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test_run_full_migrations() all working properly!

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This commit is contained in:
Christopher Allan Webber 2011-07-10 21:14:38 -05:00
parent 0143c5a1e4
commit ae6b0a4e6e
1 changed files with 81 additions and 26 deletions
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107
mediagoblin/tests/test_migrations.py
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@ -17,8 +17,9 @@
from pymongo import Connection
from mediagoblin.tests.tools import install_fixtures_simple
from mediagoblin.db.util import RegisterMigration, MigrationManager
from mediagoblin.tests.tools import (
install_fixtures_simple, assert_db_meets_expected)
from mediagoblin.db.util import RegisterMigration, MigrationManager, ObjectId
# This one will get filled with local migrations
TEST_MIGRATION_REGISTRY = {}
@ -38,11 +39,12 @@ def creature_add_magical_powers(database):
Add lists of magical powers.
This defaults to [], an empty list. Since we haven't declared any
magical powers, all existing monsters should
magical powers, all existing monsters should
"""
database['creatures'].update(
{'magical_powers': {'$exists': False}},
{'$set': {'magical_powers': []}})
{'$set': {'magical_powers': []}},
multi=True)
@RegisterMigration(2, TEST_MIGRATION_REGISTRY)
@ -52,9 +54,17 @@ def creature_rename_num_legs_to_num_limbs(database):
just how many legs. We don't care about the ambiguous distinction
between arms/legs currently.
"""
database['creatures'].update(
{'num_legs': {'$exists': True}},
{'$rename': {'num_legs': 'num_limbs'}})
# $rename not available till 1.7.2+, Debian Stable only includes
# 1.4.4... we should do renames manually for now :(
collection = database['creatures']
target = collection.find(
{'num_legs': {'$exists': True}})
for document in target:
# A lame manual renaming.
document['num_limbs'] = document.pop('num_legs')
collection.save(document)
@RegisterMigration(3, TEST_MIGRATION_REGISTRY)
@ -65,7 +75,8 @@ def creature_remove_is_demon(database):
"""
database['creatures'].update(
{'is_demon': {'$exists': True}},
{'$unset': {'is_demon': 1}})
{'$unset': {'is_demon': 1}},
multi=True)
@RegisterMigration(4, TEST_MIGRATION_REGISTRY)
@ -85,7 +96,8 @@ def level_exits_dict_to_list(database):
{'name': 'trapdoor',
'exits_to': 'dungeon_level_id'}]
"""
target = database['levels'].find(
collection = database['levels']
target = collection.find(
{'exits': {'$type': 3}})
for level in target:
@ -96,19 +108,26 @@ def level_exits_dict_to_list(database):
'exits_to': exits_to})
level['exits'] = new_exits
database['levels'].save(level)
collection.save(level)
CENTIPEDE_OBJECTID = ObjectId()
WOLF_OBJECTID = ObjectId()
WIZARDSNAKE_OBJECTID = ObjectId()
UNMIGRATED_DBDATA = {
'creatures': [
{'name': 'centipede',
{'_id': CENTIPEDE_OBJECTID,
'name': 'centipede',
'num_legs': 100,
'is_demon': False},
{'name': 'wolf',
{'_id': WOLF_OBJECTID,
'name': 'wolf',
'num_legs': 4,
'is_demon': False},
# don't ask me what a wizardsnake is.
{'name': 'wizardsnake',
{'_id': WIZARDSNAKE_OBJECTID,
'name': 'wizardsnake',
'num_legs': 0,
'is_demon': True}],
'levels': [
@ -127,18 +146,21 @@ UNMIGRATED_DBDATA = {
'description': "New York's friendly Central Park.",
'exits': {
'portal': 'necroplex'}}]}
EXPECTED_POST_MIGRATION_UNMIGRATED_DBDATA = {
'creatures': [
{'name': 'centipede',
{'_id': CENTIPEDE_OBJECTID,
'name': 'centipede',
'num_limbs': 100,
'magical_powers': []},
{'name': 'wolf',
{'_id': WOLF_OBJECTID,
'name': 'wolf',
'num_limbs': 4,
# kept around namely to check that it *isn't* removed!
'magical_powers': []},
{'name': 'wizardsnake',
{'_id': WIZARDSNAKE_OBJECTID,
'name': 'wizardsnake',
'num_limbs': 0,
'magical_powers': []}],
'levels': [
@ -166,16 +188,19 @@ EXPECTED_POST_MIGRATION_UNMIGRATED_DBDATA = {
SEMI_MIGRATED_DBDATA = {
'creatures': [
{'name': 'centipede',
{'_id': CENTIPEDE_OBJECTID,
'name': 'centipede',
'num_limbs': 100,
'magical_powers': []},
{'name': 'wolf',
{'_id': WOLF_OBJECTID,
'name': 'wolf',
'num_limbs': 4,
# kept around namely to check that it *isn't* removed!
'is_demon': False,
'magical_powers': [
'ice_breath', 'death_stare']},
{'name': 'wizardsnake',
{'_id': WIZARDSNAKE_OBJECTID,
'name': 'wizardsnake',
'num_limbs': 0,
'magical_powers': [
'death_rattle', 'sneaky_stare',
@ -201,16 +226,19 @@ SEMI_MIGRATED_DBDATA = {
EXPECTED_POST_MIGRATION_SEMI_MIGRATED_DBDATA = {
'creatures': [
{'name': 'centipede',
{'_id': CENTIPEDE_OBJECTID,
'name': 'centipede',
'num_limbs': 100,
'magical_powers': []},
{'name': 'wolf',
{'_id': WOLF_OBJECTID,
'name': 'wolf',
'num_limbs': 4,
# kept around namely to check that it *isn't* removed!
'is_demon': False,
'magical_powers': [
'ice_breath', 'death_stare']},
{'name': 'wizardsnake',
{'_id': WIZARDSNAKE_OBJECTID,
'name': 'wizardsnake',
'num_limbs': 0,
'magical_powers': [
'death_rattle', 'sneaky_stare',
@ -235,7 +263,6 @@ EXPECTED_POST_MIGRATION_SEMI_MIGRATED_DBDATA = {
'exits': [
{'name': 'portal',
'exits_to': 'necroplex'}]}]}
class TestMigrations(object):
@ -248,10 +275,14 @@ class TestMigrations(object):
self.db, TEST_MIGRATION_REGISTRY)
self.empty_migration_manager = MigrationManager(
self.db, TEST_EMPTY_MIGRATION_REGISTRY)
self.run_migrations = []
def tearDown(self):
self.connection.drop_database(MIGRATION_DB_NAME)
def _record_migration(self, migration_number, migration_func):
self.run_migrations.append((migration_number, migration_func))
def test_migrations_registered_and_sorted(self):
"""
Make sure that migrations get registered and are sorted right
@ -274,14 +305,38 @@ class TestMigrations(object):
Make sure that running the full migration suite from 0 updates
everything
"""
pass
self.migration_manager.set_current_migration(0)
assert self.migration_manager.database_current_migration() == 0
install_fixtures_simple(self.db, UNMIGRATED_DBDATA)
self.migration_manager.migrate_new(post_callback=self._record_migration)
assert self.run_migrations == [
(1, creature_add_magical_powers),
(2, creature_rename_num_legs_to_num_limbs),
(3, creature_remove_is_demon),
(4, level_exits_dict_to_list)]
assert_db_meets_expected(
self.db, EXPECTED_POST_MIGRATION_UNMIGRATED_DBDATA)
# Make sure the migration is recorded correctly
assert self.migration_manager.database_current_migration() == 4
# run twice! It should do nothing the second time.
# ------------------------------------------------
self.run_migrations = []
self.migration_manager.migrate_new(post_callback=self._record_migration)
assert self.run_migrations == []
assert_db_meets_expected(
self.db, EXPECTED_POST_MIGRATION_UNMIGRATED_DBDATA)
assert self.migration_manager.database_current_migration() == 4
def test_run_partial_migrations(self):
"""
Make sure that running full migration suite from 3 only runs
last migration
"""
pass
def test_migrations_recorded_as_latest(self):