$this->assertRegExp('/Tue, 10 Mar 2015 11:46:51 \+\d{4}/', $link['pub_iso_date']);
$pub = DateTime::createFromFormat(DateTime::RSS, $link['pub_iso_date']);
$up = DateTime::createFromFormat(DateTime::ATOM, $link['up_iso_date']);
$this->assertEquals($pub, $up);
$this->assertContains('Stallman has a beard', $link['description']);
$this->assertContains('Permalink', $link['description']);
$this->assertRegExp('/Tue, 10 Mar 2015 11:46:51 \+\d{4}/', $link['pub_iso_date']);
$pub = DateTime::createFromFormat(DateTime::RSS, $link['pub_iso_date']);
$up = DateTime::createFromFormat(DateTime::ATOM, $link['up_iso_date']);
$this->assertEquals($pub, $up);
$this->assertContains('Stallman has a beard', $link['description']);
$this->assertContains('Permalink', $link['description']);