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-rw-r--r--tests/couch/test_sync_target.py343
1 files changed, 343 insertions, 0 deletions
diff --git a/tests/couch/test_sync_target.py b/tests/couch/test_sync_target.py
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+++ b/tests/couch/test_sync_target.py
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+import json
+
+from leap.soledad.common.l2db import SyncTarget
+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 make_local_db_and_target
+from test_soledad.u1db_tests import DatabaseBaseTests
+
+from .common import simple_doc
+from .common import nested_doc
+from .common import COUCH_SCENARIOS
+
+
+target_scenarios = [
+ ('local', {'create_db_and_target': make_local_db_and_target}), ]
+
+
+class CouchBackendSyncTargetTests(
+ TestWithScenarios,
+ DatabaseBaseTests,
+ CouchDBTestCase):
+
+ # TODO: implement _set_trace_hook(_shallow) in CouchSyncTarget so
+ # skipped tests can be succesfully executed.
+
+ # whitebox true means self.db is the actual local db object
+ # against which the sync is performed
+ whitebox = True
+
+ scenarios = (tests.multiply_scenarios(COUCH_SCENARIOS, target_scenarios))
+
+ def set_trace_hook(self, callback, shallow=False):
+ setter = (self.st._set_trace_hook if not shallow else
+ self.st._set_trace_hook_shallow)
+ try:
+ setter(callback)
+ except NotImplementedError:
+ self.skipTest("%s does not implement _set_trace_hook"
+ % (self.st.__class__.__name__,))
+
+ def setUp(self):
+ CouchDBTestCase.setUp(self)
+ # other stuff
+ self.db, self.st = self.create_db_and_target(self)
+ self.other_changes = []
+
+ def tearDown(self):
+ self.db.close()
+ CouchDBTestCase.tearDown(self)
+
+ def receive_doc(self, doc, gen, trans_id):
+ self.other_changes.append(
+ (doc.doc_id, doc.rev, doc.get_json(), gen, trans_id))
+
+ def test_sync_exchange_returns_many_new_docs(self):
+ # This test was replicated to allow dictionaries to be compared after
+ # JSON expansion (because one dictionary may have many different
+ # serialized representations).
+ doc = self.db.create_doc_from_json(simple_doc)
+ doc2 = self.db.create_doc_from_json(nested_doc)
+ self.assertTransactionLog([doc.doc_id, doc2.doc_id], self.db)
+ new_gen, _ = self.st.sync_exchange(
+ [], 'other-replica', last_known_generation=0,
+ last_known_trans_id=None, return_doc_cb=self.receive_doc)
+ self.assertTransactionLog([doc.doc_id, doc2.doc_id], self.db)
+ self.assertEqual(2, new_gen)
+ self.assertEqual(
+ [(doc.doc_id, doc.rev, json.loads(simple_doc), 1),
+ (doc2.doc_id, doc2.rev, json.loads(nested_doc), 2)],
+ [c[:-3] + (json.loads(c[-3]), c[-2]) for c in self.other_changes])
+ if self.whitebox:
+ self.assertEqual(
+ self.db._last_exchange_log['return'],
+ {'last_gen': 2, 'docs':
+ [(doc.doc_id, doc.rev), (doc2.doc_id, doc2.rev)]})
+
+ def test_get_sync_target(self):
+ self.assertIsNot(None, self.st)
+
+ def test_get_sync_info(self):
+ self.assertEqual(
+ ('test', 0, '', 0, ''), self.st.get_sync_info('other'))
+
+ def test_create_doc_updates_sync_info(self):
+ self.assertEqual(
+ ('test', 0, '', 0, ''), self.st.get_sync_info('other'))
+ self.db.create_doc_from_json(simple_doc)
+ self.assertEqual(1, self.st.get_sync_info('other')[1])
+
+ def test_record_sync_info(self):
+ self.st.record_sync_info('replica', 10, 'T-transid')
+ self.assertEqual(
+ ('test', 0, '', 10, 'T-transid'), self.st.get_sync_info('replica'))
+
+ def test_sync_exchange(self):
+ docs_by_gen = [
+ (self.make_document('doc-id', 'replica:1', simple_doc), 10,
+ 'T-sid')]
+ new_gen, trans_id = self.st.sync_exchange(
+ docs_by_gen, 'replica', last_known_generation=0,
+ last_known_trans_id=None, return_doc_cb=self.receive_doc)
+ self.assertGetDoc(self.db, 'doc-id', 'replica:1', simple_doc, False)
+ self.assertTransactionLog(['doc-id'], self.db)
+ last_trans_id = self.getLastTransId(self.db)
+ self.assertEqual(([], 1, last_trans_id),
+ (self.other_changes, new_gen, last_trans_id))
+ self.assertEqual(10, self.st.get_sync_info('replica')[3])
+
+ def test_sync_exchange_deleted(self):
+ doc = self.db.create_doc_from_json('{}')
+ edit_rev = 'replica:1|' + doc.rev
+ docs_by_gen = [
+ (self.make_document(doc.doc_id, edit_rev, None), 10, 'T-sid')]
+ new_gen, trans_id = self.st.sync_exchange(
+ docs_by_gen, 'replica', last_known_generation=0,
+ last_known_trans_id=None, return_doc_cb=self.receive_doc)
+ self.assertGetDocIncludeDeleted(
+ self.db, doc.doc_id, edit_rev, None, False)
+ self.assertTransactionLog([doc.doc_id, doc.doc_id], self.db)
+ last_trans_id = self.getLastTransId(self.db)
+ self.assertEqual(([], 2, last_trans_id),
+ (self.other_changes, new_gen, trans_id))
+ self.assertEqual(10, self.st.get_sync_info('replica')[3])
+
+ def test_sync_exchange_push_many(self):
+ docs_by_gen = [
+ (self.make_document('doc-id', 'replica:1', simple_doc), 10, 'T-1'),
+ (self.make_document('doc-id2', 'replica:1', nested_doc), 11,
+ 'T-2')]
+ new_gen, trans_id = self.st.sync_exchange(
+ docs_by_gen, 'replica', last_known_generation=0,
+ last_known_trans_id=None, return_doc_cb=self.receive_doc)
+ self.assertGetDoc(self.db, 'doc-id', 'replica:1', simple_doc, False)
+ self.assertGetDoc(self.db, 'doc-id2', 'replica:1', nested_doc, False)
+ self.assertTransactionLog(['doc-id', 'doc-id2'], self.db)
+ last_trans_id = self.getLastTransId(self.db)
+ self.assertEqual(([], 2, last_trans_id),
+ (self.other_changes, new_gen, trans_id))
+ self.assertEqual(11, self.st.get_sync_info('replica')[3])
+
+ def test_sync_exchange_refuses_conflicts(self):
+ doc = self.db.create_doc_from_json(simple_doc)
+ self.assertTransactionLog([doc.doc_id], self.db)
+ new_doc = '{"key": "altval"}'
+ docs_by_gen = [
+ (self.make_document(doc.doc_id, 'replica:1', new_doc), 10,
+ 'T-sid')]
+ new_gen, _ = self.st.sync_exchange(
+ docs_by_gen, 'replica', last_known_generation=0,
+ last_known_trans_id=None, return_doc_cb=self.receive_doc)
+ self.assertTransactionLog([doc.doc_id], self.db)
+ self.assertEqual(
+ (doc.doc_id, doc.rev, simple_doc, 1), self.other_changes[0][:-1])
+ self.assertEqual(1, new_gen)
+ if self.whitebox:
+ self.assertEqual(self.db._last_exchange_log['return'],
+ {'last_gen': 1, 'docs': [(doc.doc_id, doc.rev)]})
+
+ def test_sync_exchange_ignores_convergence(self):
+ doc = self.db.create_doc_from_json(simple_doc)
+ self.assertTransactionLog([doc.doc_id], self.db)
+ gen, txid = self.db._get_generation_info()
+ docs_by_gen = [
+ (self.make_document(doc.doc_id, doc.rev, simple_doc), 10, 'T-sid')]
+ new_gen, _ = self.st.sync_exchange(
+ docs_by_gen, 'replica', last_known_generation=gen,
+ last_known_trans_id=txid, return_doc_cb=self.receive_doc)
+ self.assertTransactionLog([doc.doc_id], self.db)
+ self.assertEqual(([], 1), (self.other_changes, new_gen))
+
+ def test_sync_exchange_returns_new_docs(self):
+ doc = self.db.create_doc_from_json(simple_doc)
+ self.assertTransactionLog([doc.doc_id], self.db)
+ new_gen, _ = self.st.sync_exchange(
+ [], 'other-replica', last_known_generation=0,
+ last_known_trans_id=None, return_doc_cb=self.receive_doc)
+ self.assertTransactionLog([doc.doc_id], self.db)
+ self.assertEqual(
+ (doc.doc_id, doc.rev, simple_doc, 1), self.other_changes[0][:-1])
+ self.assertEqual(1, new_gen)
+ if self.whitebox:
+ self.assertEqual(self.db._last_exchange_log['return'],
+ {'last_gen': 1, 'docs': [(doc.doc_id, doc.rev)]})
+
+ def test_sync_exchange_returns_deleted_docs(self):
+ doc = self.db.create_doc_from_json(simple_doc)
+ self.db.delete_doc(doc)
+ self.assertTransactionLog([doc.doc_id, doc.doc_id], self.db)
+ new_gen, _ = self.st.sync_exchange(
+ [], 'other-replica', last_known_generation=0,
+ last_known_trans_id=None, return_doc_cb=self.receive_doc)
+ self.assertTransactionLog([doc.doc_id, doc.doc_id], self.db)
+ self.assertEqual(
+ (doc.doc_id, doc.rev, None, 2), self.other_changes[0][:-1])
+ self.assertEqual(2, new_gen)
+ if self.whitebox:
+ self.assertEqual(self.db._last_exchange_log['return'],
+ {'last_gen': 2, 'docs': [(doc.doc_id, doc.rev)]})
+
+ def test_sync_exchange_getting_newer_docs(self):
+ doc = self.db.create_doc_from_json(simple_doc)
+ self.assertTransactionLog([doc.doc_id], self.db)
+ new_doc = '{"key": "altval"}'
+ docs_by_gen = [
+ (self.make_document(doc.doc_id, 'test:1|z:2', new_doc), 10,
+ 'T-sid')]
+ new_gen, _ = self.st.sync_exchange(
+ docs_by_gen, 'other-replica', last_known_generation=0,
+ last_known_trans_id=None, return_doc_cb=self.receive_doc)
+ self.assertTransactionLog([doc.doc_id, doc.doc_id], self.db)
+ self.assertEqual(([], 2), (self.other_changes, new_gen))
+
+ def test_sync_exchange_with_concurrent_updates_of_synced_doc(self):
+ expected = []
+
+ def before_whatschanged_cb(state):
+ if state != 'before whats_changed':
+ return
+ cont = '{"key": "cuncurrent"}'
+ conc_rev = self.db.put_doc(
+ self.make_document(doc.doc_id, 'test:1|z:2', cont))
+ expected.append((doc.doc_id, conc_rev, cont, 3))
+
+ self.set_trace_hook(before_whatschanged_cb)
+ doc = self.db.create_doc_from_json(simple_doc)
+ self.assertTransactionLog([doc.doc_id], self.db)
+ new_doc = '{"key": "altval"}'
+ docs_by_gen = [
+ (self.make_document(doc.doc_id, 'test:1|z:2', new_doc), 10,
+ 'T-sid')]
+ new_gen, _ = self.st.sync_exchange(
+ docs_by_gen, 'other-replica', last_known_generation=0,
+ last_known_trans_id=None, return_doc_cb=self.receive_doc)
+ self.assertEqual(expected, [c[:-1] for c in self.other_changes])
+ self.assertEqual(3, new_gen)
+
+ def test_sync_exchange_with_concurrent_updates(self):
+
+ def after_whatschanged_cb(state):
+ if state != 'after whats_changed':
+ return
+ self.db.create_doc_from_json('{"new": "doc"}')
+
+ self.set_trace_hook(after_whatschanged_cb)
+ doc = self.db.create_doc_from_json(simple_doc)
+ self.assertTransactionLog([doc.doc_id], self.db)
+ new_doc = '{"key": "altval"}'
+ docs_by_gen = [
+ (self.make_document(doc.doc_id, 'test:1|z:2', new_doc), 10,
+ 'T-sid')]
+ new_gen, _ = self.st.sync_exchange(
+ docs_by_gen, 'other-replica', last_known_generation=0,
+ last_known_trans_id=None, return_doc_cb=self.receive_doc)
+ self.assertEqual(([], 2), (self.other_changes, new_gen))
+
+ def test_sync_exchange_converged_handling(self):
+ doc = self.db.create_doc_from_json(simple_doc)
+ docs_by_gen = [
+ (self.make_document('new', 'other:1', '{}'), 4, 'T-foo'),
+ (self.make_document(doc.doc_id, doc.rev, doc.get_json()), 5,
+ 'T-bar')]
+ new_gen, _ = self.st.sync_exchange(
+ docs_by_gen, 'other-replica', last_known_generation=0,
+ last_known_trans_id=None, return_doc_cb=self.receive_doc)
+ self.assertEqual(([], 2), (self.other_changes, new_gen))
+
+ def test_sync_exchange_detect_incomplete_exchange(self):
+ def before_get_docs_explode(state):
+ if state != 'before get_docs':
+ return
+ raise u1db_errors.U1DBError("fail")
+ self.set_trace_hook(before_get_docs_explode)
+ # suppress traceback printing in the wsgiref server
+ # self.patch(simple_server.ServerHandler,
+ # 'log_exception', lambda h, exc_info: None)
+ doc = self.db.create_doc_from_json(simple_doc)
+ self.assertTransactionLog([doc.doc_id], self.db)
+ self.assertRaises(
+ (u1db_errors.U1DBError, u1db_errors.BrokenSyncStream),
+ self.st.sync_exchange, [], 'other-replica',
+ last_known_generation=0, last_known_trans_id=None,
+ return_doc_cb=self.receive_doc)
+
+ def test_sync_exchange_doc_ids(self):
+ sync_exchange_doc_ids = getattr(self.st, 'sync_exchange_doc_ids', None)
+ if sync_exchange_doc_ids is None:
+ self.skipTest("sync_exchange_doc_ids not implemented")
+ db2 = self.create_database('test2')
+ doc = db2.create_doc_from_json(simple_doc)
+ new_gen, trans_id = sync_exchange_doc_ids(
+ db2, [(doc.doc_id, 10, 'T-sid')], 0, None,
+ return_doc_cb=self.receive_doc)
+ self.assertGetDoc(self.db, doc.doc_id, doc.rev, simple_doc, False)
+ self.assertTransactionLog([doc.doc_id], self.db)
+ last_trans_id = self.getLastTransId(self.db)
+ self.assertEqual(([], 1, last_trans_id),
+ (self.other_changes, new_gen, trans_id))
+ self.assertEqual(10, self.st.get_sync_info(db2._replica_uid)[3])
+
+ def test__set_trace_hook(self):
+ called = []
+
+ def cb(state):
+ called.append(state)
+
+ self.set_trace_hook(cb)
+ self.st.sync_exchange([], 'replica', 0, None, self.receive_doc)
+ self.st.record_sync_info('replica', 0, 'T-sid')
+ self.assertEqual(['before whats_changed',
+ 'after whats_changed',
+ 'before get_docs',
+ 'record_sync_info',
+ ],
+ called)
+
+ def test__set_trace_hook_shallow(self):
+ st_trace_shallow = self.st._set_trace_hook_shallow
+ target_st_trace_shallow = SyncTarget._set_trace_hook_shallow
+ same_meth = st_trace_shallow == self.st._set_trace_hook
+ same_fun = st_trace_shallow.im_func == target_st_trace_shallow.im_func
+ if (same_meth or same_fun):
+ # shallow same as full
+ expected = ['before whats_changed',
+ 'after whats_changed',
+ 'before get_docs',
+ 'record_sync_info',
+ ]
+ else:
+ expected = ['sync_exchange', 'record_sync_info']
+
+ called = []
+
+ def cb(state):
+ called.append(state)
+
+ self.set_trace_hook(cb, shallow=True)
+ self.st.sync_exchange([], 'replica', 0, None, self.receive_doc)
+ self.st.record_sync_info('replica', 0, 'T-sid')
+ self.assertEqual(expected, called)