Added/Updated tests\bugs\gh_8084_test.py: Checked on 6.0.0.321 #1d96c10 - all OK.

tests/bugs/gh_8084_test.py

@@ -0,0 +1,69 @@
+#coding:utf-8
+
+"""
+ID:          issue-8084
+ISSUE:       https://github.com/FirebirdSQL/firebird/issues/8084
+TITLE:       Partial index uniqueness violation
+DESCRIPTION:
+NOTES:
+    [18.04.2024] pzotov
+    Confirmed bug on 6.0.0.315
+    Checked on 6.0.0.321 #1d96c10 - all OK.
+"""
+
+import pytest
+from firebird.qa import *
+
+db = db_factory()
+
+test_script = """
+    set list on;
+    recreate table test (
+      id bigint primary key
+      ,a bigint not null
+      ,b smallint not null
+    );
+
+    create unique index idx_test_a on test(a) where (b = 1);
+
+    insert into test(id, a, b) values (1, 1, 0);
+    insert into test(id, a, b) values (2, 2, 1);
+    commit;
+
+    insert into test(id, a, b) values (3, 1, 0); -- must pass
+    commit;
+    insert into test(id, a, b) values (4, 2, 1); -- must fail with "attempt to store duplicate value"
+    rollback;
+
+    update test set b = 1 where id = 1; -- must pass
+    commit;
+
+    update test set b = 1 where id = 3; -- BUG was here: passed before fix but must fail.
+    commit;
+
+    select a+0 as a, count(*) as a_cnt from test where b+0 = 1 group by a+0;
+"""
+
+act = isql_act('db', test_script, substitutions=[('[ \t]+', ' ')])
+
+expected_stdout = """
+    Statement failed, SQLSTATE = 23000
+    attempt to store duplicate value (visible to active transactions) in unique index "IDX_TEST_A"
+    -Problematic key value is ("A" = 2)
+
+    Statement failed, SQLSTATE = 23000
+    attempt to store duplicate value (visible to active transactions) in unique index "IDX_TEST_A"
+    -Problematic key value is ("A" = 1)
+
+    A 1
+    A_CNT 1
+
+    A 2
+    A_CNT 1
+"""
+
+@pytest.mark.version('>=6.0.0')
+def test_1(act: Action):
+    act.expected_stdout = expected_stdout
+    act.execute(combine_output = True)
+    assert act.clean_stdout == act.clean_expected_stdout