test1.cs

[Test]
public void ShouldRoundtripSerialization() {
    var config1 = new FsAgentSpecificConfiguration { DropPath = "test" };
    FsAgentSpecificConfiguration config2;

    using (var ms = new MemoryStream()) {
        var serializer = new XmlSerializer(typeof(FsAgentSpecificConfiguration));
        serializer.Serialize(ms, config1);
        ms.Position = 0;
        config2 = (FsAgentSpecificConfiguration)serializer.Deserialize(ms);
    }

    Assert.AreEqual(config1, config2);
}

test2.cs

[Test]
public void ShouldRoundtripSerialization() {
    var config = new FsAgentSpecificConfiguration { DropPath = "test" };
    Assert.AreEqual(config, Deserialize(Serialize(config)));
}