test_run_full_migrations() all working properly!
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@ -17,8 +17,9 @@
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from pymongo import Connection
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from mediagoblin.tests.tools import install_fixtures_simple
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from mediagoblin.db.util import RegisterMigration, MigrationManager
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from mediagoblin.tests.tools import (
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install_fixtures_simple, assert_db_meets_expected)
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from mediagoblin.db.util import RegisterMigration, MigrationManager, ObjectId
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# This one will get filled with local migrations
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TEST_MIGRATION_REGISTRY = {}
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@ -38,11 +39,12 @@ def creature_add_magical_powers(database):
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Add lists of magical powers.
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This defaults to [], an empty list. Since we haven't declared any
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magical powers, all existing monsters should
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magical powers, all existing monsters should
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"""
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database['creatures'].update(
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{'magical_powers': {'$exists': False}},
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{'$set': {'magical_powers': []}})
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{'$set': {'magical_powers': []}},
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multi=True)
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@RegisterMigration(2, TEST_MIGRATION_REGISTRY)
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@ -52,9 +54,17 @@ def creature_rename_num_legs_to_num_limbs(database):
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just how many legs. We don't care about the ambiguous distinction
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between arms/legs currently.
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"""
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database['creatures'].update(
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{'num_legs': {'$exists': True}},
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{'$rename': {'num_legs': 'num_limbs'}})
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# $rename not available till 1.7.2+, Debian Stable only includes
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# 1.4.4... we should do renames manually for now :(
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collection = database['creatures']
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target = collection.find(
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{'num_legs': {'$exists': True}})
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for document in target:
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# A lame manual renaming.
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document['num_limbs'] = document.pop('num_legs')
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collection.save(document)
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@RegisterMigration(3, TEST_MIGRATION_REGISTRY)
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@ -65,7 +75,8 @@ def creature_remove_is_demon(database):
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"""
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database['creatures'].update(
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{'is_demon': {'$exists': True}},
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{'$unset': {'is_demon': 1}})
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{'$unset': {'is_demon': 1}},
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multi=True)
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@RegisterMigration(4, TEST_MIGRATION_REGISTRY)
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@ -85,7 +96,8 @@ def level_exits_dict_to_list(database):
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{'name': 'trapdoor',
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'exits_to': 'dungeon_level_id'}]
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"""
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target = database['levels'].find(
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collection = database['levels']
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target = collection.find(
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{'exits': {'$type': 3}})
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for level in target:
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@ -96,19 +108,26 @@ def level_exits_dict_to_list(database):
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'exits_to': exits_to})
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level['exits'] = new_exits
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database['levels'].save(level)
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collection.save(level)
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CENTIPEDE_OBJECTID = ObjectId()
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WOLF_OBJECTID = ObjectId()
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WIZARDSNAKE_OBJECTID = ObjectId()
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UNMIGRATED_DBDATA = {
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'creatures': [
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{'name': 'centipede',
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{'_id': CENTIPEDE_OBJECTID,
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'name': 'centipede',
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'num_legs': 100,
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'is_demon': False},
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{'name': 'wolf',
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{'_id': WOLF_OBJECTID,
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'name': 'wolf',
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'num_legs': 4,
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'is_demon': False},
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# don't ask me what a wizardsnake is.
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{'name': 'wizardsnake',
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{'_id': WIZARDSNAKE_OBJECTID,
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'name': 'wizardsnake',
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'num_legs': 0,
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'is_demon': True}],
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'levels': [
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@ -127,18 +146,21 @@ UNMIGRATED_DBDATA = {
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'description': "New York's friendly Central Park.",
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'exits': {
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'portal': 'necroplex'}}]}
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EXPECTED_POST_MIGRATION_UNMIGRATED_DBDATA = {
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'creatures': [
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{'name': 'centipede',
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{'_id': CENTIPEDE_OBJECTID,
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'name': 'centipede',
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'num_limbs': 100,
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'magical_powers': []},
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{'name': 'wolf',
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{'_id': WOLF_OBJECTID,
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'name': 'wolf',
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'num_limbs': 4,
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# kept around namely to check that it *isn't* removed!
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'magical_powers': []},
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{'name': 'wizardsnake',
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{'_id': WIZARDSNAKE_OBJECTID,
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'name': 'wizardsnake',
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'num_limbs': 0,
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'magical_powers': []}],
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'levels': [
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@ -166,16 +188,19 @@ EXPECTED_POST_MIGRATION_UNMIGRATED_DBDATA = {
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SEMI_MIGRATED_DBDATA = {
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'creatures': [
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{'name': 'centipede',
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{'_id': CENTIPEDE_OBJECTID,
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'name': 'centipede',
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'num_limbs': 100,
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'magical_powers': []},
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{'name': 'wolf',
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{'_id': WOLF_OBJECTID,
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'name': 'wolf',
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'num_limbs': 4,
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# kept around namely to check that it *isn't* removed!
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'is_demon': False,
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'magical_powers': [
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'ice_breath', 'death_stare']},
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{'name': 'wizardsnake',
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{'_id': WIZARDSNAKE_OBJECTID,
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'name': 'wizardsnake',
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'num_limbs': 0,
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'magical_powers': [
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'death_rattle', 'sneaky_stare',
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@ -201,16 +226,19 @@ SEMI_MIGRATED_DBDATA = {
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EXPECTED_POST_MIGRATION_SEMI_MIGRATED_DBDATA = {
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'creatures': [
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{'name': 'centipede',
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{'_id': CENTIPEDE_OBJECTID,
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'name': 'centipede',
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'num_limbs': 100,
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'magical_powers': []},
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{'name': 'wolf',
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{'_id': WOLF_OBJECTID,
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'name': 'wolf',
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'num_limbs': 4,
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# kept around namely to check that it *isn't* removed!
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'is_demon': False,
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'magical_powers': [
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'ice_breath', 'death_stare']},
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{'name': 'wizardsnake',
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{'_id': WIZARDSNAKE_OBJECTID,
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'name': 'wizardsnake',
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'num_limbs': 0,
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'magical_powers': [
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'death_rattle', 'sneaky_stare',
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@ -235,7 +263,6 @@ EXPECTED_POST_MIGRATION_SEMI_MIGRATED_DBDATA = {
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'exits': [
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{'name': 'portal',
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'exits_to': 'necroplex'}]}]}
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class TestMigrations(object):
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@ -248,10 +275,14 @@ class TestMigrations(object):
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self.db, TEST_MIGRATION_REGISTRY)
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self.empty_migration_manager = MigrationManager(
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self.db, TEST_EMPTY_MIGRATION_REGISTRY)
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self.run_migrations = []
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def tearDown(self):
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self.connection.drop_database(MIGRATION_DB_NAME)
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def _record_migration(self, migration_number, migration_func):
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self.run_migrations.append((migration_number, migration_func))
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def test_migrations_registered_and_sorted(self):
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"""
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Make sure that migrations get registered and are sorted right
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@ -274,14 +305,38 @@ class TestMigrations(object):
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Make sure that running the full migration suite from 0 updates
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everything
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"""
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pass
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self.migration_manager.set_current_migration(0)
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assert self.migration_manager.database_current_migration() == 0
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install_fixtures_simple(self.db, UNMIGRATED_DBDATA)
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self.migration_manager.migrate_new(post_callback=self._record_migration)
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assert self.run_migrations == [
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(1, creature_add_magical_powers),
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(2, creature_rename_num_legs_to_num_limbs),
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(3, creature_remove_is_demon),
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(4, level_exits_dict_to_list)]
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assert_db_meets_expected(
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self.db, EXPECTED_POST_MIGRATION_UNMIGRATED_DBDATA)
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# Make sure the migration is recorded correctly
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assert self.migration_manager.database_current_migration() == 4
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# run twice! It should do nothing the second time.
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# ------------------------------------------------
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self.run_migrations = []
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self.migration_manager.migrate_new(post_callback=self._record_migration)
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assert self.run_migrations == []
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assert_db_meets_expected(
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self.db, EXPECTED_POST_MIGRATION_UNMIGRATED_DBDATA)
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assert self.migration_manager.database_current_migration() == 4
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def test_run_partial_migrations(self):
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"""
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Make sure that running full migration suite from 3 only runs
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last migration
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"""
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pass
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def test_migrations_recorded_as_latest(self):
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