From 100a783ab26c905b3291c4ab4fd0b9140be226b3 Mon Sep 17 00:00:00 2001
From: Michael McCandless <mikemccand@apache.org>
Date: Tue, 15 Sep 2015 01:19:20 +0000
Subject: [PATCH] LUCENE-6804: fix test bug, to properly handle tragic merge
 exceptions

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1703082 13f79535-47bb-0310-9956-ffa450edef68
---
 .../lucene/index/TestIndexWriterOutOfFileDescriptors.java | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/lucene/core/src/test/org/apache/lucene/index/TestIndexWriterOutOfFileDescriptors.java b/lucene/core/src/test/org/apache/lucene/index/TestIndexWriterOutOfFileDescriptors.java
index f180b58954c..30aac07a31e 100644
--- a/lucene/core/src/test/org/apache/lucene/index/TestIndexWriterOutOfFileDescriptors.java
+++ b/lucene/core/src/test/org/apache/lucene/index/TestIndexWriterOutOfFileDescriptors.java
@@ -84,7 +84,13 @@ public class TestIndexWriterOutOfFileDescriptors extends LuceneTestCase {
           w.addDocument(docs.nextDoc());
         }
         dir.setRandomIOExceptionRateOnOpen(0.0);
-        w.close();
+        if (ms instanceof ConcurrentMergeScheduler) {
+          ((ConcurrentMergeScheduler) ms).sync();
+        }
+        // If exc hit CMS then writer will be tragically closed:
+        if (w.getTragicException() == null) {
+          w.close();
+        }
         w = null;
 
         // NOTE: This is O(N^2)!  Only enable for temporary debugging: