function testQA()
{
$get = $_GET;
unset($_GET['psu-qa']);
$this->assertFalse(PSU::qa(null, true), 'false when psu-qa missing');
$_GET['psu-qa'] = 'foobar';
$this->assertEquals(PSU::qa(null, true), 'foobar', 'string result when area is not passed');
$this->assertTrue(PSU::qa('foobar', true), 'string result when qa matches');
$this->assertFalse(PSU::qa('baz', true), 'false when psu-qa does not match');
$_GET = $get;
}