Added/Updated tests\bugs\gh_6954_test.py: Checked on 6.0.0.396, 5.0.1.1440, 4.0.53127.

tests/bugs/gh_6954_test.py

@@ -0,0 +1,37 @@
+#coding:utf-8
+
+"""
+ID:          issue-6954
+ISSUE:       6954
+TITLE:       Add fb_info_protocol_version information request to Attachment::getInfo().
+DESCRIPTION:
+    We attempt to obtain DbInfoCode.PROTOCOL_VERSION and print only the fact that we could do that
+    (instead of its concrete value which, of course can change).
+NOTES:
+    Improvement was committed:
+    * in FB 4.x: 15.09.2021 18:25, cb2d8dfb (4.0.1.2602)
+    * in FB 5.x: 09.09.2021 17:27, 18d59a5e (5.0.0.196)
+    Before these snapshots attempt to obtain protocol version caused error:
+    ======
+    raise InterfaceError("An error response was received")
+    firebird.driver.types.InterfaceError: An error response was received
+    ======
+
+    Checked on 6.0.0.396, 5.0.1.1440, 4.0.53127.
+"""
+import pytest
+from firebird.qa import *
+from firebird.driver import DbInfoCode
+
+db = db_factory()
+act = python_act('db') #, substitutions=[('[ \t]+', ' ')])
+
+@pytest.mark.version('>=4.0.1')
+def test_1(act: Action, capsys):
+
+    with act.db.connect() as con:
+        print( con.info.get_info(DbInfoCode.PROTOCOL_VERSION) > 0 )
+
+    act.expected_stdout = 'True'
+    act.stdout = capsys.readouterr().out
+    assert act.clean_stdout == act.clean_expected_stdout