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#!/usr/bin/env python3
'''
t1_dump.py - this file is part of S3QL.
Copyright © 2008 Nikolaus Rath <Nikolaus@rath.org>
This work can be distributed under the terms of the GNU GPLv3.
'''
if __name__ == '__main__':
import pytest
import sys
sys.exit(pytest.main([__file__] + sys.argv[1:]))
import unittest
from s3ql import deltadump
import tempfile
from s3ql.database import Connection
import random
class DumpTests(unittest.TestCase):
def setUp(self):
self.tmpfh1 = tempfile.NamedTemporaryFile()
self.tmpfh2 = tempfile.NamedTemporaryFile()
self.src = Connection(self.tmpfh1.name)
self.dst = Connection(self.tmpfh2.name)
self.fh = tempfile.TemporaryFile()
# Disable exclusive locking for all tests
self.src.execute('PRAGMA locking_mode = NORMAL')
self.dst.execute('PRAGMA locking_mode = NORMAL')
self.create_table(self.src)
self.create_table(self.dst)
def tearDown(self):
self.src.close()
self.dst.close()
self.tmpfh1.close()
self.tmpfh2.close()
self.fh.close()
def test_transactions(self):
self.fill_vals(self.src)
dumpspec = (('id', deltadump.INTEGER, 0),)
deltadump.dump_table(table='test', order='id', columns=dumpspec,
db=self.src, fh=self.fh)
self.fh.seek(0)
self.dst.execute('PRAGMA journal_mode = WAL')
deltadump.load_table(table='test', columns=dumpspec, db=self.dst,
fh=self.fh, trx_rows=10)
self.compare_tables(self.src, self.dst)
def test_1_vals_1(self):
self.fill_vals(self.src)
dumpspec = (('id', deltadump.INTEGER, 0),)
deltadump.dump_table(table='test', order='id', columns=dumpspec,
db=self.src, fh=self.fh)
self.fh.seek(0)
deltadump.load_table(table='test', columns=dumpspec, db=self.dst,
fh=self.fh)
self.compare_tables(self.src, self.dst)
def test_1_vals_2(self):
self.fill_vals(self.src)
dumpspec = (('id', deltadump.INTEGER, 1),)
deltadump.dump_table(table='test', order='id', columns=dumpspec,
db=self.src, fh=self.fh)
self.fh.seek(0)
deltadump.load_table(table='test', columns=dumpspec, db=self.dst,
fh=self.fh)
self.compare_tables(self.src, self.dst)
def test_1_vals_3(self):
self.fill_vals(self.src)
dumpspec = (('id', deltadump.INTEGER, -1),)
deltadump.dump_table(table='test', order='id', columns=dumpspec,
db=self.src, fh=self.fh)
self.fh.seek(0)
deltadump.load_table(table='test', columns=dumpspec, db=self.dst,
fh=self.fh)
self.compare_tables(self.src, self.dst)
def test_2_buf_auto(self):
self.fill_vals(self.src)
self.fill_buf(self.src)
dumpspec = (('id', deltadump.INTEGER),
('buf', deltadump.BLOB))
deltadump.dump_table(table='test', order='id', columns=dumpspec,
db=self.src, fh=self.fh)
self.fh.seek(0)
deltadump.load_table(table='test', columns=dumpspec, db=self.dst,
fh=self.fh)
self.compare_tables(self.src, self.dst)
def test_2_buf_fixed(self):
BUFLEN = 32
self.fill_vals(self.src)
self.fill_buf(self.src, BUFLEN)
dumpspec = (('id', deltadump.INTEGER),
('buf', deltadump.BLOB, BUFLEN))
deltadump.dump_table(table='test', order='id', columns=dumpspec,
db=self.src, fh=self.fh)
self.fh.seek(0)
deltadump.load_table(table='test', columns=dumpspec, db=self.dst,
fh=self.fh)
self.compare_tables(self.src, self.dst)
def test_3_deltas_1(self):
self.fill_deltas(self.src)
dumpspec = (('id', deltadump.INTEGER, 0),)
deltadump.dump_table(table='test', order='id', columns=dumpspec,
db=self.src, fh=self.fh)
self.fh.seek(0)
deltadump.load_table(table='test', columns=dumpspec, db=self.dst,
fh=self.fh)
self.compare_tables(self.src, self.dst)
def test_3_deltas_2(self):
self.fill_deltas(self.src)
dumpspec = (('id', deltadump.INTEGER, 1),)
deltadump.dump_table(table='test', order='id', columns=dumpspec,
db=self.src, fh=self.fh)
self.fh.seek(0)
deltadump.load_table(table='test', columns=dumpspec, db=self.dst,
fh=self.fh)
self.compare_tables(self.src, self.dst)
def test_3_deltas_3(self):
self.fill_deltas(self.src)
dumpspec = (('id', deltadump.INTEGER, -1),)
deltadump.dump_table(table='test', order='id', columns=dumpspec,
db=self.src, fh=self.fh)
self.fh.seek(0)
deltadump.load_table(table='test', columns=dumpspec, db=self.dst,
fh=self.fh)
self.compare_tables(self.src, self.dst)
def test_5_multi(self):
self.fill_vals(self.src)
dumpspec = (('id', deltadump.INTEGER, 0),)
deltadump.dump_table(table='test', order='id', columns=dumpspec,
db=self.src, fh=self.fh)
deltadump.dump_table(table='test', order='id', columns=dumpspec,
db=self.src, fh=self.fh)
self.fh.seek(0)
deltadump.load_table(table='test', columns=dumpspec, db=self.dst,
fh=self.fh)
self.dst.execute('DELETE FROM test')
deltadump.load_table(table='test', columns=dumpspec, db=self.dst,
fh=self.fh)
self.compare_tables(self.src, self.dst)
def compare_tables(self, db1, db2):
i1 = db1.query('SELECT id, buf FROM test ORDER BY id')
i2 = db2.query('SELECT id, buf FROM test ORDER BY id')
for (id1, buf1) in i1:
(id2, buf2) = next(i2)
self.assertEqual(id1, id2)
if isinstance(buf1, float):
self.assertAlmostEqual(buf1, buf2, places=9)
else:
self.assertEqual(buf1, buf2)
self.assertRaises(StopIteration, i2.__next__)
def fill_buf(self, db, len_=None):
with open('/dev/urandom', 'rb') as rfh:
first = True
for (id_,) in db.query('SELECT id FROM test'):
if len_ is None and first:
val = b'' # We always want to check this case
first = False
elif len_ is None:
val = rfh.read(random.randint(0, 140))
else:
val = rfh.read(len_)
db.execute('UPDATE test SET buf=? WHERE id=?', (val, id_))
def fill_vals(self, db):
vals = []
for exp in [7, 8, 9, 15, 16, 17, 31, 32, 33, 62]:
vals += list(range(2 ** exp - 5, 2 ** exp + 6))
vals += list(range(2 ** 63 - 5, 2 ** 63))
vals += [ -v for v in vals ]
vals.append(-(2 ** 63))
for val in vals:
db.execute('INSERT INTO test (id) VALUES(?)', (val,))
def fill_deltas(self, db):
deltas = []
for exp in [7, 8, 9, 15, 16, 17, 31, 32, 33]:
deltas += list(range(2 ** exp - 5, 2 ** exp + 6))
deltas += [ -v for v in deltas ]
last = 0
for delta in deltas:
val = last + delta
last = val
db.execute('INSERT INTO test (id) VALUES(?)', (val,))
def create_table(self, db):
db.execute('''CREATE TABLE test (
id INTEGER PRIMARY KEY AUTOINCREMENT,
buf BLOB)''')
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