public void LoadSubfoldersTest()
{
const string topFolderName = "LoadSubfoldersTest";
const string subFolderName1 = "sub1";
const string subFolderName2 = "sub2";
IFolder topFolder = CreateNewTestFolder(topFolderName);
IFolder sub1 = topFolder.CreateSubfolder(subFolderName1);
IFolder sub2 = topFolder.CreateSubfolder(subFolderName2);
Assert.AreEqual(2, topFolder.SubFolders.Count);
Assert.IsNull(sub1.Properties.DisplayName, "Display name must be null after creation");
IRepository repoStandalone = GetStandaloneRepository();
IFolder sub1Alt = repoStandalone.RootFolder.GetDescendant(sub1.LogicalPath, false);
const string newDisplayName1 = "newDisplayName1";
sub1Alt.Properties.DisplayName = newDisplayName1;
// check that instances are preserved
topFolder.LoadSubfolders(true, false, false);
Assert.AreEqual(2, topFolder.SubFolders.Count);
Assert.AreSame(sub1, topFolder.GetSubFolder(subFolderName1), "Existing folder instance not preserved");
Assert.AreSame(sub2, topFolder.GetSubFolder(subFolderName2), "Existing folder instance not preserved");
Assert.IsNull(sub1.Properties.DisplayName, "Contents refreshed ");
// check that missing folder is purged
sub1Alt.Delete(true, true);
Assert.Throws(Is.InstanceOf <InvalidOperationException>(), () => sub1Alt.Delete(true, true));
topFolder.LoadSubfolders(true, false, false);
Assert.AreEqual(1, topFolder.SubFolders.Count);
Assert.AreSame(sub2, topFolder.GetSubFolder(subFolderName2), "Existing folder instance not preserved");
Assert.IsTrue(sub1.IsDetached, "Purged subfolder must be detached after reloading");
// check that subfolders are unloaded
topFolder.UnloadSubfolders();
Assert.IsFalse(topFolder.SubfoldersLoaded);
// now check that with reload OFF folders are reloaded
topFolder.LoadSubfolders(reloadIfLoaded: false, recursive: false, refreshContent: false);
Assert.AreEqual(1, topFolder.SubFolders.Count);
// recreating previously deleted folder
sub1 = topFolder.CreateSubfolder(subFolderName1);
Assert.IsNull(sub1.Properties.DisplayName, "Display name must be null after creation");
// note that tis is required to make sure data folders are loaded to check refreshContent option later
Assert.IsNull(sub1.GetDataFileIterator(false).Seek(DateTime.MinValue));
repoStandalone.RootFolder.UnloadSubfolders();
sub1Alt = repoStandalone.RootFolder.GetDescendant(sub1.LogicalPath, false);
sub1Alt.Properties.Description = newDisplayName1;
using (var writer = sub1Alt.GetWriter())
{
writer.Write(TestDataItem.GetTestItem(2));
}
topFolder.LoadSubfolders(reloadIfLoaded: false, recursive: false, refreshContent: false);
Assert.IsNull(sub1.Properties.Description, "Did not ask for content refreshing");
Assert.IsNull(sub1.GetDataFileIterator(false).Seek(DateTime.MinValue));
topFolder.LoadSubfolders(reloadIfLoaded: true, recursive: false, refreshContent: true);
Assert.AreEqual(newDisplayName1, sub1.Properties.Description, "Did ask for content to be refreshed");
Assert.IsNotNull(sub1.GetDataFileIterator(false).Seek(DateTime.MinValue));
}