从测试用例创建 HTTP 响应时无法反序列化

Question

我正在试着运行这个测试:

[TestFixture]
public class AccountManagementViewModelTests
{
[Test, BaseAutoData]
public void OnSync_Should_AddToDatabase_MissingLists(
[Frozen] Mock<IHttpClientService> httpClientService,
[Frozen] Mock<IDataStore<AppModel.List>> dataStore,
List<ApiModel.List> lists,
AccountManagementViewModel sut)
{
// Arrange
httpClientService
.Setup(x => x.GetAsync(It.IsAny<string>()))
.ReturnsAsync(new HttpResponseMessage()
{
Content = JsonContent.Create(lists)
});
// Act
sut.SyncCommand.Execute(null);
// Assert
dataStore.Verify(
d => d.AddItemAsync(
It.Is<AppModel.List>(
x => lists.Any(y => y.Guid == x.ListId))),
Times.Exactly(3));
}
}

问题是，当我试图反序列化响应时，我得到3个空实体

var allBackedupListsForCurrentUserRequestTask = _httpClientService.GetAsync(string.Format(ListApiEndPoints.GetListsByOwnerEmail, ApplicationUser.Current.Email));    
var allBackedupListsForCurrentUserRequest = await allBackedupListsForCurrentUserRequestTask;
var allBackedupListsForCurrentUser = await JsonSerializer.DeserializeAsync<List<ApiModel.List>>(await allBackedupListsForCurrentUserRequest.Content.ReadAsStreamAsync());

如果我检查allBackedupListsForCurrentUserRequest.Content的内容，我可以看到那里的所有数据，但是没有一个数据被反序列化到allBackedupListsForCurrentUser。

代码在真正的httprequest中工作得很好，这个问题只在单元测试中出现。

我在这里错过了什么?

涉及的其他类:

HttpClientService

using ListApp.Services.Interfaces;
using System;
using System.Net.Http;
using System.Threading.Tasks;
namespace ListApp.Services
{
public class HttpClientService : IHttpClientService
{
private static HttpClient _httpClient = new HttpClient();
public async Task<HttpResponseMessage> GetAsync(string requestUri)
{
return await _httpClient.GetAsync(requestUri);
}
public async Task<HttpResponseMessage> PutAsync(string requestUri, HttpContent content)
{
return await _httpClient.PutAsync(requestUri, content);
}
public async Task<HttpResponseMessage> PostAsync(string requestUri, HttpContent content)
{
return await _httpClient.PostAsync(requestUri, content);
}
public void SetBaseAddress(Uri baseAddress)
{
_httpClient.BaseAddress = baseAddress;
}
}
}

BaseAutoDataAttribute

using AutoFixture;
using AutoFixture.AutoMoq;
using AutoFixture.NUnit3;
using System;
namespace ListApp.UnitTests.DataTtributes
{
[AttributeUsage(AttributeTargets.Method)]
internal class BaseAutoDataAttribute : AutoDataAttribute
{
public BaseAutoDataAttribute() : base(() => CreateFixture()) { }
private static IFixture CreateFixture()
{
var fixture = new Fixture();
fixture.Customize(new AutoMoqCustomization { ConfigureMembers = true, GenerateDelegates = true });
return fixture;
}
}
}

Answer 1

事实证明，当应用程序启动时，我将JsonSerializerOptions.PropertyNameCaseInsensitive的值更改为true，而不是在测试期间。

在[OneTimeSetUp]上将其设置为true就可以了。

((JsonSerializerOptions)typeof(JsonSerializerOptions)
.GetField("s_defaultOptions",
System.Reflection.BindingFlags.Static |
System.Reflection.BindingFlags.NonPublic).GetValue(null))
.PropertyNameCaseInsensitive = true;

andres -ss6.