From db387a292eebdd834729323bdf6f182cbd137b2e Mon Sep 17 00:00:00 2001
From: Martin Odersky <odersky@gmail.com>
Date: Wed, 8 Feb 2017 18:34:16 +1100
Subject: Improvement to REPL test

In case of difference, dump transcript to file for easier comparisons.
---
 compiler/test/dotty/tools/dotc/repl/TestREPL.scala | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'compiler/test/dotty/tools')

diff --git a/compiler/test/dotty/tools/dotc/repl/TestREPL.scala b/compiler/test/dotty/tools/dotc/repl/TestREPL.scala
index 131a88ab1..44523aae9 100644
--- a/compiler/test/dotty/tools/dotc/repl/TestREPL.scala
+++ b/compiler/test/dotty/tools/dotc/repl/TestREPL.scala
@@ -58,8 +58,11 @@ class TestREPL(script: String) extends REPL {
     val printed = out.toString
     val transcript = printed.drop(printed.indexOf(config.prompt))
     if (transcript.toString.lines.toList != script.lines.toList) {
-      println("input differs from transcript:")
+      println("input differs from transcript (copy is repl.transcript):")
       println(transcript)
+      val s = new PrintStream("repl.transcript")
+      s.print(transcript)
+      s.close()
       assert(false)
     }
   }
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