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test(lifecycle): add property-based coverage for rule evaluation (#4824)
Co-authored-by: houseme <housemecn@gmail.com>
This commit is contained in:
Zhengchao An
Generated
+1
@@ -9464,6 +9464,7 @@ name = "rustfs-lifecycle"
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version = "1.0.0-beta.9"
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dependencies = [
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"async-trait",
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"proptest",
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"rustfs-common",
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"rustfs-config",
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"rustfs-replication",
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@@ -38,6 +38,7 @@ url.workspace = true
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uuid = { workspace = true, features = ["v4", "serde"] }
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[dev-dependencies]
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proptest = "1"
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serial_test.workspace = true
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temp-env.workspace = true
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tokio = { workspace = true, features = ["macros", "rt"] }
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@@ -965,7 +965,7 @@ pub async fn abort_incomplete_multipart_upload_due(
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.min_by_key(|(due, _)| due.unix_timestamp_nanos())
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}
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#[derive(Default)]
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#[derive(Debug, Default)]
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pub struct ObjectOpts {
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pub name: String,
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pub user_tags: String,
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@@ -3456,4 +3456,516 @@ mod tests {
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// Without ExpiredObjectAllVersions, should use normal DeleteAction
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assert_eq!(event.action, IlmAction::DeleteAction);
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}
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/// Property-based tests for the rule evaluator (backlog#1148 ilm-14,
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/// follow-up to backlog#1030 / rustfs#4455).
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///
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/// backlog#1030 found that the old hand-written winner comparator was not a
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/// strict weak ordering and could panic — proof that enumerated cases do
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/// not cover the space of colliding events. These properties pin, over
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/// randomized rule sets and object states:
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///
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/// * `eval_inner` never panics and is deterministic for a fixed input;
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/// * the winning event matches an independently recomputed candidate set:
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/// earliest `due` wins, ties break toward delete-class actions (the
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/// `min_by_key` selection that replaced the rustfs#4455 comparator);
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/// * `expected_expiry_time` is monotonically non-decreasing in `days` and
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/// always lands on the processing boundary, both at production defaults
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/// and under an explicit `RUSTFS_ILM_PROCESS_TIME`.
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///
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/// Case counts are tuned so the whole module runs in seconds inside the
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/// default CI test job.
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mod proptests {
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use super::*;
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use proptest::prelude::*;
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use s3s::dto::{NoncurrentVersionExpiration, Tag};
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use serial_test::serial;
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const DAY_SECS: i64 = 86400;
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/// Fixed positive anchor so generated instants stay in a realistic
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/// range; strategies explore offsets around it.
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fn base() -> OffsetDateTime {
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datetime!(2025-01-01 00:00:00 UTC)
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}
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fn ts(offset_secs: i64) -> OffsetDateTime {
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base() + Duration::seconds(offset_secs)
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}
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/// Pin the day length and processing boundary to production defaults
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/// for the duration of `f`. `temp_env` also serializes environment
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/// access against the other env-sensitive tests in this file.
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fn with_production_time_env<T>(f: impl FnOnce() -> T) -> T {
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temp_env::with_vars(
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[
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(ENV_ILM_DEBUG_DAY_SECS, None::<&str>),
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(ENV_ILM_PROCESS_TIME, None),
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(ENV_ILM_PROCESS_TIME_DEPRECATED, None),
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],
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f,
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)
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}
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fn arb_opt_time(window_secs: i64) -> impl Strategy<Value = Option<OffsetDateTime>> {
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prop_oneof![
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2 => Just(None),
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1 => Just(Some(OffsetDateTime::UNIX_EPOCH)),
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5 => (-window_secs..window_secs).prop_map(|s| Some(ts(s))),
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]
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}
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fn arb_object_name() -> impl Strategy<Value = String> {
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prop_oneof![
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1 => Just(String::new()),
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3 => Just("docs/report.txt".to_string()),
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2 => Just("logs/app.log".to_string()),
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1 => "[a-z]{1,12}",
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]
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}
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fn arb_user_tags() -> impl Strategy<Value = String> {
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prop_oneof![
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Just(String::new()),
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Just("env=prod".to_string()),
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Just("env=prod&team=storage".to_string()),
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Just("team=storage".to_string()),
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]
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}
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fn arb_transition_status() -> impl Strategy<Value = String> {
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prop_oneof![
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Just(String::new()),
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Just(TRANSITION_PENDING.to_string()),
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Just(TRANSITION_COMPLETE.to_string()),
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]
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}
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prop_compose! {
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fn arb_object_identity()(
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name in arb_object_name(),
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user_tags in arb_user_tags(),
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mod_time in arb_opt_time(4 * DAY_SECS),
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size in prop_oneof![Just(0usize), (1usize..1_048_576), Just(usize::MAX >> 1)],
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version_id in prop_oneof![Just(None), Just(Some(Uuid::nil())), Just(Some(Uuid::from_u128(7)))],
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is_latest in any::<bool>(),
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delete_marker in any::<bool>(),
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) -> (String, String, Option<OffsetDateTime>, usize, Option<Uuid>, bool, bool) {
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(name, user_tags, mod_time, size, version_id, is_latest, delete_marker)
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}
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}
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prop_compose! {
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/// Random object state across the version-chain dimensions: chain
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/// position (`is_latest` / `num_versions` / `successor_mod_time`),
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/// delete markers, suspension, and transition status.
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fn arb_object_opts()(
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(name, user_tags, mod_time, size, version_id, is_latest, delete_marker) in arb_object_identity(),
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num_versions in 0usize..4,
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successor_mod_time in arb_opt_time(4 * DAY_SECS),
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transition_status in arb_transition_status(),
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restore_ongoing in any::<bool>(),
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restore_expires in arb_opt_time(2 * DAY_SECS),
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versioned in any::<bool>(),
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version_suspended in any::<bool>(),
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) -> ObjectOpts {
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ObjectOpts {
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name,
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user_tags,
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mod_time,
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size,
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version_id,
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is_latest,
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delete_marker,
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num_versions,
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successor_mod_time,
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transition_status,
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restore_ongoing,
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restore_expires,
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versioned,
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version_suspended,
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..Default::default()
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}
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}
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}
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fn arb_prefix() -> impl Strategy<Value = Option<String>> {
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prop_oneof![
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3 => Just(None),
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1 => Just(Some(String::new())),
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2 => Just(Some("docs/".to_string())),
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1 => Just(Some("logs/".to_string())),
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]
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}
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fn arb_filter() -> impl Strategy<Value = Option<LifecycleRuleFilter>> {
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prop_oneof![
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4 => Just(None),
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1 => Just(Some(LifecycleRuleFilter {
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prefix: Some("docs/".to_string()),
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..Default::default()
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})),
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1 => Just(Some(LifecycleRuleFilter {
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tag: Some(Tag {
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key: Some("env".to_string()),
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value: Some("prod".to_string()),
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}),
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..Default::default()
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})),
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1 => (0i64..2048).prop_map(|gt| Some(LifecycleRuleFilter {
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object_size_greater_than: Some(gt),
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..Default::default()
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})),
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]
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}
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prop_compose! {
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fn arb_expiration()(
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date_off in prop::option::of(-2 * DAY_SECS..2 * DAY_SECS),
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days in prop::option::of(0i32..4),
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delete_marker_flag in prop::option::of(any::<bool>()),
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all_versions in prop::option::of(any::<bool>()),
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) -> LifecycleExpiration {
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LifecycleExpiration {
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date: date_off.map(|s| ts(s).into()),
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days,
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expired_object_delete_marker: delete_marker_flag,
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expired_object_all_versions: all_versions,
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}
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}
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}
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prop_compose! {
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fn arb_transition()(
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date_off in prop::option::of(-2 * DAY_SECS..2 * DAY_SECS),
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days in prop::option::of(0i32..4),
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storage_class in prop_oneof![
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Just(None),
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Just(Some(TransitionStorageClass::from_static(""))),
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Just(Some(TransitionStorageClass::from_static("COLD"))),
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],
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) -> Transition {
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Transition {
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date: date_off.map(|s| ts(s).into()),
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days,
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storage_class,
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}
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}
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}
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prop_compose! {
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/// Fully random rule across every dimension the evaluator reads:
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/// Days/Date expiration and transition, prefix, tag/size filters,
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/// noncurrent actions, delete-marker actions, AllVersions.
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fn arb_rule()(
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enabled in prop::bool::weighted(0.8),
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id in prop::option::of("[a-z]{1,6}"),
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prefix in arb_prefix(),
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filter in arb_filter(),
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expiration in prop::option::of(arb_expiration()),
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transitions in prop::option::of(prop::collection::vec(arb_transition(), 0..2)),
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nc_exp in prop::option::of((prop::option::of(0i32..4), prop::option::of(0i32..3))),
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nc_tr in prop::option::of((prop::option::of(0i32..4), any::<bool>())),
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dme_days in prop::option::of(0i32..3),
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abort_days in prop::option::of(0i32..3),
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) -> LifecycleRule {
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LifecycleRule {
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status: if enabled {
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ExpirationStatus::from_static(ExpirationStatus::ENABLED)
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} else {
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ExpirationStatus::from_static(ExpirationStatus::DISABLED)
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},
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id,
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prefix,
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filter,
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expiration,
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transitions,
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noncurrent_version_expiration: nc_exp.map(|(noncurrent_days, newer_noncurrent_versions)| {
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NoncurrentVersionExpiration {
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noncurrent_days,
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newer_noncurrent_versions,
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}
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}),
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noncurrent_version_transitions: nc_tr.map(|(noncurrent_days, has_sc)| {
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vec![NoncurrentVersionTransition {
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noncurrent_days,
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newer_noncurrent_versions: None,
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storage_class: has_sc.then(|| TransitionStorageClass::from_static("COLD")),
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}]
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}),
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del_marker_expiration: dme_days.map(|days| s3s::dto::DelMarkerExpiration { days: Some(days) }),
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abort_incomplete_multipart_upload: abort_days.map(|days| {
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s3s::dto::AbortIncompleteMultipartUpload {
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days_after_initiation: Some(days),
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}
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}),
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}
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}
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}
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proptest! {
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#![proptest_config(ProptestConfig::with_cases(96))]
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/// `eval_inner` must never panic on any rule/object/now
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/// combination, and must be deterministic: the same input
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/// evaluated twice yields an identical event.
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#[test]
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#[serial]
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fn eval_inner_never_panics_and_is_deterministic(
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rules in prop::collection::vec(arb_rule(), 0..4),
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obj in arb_object_opts(),
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now_off in (-4 * DAY_SECS)..(8 * DAY_SECS),
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newer_noncurrent in 0usize..4,
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) {
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let lc = BucketLifecycleConfiguration {
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expiry_updated_at: None,
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rules,
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};
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let now = ts(now_off);
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let (first, second) = block_on_with_env(&[], || async {
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let first = lc.eval_inner(&obj, now, newer_noncurrent).await;
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let second = lc.eval_inner(&obj, now, newer_noncurrent).await;
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(first, second)
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});
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prop_assert_eq!(first.action, second.action);
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prop_assert_eq!(&first.rule_id, &second.rule_id);
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prop_assert_eq!(first.due, second.due);
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prop_assert_eq!(&first.storage_class, &second.storage_class);
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}
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}
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/// One oracle candidate: `(due unix timestamp, action rank)` with rank
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/// 0 for delete-class actions and 1 otherwise.
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type Candidate = (i64, u8);
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/// Independent re-statement of the delete-class rank. Deliberately NOT
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/// `ilm_action_priority_rank`: the winner assertion classifies the
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/// actual event with this copy, so a regression in the production rank
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/// function cannot silently re-rank both sides of the comparison.
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fn oracle_rank(action: &IlmAction) -> u8 {
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match action {
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IlmAction::DeleteAllVersionsAction
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| IlmAction::DelMarkerDeleteAllVersionsAction
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| IlmAction::DeleteAction
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| IlmAction::DeleteVersionAction => 0,
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_ => 1,
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}
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}
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/// Independently recompute the eligible event set `eval_inner` should
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/// consider for a live current version under `selection`-shaped rules
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/// (expiration and first-transition only, no filters): expiration
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/// fires when `now >= due`, transition when `now > due` and the object
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/// has not already transitioned. Selection semantics under test:
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/// earliest due wins, ties prefer delete-class.
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fn oracle_candidates(lc: &BucketLifecycleConfiguration, obj: &ObjectOpts, now: OffsetDateTime) -> Vec<Candidate> {
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let mod_time = obj.mod_time.expect("selection strategy always sets mod_time");
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let mut candidates = Vec::new();
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for rule in &lc.rules {
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if let Some(expiration) = &rule.expiration {
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// Mirrors the eval branches: a Date-based expiry needs a
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// non-zero date and fires when `now >= date`; a Days-based
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// expiry fires when `now >= expected_expiry_time`.
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if let Some(date) = &expiration.date {
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let due = OffsetDateTime::from(date.clone());
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if due.unix_timestamp() != 0 && now.unix_timestamp() >= due.unix_timestamp() {
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candidates.push((due.unix_timestamp(), 0));
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}
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} else if let Some(days) = expiration.days {
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let due = expected_expiry_time(mod_time, days);
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if now.unix_timestamp() >= due.unix_timestamp() {
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candidates.push((due.unix_timestamp(), 0));
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}
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}
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}
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if obj.transition_status != TRANSITION_COMPLETE
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&& let Some(transition) = rule.transitions.as_ref().and_then(|transitions| transitions.first())
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&& transition.storage_class.as_ref().is_some_and(|sc| !sc.as_str().is_empty())
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{
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let due = if let Some(date) = &transition.date {
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Some(OffsetDateTime::from(date.clone()))
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} else {
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transition.days.map(|days| expected_expiry_time(mod_time, days))
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};
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if let Some(due) = due
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&& now.unix_timestamp() > due.unix_timestamp()
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{
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candidates.push((due.unix_timestamp(), 1));
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}
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}
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}
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candidates
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}
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prop_compose! {
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/// Rules restricted to the shapes the selection oracle models:
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/// enabled, unfiltered, with exactly one of Date/Days per action so
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/// the Date-over-Days precedence inside one action never applies.
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fn arb_selection_rule()(
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kind in 0u8..3,
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exp_by_date in any::<bool>(),
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exp_date_off in (-2 * DAY_SECS)..(2 * DAY_SECS),
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exp_days in 0i32..4,
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all_versions in any::<bool>(),
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tr_by_date in any::<bool>(),
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tr_date_off in (-2 * DAY_SECS)..(2 * DAY_SECS),
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tr_days in 0i32..4,
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id in "[a-z]{1,6}",
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) -> LifecycleRule {
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let expiration = (kind != 1).then(|| LifecycleExpiration {
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date: exp_by_date.then(|| ts(exp_date_off).into()),
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days: (!exp_by_date).then_some(exp_days),
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expired_object_delete_marker: None,
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expired_object_all_versions: all_versions.then_some(true),
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});
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let transitions = (kind != 0).then(|| {
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vec![Transition {
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date: tr_by_date.then(|| ts(tr_date_off).into()),
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days: (!tr_by_date).then_some(tr_days),
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storage_class: Some(TransitionStorageClass::from_static("COLD")),
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}]
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});
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LifecycleRule {
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status: ExpirationStatus::from_static(ExpirationStatus::ENABLED),
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id: Some(id),
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prefix: None,
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filter: None,
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expiration,
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transitions,
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noncurrent_version_expiration: None,
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noncurrent_version_transitions: None,
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del_marker_expiration: None,
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abort_incomplete_multipart_upload: None,
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}
|
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}
|
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}
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proptest! {
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#![proptest_config(ProptestConfig::with_cases(128))]
|
||||
|
||||
/// Differential test of winner selection (the rustfs#4455 fix):
|
||||
/// for a live current version under randomized expiration and
|
||||
/// transition rules, `eval_inner`'s winner must carry the
|
||||
/// minimum `(due, rank)` of the independently recomputed
|
||||
/// candidate set — earliest due wins, ties prefer delete-class —
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/// and must be `NoneAction` exactly when that set is empty.
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#[test]
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#[serial]
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fn eval_inner_winner_matches_selection_oracle(
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rules in prop::collection::vec(arb_selection_rule(), 0..5),
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mod_off in 0i64..(2 * DAY_SECS),
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now_off in (-DAY_SECS)..(6 * DAY_SECS),
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||||
already_transitioned in any::<bool>(),
|
||||
) {
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let lc = BucketLifecycleConfiguration {
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expiry_updated_at: None,
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||||
rules,
|
||||
};
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||||
let obj = ObjectOpts {
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||||
name: "docs/report.txt".to_string(),
|
||||
mod_time: Some(ts(mod_off)),
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||||
is_latest: true,
|
||||
transition_status: if already_transitioned {
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||||
TRANSITION_COMPLETE.to_string()
|
||||
} else {
|
||||
String::new()
|
||||
},
|
||||
..Default::default()
|
||||
};
|
||||
let now = ts(now_off);
|
||||
|
||||
// Oracle and evaluator must observe the same (pinned) time env.
|
||||
let (event, expected) = with_production_time_env(|| {
|
||||
let expected = oracle_candidates(&lc, &obj, now).into_iter().min();
|
||||
let rt = tokio::runtime::Builder::new_current_thread()
|
||||
.enable_all()
|
||||
.build()
|
||||
.expect("build runtime");
|
||||
let event = rt.block_on(lc.eval_inner(&obj, now, 0));
|
||||
(event, expected)
|
||||
});
|
||||
|
||||
match expected {
|
||||
None => prop_assert_eq!(event.action, IlmAction::NoneAction),
|
||||
Some((due_ts, rank)) => {
|
||||
prop_assert_ne!(event.action, IlmAction::NoneAction);
|
||||
let actual_due = event.due.expect("winning event carries a due").unix_timestamp();
|
||||
prop_assert_eq!(actual_due, due_ts);
|
||||
prop_assert_eq!(oracle_rank(&event.action), rank);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
proptest! {
|
||||
#![proptest_config(ProptestConfig::with_cases(256))]
|
||||
|
||||
/// At production defaults `expected_expiry_time` is monotonically
|
||||
/// non-decreasing in `days` (days == 0 maps to UNIX_EPOCH, below
|
||||
/// any post-1970 deadline).
|
||||
#[test]
|
||||
#[serial]
|
||||
fn expected_expiry_time_is_monotonic_in_days(
|
||||
mod_off in 0i64..(3650 * DAY_SECS),
|
||||
d1 in 0i32..2000,
|
||||
d2 in 0i32..2000,
|
||||
) {
|
||||
let (lo, hi) = if d1 <= d2 { (d1, d2) } else { (d2, d1) };
|
||||
let mod_time = ts(mod_off);
|
||||
let (e_lo, e_hi) = with_production_time_env(|| {
|
||||
(expected_expiry_time(mod_time, lo), expected_expiry_time(mod_time, hi))
|
||||
});
|
||||
prop_assert!(
|
||||
e_lo <= e_hi,
|
||||
"expected_expiry_time not monotonic: days={} -> {:?}, days={} -> {:?}",
|
||||
lo, e_lo, hi, e_hi
|
||||
);
|
||||
}
|
||||
|
||||
/// At production defaults every Days-based deadline is rounded up
|
||||
/// to the next whole-day boundary: the result is day-aligned, not
|
||||
/// before `mod_time + days`, and less than one boundary beyond it.
|
||||
#[test]
|
||||
#[serial]
|
||||
fn expected_expiry_time_lands_on_default_day_boundary(
|
||||
mod_off in 0i64..(3650 * DAY_SECS),
|
||||
days in 1i32..2000,
|
||||
) {
|
||||
let mod_time = ts(mod_off);
|
||||
let result = with_production_time_env(|| expected_expiry_time(mod_time, days));
|
||||
let boundary_nanos = i128::from(DAY_SECS) * 1_000_000_000;
|
||||
prop_assert_eq!(result.unix_timestamp_nanos().rem_euclid(boundary_nanos), 0);
|
||||
let raw = mod_time + Duration::seconds(i64::from(days) * DAY_SECS);
|
||||
prop_assert!(result >= raw);
|
||||
prop_assert!(result - raw < Duration::seconds(DAY_SECS));
|
||||
}
|
||||
|
||||
/// With an explicit `RUSTFS_ILM_PROCESS_TIME`, deadlines round up
|
||||
/// to that boundary instead: aligned to it, never early, and less
|
||||
/// than one boundary late.
|
||||
#[test]
|
||||
#[serial]
|
||||
fn expected_expiry_time_lands_on_explicit_process_boundary(
|
||||
mod_off in 0i64..(365 * DAY_SECS),
|
||||
days in 1i32..400,
|
||||
boundary in 1u32..7200,
|
||||
) {
|
||||
let mod_time = ts(mod_off);
|
||||
let boundary_str = boundary.to_string();
|
||||
let result = temp_env::with_vars(
|
||||
[
|
||||
(ENV_ILM_DEBUG_DAY_SECS, None::<&str>),
|
||||
(ENV_ILM_PROCESS_TIME, Some(boundary_str.as_str())),
|
||||
(ENV_ILM_PROCESS_TIME_DEPRECATED, None),
|
||||
],
|
||||
|| expected_expiry_time(mod_time, days),
|
||||
);
|
||||
let boundary_nanos = i128::from(boundary) * 1_000_000_000;
|
||||
prop_assert_eq!(result.unix_timestamp_nanos().rem_euclid(boundary_nanos), 0);
|
||||
let raw = mod_time + Duration::seconds(i64::from(days) * DAY_SECS);
|
||||
prop_assert!(result >= raw);
|
||||
prop_assert!(result - raw < Duration::seconds(i64::from(boundary)));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user