Fix formating

Author: kaarolch

changelog.d/tag_cardinality_limit_ttl.enhancement.md

@@ -1,20 +1,20 @@
-The `tag_cardinality_limit` transform gained an optional sliding-window TTL
-for tracked tag values, controlled by two new settings on the global block,
-each `per_metric_limits` entry, and the `Inner`/`OverrideInner` config schemas:
-
-- **`ttl_secs`**: expire tracked tag values after this many seconds since they
-  were last seen. Useful when the downstream system (e.g. Datadog custom
-  metrics) bills on a rolling unique-series window — without TTL, the
-  cardinality cache saturates `value_limit` and starts rejecting fresh values
-  long after the old ones have aged out of the billing window. When unset
-  (default), behavior is unchanged from previous releases.
-- **`ttl_generations`**: tune how the TTL window is sliced for the
-  `probabilistic` backend. Defaults to `4` (eviction granularity =
-  `ttl_secs / 4`). Memory cost is `ttl_generations * cache_size_per_key` per
-  (metric, tag-key) pair; lower `cache_size_per_key` to keep total memory flat.
-  In `exact` mode this knob only controls the sweep cadence.
-
-A new internal counter `tag_cardinality_ttl_expirations_total` reports how
-many distinct values are evicted by TTL.
-
-authors: kaarolch
+The `tag_cardinality_limit` transform gained an optional sliding-window TTL
+for tracked tag values, controlled by two new settings on the global block,
+each `per_metric_limits` entry, and the `Inner`/`OverrideInner` config schemas:
+
+- **`ttl_secs`**: expire tracked tag values after this many seconds since they
+  were last seen. Useful when the downstream system (e.g. Datadog custom
+  metrics) bills on a rolling unique-series window — without TTL, the
+  cardinality cache saturates `value_limit` and starts rejecting fresh values
+  long after the old ones have aged out of the billing window. When unset
+  (default), behavior is unchanged from previous releases.
+- **`ttl_generations`**: tune how the TTL window is sliced for the
+  `probabilistic` backend. Defaults to `4` (eviction granularity =
+  `ttl_secs / 4`). Memory cost is `ttl_generations * cache_size_per_key` per
+  (metric, tag-key) pair; lower `cache_size_per_key` to keep total memory flat.
+  In `exact` mode this knob only controls the sweep cadence.
+
+A new internal counter `tag_cardinality_ttl_expirations_total` reports how
+many distinct values are evicted by TTL.
+
+authors: kaarolch

src/transforms/tag_cardinality_limit/tag_value_set.rs

@@ -22,8 +22,7 @@ use std::{
 use bloomy::BloomFilter;
 
 use crate::{
-    event::metric::TagValueSet,
-    internal_events::TagCardinalityTtlExpired,
+    event::metric::TagValueSet, internal_events::TagCardinalityTtlExpired,
     transforms::tag_cardinality_limit::config::Mode,
 };
 

src/transforms/tag_cardinality_limit/tests.rs

@@ -1511,13 +1511,28 @@ fn contains_no_refresh_finds_inserted_values_on_all_backends() {
     });
 
     for (label, mut set) in [
-        ("exact no-ttl", AcceptedTagValueSet::new(4, &Mode::Exact, None, 4)),
-        ("bloom no-ttl", AcceptedTagValueSet::new(4, &bloom_mode, None, 4)),
-        ("exact ttl", AcceptedTagValueSet::new(4, &Mode::Exact, Some(60), 4)),
-        ("bloom ttl", AcceptedTagValueSet::new(4, &bloom_mode, Some(60), 4)),
+        (
+            "exact no-ttl",
+            AcceptedTagValueSet::new(4, &Mode::Exact, None, 4),
+        ),
+        (
+            "bloom no-ttl",
+            AcceptedTagValueSet::new(4, &bloom_mode, None, 4),
+        ),
+        (
+            "exact ttl",
+            AcceptedTagValueSet::new(4, &Mode::Exact, Some(60), 4),
+        ),
+        (
+            "bloom ttl",
+            AcceptedTagValueSet::new(4, &bloom_mode, Some(60), 4),
+        ),
     ] {
         set.insert(v1.clone());
-        assert!(set.contains_no_refresh(&v1), "{label}: should find inserted value");
+        assert!(
+            set.contains_no_refresh(&v1),
+            "{label}: should find inserted value"
+        );
     }
 }
 
@@ -1534,10 +1549,22 @@ fn ttl_zero_disables_ttl() {
         cache_size_per_key: default_cache_size(),
     });
     for (label, set) in [
-        ("exact ttl=0", AcceptedTagValueSet::new(4, &Mode::Exact, Some(0), 4)),
-        ("bloom ttl=0", AcceptedTagValueSet::new(4, &bloom_mode, Some(0), 4)),
-        ("exact ttl=None", AcceptedTagValueSet::new(4, &Mode::Exact, None, 4)),
-        ("bloom ttl=None", AcceptedTagValueSet::new(4, &bloom_mode, None, 4)),
+        (
+            "exact ttl=0",
+            AcceptedTagValueSet::new(4, &Mode::Exact, Some(0), 4),
+        ),
+        (
+            "bloom ttl=0",
+            AcceptedTagValueSet::new(4, &bloom_mode, Some(0), 4),
+        ),
+        (
+            "exact ttl=None",
+            AcceptedTagValueSet::new(4, &Mode::Exact, None, 4),
+        ),
+        (
+            "bloom ttl=None",
+            AcceptedTagValueSet::new(4, &bloom_mode, None, 4),
+        ),
     ] {
         assert!(
             !set.ttl_enabled(),