diff --git a/signer/src/testing/transaction_signer.rs b/signer/src/testing/transaction_signer.rs
index b53b38f4..d4fb5a2a 100644
--- a/signer/src/testing/transaction_signer.rs
+++ b/signer/src/testing/transaction_signer.rs
@@ -93,8 +93,12 @@ where
     C: Context,
 {
     /// Wait for `expected` instances of the given event `msg`, timing out after `timeout`.
-    pub async fn wait_for_events(&mut self, msg: TxSignerEvent, expected: u16, timeout: Duration) -> Result<(), Elapsed> {
-
+    pub async fn wait_for_events(
+        &mut self,
+        msg: TxSignerEvent,
+        expected: u16,
+        timeout: Duration,
+    ) -> Result<(), Elapsed> {
         let future = async {
             let mut n = 0;
             loop {
@@ -112,8 +116,7 @@ where
             }
         };
 
-        tokio::time::timeout(timeout, future)
-            .await
+        tokio::time::timeout(timeout, future).await
     }
 }
 
@@ -326,7 +329,8 @@ where
         // Wait for the expected number of decisions to be received by each signer.
         for handle in event_loop_handles.iter_mut() {
             let msg = TxSignerEvent::ReceivedDepositDecision;
-            handle.wait_for_events(msg, num_expected_decisions, Duration::from_secs(10))
+            handle
+                .wait_for_events(msg, num_expected_decisions, Duration::from_secs(10))
                 .await
                 .expect("timed out waiting for events");
         }
diff --git a/signer/src/transaction_signer.rs b/signer/src/transaction_signer.rs
index cfd3aa75..01f2926d 100644
--- a/signer/src/transaction_signer.rs
+++ b/signer/src/transaction_signer.rs
@@ -842,8 +842,13 @@ mod tests {
     use crate::testing::context::*;
 
     fn test_environment() -> testing::transaction_signer::TestEnvironment<
-        TestContext<SharedStore, WrappedMock<MockBitcoinInteract>, WrappedMock<MockStacksInteract>, WrappedMock<MockEmilyInteract>,
-    >> {
+        TestContext<
+            SharedStore,
+            WrappedMock<MockBitcoinInteract>,
+            WrappedMock<MockStacksInteract>,
+            WrappedMock<MockEmilyInteract>,
+        >,
+    > {
         let test_model_parameters = testing::storage::model::Params {
             num_bitcoin_blocks: 20,
             num_stacks_blocks_per_bitcoin_block: 3,
diff --git a/signer/tests/integration/transaction_signer.rs b/signer/tests/integration/transaction_signer.rs
index 12937461..d61dc54a 100644
--- a/signer/tests/integration/transaction_signer.rs
+++ b/signer/tests/integration/transaction_signer.rs
@@ -15,7 +15,12 @@ async fn test_environment(
     mut signer_connections: Vec<PgStore>,
     signing_threshold: u32,
 ) -> TestEnvironment<
-    TestContext<PgStore, WrappedMock<MockBitcoinInteract>, WrappedMock<MockStacksInteract>, WrappedMock<MockEmilyInteract>>,
+    TestContext<
+        PgStore,
+        WrappedMock<MockBitcoinInteract>,
+        WrappedMock<MockStacksInteract>,
+        WrappedMock<MockEmilyInteract>,
+    >,
 > {
     let context_window = 3;