test for previous commit

Author: funny-falcon

tests/backup_test.py

@@ -3573,3 +3573,36 @@ def test_start_time_few_nodes(self):
 show_backup2 = self.show_pb(backup_dir2, 'node2')[3]
 self.assertEqual(show_backup1['id'], show_backup2['id'])
 
+def test_regress_issue_585(self):
+"""https://.com/postgrespro/pg_probackup/issues/585"""
+node = self.make_simple_node(
+base_dir=os.path.join(self.module_name, self.fname, 'node'),
+set_replication=True,
+initdb_params=['--data-checksums'])
+
+backup_dir = os.path.join(self.tmp_path, self.module_name, self.fname, 'backup')
+self.init_pb(backup_dir)
+self.add_instance(backup_dir, 'node', node)
+node.slow_start()
+
+# create couple of files that looks like db files
+with open(os.path.join(node.data_dir, 'pg_multixact/offsets/1000'),'wb') as f:
+pass
+with open(os.path.join(node.data_dir, 'pg_multixact/members/1000'),'wb') as f:
+pass
+
+self.backup_node(
+backup_dir, 'node', node, backup_type='full',
+options=['--stream'])
+
+output = self.backup_node(
+backup_dir, 'node', node, backup_type='delta',
+options=['--stream'],
+return_id=False,
+)
+self.assertNotRegex(output, r'WARNING: [^\n]* was stored as .* but looks like')
+
+node.cleanup()
+
+output = self.restore_node(backup_dir, 'node', node)
+self.assertNotRegex(output, r'WARNING: [^\n]* was stored as .* but looks like')