function test_getAllClients() { //Arrange $stylist_name = "Donna"; $id = null; $test_stylist = new Stylist($stylist_name, $id); $test_stylist->save(); $client_name = "Robin"; $stylist_id = $test_stylist->getId(); $test_client = new Client($client_name, $stylist_id); $test_client->save(); $client_name2 = "Darla"; $test_client2 = new Client($client_name2, $stylist_id); $test_client2->save(); //Act $result = $test_stylist->getAllClients(); //Assert $this->assertEquals([$test_client, $test_client2], $result); }