53 lines
2.0 KiB
Python
53 lines
2.0 KiB
Python
from __future__ import print_function, unicode_literals
|
|
import os
|
|
from twisted.trial import unittest
|
|
from ..server.database import get_db, TARGET_VERSION, dump_db
|
|
|
|
class DB(unittest.TestCase):
|
|
def test_create_default(self):
|
|
db_url = ":memory:"
|
|
db = get_db(db_url)
|
|
rows = db.execute("SELECT * FROM version").fetchall()
|
|
self.assertEqual(len(rows), 1)
|
|
self.assertEqual(rows[0]["version"], TARGET_VERSION)
|
|
|
|
def test_upgrade(self):
|
|
basedir = self.mktemp()
|
|
os.mkdir(basedir)
|
|
fn = os.path.join(basedir, "upgrade.db")
|
|
self.assertNotEqual(TARGET_VERSION, 2)
|
|
|
|
# create an old-version DB in a file
|
|
db = get_db(fn, 2)
|
|
rows = db.execute("SELECT * FROM version").fetchall()
|
|
self.assertEqual(len(rows), 1)
|
|
self.assertEqual(rows[0]["version"], 2)
|
|
del db
|
|
|
|
# then upgrade the file to the latest version
|
|
dbA = get_db(fn, TARGET_VERSION)
|
|
rows = dbA.execute("SELECT * FROM version").fetchall()
|
|
self.assertEqual(len(rows), 1)
|
|
self.assertEqual(rows[0]["version"], TARGET_VERSION)
|
|
dbA_text = dump_db(dbA)
|
|
del dbA
|
|
|
|
# make sure the upgrades got committed to disk
|
|
dbB = get_db(fn, TARGET_VERSION)
|
|
dbB_text = dump_db(dbB)
|
|
del dbB
|
|
self.assertEqual(dbA_text, dbB_text)
|
|
|
|
# The upgraded schema should be equivalent to that of a new DB.
|
|
# However a text dump will differ because ALTER TABLE always appends
|
|
# the new column to the end of a table, whereas our schema puts it
|
|
# somewhere in the middle (wherever it fits naturally). Also ALTER
|
|
# TABLE doesn't include comments.
|
|
if False:
|
|
latest_db = get_db(":memory:", TARGET_VERSION)
|
|
latest_text = dump_db(latest_db)
|
|
with open("up.sql","w") as f: f.write(dbA_text)
|
|
with open("new.sql","w") as f: f.write(latest_text)
|
|
# check with "diff -u _trial_temp/up.sql _trial_temp/new.sql"
|
|
self.assertEqual(dbA_text, latest_text)
|