c# - 如何对 DataContractSerializer 进行单元测试？

Question

我创建了自己的序列化程序，代码如下:

public class BackgroundJobInfoSerializer : IBackgroundJobInfoSerializer
{
    private static readonly DataContractSerializer Serializer =
        new DataContractSerializer(typeof(BackgroundJobInfo),
                                   null,
                                   int.MaxValue,
                                   false,
                                   false,
                                   new MongoDbSurrogate());

    public string Serialize(BackgroundJobInfo info)
    {
        if (info == null)
        {
            throw new ArgumentNullException("info", BackgroundJobsLocalization.BackgroundJobInfoIsNull);
        }

        var stringBuilder = new StringBuilder();
        using (var stringWriter = new StringWriter(stringBuilder, CultureInfo.InvariantCulture))
        {
            var writer = XmlWriter.Create(stringWriter);
            Serializer.WriteObject(writer, info);
            writer.Flush();
        }

        return stringBuilder.ToString();
    }

    public BackgroundJobInfo Deserialize(string info){...}

现在我想创建一个单元测试。但我想知道如何测试它？

我应该检查哪些常见测试用例以确保一切正常？

Answer 1

1. 设置测试对象

2. 序列化测试对象

3. 重构为对象的新实例

4. 验证测试对象和新对象匹配的所有数据点