diff --git a/src/lib.rs b/src/lib.rs
index 7b3fa4f..2adc9ca 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -197,12 +197,18 @@ mod tests {
             b.push(2);
             b.push(3);
             b.push(4);
+            b.push(5);
+            b.push(6);
+            b.push(7);
 
             let mut iter = b.iter();
             assert_eq!(&1, iter.next().unwrap());
-            assert_eq!(&4, iter.next_back().unwrap());
+            assert_eq!(&7, iter.next_back().unwrap());
             assert_eq!(&2, iter.next().unwrap());
             assert_eq!(&3, iter.next().unwrap());
+            assert_eq!(&6, iter.next_back().unwrap());
+            assert_eq!(&5, iter.next_back().unwrap());
+            assert_eq!(&4, iter.next().unwrap());
             assert_eq!(None, iter.next());
         }
 
diff --git a/src/ringbuffer_trait.rs b/src/ringbuffer_trait.rs
index 877ea81..c31e392 100644
--- a/src/ringbuffer_trait.rs
+++ b/src/ringbuffer_trait.rs
@@ -196,8 +196,8 @@ pub trait RingBufferExt<T>:
 
 mod iter {
     use crate::{RingBufferExt, RingBufferRead};
-    use core::marker::PhantomData;
     use core::iter::FusedIterator;
+    use core::marker::PhantomData;
 
     /// RingBufferIterator holds a reference to a `RingBufferExt` and iterates over it. `index` is the
     /// current iterator position.
@@ -239,9 +239,9 @@ mod iter {
         }
     }
 
-    impl<'rb, T: 'rb, RB: RingBufferExt<T>> FusedIterator for RingBufferIterator<'rb, T, RB> { }
+    impl<'rb, T: 'rb, RB: RingBufferExt<T>> FusedIterator for RingBufferIterator<'rb, T, RB> {}
 
-    impl<'rb, T: 'rb, RB: RingBufferExt<T>> ExactSizeIterator for RingBufferIterator<'rb, T, RB> { }
+    impl<'rb, T: 'rb, RB: RingBufferExt<T>> ExactSizeIterator for RingBufferIterator<'rb, T, RB> {}
 
     impl<'rb, T: 'rb, RB: RingBufferExt<T>> DoubleEndedIterator for RingBufferIterator<'rb, T, RB> {
         #[inline]