diff --git a/_primitives/_rust/keisei/tests/integration.rs b/_primitives/_rust/keisei/tests/integration.rs
index c6efc6b..02427e0 100644
--- a/_primitives/_rust/keisei/tests/integration.rs
+++ b/_primitives/_rust/keisei/tests/integration.rs
@@ -1032,6 +1032,10 @@ fn brain_load_on_typical_filesystem_no_warn() {
     assert!(
         matches!(w, fs_type::FsWarning::None | fs_type::FsWarning::Unknown),
         "standard tmpdir should not be classed as exFAT/FAT32, got {w:?}"
+    );
+}
+
+// -----------------------------------------------------------------------
 // v0.22 — schema v4 multi-brain + Scope::Auto + templated hint + registry.
 // -----------------------------------------------------------------------
 
@@ -1333,6 +1337,10 @@ fn fs_type_detection_returns_none_on_standard_fs() {
     assert!(
         !matches!(w, fs_type::FsWarning::ExFat | fs_type::FsWarning::Fat32),
         "detect_fs_warning misclassified tmpdir as {w:?}"
+    );
+}
+
+#[test]
 fn time_now_utc_string_has_rfc3339_shape() {
     let s = crate::time::now_utc_string();
     // Form: YYYY-MM-DDThh:mm:ssZ, exactly 20 bytes.