public function testSetShortNameToNullSetsLongNameToBePreferred()
{
$this->config->setShortName('d');
$this->config->setPreferShortName();
$this->config->setShortName(null);
$this->assertTrue($this->config->isLongNamePreferred());
$this->assertFalse($this->config->isShortNamePreferred());
}