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Diffstat (limited to 'tests/couch/test_sync.py')
| -rw-r--r-- | tests/couch/test_sync.py | 700 |
1 files changed, 700 insertions, 0 deletions
diff --git a/tests/couch/test_sync.py b/tests/couch/test_sync.py new file mode 100644 index 00000000..c353518e --- /dev/null +++ b/tests/couch/test_sync.py @@ -0,0 +1,700 @@ +from leap.soledad.common.l2db import vectorclock +from leap.soledad.common.l2db import errors as u1db_errors + +from testscenarios import TestWithScenarios + +from test_soledad import u1db_tests as tests +from test_soledad.util import CouchDBTestCase +from test_soledad.util import sync_via_synchronizer +from test_soledad.u1db_tests import DatabaseBaseTests + +from .common import simple_doc +from .common import COUCH_SCENARIOS + + +sync_scenarios = [] +for name, scenario in COUCH_SCENARIOS: + scenario = dict(scenario) + scenario['do_sync'] = sync_via_synchronizer + sync_scenarios.append((name, scenario)) + scenario = dict(scenario) + + +# ----------------------------------------------------------------------------- +# The following tests come from `u1db.tests.test_sync`. +# ----------------------------------------------------------------------------- + +class CouchBackendSyncTests( + TestWithScenarios, + DatabaseBaseTests, + CouchDBTestCase): + + scenarios = sync_scenarios + + def create_database(self, replica_uid, sync_role=None): + if replica_uid == 'test' and sync_role is None: + # created up the chain by base class but unused + return None + db = self.create_database_for_role(replica_uid, sync_role) + if sync_role: + self._use_tracking[db] = (replica_uid, sync_role) + return db + + def create_database_for_role(self, replica_uid, sync_role): + # hook point for reuse + return DatabaseBaseTests.create_database(self, replica_uid) + + def copy_database(self, db, sync_role=None): + # DO NOT COPY OR REUSE THIS CODE OUTSIDE TESTS: COPYING U1DB DATABASES + # IS THE WRONG THING TO DO, THE ONLY REASON WE DO SO HERE IS TO TEST + # THAT WE CORRECTLY DETECT IT HAPPENING SO THAT WE CAN RAISE ERRORS + # RATHER THAN CORRUPT USER DATA. USE SYNC INSTEAD, OR WE WILL SEND + # NINJA TO YOUR HOUSE. + db_copy = self.copy_database_for_test(self, db) + name, orig_sync_role = self._use_tracking[db] + self._use_tracking[db_copy] = ( + name + '(copy)', sync_role or orig_sync_role) + return db_copy + + def sync(self, db_from, db_to, trace_hook=None, + trace_hook_shallow=None): + from_name, from_sync_role = self._use_tracking[db_from] + to_name, to_sync_role = self._use_tracking[db_to] + if from_sync_role not in ('source', 'both'): + raise Exception("%s marked for %s use but used as source" % + (from_name, from_sync_role)) + if to_sync_role not in ('target', 'both'): + raise Exception("%s marked for %s use but used as target" % + (to_name, to_sync_role)) + return self.do_sync(self, db_from, db_to, trace_hook, + trace_hook_shallow) + + def setUp(self): + self.db = None + self.db1 = None + self.db2 = None + self.db3 = None + self.db1_copy = None + self.db2_copy = None + self._use_tracking = {} + DatabaseBaseTests.setUp(self) + + def tearDown(self): + for db in [ + self.db, self.db1, self.db2, + self.db3, self.db1_copy, self.db2_copy + ]: + if db is not None: + self.delete_db(db._dbname) + db.close() + DatabaseBaseTests.tearDown(self) + + def assertLastExchangeLog(self, db, expected): + log = getattr(db, '_last_exchange_log', None) + if log is None: + return + self.assertEqual(expected, log) + + def test_sync_tracks_db_generation_of_other(self): + self.db1 = self.create_database('test1', 'source') + self.db2 = self.create_database('test2', 'target') + self.assertEqual(0, self.sync(self.db1, self.db2)) + self.assertEqual( + (0, ''), self.db1._get_replica_gen_and_trans_id('test2')) + self.assertEqual( + (0, ''), self.db2._get_replica_gen_and_trans_id('test1')) + self.assertLastExchangeLog( + self.db2, + {'receive': {'docs': [], 'last_known_gen': 0}, + 'return': {'docs': [], 'last_gen': 0}}) + + def test_sync_autoresolves(self): + self.db1 = self.create_database('test1', 'source') + self.db2 = self.create_database('test2', 'target') + doc1 = self.db1.create_doc_from_json(simple_doc, doc_id='doc') + rev1 = doc1.rev + doc2 = self.db2.create_doc_from_json(simple_doc, doc_id='doc') + rev2 = doc2.rev + self.sync(self.db1, self.db2) + doc = self.db1.get_doc('doc') + self.assertFalse(doc.has_conflicts) + self.assertEqual(doc.rev, self.db2.get_doc('doc').rev) + v = vectorclock.VectorClockRev(doc.rev) + self.assertTrue(v.is_newer(vectorclock.VectorClockRev(rev1))) + self.assertTrue(v.is_newer(vectorclock.VectorClockRev(rev2))) + + def test_sync_autoresolves_moar(self): + # here we test that when a database that has a conflicted document is + # the source of a sync, and the target database has a revision of the + # conflicted document that is newer than the source database's, and + # that target's database's document's content is the same as the + # source's document's conflict's, the source's document's conflict gets + # autoresolved, and the source's document's revision bumped. + # + # idea is as follows: + # A B + # a1 - + # `-------> + # a1 a1 + # v v + # a2 a1b1 + # `-------> + # a1b1+a2 a1b1 + # v + # a1b1+a2 a1b2 (a1b2 has same content as a2) + # `-------> + # a3b2 a1b2 (autoresolved) + # `-------> + # a3b2 a3b2 + self.db1 = self.create_database('test1', 'source') + self.db2 = self.create_database('test2', 'target') + self.db1.create_doc_from_json(simple_doc, doc_id='doc') + self.sync(self.db1, self.db2) + for db, content in [(self.db1, '{}'), (self.db2, '{"hi": 42}')]: + doc = db.get_doc('doc') + doc.set_json(content) + db.put_doc(doc) + self.sync(self.db1, self.db2) + # db1 and db2 now both have a doc of {hi:42}, but db1 has a conflict + doc = self.db1.get_doc('doc') + rev1 = doc.rev + self.assertTrue(doc.has_conflicts) + # set db2 to have a doc of {} (same as db1 before the conflict) + doc = self.db2.get_doc('doc') + doc.set_json('{}') + self.db2.put_doc(doc) + rev2 = doc.rev + # sync it across + self.sync(self.db1, self.db2) + # tadaa! + doc = self.db1.get_doc('doc') + self.assertFalse(doc.has_conflicts) + vec1 = vectorclock.VectorClockRev(rev1) + vec2 = vectorclock.VectorClockRev(rev2) + vec3 = vectorclock.VectorClockRev(doc.rev) + self.assertTrue(vec3.is_newer(vec1)) + self.assertTrue(vec3.is_newer(vec2)) + # because the conflict is on the source, sync it another time + self.sync(self.db1, self.db2) + # make sure db2 now has the exact same thing + self.assertEqual(self.db1.get_doc('doc'), self.db2.get_doc('doc')) + + def test_sync_autoresolves_moar_backwards(self): + # here we test that when a database that has a conflicted document is + # the target of a sync, and the source database has a revision of the + # conflicted document that is newer than the target database's, and + # that source's database's document's content is the same as the + # target's document's conflict's, the target's document's conflict gets + # autoresolved, and the document's revision bumped. + # + # idea is as follows: + # A B + # a1 - + # `-------> + # a1 a1 + # v v + # a2 a1b1 + # `-------> + # a1b1+a2 a1b1 + # v + # a1b1+a2 a1b2 (a1b2 has same content as a2) + # <-------' + # a3b2 a3b2 (autoresolved and propagated) + self.db1 = self.create_database('test1', 'both') + self.db2 = self.create_database('test2', 'both') + self.db1.create_doc_from_json(simple_doc, doc_id='doc') + self.sync(self.db1, self.db2) + for db, content in [(self.db1, '{}'), (self.db2, '{"hi": 42}')]: + doc = db.get_doc('doc') + doc.set_json(content) + db.put_doc(doc) + self.sync(self.db1, self.db2) + # db1 and db2 now both have a doc of {hi:42}, but db1 has a conflict + doc = self.db1.get_doc('doc') + rev1 = doc.rev + self.assertTrue(doc.has_conflicts) + revc = self.db1.get_doc_conflicts('doc')[-1].rev + # set db2 to have a doc of {} (same as db1 before the conflict) + doc = self.db2.get_doc('doc') + doc.set_json('{}') + self.db2.put_doc(doc) + rev2 = doc.rev + # sync it across + self.sync(self.db2, self.db1) + # tadaa! + doc = self.db1.get_doc('doc') + self.assertFalse(doc.has_conflicts) + vec1 = vectorclock.VectorClockRev(rev1) + vec2 = vectorclock.VectorClockRev(rev2) + vec3 = vectorclock.VectorClockRev(doc.rev) + vecc = vectorclock.VectorClockRev(revc) + self.assertTrue(vec3.is_newer(vec1)) + self.assertTrue(vec3.is_newer(vec2)) + self.assertTrue(vec3.is_newer(vecc)) + # make sure db2 now has the exact same thing + self.assertEqual(self.db1.get_doc('doc'), self.db2.get_doc('doc')) + + def test_sync_autoresolves_moar_backwards_three(self): + # same as autoresolves_moar_backwards, but with three databases (note + # all the syncs go in the same direction -- this is a more natural + # scenario): + # + # A B C + # a1 - - + # `-------> + # a1 a1 - + # `-------> + # a1 a1 a1 + # v v + # a2 a1b1 a1 + # `-------------------> + # a2 a1b1 a2 + # `-------> + # a2+a1b1 a2 + # v + # a2 a2+a1b1 a2c1 (same as a1b1) + # `-------------------> + # a2c1 a2+a1b1 a2c1 + # `-------> + # a2b2c1 a2b2c1 a2c1 + self.db1 = self.create_database('test1', 'source') + self.db2 = self.create_database('test2', 'both') + self.db3 = self.create_database('test3', 'target') + self.db1.create_doc_from_json(simple_doc, doc_id='doc') + self.sync(self.db1, self.db2) + self.sync(self.db2, self.db3) + for db, content in [(self.db2, '{"hi": 42}'), + (self.db1, '{}'), + ]: + doc = db.get_doc('doc') + doc.set_json(content) + db.put_doc(doc) + self.sync(self.db1, self.db3) + self.sync(self.db2, self.db3) + # db2 and db3 now both have a doc of {}, but db2 has a + # conflict + doc = self.db2.get_doc('doc') + self.assertTrue(doc.has_conflicts) + revc = self.db2.get_doc_conflicts('doc')[-1].rev + self.assertEqual('{}', doc.get_json()) + self.assertEqual(self.db3.get_doc('doc').get_json(), doc.get_json()) + self.assertEqual(self.db3.get_doc('doc').rev, doc.rev) + # set db3 to have a doc of {hi:42} (same as db2 before the conflict) + doc = self.db3.get_doc('doc') + doc.set_json('{"hi": 42}') + self.db3.put_doc(doc) + rev3 = doc.rev + # sync it across to db1 + self.sync(self.db1, self.db3) + # db1 now has hi:42, with a rev that is newer than db2's doc + doc = self.db1.get_doc('doc') + rev1 = doc.rev + self.assertFalse(doc.has_conflicts) + self.assertEqual('{"hi": 42}', doc.get_json()) + VCR = vectorclock.VectorClockRev + self.assertTrue(VCR(rev1).is_newer(VCR(self.db2.get_doc('doc').rev))) + # so sync it to db2 + self.sync(self.db1, self.db2) + # tadaa! + doc = self.db2.get_doc('doc') + self.assertFalse(doc.has_conflicts) + # db2's revision of the document is strictly newer than db1's before + # the sync, and db3's before that sync way back when + self.assertTrue(VCR(doc.rev).is_newer(VCR(rev1))) + self.assertTrue(VCR(doc.rev).is_newer(VCR(rev3))) + self.assertTrue(VCR(doc.rev).is_newer(VCR(revc))) + # make sure both dbs now have the exact same thing + self.assertEqual(self.db1.get_doc('doc'), self.db2.get_doc('doc')) + + def test_sync_puts_changes(self): + self.db1 = self.create_database('test1', 'source') + self.db2 = self.create_database('test2', 'target') + doc = self.db1.create_doc_from_json(simple_doc) + self.assertEqual(1, self.sync(self.db1, self.db2)) + self.assertGetDoc(self.db2, doc.doc_id, doc.rev, simple_doc, False) + self.assertEqual(1, self.db1._get_replica_gen_and_trans_id('test2')[0]) + self.assertEqual(1, self.db2._get_replica_gen_and_trans_id('test1')[0]) + self.assertLastExchangeLog( + self.db2, + {'receive': {'docs': [(doc.doc_id, doc.rev)], + 'source_uid': 'test1', + 'source_gen': 1, 'last_known_gen': 0}, + 'return': {'docs': [], 'last_gen': 1}}) + + def test_sync_pulls_changes(self): + self.db1 = self.create_database('test1', 'source') + self.db2 = self.create_database('test2', 'target') + doc = self.db2.create_doc_from_json(simple_doc) + self.assertEqual(0, self.sync(self.db1, self.db2)) + self.assertGetDoc(self.db1, doc.doc_id, doc.rev, simple_doc, False) + self.assertEqual(1, self.db1._get_replica_gen_and_trans_id('test2')[0]) + self.assertEqual(1, self.db2._get_replica_gen_and_trans_id('test1')[0]) + self.assertLastExchangeLog( + self.db2, + {'receive': {'docs': [], 'last_known_gen': 0}, + 'return': {'docs': [(doc.doc_id, doc.rev)], + 'last_gen': 1}}) + self.assertGetDoc(self.db2, doc.doc_id, doc.rev, simple_doc, False) + + def test_sync_pulling_doesnt_update_other_if_changed(self): + self.db1 = self.create_database('test1', 'source') + self.db2 = self.create_database('test2', 'target') + doc = self.db2.create_doc_from_json(simple_doc) + # After the local side has sent its list of docs, before we start + # receiving the "targets" response, we update the local database with a + # new record. + # When we finish synchronizing, we can notice that something locally + # was updated, and we cannot tell c2 our new updated generation + + def before_get_docs(state): + if state != 'before get_docs': + return + self.db1.create_doc_from_json(simple_doc) + + self.assertEqual(0, self.sync(self.db1, self.db2, + trace_hook=before_get_docs)) + self.assertLastExchangeLog( + self.db2, + {'receive': {'docs': [], 'last_known_gen': 0}, + 'return': {'docs': [(doc.doc_id, doc.rev)], + 'last_gen': 1}}) + self.assertEqual(1, self.db1._get_replica_gen_and_trans_id('test2')[0]) + # c2 should not have gotten a '_record_sync_info' call, because the + # local database had been updated more than just by the messages + # returned from c2. + self.assertEqual( + (0, ''), self.db2._get_replica_gen_and_trans_id('test1')) + + def test_sync_doesnt_update_other_if_nothing_pulled(self): + self.db1 = self.create_database('test1', 'source') + self.db2 = self.create_database('test2', 'target') + self.db1.create_doc_from_json(simple_doc) + + def no_record_sync_info(state): + if state != 'record_sync_info': + return + self.fail('SyncTarget.record_sync_info was called') + self.assertEqual(1, self.sync(self.db1, self.db2, + trace_hook_shallow=no_record_sync_info)) + self.assertEqual( + 1, + self.db2._get_replica_gen_and_trans_id(self.db1._replica_uid)[0]) + + def test_sync_ignores_convergence(self): + self.db1 = self.create_database('test1', 'source') + self.db2 = self.create_database('test2', 'both') + doc = self.db1.create_doc_from_json(simple_doc) + self.db3 = self.create_database('test3', 'target') + self.assertEqual(1, self.sync(self.db1, self.db3)) + self.assertEqual(0, self.sync(self.db2, self.db3)) + self.assertEqual(1, self.sync(self.db1, self.db2)) + self.assertLastExchangeLog( + self.db2, + {'receive': {'docs': [(doc.doc_id, doc.rev)], + 'source_uid': 'test1', + 'source_gen': 1, 'last_known_gen': 0}, + 'return': {'docs': [], 'last_gen': 1}}) + + def test_sync_ignores_superseded(self): + self.db1 = self.create_database('test1', 'both') + self.db2 = self.create_database('test2', 'both') + doc = self.db1.create_doc_from_json(simple_doc) + doc_rev1 = doc.rev + self.db3 = self.create_database('test3', 'target') + self.sync(self.db1, self.db3) + self.sync(self.db2, self.db3) + new_content = '{"key": "altval"}' + doc.set_json(new_content) + self.db1.put_doc(doc) + doc_rev2 = doc.rev + self.sync(self.db2, self.db1) + self.assertLastExchangeLog( + self.db1, + {'receive': {'docs': [(doc.doc_id, doc_rev1)], + 'source_uid': 'test2', + 'source_gen': 1, 'last_known_gen': 0}, + 'return': {'docs': [(doc.doc_id, doc_rev2)], + 'last_gen': 2}}) + self.assertGetDoc(self.db1, doc.doc_id, doc_rev2, new_content, False) + + def test_sync_sees_remote_conflicted(self): + self.db1 = self.create_database('test1', 'source') + self.db2 = self.create_database('test2', 'target') + doc1 = self.db1.create_doc_from_json(simple_doc) + doc_id = doc1.doc_id + doc1_rev = doc1.rev + new_doc = '{"key": "altval"}' + doc2 = self.db2.create_doc_from_json(new_doc, doc_id=doc_id) + doc2_rev = doc2.rev + self.assertTransactionLog([doc1.doc_id], self.db1) + self.sync(self.db1, self.db2) + self.assertLastExchangeLog( + self.db2, + {'receive': {'docs': [(doc_id, doc1_rev)], + 'source_uid': 'test1', + 'source_gen': 1, 'last_known_gen': 0}, + 'return': {'docs': [(doc_id, doc2_rev)], + 'last_gen': 1}}) + self.assertTransactionLog([doc_id, doc_id], self.db1) + self.assertGetDoc(self.db1, doc_id, doc2_rev, new_doc, True) + self.assertGetDoc(self.db2, doc_id, doc2_rev, new_doc, False) + + def test_sync_sees_remote_delete_conflicted(self): + self.db1 = self.create_database('test1', 'source') + self.db2 = self.create_database('test2', 'target') + doc1 = self.db1.create_doc_from_json(simple_doc) + doc_id = doc1.doc_id + self.sync(self.db1, self.db2) + doc2 = self.make_document(doc1.doc_id, doc1.rev, doc1.get_json()) + new_doc = '{"key": "altval"}' + doc1.set_json(new_doc) + self.db1.put_doc(doc1) + self.db2.delete_doc(doc2) + self.assertTransactionLog([doc_id, doc_id], self.db1) + self.sync(self.db1, self.db2) + self.assertLastExchangeLog( + self.db2, + {'receive': {'docs': [(doc_id, doc1.rev)], + 'source_uid': 'test1', + 'source_gen': 2, 'last_known_gen': 1}, + 'return': {'docs': [(doc_id, doc2.rev)], + 'last_gen': 2}}) + self.assertTransactionLog([doc_id, doc_id, doc_id], self.db1) + self.assertGetDocIncludeDeleted(self.db1, doc_id, doc2.rev, None, True) + self.assertGetDocIncludeDeleted( + self.db2, doc_id, doc2.rev, None, False) + + def test_sync_local_race_conflicted(self): + self.db1 = self.create_database('test1', 'source') + self.db2 = self.create_database('test2', 'target') + doc = self.db1.create_doc_from_json(simple_doc) + doc_id = doc.doc_id + doc1_rev = doc.rev + self.sync(self.db1, self.db2) + content1 = '{"key": "localval"}' + content2 = '{"key": "altval"}' + doc.set_json(content2) + self.db2.put_doc(doc) + doc2_rev2 = doc.rev + triggered = [] + + def after_whatschanged(state): + if state != 'after whats_changed': + return + triggered.append(True) + doc = self.make_document(doc_id, doc1_rev, content1) + self.db1.put_doc(doc) + + self.sync(self.db1, self.db2, trace_hook=after_whatschanged) + self.assertEqual([True], triggered) + self.assertGetDoc(self.db1, doc_id, doc2_rev2, content2, True) + + def test_sync_propagates_deletes(self): + self.db1 = self.create_database('test1', 'source') + self.db2 = self.create_database('test2', 'both') + doc1 = self.db1.create_doc_from_json(simple_doc) + doc_id = doc1.doc_id + self.sync(self.db1, self.db2) + self.db3 = self.create_database('test3', 'target') + self.sync(self.db1, self.db3) + self.db1.delete_doc(doc1) + deleted_rev = doc1.rev + self.sync(self.db1, self.db2) + self.assertLastExchangeLog( + self.db2, + {'receive': {'docs': [(doc_id, deleted_rev)], + 'source_uid': 'test1', + 'source_gen': 2, 'last_known_gen': 1}, + 'return': {'docs': [], 'last_gen': 2}}) + self.assertGetDocIncludeDeleted( + self.db1, doc_id, deleted_rev, None, False) + self.assertGetDocIncludeDeleted( + self.db2, doc_id, deleted_rev, None, False) + self.sync(self.db2, self.db3) + self.assertLastExchangeLog( + self.db3, + {'receive': {'docs': [(doc_id, deleted_rev)], + 'source_uid': 'test2', + 'source_gen': 2, 'last_known_gen': 0}, + 'return': {'docs': [], 'last_gen': 2}}) + self.assertGetDocIncludeDeleted( + self.db3, doc_id, deleted_rev, None, False) + + def test_sync_propagates_deletes_2(self): + self.db1 = self.create_database('test1', 'source') + self.db2 = self.create_database('test2', 'target') + self.db1.create_doc_from_json('{"a": "1"}', doc_id='the-doc') + self.sync(self.db1, self.db2) + doc1_2 = self.db2.get_doc('the-doc') + self.db2.delete_doc(doc1_2) + self.sync(self.db1, self.db2) + self.assertGetDocIncludeDeleted( + self.db1, 'the-doc', doc1_2.rev, None, False) + + def test_sync_propagates_resolution(self): + self.db1 = self.create_database('test1', 'both') + self.db2 = self.create_database('test2', 'both') + doc1 = self.db1.create_doc_from_json('{"a": 1}', doc_id='the-doc') + self.db3 = self.create_database('test3', 'both') + self.sync(self.db2, self.db1) + self.assertEqual( + self.db1._get_generation_info(), + self.db2._get_replica_gen_and_trans_id(self.db1._replica_uid)) + self.assertEqual( + self.db2._get_generation_info(), + self.db1._get_replica_gen_and_trans_id(self.db2._replica_uid)) + self.sync(self.db3, self.db1) + # update on 2 + doc2 = self.make_document('the-doc', doc1.rev, '{"a": 2}') + self.db2.put_doc(doc2) + self.sync(self.db2, self.db3) + self.assertEqual(self.db3.get_doc('the-doc').rev, doc2.rev) + # update on 1 + doc1.set_json('{"a": 3}') + self.db1.put_doc(doc1) + # conflicts + self.sync(self.db2, self.db1) + self.sync(self.db3, self.db1) + self.assertTrue(self.db2.get_doc('the-doc').has_conflicts) + self.assertTrue(self.db3.get_doc('the-doc').has_conflicts) + # resolve + conflicts = self.db2.get_doc_conflicts('the-doc') + doc4 = self.make_document('the-doc', None, '{"a": 4}') + revs = [doc.rev for doc in conflicts] + self.db2.resolve_doc(doc4, revs) + doc2 = self.db2.get_doc('the-doc') + self.assertEqual(doc4.get_json(), doc2.get_json()) + self.assertFalse(doc2.has_conflicts) + self.sync(self.db2, self.db3) + doc3 = self.db3.get_doc('the-doc') + self.assertEqual(doc4.get_json(), doc3.get_json()) + self.assertFalse(doc3.has_conflicts) + + def test_sync_supersedes_conflicts(self): + self.db1 = self.create_database('test1', 'both') + self.db2 = self.create_database('test2', 'target') + self.db3 = self.create_database('test3', 'both') + doc1 = self.db1.create_doc_from_json('{"a": 1}', doc_id='the-doc') + self.db2.create_doc_from_json('{"b": 1}', doc_id='the-doc') + self.db3.create_doc_from_json('{"c": 1}', doc_id='the-doc') + self.sync(self.db3, self.db1) + self.assertEqual( + self.db1._get_generation_info(), + self.db3._get_replica_gen_and_trans_id(self.db1._replica_uid)) + self.assertEqual( + self.db3._get_generation_info(), + self.db1._get_replica_gen_and_trans_id(self.db3._replica_uid)) + self.sync(self.db3, self.db2) + self.assertEqual( + self.db2._get_generation_info(), + self.db3._get_replica_gen_and_trans_id(self.db2._replica_uid)) + self.assertEqual( + self.db3._get_generation_info(), + self.db2._get_replica_gen_and_trans_id(self.db3._replica_uid)) + self.assertEqual(3, len(self.db3.get_doc_conflicts('the-doc'))) + doc1.set_json('{"a": 2}') + self.db1.put_doc(doc1) + self.sync(self.db3, self.db1) + # original doc1 should have been removed from conflicts + self.assertEqual(3, len(self.db3.get_doc_conflicts('the-doc'))) + + def test_sync_stops_after_get_sync_info(self): + self.db1 = self.create_database('test1', 'source') + self.db2 = self.create_database('test2', 'target') + self.db1.create_doc_from_json(tests.simple_doc) + self.sync(self.db1, self.db2) + + def put_hook(state): + self.fail("Tracehook triggered for %s" % (state,)) + + self.sync(self.db1, self.db2, trace_hook_shallow=put_hook) + + def test_sync_detects_identical_replica_uid(self): + self.db1 = self.create_database('test1', 'source') + self.db2 = self.create_database('test1', 'target') + self.db1.create_doc_from_json(tests.simple_doc, doc_id='doc1') + self.assertRaises( + u1db_errors.InvalidReplicaUID, self.sync, self.db1, self.db2) + + def test_sync_detects_rollback_in_source(self): + self.db1 = self.create_database('test1', 'source') + self.db2 = self.create_database('test2', 'target') + self.db1.create_doc_from_json(tests.simple_doc, doc_id='doc1') + self.sync(self.db1, self.db2) + self.db1_copy = self.copy_database(self.db1) + self.db1.create_doc_from_json(tests.simple_doc, doc_id='doc2') + self.sync(self.db1, self.db2) + self.assertRaises( + u1db_errors.InvalidGeneration, self.sync, self.db1_copy, self.db2) + + def test_sync_detects_rollback_in_target(self): + self.db1 = self.create_database('test1', 'source') + self.db2 = self.create_database('test2', 'target') + self.db1.create_doc_from_json(tests.simple_doc, doc_id="divergent") + self.sync(self.db1, self.db2) + self.db2_copy = self.copy_database(self.db2) + self.db2.create_doc_from_json(tests.simple_doc, doc_id='doc2') + self.sync(self.db1, self.db2) + self.assertRaises( + u1db_errors.InvalidGeneration, self.sync, self.db1, self.db2_copy) + + def test_sync_detects_diverged_source(self): + self.db1 = self.create_database('test1', 'source') + self.db2 = self.create_database('test2', 'target') + self.db3 = self.copy_database(self.db1) + self.db1.create_doc_from_json(tests.simple_doc, doc_id="divergent") + self.db3.create_doc_from_json(tests.simple_doc, doc_id="divergent") + self.sync(self.db1, self.db2) + self.assertRaises( + u1db_errors.InvalidTransactionId, self.sync, self.db3, self.db2) + + def test_sync_detects_diverged_target(self): + self.db1 = self.create_database('test1', 'source') + self.db2 = self.create_database('test2', 'target') + self.db3 = self.copy_database(self.db2) + self.db3.create_doc_from_json(tests.nested_doc, doc_id="divergent") + self.db1.create_doc_from_json(tests.simple_doc, doc_id="divergent") + self.sync(self.db1, self.db2) + self.assertRaises( + u1db_errors.InvalidTransactionId, self.sync, self.db1, self.db3) + + def test_sync_detects_rollback_and_divergence_in_source(self): + self.db1 = self.create_database('test1', 'source') + self.db2 = self.create_database('test2', 'target') + self.db1.create_doc_from_json(tests.simple_doc, doc_id='doc1') + self.sync(self.db1, self.db2) + self.db1_copy = self.copy_database(self.db1) + self.db1.create_doc_from_json(tests.simple_doc, doc_id='doc2') + self.db1.create_doc_from_json(tests.simple_doc, doc_id='doc3') + self.sync(self.db1, self.db2) + self.db1_copy.create_doc_from_json(tests.simple_doc, doc_id='doc2') + self.db1_copy.create_doc_from_json(tests.simple_doc, doc_id='doc3') + self.assertRaises( + u1db_errors.InvalidTransactionId, self.sync, + self.db1_copy, self.db2) + + def test_sync_detects_rollback_and_divergence_in_target(self): + self.db1 = self.create_database('test1', 'source') + self.db2 = self.create_database('test2', 'target') + self.db1.create_doc_from_json(tests.simple_doc, doc_id="divergent") + self.sync(self.db1, self.db2) + self.db2_copy = self.copy_database(self.db2) + self.db2.create_doc_from_json(tests.simple_doc, doc_id='doc2') + self.db2.create_doc_from_json(tests.simple_doc, doc_id='doc3') + self.sync(self.db1, self.db2) + self.db2_copy.create_doc_from_json(tests.simple_doc, doc_id='doc2') + self.db2_copy.create_doc_from_json(tests.simple_doc, doc_id='doc3') + self.assertRaises( + u1db_errors.InvalidTransactionId, self.sync, + self.db1, self.db2_copy) + + def test_optional_sync_preserve_json(self): + self.db1 = self.create_database('test1', 'source') + self.db2 = self.create_database('test2', 'target') + cont1 = '{"a": 2}' + cont2 = '{"b": 3}' + self.db1.create_doc_from_json(cont1, doc_id="1") + self.db2.create_doc_from_json(cont2, doc_id="2") + self.sync(self.db1, self.db2) + self.assertEqual(cont1, self.db2.get_doc("1").get_json()) + self.assertEqual(cont2, self.db1.get_doc("2").get_json()) |