diff --git a/tests/cli.rs b/tests/cli.rs
index db7be7c..ddb81af 100644
--- a/tests/cli.rs
+++ b/tests/cli.rs
@@ -436,7 +436,14 @@ fn test_pack_symbol_includes_reference_sites() {
 
     let out = stdout(&run_ok(
         &dir,
-        &["pack", "--symbol", "Widget", "--format", "json", "--dry-run"],
+        &[
+            "pack",
+            "--symbol",
+            "Widget",
+            "--format",
+            "json",
+            "--dry-run",
+        ],
     ));
     assert!(
         out.contains("src/handlers/app.rs"),
@@ -449,7 +456,10 @@ fn test_pack_symbol_includes_reference_sites() {
 
     // status --json exposes the new edge count, > 0 here.
     let status = stdout(&run_ok(&dir, &["status", "--json"]));
-    assert!(status.contains("\"referenceEdges\""), "status has referenceEdges: {status}");
+    assert!(
+        status.contains("\"referenceEdges\""),
+        "status has referenceEdges: {status}"
+    );
     assert!(
         status.contains("\"referenceLanguages\""),
         "status names covered languages: {status}"
diff --git a/tests/ladybug_smoke.rs b/tests/ladybug_smoke.rs
index de58ed1..22f2a43 100644
--- a/tests/ladybug_smoke.rs
+++ b/tests/ladybug_smoke.rs
@@ -107,19 +107,21 @@ fn ladybug_reference_edge_roundtrips() {
         exported: true,
     };
     // Target (declared) and referrer (the enclosing decl that uses it).
-    store.upsert_symbol(mk("sym:a.cs#class#Employee#1", "Employee", "a.cs")).unwrap();
-    store.upsert_symbol(mk("sym:b.cs#class#Attendance#1", "Attendance", "b.cs")).unwrap();
+    store
+        .upsert_symbol(mk("sym:a.cs#class#Employee#1", "Employee", "a.cs"))
+        .unwrap();
+    store
+        .upsert_symbol(mk("sym:b.cs#class#Attendance#1", "Attendance", "b.cs"))
+        .unwrap();
     store
         .link_symbol_references("sym:b.cs#class#Attendance#1", "sym:a.cs#class#Employee#1")
         .expect("link references");
 
     // The referrer file must come back via symbol_references on the target name.
-    let refs = store.symbol_references("Employee").expect("symbol_references");
-    assert_eq!(
-        refs.len(),
-        1,
-        "exactly one referrer expected, got {refs:?}"
-    );
+    let refs = store
+        .symbol_references("Employee")
+        .expect("symbol_references");
+    assert_eq!(refs.len(), 1, "exactly one referrer expected, got {refs:?}");
     assert_eq!(refs[0].path, "b.cs");
     assert_eq!(store.stats().unwrap().reference_edges, 1);
 
diff --git a/tests/unit.rs b/tests/unit.rs
index e5e2f53..64e312b 100644
--- a/tests/unit.rs
+++ b/tests/unit.rs
@@ -1000,7 +1000,11 @@ fn index_creates_reference_edges_csharp() {
     let tmp = std::env::temp_dir().join(format!("synapse-ref-cs-{}", std::process::id()));
     let _ = std::fs::remove_dir_all(&tmp);
     std::fs::create_dir_all(&tmp).unwrap();
-    std::fs::write(tmp.join("Event.cs"), "namespace N { public record UserRegistered(int Id); }").unwrap();
+    std::fs::write(
+        tmp.join("Event.cs"),
+        "namespace N { public record UserRegistered(int Id); }",
+    )
+    .unwrap();
     std::fs::write(
         tmp.join("Handler.cs"),
         "namespace N { class Handler { void On() { var e = new UserRegistered(1); } } }",
@@ -1009,7 +1013,16 @@ fn index_creates_reference_edges_csharp() {
 
     let repo = Repo { root: tmp.clone() };
     let store = MemoryGraphStore::new();
-    index_repo(&repo, &SynapseConfig::default(), &store, true, false, "2026-06-01T00:00:00+00:00", None).unwrap();
+    index_repo(
+        &repo,
+        &SynapseConfig::default(),
+        &store,
+        true,
+        false,
+        "2026-06-01T00:00:00+00:00",
+        None,
+    )
+    .unwrap();
 
     let refs = store.symbol_references("UserRegistered").unwrap();
     assert!(
@@ -1019,7 +1032,9 @@ fn index_creates_reference_edges_csharp() {
     // And it must surface through the consumer path that pack/related use.
     let related = store.related_to_symbol("UserRegistered", 1).unwrap();
     assert!(
-        related.iter().any(|r| r.path == "Handler.cs" && r.depth == 1),
+        related
+            .iter()
+            .any(|r| r.path == "Handler.cs" && r.depth == 1),
         "related_to_symbol must include the caller at depth 1: {related:?}"
     );
 
@@ -1035,12 +1050,25 @@ fn index_creates_reference_edges_rust() {
     let tmp = std::env::temp_dir().join(format!("synapse-ref-rs-{}", std::process::id()));
     let _ = std::fs::remove_dir_all(&tmp);
     std::fs::create_dir_all(&tmp).unwrap();
-    std::fs::write(tmp.join("widget.rs"), "pub struct Widget; impl Widget { pub fn new() -> Widget { Widget } }").unwrap();
+    std::fs::write(
+        tmp.join("widget.rs"),
+        "pub struct Widget; impl Widget { pub fn new() -> Widget { Widget } }",
+    )
+    .unwrap();
     std::fs::write(tmp.join("app.rs"), "fn run() { let _w = Widget::new(); }").unwrap();
 
     let repo = Repo { root: tmp.clone() };
     let store = MemoryGraphStore::new();
-    index_repo(&repo, &SynapseConfig::default(), &store, true, false, "2026-06-01T00:00:00+00:00", None).unwrap();
+    index_repo(
+        &repo,
+        &SynapseConfig::default(),
+        &store,
+        true,
+        false,
+        "2026-06-01T00:00:00+00:00",
+        None,
+    )
+    .unwrap();
 
     let refs = store.symbol_references("Widget").unwrap();
     assert!(
@@ -1061,11 +1089,24 @@ fn index_creates_reference_edges_ts() {
     let _ = std::fs::remove_dir_all(&tmp);
     std::fs::create_dir_all(&tmp).unwrap();
     std::fs::write(tmp.join("widget.ts"), "export class Widget {}").unwrap();
-    std::fs::write(tmp.join("app.ts"), "import { Widget } from './widget';\nfunction make() { return new Widget(); }").unwrap();
+    std::fs::write(
+        tmp.join("app.ts"),
+        "import { Widget } from './widget';\nfunction make() { return new Widget(); }",
+    )
+    .unwrap();
 
     let repo = Repo { root: tmp.clone() };
     let store = MemoryGraphStore::new();
-    index_repo(&repo, &SynapseConfig::default(), &store, true, false, "2026-06-01T00:00:00+00:00", None).unwrap();
+    index_repo(
+        &repo,
+        &SynapseConfig::default(),
+        &store,
+        true,
+        false,
+        "2026-06-01T00:00:00+00:00",
+        None,
+    )
+    .unwrap();
 
     let refs = store.symbol_references("Widget").unwrap();
     assert!(
@@ -1100,7 +1141,16 @@ fn reference_ambiguous_name_links_all_candidates() {
 
     let repo = Repo { root: tmp.clone() };
     let store = MemoryGraphStore::new();
-    index_repo(&repo, &SynapseConfig::default(), &store, true, false, "2026-06-01T00:00:00+00:00", None).unwrap();
+    index_repo(
+        &repo,
+        &SynapseConfig::default(),
+        &store,
+        true,
+        false,
+        "2026-06-01T00:00:00+00:00",
+        None,
+    )
+    .unwrap();
 
     let refs = store.symbol_references("Foo").unwrap();
     // Both declarations live in their own files; the caller references the name
@@ -1135,11 +1185,23 @@ fn reference_local_variable_creates_no_edge() {
 
     let repo = Repo { root: tmp.clone() };
     let store = MemoryGraphStore::new();
-    index_repo(&repo, &SynapseConfig::default(), &store, true, false, "2026-06-01T00:00:00+00:00", None).unwrap();
+    index_repo(
+        &repo,
+        &SynapseConfig::default(),
+        &store,
+        true,
+        false,
+        "2026-06-01T00:00:00+00:00",
+        None,
+    )
+    .unwrap();
 
     // `total` is never declared as a symbol, so it must resolve to no edge.
     let refs = store.symbol_references("total").unwrap();
-    assert!(refs.is_empty(), "local `total` must not be a reference target: {refs:?}");
+    assert!(
+        refs.is_empty(),
+        "local `total` must not be a reference target: {refs:?}"
+    );
 
     let _ = std::fs::remove_dir_all(&tmp);
 }
@@ -1217,4 +1279,3 @@ fn explore_docker_args_in_memory_skips_mount() {
     // READ_ONLY is unsupported with in-memory, so it must not be set.
     assert!(!joined.contains("READ_ONLY"));
 }
-