Test the getClassName() function.
function testGetClassName() {
// Check the dummy scheme.
$this
->assertEqual($this->classname, file_stream_wrapper_get_class($this->scheme), 'Got correct class name for dummy scheme.');
// Check core's scheme.
$this
->assertEqual('Drupal\\Core\\StreamWrapper\\PublicStream', file_stream_wrapper_get_class('public'), 'Got correct class name for public scheme.');
}