Ensure assert_received still produces valid exceptions, closes #9799

Author: josevalim

lib/ex_unit/lib/ex_unit/formatter.ex

@@ -338,7 +338,7 @@ defmodule ExUnit.Formatter do
             {:match, pins},
             formatter,
             padding_size + 5,
-            width - 5
+            width
           )
 
         [

lib/ex_unit/test/ex_unit/assertions_test.exs

@@ -375,6 +375,7 @@ defmodule ExUnit.AssertionsTest do
 
         "assert_received({:status, ^status, ^status})" = Macro.to_string(error.expr)
         "{:status, ^status, ^status}" = Macro.to_string(error.left)
+        "\n\nAssertion failed" <> _ = Exception.message(error)
     end
   end