api v4

1) test up methodology
We are leaning towards starting with one or 2 api & getting them & their tests going & then refining & doing a few more
How do we clean up the test classes? Scenario library? Require php 5.4 & use traits - it could be an option to make v4 require 5.4 even
if core does not initially)

2) use class api rather than procedural array based as a starting point?
 $api = new CiviCRM_API4($authParams);
 $contact = $api->Contact('create, $params);
 $emails = $api->Email('get', $params);
 
  - defaults? $api->setDefaults('check_permissions' => 0, 'limit' => 50) or $api->setDefaults('get', array('check_permissions' => 0, 'limit' => 50))
 (or does that set up up for error)
 
 3) return a class?
 $contact->values;
 $contact->display_name ?

4) make check_permissions required for php?

5) inputs 
civicrm_api4('Contact', 'get', array(
  'filters' => array('contact_type' => 'Individual'),
  'return' => array('id', 'sort_name'),
  'sort' => array('sort_name DESC'),
  'check_permissions' => 1,
);

6) ditch wrapper in output

One more thought - writing the tests will actually be really revealing on what is convenient or not - we don't need to think about cased beyond the tests for now.