public function testIsList()
 {
     $list = array(5, 'nstaoush', array());
     $this->assertTrue(Conekta_Util::isList($list));
     $notlist = array(5, 'nstaoush', array(), 'bar' => 'baz');
     $this->assertFalse(Conekta_Util::isList($notlist));
 }
 public function testRetrieve()
 {
     authorizeFromEnv();
     $d = Conekta_Balance::retrieve();
     $this->assertEqual($d->object, "balance");
     $this->assertTrue(Conekta_Util::isList($d->available));
     $this->assertTrue(Conekta_Util::isList($d->pending));
 }