From 3482e1c4534a2cb6d1897fac8f692ab60fbaa979 Mon Sep 17 00:00:00 2001
From: John Gallagher <jgallagher@bignerdranch.com>
Date: Tue, 15 Dec 2015 13:39:47 -0500
Subject: [PATCH] Add unit test confirming write_all to a Blob fails if given
 too much data.

---
 src/blob.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/blob.rs b/src/blob.rs
index 520280e..e8e7851 100644
--- a/src/blob.rs
+++ b/src/blob.rs
@@ -289,6 +289,11 @@ mod test {
         assert!(blob.seek(SeekFrom::Current(-20)).is_err());
         assert!(blob.seek(SeekFrom::End(0)).is_ok());
         assert!(blob.seek(SeekFrom::Current(1)).is_err());
+
+        // write_all should detect when we return Ok(0) because there is no space left,
+        // and return a write error
+        blob.reopen(rowid).unwrap();
+        assert!(blob.write_all(b"0123456789x").is_err());
     }
 
     #[test]