tedgonzalez

- restore_cache:
    key: 1-pods-{{ checksum "Podfile.lock" }}
- run:
    name: Install CocoaPods
    command: |
      if [ ! -d "Pods" ]
      then
        curl https://cocoapods-specs.circleci.com/fetch-cocoapods-repo-from-s3.sh | bash -s cf
        bundle exec pod install
      fi

tedgonzalez

func testDecodingUnknownOrderItemsThrowsAnError() throws {
    let givenJsonData = #"""
    [
        "unknownDelivery": "unknownValue"
    ]
    """#.data(using: .utf8)!
    XCTAssertThrowsError(try decoder.decode([OrderItem].self, from: givenJsonData))
}

tedgonzalez

func testDecodingFoodDeliveryWithoutRestaurantThrowsAnError() throws {
    let givenJsonData = #"""
    [
        {
          "food": {
            "date": "2020-01-01",
            "totalCost": "8.00",
            "orders": [
              {
                "name": "Pizza",

tedgonzalez

func testDecodingArrayWithPassengerDeliverySucceeds() throws {
    let givenJsonData = #"""
    [
      {
        "food": {
          "date": "2020-01-01",
          "restaurantName": "Restaurant",
          "totalCost": "8.00",
          "orders": [
            {

tedgonzalez

func testDecodingEmptyArraySucceeds() throws {
    let givenJsonData = #"""
    []
    """#.data(using: .utf8)!
    let result = try decoder.decode([OrderItem].self, from: givenJsonData)
    let expected: [OrderItem] = []
    XCTAssertEqual(result, expected)
}

tedgonzalez

struct FoodDelivery: Codable, Equatable {
    struct Order: Codable, Equatable {
        let name: String
        let cost: String
    }
    let date: String
    let orders: [Order]
    let restaurantName: String
    let totalCost: String
}

tedgonzalez

struct GenericOrderItem: Codable {
    // common between all the objects
    let date: String
    let totalCost: String
    
    let carType: PassengerDelivery.CarType?
    let restaurantName: String?
    let distance: String?
    let orders: [FoodDelivery.Order]?
    let size: String?

tedgonzalez

enum OrderItem: Decodable, Equatable {
    case food(FoodDelivery)
    case package(PackageDelivery)
    case passenger(PassengerDelivery)
    
    enum CodingKeys: CodingKey, CaseIterable {
        case food
        case package
        case passenger
    }

tedgonzalez

struct PackageDelivery: Codable, Equatable {
    let date: String
    let size: String
    let totalCost: String
    let weight: String
}

tedgonzalez

struct PassengerDelivery: Codable, Equatable {
    struct CarType: Codable, Equatable {
        let name: String
        let distanceFare: String
        let timeFare: String
    }
    let carType: CarType
    let date: String
    let distance: String
    let time: String