From 8232c4829dc9f1b740c3d3d3bb7967fab66a7973 Mon Sep 17 00:00:00 2001
From: schaeff <thibaut@schaeff.fr>
Date: Tue, 18 Dec 2018 12:25:53 +0100
Subject: [PATCH] use format to hit display lines

---
 zokrates_core/src/flat_absy/flat_variable.rs | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/zokrates_core/src/flat_absy/flat_variable.rs b/zokrates_core/src/flat_absy/flat_variable.rs
index 0952bc14..2d0f0f92 100644
--- a/zokrates_core/src/flat_absy/flat_variable.rs
+++ b/zokrates_core/src/flat_absy/flat_variable.rs
@@ -73,28 +73,28 @@ mod tests {
 
     #[test]
     fn one() {
-        assert_eq!(FlatVariable::one().to_string(), "~one");
+        assert_eq!(format!("{}", FlatVariable::one()), "~one");
     }
 
     #[test]
     fn public() {
         let v = FlatVariable::public(0);
-        assert_eq!(v.to_string(), "~out_0");
+        assert_eq!(format!("{}", v), "~out_0");
         assert_eq!(format!("{:?}", v), "FlatVariable(id: -1)");
 
         let v = FlatVariable::public(42);
-        assert_eq!(v.to_string(), "~out_42");
+        assert_eq!(format!("{}", v), "~out_42");
         assert_eq!(format!("{:?}", v), "FlatVariable(id: -43)");
     }
 
     #[test]
     fn private() {
         let v = FlatVariable::new(0);
-        assert_eq!(v.to_string(), "_0");
+        assert_eq!(format!("{}", v), "_0");
         assert_eq!(format!("{:?}", v), "FlatVariable(id: 1)");
 
         let v = FlatVariable::new(42);
-        assert_eq!(v.to_string(), "_42");
+        assert_eq!(format!("{}", v), "_42");
         assert_eq!(format!("{:?}", v), "FlatVariable(id: 43)");
     }