diff --git a/src/format.rs b/src/format.rs
index 89c8d36..5658f37 100644
--- a/src/format.rs
+++ b/src/format.rs
@@ -77,7 +77,7 @@ pub fn separated(f: f64, sep: char) -> String {
 mod tests {
     use super::*;
     #[test]
-    fn test_fmt_scientific() {
+    fn test_scientific() {
         for (f, p, s) in vec![
             // Basic
             (1.0, 0, " 1 E+00"),
@@ -102,12 +102,12 @@ mod tests {
             (1.5, 1, " 1.5 E+00"),
             (1.5, 0, " 2 E+00"),
         ] {
-            assert_eq!(fmt_scientific(f, p), s);
+            assert_eq!(scientific(f, p), s);
         }
     }
 
     #[test]
-    fn test_fmt_separated() {
+    fn test_separated() {
         for (f, c, s) in vec![
             (100.0, ',', "100"),
             (100.0, ',', "100"),
@@ -125,12 +125,12 @@ mod tests {
             (1_000_000.123456789, ' ', "1 000 000.123456789"),
             (1_000_000.123456789, ' ', "1 000 000.123456789"),
         ] {
-            assert_eq!(fmt_separated(f, c), s);
+            assert_eq!(separated(f, c), s);
         }
     }
 
     #[test]
-    fn test_fmt_engineering() {
+    fn test_engineering() {
         for (f, c, s) in vec![
             (100.0, 3, " 100.000 E+00"),
             (100.0, 3, " 100.000 E+00"),
@@ -149,7 +149,7 @@ mod tests {
             (1.5, 1, "   1.5 E+00"),
             (1.5, 0, "   2. E+00"),
         ] {
-            assert_eq!(fmt_engineering(f, c), s);
+            assert_eq!(engineering(f, c), s);
         }
     }
 }
diff --git a/src/main.rs b/src/main.rs
index 8c83488..bd46a3e 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -10,7 +10,7 @@ use calc::constants::{CalculatorDisplayMode, CalculatorState, RegisterState};
 use calc::errors::CalculatorResult;
 use calc::Calculator;
 use crossterm::{
-    event::{self, DisableMouseCapture, Event as CEvent, KeyCode, KeyEvent, KeyModifiers},
+    event::{DisableMouseCapture, KeyCode, KeyEvent, KeyModifiers},
     execute,
     terminal::{disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen},
 };
@@ -18,8 +18,7 @@ use io::stdout;
 use std::cmp;
 use std::convert::TryFrom;
 use std::io::Write;
-use std::sync::mpsc;
-use std::thread;
+
 use std::{error::Error, io};
 use tui::{
     backend::CrosstermBackend,
@@ -370,7 +369,7 @@ fn handle_key(app: &mut App, key: KeyEvent) -> CalculatorResult<CalculatorRespon
                 code: KeyCode::Char(c),
                 modifiers: KeyModifiers::SHIFT,
             } => {
-                for c in (c.to_uppercase()) {
+                for c in c.to_uppercase() {
                     app.calculator.take_input(c)?;
                 }
             }
diff --git a/src/util/event.rs b/src/util/event.rs
index 7fa70a4..e0a8b4e 100644
--- a/src/util/event.rs
+++ b/src/util/event.rs
@@ -1,15 +1,11 @@
-use std::io;
 use std::iter;
 use std::sync::mpsc;
-use std::sync::mpsc::{Iter, TryIter};
-use std::sync::{
-    atomic::{AtomicBool, Ordering},
-    Arc,
-};
+use std::sync::mpsc::TryIter;
+
 use std::thread;
 use std::time::{Duration, Instant};
 
-use crossterm::event::{self, Event as CEvent, KeyCode, KeyEvent, KeyModifiers};
+use crossterm::event::{self, Event as CEvent, KeyEvent};
 
 pub enum Event<I> {
     Input(I),
@@ -57,7 +53,12 @@ impl Events {
 
     /// Returns a chain of the next element (blocking) and a TryIter of everything after it.
     /// Useful for reading a single Iterator of all elements once after blocking, so there are not too many UI redraws.
-    pub fn blocking_iter(&self) -> Result<iter::Chain<iter::Once<Event<KeyEvent>>,TryIter<Event<KeyEvent>>>, mpsc::RecvError> {
-        Ok(iter::once(self.rx.recv()?).chain(self.rx.try_iter()).into_iter())
+    pub fn blocking_iter(
+        &self,
+    ) -> Result<iter::Chain<iter::Once<Event<KeyEvent>>, TryIter<Event<KeyEvent>>>, mpsc::RecvError>
+    {
+        Ok(iter::once(self.rx.recv()?)
+            .chain(self.rx.try_iter())
+            .into_iter())
     }
 }