function testFindBookCopy()
{
$title = "Three Blind Mice";
$test_book = new Book($title);
$test_book->save();
$test_copy = new Copy($amount = 1, $test_book->getId());
$test_copy->save();
$title2 = "Chicken Dog";
$test_book2 = new Book($title2);
$test_book2->save();
$test_copy2 = new Copy($amount2 = 2, $test_book2->getId());
$test_copy2->save();
$result = Copy::findBookCopy($test_book->getId());
$this->assertEquals($test_copy, $result);
}
