[dataimport] remove eids_seq_start attribute from massive store Instead provide a utility function to reset the eid sequence.

[dataimport] massive store in slave mode shouldn't flush metadata The metadata insertion is to be done only by the master-mode store.

[dataimport] check that MassiveObjectStore restores the db schema properly Ideally we'd use "pg_dump --schema-only" to compare before/after, but when restoring a constraint such as: cstr48f9ceae537d68859b62c601681c8d3e CHECK (((cw_type)::text = ANY ((ARRAY['normal'::character varying, 'auto'::character varying])::text[]))) postgres will convert the text cast on array to a cast on each cell of array cstr48f9ceae537d68859b62c601681c8d3e CHECK (cw_type::text = ANY (ARRAY['normal'::character varying::text, 'auto'::character varying::text]))

[dataimport] split out listing indices/constraints from getting the corresponding query

[dataimport] massive_store: do not drop constraints multiple times It is now done in __init__.

[dataimport] massive_store: do not drop constraints with `cascade` since it breaks things We want to be able to restore constraints at the end of the import. If they are silently dropped due to a CASCADE, we can't do that.

[dataimport] massive_store: drop all constraints in __init__ and restore all in finish This should avoid dependency issues when dropping specific constraints (e.g. when dropping a primary constraint referenced by a foreign key constraint). We only do this in master mode, slave mode stores are supposed to work with an initialized db already.

[dataimport] massive_store: ignore primary key when requesting indexes on a table Primary keys show up in both lists of constraints and indexes. Pick a side and stick to it.

[dataimport] massive_store: reformat sql query

[devtools] Use super() in TestServerConfiguration.__init__() While cleaning up the use of init_config() in WSGIAppTC, I wondered why the method was trying to set the 'https_uiprops' and 'https_datadir_url' attributes on the config, when WebConfiguration's __init__ should be taking care of setting them. WSGIAppTC uses the default configuration - one that derives from ApptestConfiguration (noted as G below). The issue is that the class hierarchy of ApptestConfiguration includes TestServerConfiguration (C in the graph below) which calls ServerConfiguration's __init__ directly (B below). As B does not have an __init__ method, CubicWebConfiguration's __init__ is called directly (A below). This has the unintended consequence of preventing WebConfiguration's __init__ from being called. A / \ B D | | C E \ / F | G | ... A: cwconfig.CubicWebConfiguration B: server.serverconfig.ServerConfiguration C: devtools.TestServerConfiguration D: web.webconfig.WebConfiguration E: etwist.twconfig.WebConfigurationBase F: devtools.BaseApptestConfiguration G: devtools.ApptestConfiguration NB: unittest_wsgi wasn't really broken, as it's the only test in wsgi/test/, but I figured I might as well clean it up. Related to #9297611.