From b2b1edc4dccc49c2c018a29f06949f0f484d8161 Mon Sep 17 00:00:00 2001
From: Pierre-Henri Symoneaux <pierre-henri.symoneaux@nokia.com>
Date: Mon, 5 Jun 2017 22:23:26 +0200
Subject: Improving coverage, just for testing

---
 src/utils.rs | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'src')

diff --git a/src/utils.rs b/src/utils.rs
index c00b2d7..a9da33b 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -128,4 +128,11 @@ mod tests {
         print_align(&mut out, Alignment::CENTER, "foo", '*', 1, false).unwrap();
         assert_eq!(out.as_string(), "foo");
     }
+
+    #[test]
+    fn utf8_error() {
+        let mut out = StringWriter::new();
+        let res = out.write_all(&vec![0, 255]);
+        assert!(res.is_err());
+    }
 }
-- 
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