diff --git a/members/libpt-bintols/tests/split_numbers.rs b/members/libpt-bintols/tests/split_numbers.rs
index 2ee6a13..3f461a3 100644
--- a/members/libpt-bintols/tests/split_numbers.rs
+++ b/members/libpt-bintols/tests/split_numbers.rs
@@ -2,16 +2,25 @@ use libpt_bintols::split_numbers::*;
 
 #[test]
 fn split_u128() {
-    let source = [16, 255, 256, 0, u128::MAX, u64::MAX as u128];
+    let source = [
+        16,
+        255,
+        256,
+        0,
+        u128::MAX,
+        u64::MAX as u128,
+        u64::MAX as u128 + 1,
+    ];
     let correct = [
         vec![16],
         vec![255],
-        vec![255, 1],
+        vec![1, 0],
         vec![0],
         vec![
             255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
         ],
         vec![255, 255, 255, 255, 255, 255, 255, 255],
+        vec![1, 0, 0, 0, 0, 0, 0, 0, 0],
     ];
     for (i, n) in source.iter().enumerate() {
         assert_eq!(unsigned_to_vec(*n), correct[i]);
@@ -20,14 +29,25 @@ fn split_u128() {
 
 #[test]
 fn split_u64() {
-    let source = [16, 255, 256, 0, u64::MAX, u32::MAX as u64];
+    let source = [
+        16,
+        255,
+        256,
+        0,
+        u64::MAX,
+        u32::MAX as u64,
+        0b1_00000001,
+        0b10011011_10110101_11110000_00110011,
+    ];
     let correct = [
         vec![16],
         vec![255],
-        vec![1, 255],
+        vec![1, 0],
         vec![0],
         vec![255, 255, 255, 255, 255, 255, 255, 255],
         vec![255, 255, 255, 255],
+        vec![1, 1],
+        vec![0b10011011, 0b10110101, 0b11110000, 0b00110011],
     ];
     for (i, n) in source.iter().enumerate() {
         assert_eq!(unsigned_to_vec(*n), correct[i]);