function testDocuments()
{
$x = new Teacher(2);
$y = $x->documents();
$d = array_shift($y);
$this->assertType('Document', $d);
$this->assertEquals('Willy_Wonka-Rhyming_Dictionary.doc', $d->url());
}
function testDocumentAdd()
{
$d = new Document(false);
$set = array('teacher_id' => 1, 'mediatype' => 'wma', 'url' => 'newsong.wma', 'description' => 'new song', 'pricecode' => 'b');
$new_id = $d->add($set);
$d = new Document($new_id);
$d->add_teacher($set['teacher_id']);
$this->assertEquals($set['description'], $d->description());
$t = new Teacher($set['teacher_id']);
$ds = $t->documents();
$this->assertType('array', $ds);
$this->assertArrayHasKey($new_id, $ds);
$d = $ds[$new_id];
$this->assertEquals($set['description'], $d->description());
}
