pg_get_snapshot_timestamp() test

Author: rzharkov

src/test/isolation/specs/snapfs_get_snapshot_timeout.spec

@@ -0,0 +1,16 @@
+# The recent just created snapshot cannot be older than 1 minute :)
+
+teardown {
+	select pg_remove_snapshot( ( select recent_snapshot from pg_control_snapshot() ) );
+}
+
+session "s1"
+step "s1_mk_sn" {
+	select 1 as "make_snapshot" from pg_make_snapshot();
+	select ( now() - ( select pg_get_snapshot_timestamp( ( select recent_snapshot from pg_control_snapshot() ) ) ) ) between '0 sec'::interval and '1 min'::interval as "timestamp_check"
+}
+step "s1_rc_sn_1" {
+	select pg_recover_to_snapshot( ( select recent_snapshot from pg_control_snapshot() ) );
+}
+
+permutation "s1_mk_sn"