");
+		$this->data->user->add(self::USER2, "secret");
+		$this->assertCount(2,$this->data->user->list());
+	}
+	
+	function testRemoveAUser() {
+		$this->data->user->add(self::USER1, "secret");
+		$this->assertCount(1,$this->data->user->list());
+		$this->data->user->remove(self::USER1);
+		$this->assertCount(0,$this->data->user->list());
+	}
+
+	function testRemoveAMissingUser() {
+		$this->assertException("doesNotExist", "User");
+		$this->data->user->remove(self::USER1);
+	}
+
+	function testAuthenticateAUser() {
+		$this->data->user->add(self::USER1, "secret");
+		$this->assertTrue($this->data->user->auth(self::USER1, "secret"));
+		$this->assertFalse($this->data->user->auth(self::USER1, "superman"));
+	}
+
+	function testChangeAPassword() {
+		$this->data->user->add(self::USER1, "secret");
+		$this->assertEquals("superman", $this->data->user->passwordSet(self::USER1, "superman"));
+		$this->assertTrue($this->data->user->auth(self::USER1, "superman"));
+		$this->assertFalse($this->data->user->auth(self::USER1, "secret"));
+		$this->assertEquals($this->data->conf->userTempPasswordLength, strlen($this->data->user->passwordSet(self::USER1)));
+	}
+
+	function testChangeAPasswordForAMissingUser() {
+		$this->assertException("doesNotExist", "User");
+		$this->data->user->passwordSet(self::USER1, "superman");
+	}
+
+	function testGetThePropertiesOfAUser() {
+		$this->data->user->add(self::USER1, "secret");
+		$p = $this->data->user->propertiesGet(self::USER1);
+		$this->assertArrayHasKey('id', $p);
+		$this->assertArrayHasKey('name', $p);
+		$this->assertArrayHasKey('domain', $p);
+		$this->assertArrayHasKey('rights', $p);
+		$this->assertArrayNotHasKey('password', $p);
+		$this->assertEquals(self::USER1, $p['name']);
+	}
+
+	function testSetThePropertiesOfAUser() {
+		$pSet = [
+			'name' => 'John Doe',
+			'id'   => 'invalid',
+			'domain' => 'localhost',
+			'rights' => User\Driver::RIGHTS_GLOBAL_ADMIN,
+			'password' => 'superman',
+		];
+		$pGet = [
+			'name' => 'John Doe',
+			'id'   => self::USER1,
+			'domain' => 'example.com',
+			'rights' => User\Driver::RIGHTS_NONE,
+		];
+		$this->data->user->add(self::USER1, "secret");
+		$this->data->user->propertiesSet(self::USER1, $pSet);
+		$p = $this->data->user->propertiesGet(self::USER1);
+		$this->assertArraySubset($pGet, $p);
+		$this->assertArrayNotHasKey('password', $p);
+		$this->assertFalse($this->data->user->auth(self::USER1, "superman"));
+	}
+
+	function testGetTheRightsOfAUser() {
+		$this->data->user->add(self::USER1, "secret");
+		$this->assertEquals(User\Driver::RIGHTS_NONE, $this->data->user->rightsGet(self::USER1));
+	}
+
+	function testSetTheRightsOfAUser() {
+		$this->data->user->add(self::USER1, "secret");
+		$this->data->user->rightsSet(self::USER1, User\Driver::RIGHTS_GLOBAL_ADMIN);
+		$this->assertEquals(User\Driver::RIGHTS_GLOBAL_ADMIN, $this->data->user->rightsGet(self::USER1));
+	}
+}
\ No newline at end of file
diff --git a/tests/lib/User/Database.php b/tests/lib/User/Database.php
index 36c786ec..c86341a4 100644
--- a/tests/lib/User/Database.php
+++ b/tests/lib/User/Database.php
@@ -7,6 +7,10 @@ use JKingWeb\NewsSync\User\ExceptionAuthz;
 use PasswordGenerator\Generator as PassGen;
 
 class Database extends DriverSkeleton {
+
+    public function __construct(\JKingWeb\NewsSync\RuntimeData $data) {
+        $this->data = $data;
+    }
 	
     function userExists(string $user): bool {
         if(!$this->data->user->authorize($user, __FUNCTION__)) throw new ExceptionAuthz("notAuthorized", ["action" => __FUNCTION__, "user" => $user]);
diff --git a/tests/lib/User/DriverExternalMock.php b/tests/lib/User/DriverExternalMock.php
new file mode 100644
index 00000000..c5428ce1
--- /dev/null
+++ b/tests/lib/User/DriverExternalMock.php
@@ -0,0 +1,101 @@
+<?php
+declare(strict_types=1);
+namespace JKingWeb\NewsSync\Test\User;
+use JKingWeb\NewsSync\User\Driver;
+use JKingWeb\NewsSync\User\Exception;
+use PasswordGenerator\Generator as PassGen;
+
+class DriverExternalMock extends DriverSkeleton implements Driver {
+
+    protected $db = [];
+    protected $data;
+    protected $functions = [
+        "auth"                    => Driver::FUNC_EXTERNAL,
+        "userList"                => Driver::FUNC_EXTERNAL,
+        "userExists"              => Driver::FUNC_EXTERNAL,
+        "userAdd"                 => Driver::FUNC_EXTERNAL,
+        "userRemove"              => Driver::FUNC_EXTERNAL,
+        "userPasswordSet"         => Driver::FUNC_EXTERNAL,
+        "userPropertiesGet"       => Driver::FUNC_EXTERNAL,
+        "userPropertiesSet"       => Driver::FUNC_EXTERNAL,
+        "userRightsGet"           => Driver::FUNC_EXTERNAL,
+        "userRightsSet"           => Driver::FUNC_EXTERNAL,
+    ];
+
+    static public function create(\JKingWeb\NewsSync\RuntimeData $data): Driver {
+        return new static($data);
+    }
+
+    static public function driverName(): string {
+        return "Mock External Driver";
+    }
+
+    public function driverFunctions(string $function = null) {
+        if($function===null) return $this->functions;
+        if(array_key_exists($function, $this->functions)) {
+            return $this->functions[$function];
+        } else {
+            return Driver::FUNC_NOT_IMPLEMENTED;
+        }
+    }
+
+    public function __construct(\JKingWeb\NewsSync\RuntimeData $data) {
+        $this->data = $data;
+    }
+
+    function auth(string $user, string $password): bool {
+        if(!$this->userExists($user)) return false;
+        if(password_verify($password, $this->db[$user]['password'])) return true;
+        return false;
+    }
+	
+    function userExists(string $user): bool {
+        return parent::userExists($user);
+    }
+
+    function userAdd(string $user, string $password = null): string {
+        if($this->userExists($user)) throw new Exception("alreadyExists", ["action" => __FUNCTION__, "user" => $user]);
+        if($password===null) $password = (new PassGen)->length($this->data->conf->userTempPasswordLength)->get();
+        return parent::userAdd($user, $password);
+    }
+
+    function userRemove(string $user): bool {
+        if(!$this->userExists($user)) throw new Exception("doesNotExist", ["action" => __FUNCTION__, "user" => $user]);
+        return parent::userRemove($user);
+    }
+
+    function userList(string $domain = null): array {
+        if($domain===null) {
+            return parent::userList();
+        } else {
+            return parent::userList($domain);
+        }
+    }
+    
+    function userPasswordSet(string $user, string $newPassword = null, string $oldPassword = null): string {
+        if(!$this->userExists($user)) throw new Exception("doesNotExist", ["action" => __FUNCTION__, "user" => $user]);
+        if($newPassword===null) $newPassword = (new PassGen)->length($this->data->conf->userTempPasswordLength)->get();
+        return parent::userPasswordSet($user, $newPassword);
+    }
+
+    function userPropertiesGet(string $user): array {
+        if(!$this->userExists($user)) throw new Exception("doesNotExist", ["action" => __FUNCTION__, "user" => $user]);
+        return parent::userPropertiesGet($user);
+    }
+
+    function userPropertiesSet(string $user, array $properties): array {
+        if(!$this->userExists($user)) throw new Exception("doesNotExist", ["action" => __FUNCTION__, "user" => $user]);
+        parent::userPropertiesSet($user, $properties);
+        return $this->userPropertiesGet($user);
+    }
+
+    function userRightsGet(string $user): int {
+        if(!$this->userExists($user)) throw new Exception("doesNotExist", ["action" => __FUNCTION__, "user" => $user]);
+        return parent::userRightsGet($user);
+    }
+    
+    function userRightsSet(string $user, int $level): bool {
+        if(!$this->userExists($user)) throw new Exception("doesNotExist", ["action" => __FUNCTION__, "user" => $user]);
+        return parent::userRightsSet($user, $level);
+    }
+}
\ No newline at end of file
diff --git a/tests/phpunit.xml b/tests/phpunit.xml
index 5b31655a..72d2bda7 100644
--- a/tests/phpunit.xml
+++ b/tests/phpunit.xml
@@ -23,6 +23,7 @@
 
 <testsuite name="User management">
     <file>User/TestUser.php</file>
+    <file>User/TestUserExternal.php</file>
 </testsuite>
 
 </phpunit>
\ No newline at end of file