public function testIsEmpty()
{
$this->assertTrue($this->collection->isEmpty());
$this->collection->add($this->server1);
$this->assertFalse($this->collection->isEmpty());
$this->collection->clear();
$this->assertTrue($this->collection->isEmpty());
}
/**
* {@inheritdoc}
*/
public function hasServers(Expression $expr = null)
{
$this->assertServersLoaded();
if (!$expr) {
return !$this->servers->isEmpty();
}
foreach ($this->servers as $server) {
if ($server->match($expr)) {
return true;
}
}
return false;
}
