function testGetPatrons()
{
//Arrange
$due_date = "2015-10-10";
$book_id = 1;
$id = 1;
$test_copy = new Copy($due_date, $book_id, $id);
$test_copy->save();
$name = "Jim Bob";
$id = 1;
$test_patron = new Patron($name, $id);
$test_patron->save();
$name2 = "Sally Sue";
$id2 = 2;
$test_patron2 = new Patron($name, $id);
$test_patron2->save();
//Act
$test_copy->addPatron($test_patron);
$test_copy->addPatron($test_patron2);
$result = $test_copy->getPatrons();
//Assert
$this->assertEquals([$test_patron, $test_patron2], $result);
}
