Specflow 读取 Json 响应

Question

需要测试具有 Json 作为响应的 GET。我没有在官方文档中找到有用的信息。

Feature: API_Retrieving_Platforms
    As an authorized user...
 @mytag
Scenario: Perform Get request
    Given I am an authorized user
    When I perform GET request "/api/hotels/lists/platforms",
    Then I receive a JSON in response:
    """
    [
        {
            "refId": 1,
            "label": "Mobile"
        },
        {
            "refId": 2,
            "label": "Desktop"
        }
    ]
    """

检索Json的步骤是：

[Then(@"I receive a JSON in response:")]
    public void ThenIReceiveAJSONInResponse(string JSON)
    {
        Assert.Equal(HttpStatusCode.OK, _responseMessage.StatusCode);
    }

如何解析这个？

Answer 1

改进这一点的一种方法是不在 Specflow 步骤中放置确切的 JSON。我建议使用类似

的东西

Then I receive a response that looks like 'myResponsefile.json'

然后您可以创建步骤来处理响应并查看存储库中的文件以将其与

[Then(@"I receive a response that looks like '(.*)'")]
public void IreceiveAJsonResponse(string responsefilenametocompare)
{
        string receivedjson = GetMyReceivedjsonObject();
        string filePathAndName = "myfile.json";
        string json = File.ReadAllText(filePathAndName); 

        JToken expected = JToken.Parse(json);
        JToken actual = JToken.Parse(receivedjson);

        actual.Should().BeEquivalentTo(expected);
}

Answer 2

简而言之：You're Cuking It Wrong.

较长的答案是您需要以不同的方式编写步骤，以便从中删除技术术语，并专注于业务价值。

Scenario: Retriving a list of platforms
    Given I am an authorized user
    When I retrieve a list of hotel platforms
    Then I should receive the following hotel platforms:
        | Platform |
        | Mobile   |
        | Desktop  |

步骤：当我检索酒店平台列表时

此步骤应使用 C# 代码发出 GET 请求。在场景上下文中保存该 GET 请求的响应。

步骤：那我应该会收到以下酒店平台：

做一个简单的断言，并省略像"Ref Id"这样的技术信息。平台名称才是您真正关心的。

这些步骤的粗略开始是：

using TechTalk.SpecFlow;
using TechTalk.SpecFlow.Assist;

[Binding]
public class PlatformSteps
{
    private readonly ScenarioContext scenario;

    /// <summary>
    /// Gets or sets the hotel platforms on the scenario context
    /// </summary>
    private IEnumerable<SomeJsonResponseType> HotelPlatforms
    {
        get => (IEnumerable<SomeJsonResponseType>)scenario["HotelPlatformsResponse"];
        set => scenario["HotelPlatformsResponse"] = value;
    }

    public PlatformSteps(ScenarioContext scenario)
    {
        this.scenario = scenario;
    }

    [When(@"^When I retrieve a list of hotel platforms")]
    public void WhenIRetrieveAListOfHotelPlatforms()
    {
        HotelPlatforms = api.GetHotelPlatforms(); // Or whatever you API call looks like
    }

    [Then(@"^I should receive the following hotel platforms:")]
    public void IShouldReceiveTheFollowingHotelPlatforms(Table table)
    {
        var actualPlatforms = HotelPlatforms.Select(r => r.PlatformName);

        table.CompareToSet(actualPlatforms);
    }
}

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