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我已经编写了 valueconverter 并为它编写了一个测试用例。当我将模拟映射器传递给解析上下文时，它的行为与设置不同。这是我的代码 -

转换器 -

public class AirlineConverter : IValueConverter<string, Airline>
{
    public Airline Convert(string sourceMember, ResolutionContext context)
    {
        var airlines = context.Options.Items["automap_airlines"] as List<EngineContract.Airline>;

        var airline = airlines.Find(airLine => airLine.Code == sourceMember);

        return context.Mapper.Map<Airline>(airline);
    }
}

测试用例 -

        [Theory]
    [JsonFileData("airlines.json")]
    public void Translate_Engine_Airline_ViewModel_Airline(string airlines)
    {
        var airlinesList = JsonConvert.DeserializeObject<List<EngineContract.Airline>>(airlines);

        var mappingOperationMock = new Mock<IMappingOperationOptions<string, Airline>>(MockBehavior.Strict);
        mappingOperationMock.Setup(x => x.Items).Returns(new Dictionary<string, object>() { { "automap_airlines", airlinesList } });

        var airlineConverter = new AirlineConverter();

        var mockMapper = new Mock<IRuntimeMapper>();
        
       mockMapper.Setup(x => x.Map<Airline>(It.IsAny<EngineContract.Airline>())).Returns(
         new Airline() { Code = "AA" }
       ); //not getting this object in AirlineConverter in response of context.Mapper.Map<Airline>(airline);

        var resolutionContext = new ResolutionContext(mappingOperationMock.Object, mockMapper.Object);

        var convertedAirline = airlineConverter.Convert("AA", resolutionContext);

        Assert.Equal("AA", convertedAirline.Code);
    }

我在响应 context.Mapper.Map(airline); 时得到空值。在航空公司转换器中。这里有什么问题？

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