public function testGetSetCertificateProviders()
{
unset($this->poa->{'certificateProviders'});
$certificateProviders = $this->poa->getCertificateProviders();
for ($i = 0; $i < 5; $i++) {
$certificateProviders->add(new CertificateProvider());
}
$this->poa->setCertificateProviders($certificateProviders);
$this->assertEquals($certificateProviders, $this->poa->getCertificateProviders());
unset($this->poa->{'certificateProviders'});
$cp = new CertificateProvider();
$this->poa->addCertificateProvider($cp);
$this->assertEquals($cp, $this->poa->getCertificateProviders()[0]);
}
