Added/Updated tests\bugs\gh_6267_test.py: Checked on 6.0.0.396, 5.0.1.1440, 4.0.5.3127

tests/bugs/gh_6267_test.py

@@ -0,0 +1,43 @@
+#coding:utf-8
+
+"""
+ID:          issue-6267
+ISSUE:       https://github.com/FirebirdSQL/firebird/issues/6267
+TITLE:       Add transaction info fb_info_tra_snapshot_number [CORE6017]
+DESCRIPTION:
+    Test verifies ability to use appropriate API info and whether value of
+    returned snapshot_number equals to RDB$GET_CONTEXT('SYSTEM', 'SNAPSHOT_NUMBER').
+NOTES:
+    [22.07.2024] pzotov
+    Checked on 6.0.0.396, 5.0.1.1440, 4.0.5.3127
+"""
+
+import pytest
+from firebird.qa import *
+from firebird.driver import tpb, Isolation
+
+db = db_factory()
+act = python_act('db')
+
+CUSTOM_TPB = tpb(isolation = Isolation.SNAPSHOT)
+
+@pytest.mark.version('>=4.0')
+def test_1(act: Action, capsys):
+    with act.db.connect() as con:
+        tx1 = con.transaction_manager(CUSTOM_TPB)
+        tx1.begin()
+        cur1 = tx1.cursor()
+        
+        cur1.execute("select RDB$GET_CONTEXT('SYSTEM', 'SNAPSHOT_NUMBER') from rdb$database")
+        ctx_sn = int(cur1.fetchone()[0])
+        if ctx_sn == tx1.info.snapshot_number:
+            print('OK')
+        else:
+            print(f'MISMATCH: RDB$GET_CONTEXT={ctx_sn}, {tx1.info.snapshot_number=}')
+        tx1.commit()
+
+    act.expected_stdout = """
+        OK
+    """
+    act.stdout = capsys.readouterr().out
+    assert act.clean_stdout == act.clean_expected_stdout