public function getFetchesStringValueFromBackend()
{
$backend = $this->prepareDefaultBackend();
$backend->expects($this->once())->method('get')->will($this->returnValue('Just some value'));
$cache = new StringFrontend('StringFrontend', $backend);
$this->assertEquals('Just some value', $cache->get('StringCacheTest'), 'The returned value was not the expected string.');
}