public function testNewFromHeaders()
{
$headers = array(ACL::HEADER_READ => '.r:.example.com,.rlistings,.r:-*.evil.net', ACL::HEADER_WRITE => 'testact2, testact3:earnie, .rlistings ');
$acl = ACL::newFromHeaders($headers);
$rules = $acl->rules();
$this->assertEquals(6, count($rules));
// Yay, now we get to test each one.
$this->assertEquals(ACL::READ, $rules[0]['mask']);
$this->assertEquals('.example.com', $rules[0]['host']);
$this->assertTrue($rules[1]['rlistings']);
$this->assertEquals('-*.evil.net', $rules[2]['host']);
$this->assertEquals(ACL::WRITE, $rules[3]['mask']);
$this->assertEquals('testact2', $rules[3]['account']);
$this->assertEquals('testact3', $rules[4]['account']);
$this->assertEquals('earnie', $rules[4]['user']);
$this->assertTrue($rules[5]['rlistings']);
// Final canary:
$headers = $acl->headers();
$read = $headers[ACL::HEADER_READ];
$write = $headers[ACL::HEADER_WRITE];
$this->assertEquals('.r:.example.com,.rlistings,.r:-*.evil.net', $read);
// Note that the spurious .rlistings was removed.
$this->assertEquals('testact2,testact3:earnie', $write);
}