@@ -321,11 +321,13 @@ def test_base_rw(self, rwrepo):
321321def test_base_bare (self ,rwrepo ):
322322self ._do_base_tests (rwrepo )
323323
324- def test_root_module (self ):
324+ @with_rw_repo (k_subm_current ,bare = False )
325+ def test_root_module (self ,rwrepo ):
325326# Can query everything without problems
326327rm = RootModule (self .rorepo )
327328assert rm .module ()is self .rorepo
328329
330+ # try attributes
329331rm .binsha
330332rm .mode
331333rm .path
@@ -339,8 +341,46 @@ def test_root_module(self):
339341rm .config_writer ()
340342
341343# deep traversal gitdb / async
342- assert len (list (rm .traverse ()))== 2
344+ rsms = list (rm .traverse ())
345+ assert len (rsms )== 2 # gitdb and async, async being a child of gitdb
343346
344- # cannot set the parent commit asrepo name doesn 't exist
347+ # cannot set the parent commit asroot module's path didn 't exist
345348self .failUnlessRaises (ValueError ,rm .set_parent_commit ,'HEAD' )
346349
350+ # TEST UPDATE
351+ #############
352+ # setup commit which remove existing, add new and modify existing submodules
353+ rm = RootModule (rwrepo )
354+ assert len (rm .children ())== 1
355+
356+ # modify path
357+ sm = rm .children ()[0 ]
358+ pp = "path/prefix"
359+ sm .config_writer ().set_value ('path' ,join_path_native (pp ,sm .path ))
360+ cpathchange = rwrepo .index .commit ("changed sm path" )
361+
362+ # add submodule
363+ nsmn = "newsubmodule"
364+ nsmp = "submrepo"
365+ nsm = Submodule .add (rwrepo ,nsmn ,nsmp ,url = join_path_native (self .rorepo .working_tree_dir ,rsms [0 ].path ,rsms [1 ].path ))
366+ csmadded = rwrepo .index .commit ("Added submodule" )
367+
368+ # remove submodule - the previous one
369+ sm .set_parent_commit (csmadded )
370+ assert not sm .remove ().exists ()
371+ csmremoved = rwrepo .index .commit ("Removed submodule" )
372+
373+ # change url - to the first repository, this way we have a fast checkout, and a completely different
374+ # repository at the different url
375+ nsm .set_parent_commit (csmremoved )
376+ nsm .config_writer ().set_value ('url' ,join_path_native (self .rorepo .working_tree_dir ,rsms [0 ].path ))
377+ csmpathchange = rwrepo .index .commit ("changed url" )
378+
379+ # change branch
380+ nsm .set_parent_commit (csmpathchange )
381+ # the branch used here is an old failure branch which should ideally stay ... lets see how long that works ;)
382+ nbn = 'pack_offset_cache'
383+ assert nsm .branch .name != nbn
384+ nsm .config_writer ().set_value (Submodule .k_head_option ,nbn )
385+ csmbranchchange = rwrepo .index .commit ("changed branch" )
386+