Unit testing custom property on a MCMS posting

I needed to unit test a method that retrives a value from a custom property on a Microsoft Content Management Server posting. This is how I did it:

[Test]
public void GetLanguage_GetLanguageFromPosting()
{
    
    using(CmsApplicationContext appCtx = 
      
new CmsApplicationContext()) { appCtx.AuthenticateAsCurrentUser(
         PublishingMode.Update);
try { Template templ = appCtx.Searches.GetByGuid
               (
"{8DD8B72A-31B7-495B-80F9-1319FAA78BF2}")
               
as Template;
            Posting p
=
               appCtx.RootChannel.CreatePosting(templ); CustomProperty prop
=
               p.CustomProperties[
"language"];
            prop.Value
= "est"; Assert.AreEqual("est",
               NavigationHelper.GetLanguage(p)); }
finally { appCtx.RollbackAll(); } } }