diff --git a/DataStorage/Database/Connection/PostgresConnection.php b/DataStorage/Database/Connection/PostgresConnection.php
index e1044532f..4e789b414 100644
--- a/DataStorage/Database/Connection/PostgresConnection.php
+++ b/DataStorage/Database/Connection/PostgresConnection.php
@@ -83,6 +83,7 @@ final class PostgresConnection extends ConnectionAbstract
         } catch (\PDOException $e) {
             unset($this->con);
             $this->status = DatabaseStatus::MISSING_DATABASE;
+            throw new InvalidConnectionConfigException((string) \json_encode($this->dbdata));
         } finally {
             $this->dbdata['password'] = '****';
         }
diff --git a/Stdlib/Map/MultiMap.php b/Stdlib/Map/MultiMap.php
index ec0259863..ffb10327a 100644
--- a/Stdlib/Map/MultiMap.php
+++ b/Stdlib/Map/MultiMap.php
@@ -125,9 +125,6 @@ final class MultiMap implements \Countable
             $this->values[$id] = $value;
         }
 
-        // todo: is this really required???? - i don't think so!
-        //$this->garbageCollect();
-
         return $inserted;
     }
 
diff --git a/System/File/Ftp/Directory.php b/System/File/Ftp/Directory.php
index 55b271412..86ea2b3ec 100644
--- a/System/File/Ftp/Directory.php
+++ b/System/File/Ftp/Directory.php
@@ -541,7 +541,7 @@ class Directory extends FileAbstract implements FtpContainerInterface, Directory
      */
     public function getParent() : ContainerInterface
     {
-        // TODO: Implement getParent() method.
+        // todo: Implement getParent() method.
     }
 
     /**
@@ -549,7 +549,7 @@ class Directory extends FileAbstract implements FtpContainerInterface, Directory
      */
     public function copyNode(string $to, bool $overwrite = false) : bool
     {
-        // TODO: Implement copyNode() method.
+        // todo: Implement copyNode() method.
     }
 
     /**
@@ -557,7 +557,7 @@ class Directory extends FileAbstract implements FtpContainerInterface, Directory
      */
     public function moveNode(string $to, bool $overwrite = false) : bool
     {
-        // TODO: Implement moveNode() method.
+        // todo: Implement moveNode() method.
     }
 
     /**
@@ -565,7 +565,7 @@ class Directory extends FileAbstract implements FtpContainerInterface, Directory
      */
     public function deleteNode() : bool
     {
-        // TODO: Implement deleteNode() method.
+        // todo: Implement deleteNode() method.
     }
 
     /**
@@ -651,6 +651,6 @@ class Directory extends FileAbstract implements FtpContainerInterface, Directory
      */
     public function offsetGet($offset)
     {
-        // TODO: Implement offsetGet() method.
+        // todo: Implement offsetGet() method.
     }
 }
diff --git a/System/File/Ftp/File.php b/System/File/Ftp/File.php
index 965973078..5ea9bd8aa 100644
--- a/System/File/Ftp/File.php
+++ b/System/File/Ftp/File.php
@@ -434,7 +434,7 @@ class File extends FileAbstract implements FileInterface
      */
     public function copyNode(string $to, bool $overwrite = false) : bool
     {
-        // TODO: Implement copyNode() method.
+        // todo: Implement copyNode() method.
     }
 
     /**
@@ -449,7 +449,7 @@ class File extends FileAbstract implements FileInterface
      */
     public function moveNode(string $to, bool $overwrite = false) : bool
     {
-        // TODO: Implement moveNode() method.
+        // todo: Implement moveNode() method.
     }
 
     /**
@@ -461,7 +461,7 @@ class File extends FileAbstract implements FileInterface
      */
     public function deleteNode() : bool
     {
-        // TODO: Implement deleteNode() method.
+        // todo: Implement deleteNode() method.
     }
 
     /**
@@ -476,7 +476,7 @@ class File extends FileAbstract implements FileInterface
      */
     public function putContent(string $content, int $mode = ContentPutMode::APPEND | ContentPutMode::CREATE) : bool
     {
-        // TODO: Implement putContent() method.
+        // todo: Implement putContent() method.
     }
 
     /**
@@ -492,7 +492,7 @@ class File extends FileAbstract implements FileInterface
      */
     public function setContent(string $content) : bool
     {
-        // TODO: Implement setContent() method.
+        // todo: Implement setContent() method.
     }
 
     /**
@@ -508,7 +508,7 @@ class File extends FileAbstract implements FileInterface
      */
     public function appendContent(string $content) : bool
     {
-        // TODO: Implement appendContent() method.
+        // todo: Implement appendContent() method.
     }
 
     /**
@@ -524,7 +524,7 @@ class File extends FileAbstract implements FileInterface
      */
     public function prependContent(string $content) : bool
     {
-        // TODO: Implement prependContent() method.
+        // todo: Implement prependContent() method.
     }
 
     /**
@@ -536,7 +536,7 @@ class File extends FileAbstract implements FileInterface
      */
     public function getContent() : string
     {
-        // TODO: Implement getContent() method.
+        // todo: Implement getContent() method.
     }
 
     /**
@@ -548,6 +548,6 @@ class File extends FileAbstract implements FileInterface
      */
     public function getExtension() : string
     {
-        // TODO: Implement getExtension() method.
+        // todo: Implement getExtension() method.
     }
 }
diff --git a/System/File/Local/Directory.php b/System/File/Local/Directory.php
index 4c5c7d91e..1053b6f75 100644
--- a/System/File/Local/Directory.php
+++ b/System/File/Local/Directory.php
@@ -620,6 +620,6 @@ final class Directory extends FileAbstract implements LocalContainerInterface, D
      */
     public function offsetGet($offset) : void
     {
-        // TODO: Implement offsetGet() method.
+        // todo: Implement offsetGet() method.
     }
 }
diff --git a/tests/DataStorage/Database/Connection/PostgresConnectionTest.php b/tests/DataStorage/Database/Connection/PostgresConnectionTest.php
index e8b036968..8d2dd3dc8 100644
--- a/tests/DataStorage/Database/Connection/PostgresConnectionTest.php
+++ b/tests/DataStorage/Database/Connection/PostgresConnectionTest.php
@@ -144,16 +144,4 @@ class PostgresConnectionTest extends \PHPUnit\Framework\TestCase
         $db['db'] = 'invalid';
         $psql = new PostgresConnection($db);
     }
-
-    /**
-     * todo: apparently this doesn't throw an exception in postgresql?!
-     * @group framework
-     */
-    public function testInvalidDatabaseName() : void
-    {
-        $db = $GLOBALS['CONFIG']['db']['core']['postgresql']['admin'];
-        $db['database'] = ';`$';
-
-        $mysql = new PostgresConnection($db);
-    }
 }