ios - XCTest 用于测试模型对象

Question

下面我提到了我的模型对象。

class HVConnection: NSObject {

    //private var _data: NSMutableDictionary
    private var _data: NSMutableDictionary

    // MARK:- Init

    init(data: NSDictionary)
    {
        _data = NSMutableDictionary(dictionary: data)
    }

    // MARK:- Properties
    var last_name: String? {
        if let lastNameObject = _data.objectForKey("last_name") {
            return (idObject as! String)
        } else {
            return nil
        }
    }
}

然后我实现了一个测试用例来检查变量。 下面我提到了测试用例。

func testNetworkModelObject() {

    let connectionObject = ["network": ["first_name": "Dimuth", "last_name": "Lasantha", "business_email": "example@gmail.com", "currency": "USD", "language": "en-us", "category": "individual"]]
    let modelObject = HVConnection(data: connectionObject)

    XCTAssertEqual(modelObject.last_name, "Lasantha")
}

下面我提到了错误

XCTAssertEqual failed: ("nil") is not equal to ("Optional("Lasantha")")

请帮我解决这个问题

Answer 1

你的问题是你无法使用

_data.objectForKey("last_name")

在您的 HVConnection 中，因为它嵌套在另一个名为 network 的字典键中。

所以改用:

// MARK:- Properties
var last_name: String? {
    if let lastNameObject = _data.objectForKey("network")?.objectForKey("last_name") {
        return (lastNameObject as! String)
    } else {
        return nil
    }
}

这是为了演示正在使用的字典:

["network": // your dictionary is a dictionary within a dictionary
    ["first_name": "Dimuth", 
     "last_name": "Lasantha", 
     "business_email": "example@gmail.com", 
     "currency": "USD", 
     "language": "en-us", 
     "category": "individual"]
]

为了获取您的last_name，您必须获取关键network的字典才能获取实际的字典，一旦获得，您就可以检查该字典您可以从network key 返回last_name key 。