public function testBuildingEntity()
{
$entity = new Order();
$this->assertInstanceOf('Expressly\\Entity\\Order', $entity->setId('ORDER-531'));
$this->assertInstanceOf('Expressly\\Entity\\Order', $entity->setDate(new \DateTime('2015-08-08 13:00:00 +00:00')));
$this->assertInstanceOf('Expressly\\Entity\\Order', $entity->setItemCount(1));
$this->assertInstanceOf('Expressly\\Entity\\Order', $entity->setCoupon('25OFF'));
$this->assertInstanceOf('Expressly\\Entity\\Order', $entity->setCurrency('GBP'));
$this->assertInstanceOf('Expressly\\Entity\\Order', $entity->setTotal(35.0, 2.0));
$this->assertJson(json_encode($entity->toArray()));
$this->assertJsonStringEqualsJsonString(json_encode($entity->toArray()), json_encode(array('id' => 'ORDER-531', 'date' => '2015-08-08T13:00:00+0000', 'itemCount' => 1, 'coupon' => '25OFF', 'currency' => 'GBP', 'preTaxTotal' => 35.0, 'postTaxTotal' => 37.0, 'tax' => 2.0)));
}
