diff --git a/tests/tinyvec.rs b/tests/tinyvec.rs
index 705ab59..617193a 100644
--- a/tests/tinyvec.rs
+++ b/tests/tinyvec.rs
@@ -65,3 +65,22 @@ fn TinyVec_resize() {
   tv.resize(20, 5);
   assert_eq!(&tv[..], &[5; 20]);
 }
+
+#[test]
+fn TinyVec_from_slice_impl() {
+  let bigger_slice: [u8; 11] = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
+  let tinyvec: TinyVec<[u8; 10]> = TinyVec::Heap((&bigger_slice[..]).into());
+  assert_eq!(TinyVec::from(&bigger_slice[..]), tinyvec);
+
+  let smaller_slice: [u8; 5] = [0, 1, 2, 3, 4];
+  let tinyvec: TinyVec<[u8; 10]> = TinyVec::Inline(ArrayVec::from_array_len(
+    [0, 1, 2, 3, 4, 0, 0, 0, 0, 0],
+    5,
+  ));
+  assert_eq!(TinyVec::from(&smaller_slice[..]), tinyvec);
+
+  let same_size: [u8; 4] = [0, 1, 2, 3];
+  let tinyvec: TinyVec<[u8; 4]> =
+    TinyVec::Inline(ArrayVec::from_array_len(same_size, 4));
+  assert_eq!(TinyVec::from(&same_size[..]), tinyvec);
+}