function test_user_keys()
{
global $DB;
$user_id = iclicker_service::require_user();
$this->assertNotNull($user_id);
// saving key for user should work
$user_key = iclicker_service::makeUserKey($user_id, true);
$this->assertNotNull($user_key);
$keysCount = $DB->count_records(iclicker_service::USER_KEY_TABLENAME, array('user_id' => $user_id));
$this->assertEqual(1, $keysCount);
// getting key for user (from make)
$user_key1 = iclicker_service::makeUserKey($user_id, false);
$this->assertNotNull($user_key1);
$this->assertEqual($user_key, $user_key1);
// getting key for user (from get)
$user_key1 = iclicker_service::getUserKey($user_id);
$this->assertNotNull($user_key1);
$this->assertEqual($user_key, $user_key1);
// update the key should work
$user_key2 = iclicker_service::makeUserKey($user_id, true);
$this->assertNotNull($user_key2);
$this->assertNotEqual($user_key, $user_key2);
// trying to save another key for this user should fail
$dupeUserKey = new stdClass();
$dupeUserKey->user_id = $user_id;
$dupeUserKey->user_key = 'x12xx3x3x43x44';
try {
$DB->insert_record(iclicker_service::USER_KEY_TABLENAME, $dupeUserKey);
$this->fail("Should have thrown an exception");
} catch (dml_exception $e) {
$this->assertNotNull($e->getMessage());
}
// delete the key should work
$DB->delete_records(iclicker_service::USER_KEY_TABLENAME, array('user_id' => $user_id));
$user_key3 = iclicker_service::getUserKey($user_id);
$this->assertNull($user_key3);
// adding key2 should work since key1 is gone
$user_key4 = iclicker_service::makeUserKey($user_id, true);
$this->assertNotNull($user_key4);
// cleanup
$DB->delete_records(iclicker_service::USER_KEY_TABLENAME, array('user_id' => $user_id));
}
