Use the stringify macro to print out the mattern in assert_match

1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib.rs b/src/lib.rs
index d0ba1de..ba06cb2 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -472,7 +472,7 @@ mod tests {
         ( $x:expr, $p:pat ) => {
             match $x {
                 $p => (),
-                _ => panic!("Expression {} does not match given pattern", $x),
+                _ => panic!("Expression {} does not match pattern {}", $x, stringify!($p)),
             }
         }
     }