[Issue #225] fix tests

Author: gsmolk

tests/ptrack.py

@@ -413,16 +413,9 @@ def test_ptrack_uncommitted_xact(self):
             backup_dir, 'node', node, backup_type='ptrack',
             options=['--stream'])
 
-        # TODO: what's the point in taking pgdata content, then taking
-        # backup, and the trying to compare those two?  Backup issues a
-        # checkpoint, so it will modify pgdata with close to 100% chance.
         if self.paranoia:
             pgdata = self.pgdata_content(node.data_dir)
 
-        self.backup_node(
-            backup_dir, 'node', node, backup_type='ptrack',
-            options=['--stream'])
-
         node_restored = self.make_simple_node(
             base_dir=os.path.join(module_name, fname, 'node_restored'))
         node_restored.cleanup()
@@ -3954,7 +3947,7 @@ def test_ptrack_pg_resetxlog(self):
             )
         except ProbackupException as e:
             self.assertIn(
-                'ERROR: LSN from ptrack_control 0/0 differs from STOP LSN of previous backup',
+                'ERROR: LSN from ptrack_control 0/0 differs from Start LSN of previous backup',
                 e.message,
                 '\n Unexpected Error Message: {0}\n'
                 ' CMD: {1}'.format(repr(e.message), self.cmd))