反序列化复杂对象时，Json反序列化失败

Question

我正在尝试对方法进行单元测试。但是在此过程中，我必须反序列化以下对象。该对象还有许多其他复杂类型的属性，但是根据我的要求，以下是我如何初始化这些属性。

List<ClueResponse> clueResponses = new List<ClueResponse>
{
            new ClueResponse
            {
                ReportInfo=new ThirdPartyReportInfo
                {
                    ReportRequestDtTm = DateTime.Today,
                    ReportReceivedDtTm = DateTime.Today,
                    ReportReferenceNumber = "12345"
                },
                State="IN"
            }
};

此对象设置为HttpResponse内容，然后进行反序列化。

HttpResponseMessage response = new HttpResponseMessage
{
 Content = new ObjectContent<List<ClueResponse>>(clueResponses,new JsonMediaTypeFormatter())
};
_mockedBaseApiClient.Setup(m => m.GetAsync("PolicyApi", It.IsAny<string>()))
            .ReturnsAsync(response);

反序列化是HttpResponseMessage的扩展方法，为

public static async Task<TResult> Deserialize<TResult>(this HttpResponseMessage response)
{
        try
        {
            using (Stream stream = await response.Content.ReadAsStreamAsync())
            using (StreamReader streamReader = new StreamReader(stream))
            using (JsonReader textReader = new JsonTextReader(streamReader))
            {
                JsonSerializer serializer = new JsonSerializer
                {
                    NullValueHandling = NullValueHandling.Ignore,
                    MissingMemberHandling = MissingMemberHandling.Ignore,
                };
                return serializer.Deserialize<TResult>(textReader);
            }
        }
        catch (Exception ex)
        {
            ex.Data.Add("StatusCode", response.StatusCode);
            ex.Data.Add("ReasonPhrase", response.ReasonPhrase);
            throw new SerializationException("Failed to deserialize", ex);
        }
}

但是反序列化之后，我没有正确反序列化对象。我得到所有属性的所有null，即使是ReportInfo

var clueResponses= await clueResponseMessage.Deserialize<List<ClueResponse>>();

内容反序列化到列表中，但是每个Clue对象的所有属性都为空。