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init_test.py
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import os
import unittest
from .helpers.ptrack_helpers import dir_files, ProbackupTest, ProbackupException
import shutil
class InitTest(ProbackupTest, unittest.TestCase):
# @unittest.skip("skip")
# @unittest.expectedFailure
def test_success(self):
"""Success normal init"""
backup_dir = os.path.join(self.tmp_path, self.module_name, self.fname, 'backup')
node = self.make_simple_node(base_dir=os.path.join(self.module_name, self.fname, 'node'))
self.init_pb(backup_dir)
self.assertEqual(
dir_files(backup_dir),
['backups', 'wal']
)
self.add_instance(backup_dir, 'node', node)
self.assertIn(
"INFO: Instance 'node' successfully deleted",
self.del_instance(backup_dir, 'node'),
'\n Unexpected Error Message: {0}\n CMD: {1}'.format(repr(self.output), self.cmd))
# Show non-existing instance
try:
self.show_pb(backup_dir, 'node')
self.assertEqual(1, 0, 'Expecting Error due to show of non-existing instance. Output: {0} \n CMD: {1}'.format(
repr(self.output), self.cmd))
except ProbackupException as e:
self.assertIn(
"ERROR: Instance 'node' does not exist in this backup catalog",
e.message,
'\n Unexpected Error Message: {0}\n CMD: {1}'.format(e.message, self.cmd))
# Delete non-existing instance
try:
self.del_instance(backup_dir, 'node1')
self.assertEqual(1, 0, 'Expecting Error due to delete of non-existing instance. Output: {0} \n CMD: {1}'.format(
repr(self.output), self.cmd))
except ProbackupException as e:
self.assertIn(
"ERROR: Instance 'node1' does not exist in this backup catalog",
e.message,
'\n Unexpected Error Message: {0}\n CMD: {1}'.format(e.message, self.cmd))
# Add instance without pgdata
try:
self.run_pb([
"add-instance",
"--instance=node1",
"-B", backup_dir
])
self.assertEqual(1, 0, 'Expecting Error due to adding instance without pgdata. Output: {0} \n CMD: {1}'.format(
repr(self.output), self.cmd))
except ProbackupException as e:
self.assertIn(
"ERROR: No postgres data directory specified.\n"
"Please specify it either using environment variable PGDATA or\ncommand line option --pgdata (-D)",
e.message,
'\n Unexpected Error Message: {0}\n CMD: {1}'.format(e.message, self.cmd))
# @unittest.skip("skip")
def test_already_exist(self):
"""Failure with backup catalog already existed"""
backup_dir = os.path.join(self.tmp_path, self.module_name, self.fname, 'backup')
node = self.make_simple_node(base_dir=os.path.join(self.module_name, self.fname, 'node'))
self.init_pb(backup_dir)
try:
self.show_pb(backup_dir, 'node')
self.assertEqual(1, 0, 'Expecting Error due to initialization in non-empty directory. Output: {0} \n CMD: {1}'.format(
repr(self.output), self.cmd))
except ProbackupException as e:
self.assertIn(
"ERROR: Instance 'node' does not exist in this backup catalog",
e.message,
'\n Unexpected Error Message: {0}\n CMD: {1}'.format(repr(e.message), self.cmd))
# @unittest.skip("skip")
def test_abs_path(self):
"""failure with backup catalog should be given as absolute path"""
backup_dir = os.path.join(self.tmp_path, self.module_name, self.fname, 'backup')
node = self.make_simple_node(base_dir=os.path.join(self.module_name, self.fname, 'node'))
try:
self.run_pb(["init", "-B", os.path.relpath("%s/backup" % node.base_dir, self.dir_path)])
self.assertEqual(1, 0, 'Expecting Error due to initialization with non-absolute path in --backup-path. Output: {0} \n CMD: {1}'.format(
repr(self.output), self.cmd))
except ProbackupException as e:
self.assertIn(
"ERROR: -B, --backup-path must be an absolute path",
e.message,
'\n Unexpected Error Message: {0}\n CMD: {1}'.format(repr(e.message), self.cmd))
# @unittest.skip("skip")
# @unittest.expectedFailure
def test_add_instance_idempotence(self):
"""
https://github.com/postgrespro/pg_probackup/issues/219
"""
backup_dir = os.path.join(self.tmp_path, self.module_name, self.fname, 'backup')
node = self.make_simple_node(base_dir=os.path.join(self.module_name, self.fname, 'node'))
self.init_pb(backup_dir)
self.add_instance(backup_dir, 'node', node)
shutil.rmtree(os.path.join(backup_dir, 'backups', 'node'))
dir_backups = os.path.join(backup_dir, 'backups', 'node')
dir_wal = os.path.join(backup_dir, 'wal', 'node')
try:
self.add_instance(backup_dir, 'node', node)
# we should die here because exception is what we expect to happen
self.assertEqual(
1, 0,
"Expecting Error because page backup should not be possible "
"\n Output: {0} \n CMD: {1}".format(
repr(self.output), self.cmd))
except ProbackupException as e:
self.assertIn(
"ERROR: Instance 'node' WAL archive directory already exists: ",
e.message,
"\n Unexpected Error Message: {0}\n CMD: {1}".format(
repr(e.message), self.cmd))
try:
self.add_instance(backup_dir, 'node', node)
# we should die here because exception is what we expect to happen
self.assertEqual(
1, 0,
"Expecting Error because page backup should not be possible "
"\n Output: {0} \n CMD: {1}".format(
repr(self.output), self.cmd))
except ProbackupException as e:
self.assertIn(
"ERROR: Instance 'node' WAL archive directory already exists: ",
e.message,
"\n Unexpected Error Message: {0}\n CMD: {1}".format(
repr(e.message), self.cmd))