Question

我在使用Moq进行单元测试时收到NotSupportedException错误消息。

我有以下测试模拟结果。

public class Person
{
    public string Id { get; set; }
}

[Test]
public void List_Should_List_All_People()
{
  //Arrange
  const long total = 3;
  var list = new List<Person>();
  var queryResponse = new Mock<Task<ISearchResponse<Person>>>();
  queryResponse.Setup(x => x.Result.Total).Returns(total);

  for (var i = 0; i < total; i++)
  {
    list.Add(new Person { Id = Guid.NewGuid().ToString() });
  }
  queryResponse.Setup(x => x.Result.Documents).Returns(list);
  Thread.Sleep(2000);

  _elasticClient.Setup(x => x.SearchAsync(It.IsAny<Func<SearchDescriptor<Person>, ISearchRequest>>())).Returns(queryResponse.Object);

  // Act
  var response = _repository.List<Person>();

  //Assert
  response.Count().Should().Be(3);
}

queryResponse.Setup（x =＆gt; x.Result.Total）.Returns（total）; ＆lt; - 抛出异常

非虚拟（VB中可覆盖）成员的设置无效：mock =＆gt; mock.Result

它同步工作没有任何问题。

有关如何解决此异常的任何建议吗？

如何将其设置为虚拟？

Answer 1

您模拟Task<ISearchResponse<Person>>但不是ISearchResponse<Person>任务结果。

这是模拟任务结果的一个例子;你不具备你在你的例子中使用的所有类型，所以我已经简化了这一点

async void Main()
{

    var elasticClient = new Mock<IElasticClient>();

    //Arrange
    const long total = 3;
    var list = new List<Person>();
    for (var i = 0; i < total; i++)
    {
        list.Add(new Person { Id = Guid.NewGuid().ToString() });
    }

    var searchResponse = new Mock<ISearchResponse<Person>>();
    searchResponse.Setup(x => x.Total).Returns(total);
    searchResponse.Setup(x => x.Documents).Returns(list);

    _elasticClient.Setup(x => x.SearchAsync(It.IsAny<Func<SearchDescriptor<Person>, ISearchRequest>>()))
                  .ReturnsAsync(searchResponse.Object);

    // Act
    var response = await elasticClient.Object.SearchAsync<Person>(s => s.MatchAll());

    //Assert
    // outputs 3
    Console.WriteLine(response.Documents.Count());
}

public class Person
{
    public string Id { get; set; }
}

Moq在SearchAsync <t>测试中返回NotSupportedException

1 个答案: