From 3ab9a2de7e870793292752c9dd4bca75ac2c9679 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sun, 11 Oct 2020 00:21:34 +0100
Subject: [PATCH] check start dec

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---
 zcoord/zcoord.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/zcoord/zcoord.rs b/zcoord/zcoord.rs
index 0acdd07f..ad88c882 100644
--- a/zcoord/zcoord.rs
+++ b/zcoord/zcoord.rs
@@ -515,6 +515,8 @@ mod test {
     assert_eq!(format!("{}", &start), "g000000000");
     start.clone_mut()
       .tinc("g001000000");
+    start.clone_mut()
+      .tdec("fvvv000000");
 
     mk("000000000a")
       .tinc("000100000a")
-- 
2.30.2