function testPayments()
{
$x = new Consultation(1);
$y = $x->payments();
$this->assertType('array', $y);
$this->assertEquals(1, count($y));
$z = array_shift($y);
$this->assertType('Payment', $z);
$this->assertEquals(5, $z->id);
$x = new Consultation(2);
$y = $x->payments();
$this->assertEquals(0, count($y));
}
