public void process_order_should_succeed()
{
//Arrange
User.IncreaseFunds(100);
User.Activate();
//Act
OrderProcessor.ProcessOrder(User.Email, Order.Id);
//Assert
DatabaseMock.Verify(x => x.GetUser(User.Email), Times.Once());
DatabaseMock.Verify(x => x.GetOrder(Order.Id), Times.Once());
Order.IsPurchased.Should().BeTrue();
}