public async void TestVersions()
{
IBranch master = await Fixture.Repository.MasterAsync();
JObject nodeObj = new JObject(
new JProperty("title", "Test Node")
);
IBaseNode node = await master.CreateNodeAsync(nodeObj);
string firstChangeset = node.Data.SelectToken("_system.changeset").ToString();
node.Data["title"] = "new stuff";
await node.UpdateAsync();
await node.ReloadAsync();
Assert.Equal("new stuff", node.Data.GetValue("title").ToString());
List <IBaseNode> versions = await node.ListVersionsAsync();
Assert.Equal(2, versions.Count);
IBaseNode firstVersion = await node.ReadVersionAsync(firstChangeset);
Assert.Equal("Test Node", firstVersion.Data["title"].ToString());
IBaseNode restoredVersion = await node.RestoreVersionAsync(firstChangeset);
Assert.Equal("Test Node", restoredVersion.Data["title"].ToString());
}