test: added database unit tests for session handling

Author: adrianprelipcean

db/tests/unit/session_reset.test.sql

@@ -0,0 +1,63 @@
+BEGIN;
+-- Plan the tests.
+SELECT plan(3);
+
+INSERT INTO rate_limit.sessions (id, name_, type_, expires_at)
+SELECT
+    '00000000-0000-0000-0000-000000000000'::uuid AS id,
+    'dedicated-test-1'::text AS name_,
+    'aggregated'::text AS type_,
+    '2023-09-28 06:00:00+0000'::timestamptz AS expires_at
+UNION
+SELECT
+    '00000000-1111-1111-1111-000000000000'::uuid AS id,
+    'dedicated-test-2'::text AS name_,
+    'aggregated'::text AS type_,
+    '2023-09-28 08:00:00+0000'::timestamptz AS expires_at;
+
+
+SELECT results_eq(
+    $have$
+    SELECT name_, type_
+    FROM rate_limit.session_reset(
+        'dedicated-test-1'::text,
+        'aggregated'::text,
+        '2023-09-29 06:00:00+0000'::timestamptz)
+    $have$,
+    $want$
+    SELECT
+        'dedicated-test-1'::text AS name_,
+        'aggregated'::text AS type_
+    $want$,
+    'rate_limit.session_reset returns correct values'
+);
+
+SELECT results_eq(
+    $have$
+    SELECT name_, type_, expires_at
+    FROM rate_limit.sessions
+    WHERE name_  = 'dedicated-test-1'
+    $have$,
+    $want$
+    SELECT
+        'dedicated-test-1'::text AS name_,
+        'aggregated'::text AS type_,
+        '2023-09-29 06:00:00+0000'::timestamptz AS expires_at
+    $want$,
+    'rate_limit.session_reset persists correct entries to table'
+);
+
+SELECT results_ne(
+    $have$
+    SELECT id
+    FROM rate_limit.sessions
+    WHERE name_  = 'dedicated-test-1'
+    $have$,
+    $want$
+    SELECT '00000000-0000-0000-0000-000000000000'::uuid AS id;
+    $want$,
+    'rate_limit.session_reset forces change of id while keeping name'
+);
+-- Finish the tests and clean up.
+SELECT finish FROM finish();
+ROLLBACK;

db/tests/unit/session_select.test.sql

@@ -0,0 +1,38 @@
+BEGIN;
+-- Plan the tests.
+SELECT plan(1);
+
+INSERT INTO rate_limit.sessions (id, name_, type_, expires_at)
+SELECT
+    '00000000-0000-0000-0000-000000000000'::uuid AS id,
+    'dedicated-test-1'::text AS name_,
+    'aggregated'::text AS type_,
+    '2023-09-28 06:00:00+0000'::timestamptz AS expires_at
+UNION
+SELECT
+    '00000000-1111-1111-1111-000000000000'::uuid AS id,
+    'dedicated-test-2'::text AS name_,
+    'aggregated'::text AS type_,
+    '2023-09-28 08:00:00+0000'::timestamptz AS expires_at;
+
+
+SELECT results_eq(
+    $have$
+    SELECT id, name_, type_, expires_at
+    FROM rate_limit.session_select(
+        'dedicated-test-1'::text,
+        'aggregated'::text)
+    $have$,
+    $want$
+    SELECT
+    '00000000-0000-0000-0000-000000000000'::uuid AS id,
+        'dedicated-test-1'::text AS name_,
+        'aggregated'::text AS type_,
+        '2023-09-28 06:00:00+0000'::timestamptz AS expires_at
+    $want$,
+    'rate_limit.session_select returns correct values'
+);
+
+-- Finish the tests and clean up.
+SELECT finish FROM finish();
+ROLLBACK;