c# - 在 c# Specflow 中断言 Json 输出

Question

我正在 specflow 中编写测试以验证 API 获取输出

验证代码是

 [Then(@"the customer details will be returned")]
    public void ThenTheCustomerDetailsWillBeReturned ()
    {
        var actualResponse = ScenarioContextWrapper.Response;
        JObject jsonResult = new JObject();
        jsonResult = JObject.Parse(actualResponse);
        Assert.AreEqual("ABC008", jsonResult.GetType().GetProperty("CustomerCode").GetValue(jsonResult, null));
        Assert.AreEqual("ABC Industry", jsonResult.GetType().GetProperty("CustomerName").GetValue(jsonResult, null));

    }

但我收到异常“{“无法对空引用执行运行时绑定(bind)”}”。

API 的输出是

              {{
  "Pagination": {
"NumberOfItems": 1,
"PageSize": 200,
"PageNumber": 1,
"NumberOfPages": 1
},
"Items": [
{
  "Addresses": [],
  "CustomerCode": "ABC008",
  "CustomerName": "ABC Industry",
  "GSTVATNumber": null,
  "BankName": null,
  "BankBranch": null,
  "BankAccount": null,
  "Website": null,
  "PhoneNumber": null,
  "FaxNumber": null,
  "MobileNumber": null,
  "DDINumber": null,
  "TollFreeNumber": null,
  "Email": null,
  "EmailCC": null,
  "Currency": {
    "CurrencyCode": "NZD",
    "Description": "New Zealand, Dollars",
    "Guid": "29252c92-3d0e-4eba-a613-f9c6c22ed3a8",
    "LastModifiedOn": "2017-01-31T20:22:20.816Z"
  },
  "Notes": null,
  "Taxable": true,
  "XeroContactId": null,
  "SalesPerson": null,
  "DiscountRate": null,
  "PrintPackingSlipInsteadOfInvoice": null,
  "PrintInvoice": null,
  "StopCredit": false,
  "Obsolete": false,
  "XeroSalesAccount": null,
  "XeroCostOfGoodsAccount": null,
  "SellPriceTier": "",
  "SellPriceTierReference": null,
  "CustomerType": "",
  "PaymentTerm": "",
  "ContactFirstName": null,
  "ContactLastName": null,
  "SourceId": null,
  "CreatedBy": "qa+applicant@tyt.com",
  "CreatedOn": "2017-02-05T18:50:53.697Z",
  "Guid": "15145a60-8688-48a5-b849-ab66da3c0288",
  "LastModifiedOn": "2017-02-05T18:50:53.697Z"
}
]
}}

有人可以帮忙断言客户代码吗

谢谢

Answer 1

我使用了一个简短的 JSON 作为示例，因为您问题中的原始格式不完整:

        string actualResponse = "{\"Items\":[{\"CustomerCode\": \"ABC008\", \"TestBla\":\"Bla\"}]}";
        JObject jsonResult = JObject.Parse(actualResponse);

        // Get Null exception. Property does not exist.
        //Object value = jsonResult.GetType().GetProperty("Items").GetValue(jsonResult, null); 

        // Will work
        var items = jsonResult["Items"];

        // To assert CustomerCode:
        string value = jsonResult["Items"][0]["CustomerCode"].Value<string>();
        Assert.AreEqual("ABC008", value);

GetProperty 获取类属性。在您的例子中，类是 JObject。

如果您将对象转换为您自己的类(比方说 Result)，那么您可以使用它自己的属性(比方说 Item):

    Result result = jsonResult.ToObject<Result>();
    var items = result.Items