LSCC 24092014 Outside In TDD

lscc-outside-in.js

// for London Software Craftsmanship Community event http://www.meetup.com/london-software-craftsmanship/events/208963722/
// from http://codingboard.org/boards/lscc
// nothing more than concepts here

function Order() {
  return {
    customer: {},
    basket: {},
    paymentInfo: {}
  };
};


// ****************
// MOCKS
// ****************

var customerMock = {
  email: 'test@example.com'
};

var basketMock = {
  items: ['apple', 'orange', 'grape']
};

var paymentInfoMock = {
  card: 'visa',
  number: '12345'
};

var orderMock = new Order({
  customer: customerMock,
  basket: basketMock,
  paymentInfo: paymentInfoMock
});

var orderSubmittedChecklist = {
  checkedStock: false,
  sentPaymentDetails: false,
  sentOrderConfirmation: false
};

var submitOrder = function  (order) {
  return {
    checkStock: stockManagementServiceMock.checkStock(order.basket),
    processPayment: paymentProcessingMock.processPayment(order.paymentInfo),
    emailSender: emailSenderMock.sendEmailConfirmation(order.customer)
  };
};


function stockManagementServiceMock(basketItems) {
  return {
    checkStock: function (basketItems) {
      if (basketItems) {
        orderSubmittedChecklist.checkedStock = true;
      }
      return orderSubmittedChecklist;
    }
  };
}

function paymentProcessingMock(paymentDetails) {
 return {
  processPayment: function (paymentDetails) {
    if (paymentDetails) {
      orderSubmittedChecklist.sentPaymentDetails = true;
    }
    return orderSubmittedChecklist;
  }
 };
}

function emailSenderMock(paymentConfirmation) {
  return {
    sendEmailConfirmation: function (paymentConfirmation) {
      if (paymentConfirmation) {
        orderSubmittedChecklist.sentOrderConfirmation = true;
      }
      return orderSubmittedChecklist;
    }
  };
}