From 0c05928e14e5ee2ae03566d7bb51e1bfd5c0f281 Mon Sep 17 00:00:00 2001
From: Benjamin Naecker <ben@oxide.computer>
Date: Thu, 29 Aug 2024 01:13:04 +0000
Subject: [PATCH] Histogram adds a leftmost bin

---
 oximeter/types/src/histogram.rs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/oximeter/types/src/histogram.rs b/oximeter/types/src/histogram.rs
index c91ab9f966..2507f2f5c6 100644
--- a/oximeter/types/src/histogram.rs
+++ b/oximeter/types/src/histogram.rs
@@ -1842,13 +1842,14 @@ mod tests {
     #[test]
     fn test_log_bins_u8() {
         let (bins, _) = Histogram::<u8>::power_of_two().bins_and_counts();
-        assert_eq!(bins, [1, 2, 4, 8, 16, 32, 64, 128],);
+        assert_eq!(bins, [0, 1, 2, 4, 8, 16, 32, 64, 128],);
     }
 
     #[test]
     fn test_log_bins_u64() {
         let (bins, _) = Histogram::<u64>::power_of_two().bins_and_counts();
-        for (i, bin) in bins.iter().enumerate() {
+        assert_eq!(bins[0], 0);
+        for (i, bin) in bins.iter().skip(1).enumerate() {
             assert_eq!(*bin, 1u64 << i);
         }
     }