From c437fc462a7cc2e1ca213655a9aeaeeea8bafece Mon Sep 17 00:00:00 2001
From: Tim Holy <tim.holy@gmail.com>
Date: Wed, 12 Jul 2017 03:29:43 -0500
Subject: [PATCH] Better failure diagnostics for error paths in replutil tests

---
 test/replutil.jl | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/test/replutil.jl b/test/replutil.jl
index 9f4d30aa120a3..39451b44c05c3 100644
--- a/test/replutil.jl
+++ b/test/replutil.jl
@@ -182,13 +182,14 @@ macro except_str(expr, err_type)
 end
 
 macro except_strbt(expr, err_type)
+    errmsg = "expected failure, but no exception thrown for $expr"
     return quote
         let err = nothing
             try
                 $(esc(expr))
             catch err
             end
-            err === nothing && error("expected failure, but no exception thrown")
+            err === nothing && error($errmsg)
             @test typeof(err) === $(esc(err_type))
             buf = IOBuffer()
             showerror(buf, err, catch_backtrace())