public function convertShouldAskConfigurationBuilderForDefaultConfiguration()
{
$propertyMapper = $this->getAccessibleMock(PropertyMapper::class, ['dummy']);
$converter = $this->getMockTypeConverter('string2string');
$typeConverters = ['string' => ['string' => [10 => $converter]]];
$propertyMapper->_set('typeConverters', $typeConverters);
$this->assertEquals('string2string', $propertyMapper->convert('source', 'string'));
}