diff --git a/tests/Mantis/ConfigParserTest.php b/tests/Mantis/ConfigParserTest.php
index e39b5c5834..a6ea860601 100644
--- a/tests/Mantis/ConfigParserTest.php
+++ b/tests/Mantis/ConfigParserTest.php
@@ -227,6 +227,7 @@ private function addScalarCase( $p_string, $p_type ) {
 	 */
 	private function initScalarTestCases() {
 		# Integer
+		$this->addScalarCase( '0', PHPUnit_Type::TYPE_INT );
 		$this->addScalarCase( '1', PHPUnit_Type::TYPE_INT );
 		$this->addScalarCase( " 1\n", PHPUnit_Type::TYPE_INT );
 
@@ -234,6 +235,9 @@ private function initScalarTestCases() {
 		$this->addScalarCase( '1.1', PHPUnit_Type::TYPE_FLOAT );
 
 		# String
+		$this->addScalarCase( '""', PHPUnit_Type::TYPE_STRING );
+		$this->addScalarCase( "''", PHPUnit_Type::TYPE_STRING );
+		$this->addScalarCase( '" "', PHPUnit_Type::TYPE_STRING );
 		$this->addScalarCase( '"1"', PHPUnit_Type::TYPE_STRING );
 		$this->addScalarCase( "'1'", PHPUnit_Type::TYPE_STRING );