Added/Updated tests\bugs\gh_7536_test.py: INITIAL version of test: does NOT check tag fb_info_parallel_workers because this is not yet implemented. Checked on intermediate snapshot 5.0.0.1001.

tests/bugs/gh_7536_test.py

@@ -0,0 +1,48 @@
+#coding:utf-8
+
+"""
+ID:          issue-7537
+ISSUE:       https://github.com/FirebirdSQL/firebird/issues/7537
+TITLE:       Add ability to query current value of parallel workers for an attachment
+NOTES:
+    [03.04.2023] pzotov
+    ::: NB :::
+    This is INITIAL version of test.
+    It checks only *ability* to query values from mon$attachments and rdb$get_context.
+    It does NOT check tag fb_info_parallel_workers because this is not yet implemented
+    (BTW, 'isc_dpb_parallel_workers' also not yet avaliable in the firebird-driver).
+    ==============
+    doc/README.parallel_features.txt:
+    Default value is 1 and means no use of additional parallel workers. Value in
+    DPB have higher priority than setting in firebird.conf.
+    ...
+    ParallelWorkers - set default number of parallel workers that used by user attachments. 
+    Could be overriden by attachment using tag isc_dpb_parallel_workers in DPB.
+    ==============
+
+    Checked on intermediate snapshot 5.0.0.1001.
+"""
+
+import pytest
+from firebird.qa import *
+
+db = db_factory()
+
+test_script = """
+    set list on;
+    select 0 * mon$parallel_workers as chk_mon_parallel from mon$attachments where mon$attachment_id = current_connection;
+    select 0 * cast(rdb$get_context('SYSTEM', 'PARALLEL_WORKERS') as int) as chk_ctx_parallel from rdb$database;
+"""
+
+expected_stdout = """
+    CHK_MON_PARALLEL                0
+    CHK_CTX_PARALLEL                0
+"""
+
+act = isql_act('db', test_script)
+
+@pytest.mark.version('>=5.0')
+def test_1(act: Action):
+    act.expected_stdout = expected_stdout
+    act.execute(combine_output = True)
+    assert act.clean_stdout == act.clean_expected_stdout