Added/Updated tests\bugs\gh_8520_test.py: Checked on 6.0.0.737-cf1d367 (intermediate snapshot).

Author: pavel-zotov

tests/bugs/gh_8520_test.py

@@ -0,0 +1,68 @@
+#coding:utf-8
+
+"""
+ID:          issue-8520
+ISSUE:       https://github.com/FirebirdSQL/firebird/issues/8520
+TITLE:       Error in iTransaction.getInfo() on embedded connection
+DESCRIPTION:
+NOTES:
+    [17.04.2025] pzotov
+    Confirmed problem on 6.0.0.686 (20-mar-2025).
+    Checked on 6.0.0.737-cf1d367 (intermediate snapshot).
+"""
+
+import os
+import re
+import time
+
+import pytest
+from firebird.qa import *
+from firebird.driver import connect, driver_config, NetProtocol, DatabaseError
+
+db = db_factory()
+act = python_act('db')
+
+#-----------------------------------------------------------
+
+@pytest.mark.version('>=6.0')
+def test_1(act: Action, capsys):
+
+    srv_config = driver_config.register_server(name = 'test_8520_srv', config = '')
+    db_cfg_object = driver_config.register_database(name = 'test_8520_cfg')
+    db_cfg_object.database.value = str(act.db.db_path)
+    db_cfg_object.server.value = srv_config.name
+
+    sql_sttm = 'select mon$remote_protocol from mon$attachments where mon$attachment_id = current_connection'
+
+    protocols_list = [ None, NetProtocol.INET, ] # None - for local/embedded connection.
+    if act.platform == 'Windows':
+        protocols_list.append(NetProtocol.XNET)
+        if act.is_version('<5'):
+            protocols_list.append(NetProtocol.WNET)
+    
+    expected_out_map = {}
+    for p in protocols_list:
+        db_cfg_object.protocol.value = p
+        with connect(db_cfg_object.name, user = act.db.user, password = act.db.password) as con:
+            protocol_name = 'UNKNOWN'
+            with con.cursor() as cur:
+                 for r in cur.execute(sql_sttm):
+                     protocol_name = 'NONE' if p == None else p.name.upper()
+            try:
+                with con.main_transaction as tr:
+                    expected_out_map[ protocol_name ] = tr.info.database
+            except DatabaseError as e:
+                print(f'Error encountered for {protocol_name=}:')
+                print(e.__str__())
+                print(e.gds_codes)
+    
+    # Construct expected output + print actual result for comparison with expected one:
+    expected_out_lst = []
+    for k,v in expected_out_map.items():
+        print(k.lower(), v.lower())
+        expected_out_lst.append( (k + ' ' +  ('' if k == 'NONE' else k +'://') + str(act.db.db_path)).lower() )
+
+    expected_stdout = '\n'.join(expected_out_lst)
+    act.expected_stdout = expected_stdout
+    act.stdout = capsys.readouterr().out
+    assert act.clean_stdout == act.clean_expected_stdout