From 487e085264de240c464d0a74edf0d4db26d2cffa Mon Sep 17 00:00:00 2001
From: Mike McCandless <mikemccand@apache.org>
Date: Sat, 22 Apr 2017 18:45:27 -0400
Subject: [PATCH] don't allow ExtrasFS for this test case

---
 .../core/src/test/org/apache/lucene/store/TestDirectory.java  | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lucene/core/src/test/org/apache/lucene/store/TestDirectory.java b/lucene/core/src/test/org/apache/lucene/store/TestDirectory.java
index d3489ad7fd9..23c1bcdd6fd 100644
--- a/lucene/core/src/test/org/apache/lucene/store/TestDirectory.java
+++ b/lucene/core/src/test/org/apache/lucene/store/TestDirectory.java
@@ -14,8 +14,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.lucene.store;
 
+package org.apache.lucene.store;
 
 import java.io.IOException;
 import java.nio.file.Files;
@@ -26,6 +26,7 @@ import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
 
+import org.apache.lucene.mockfile.ExtrasFS;
 import org.apache.lucene.util.LuceneTestCase;
 
 public class TestDirectory extends LuceneTestCase {
@@ -142,6 +143,7 @@ public class TestDirectory extends LuceneTestCase {
 
   public void testListAll() throws Throwable {
     Path dir = createTempDir("testdir");
+    assumeFalse("this test does not expect extra files", dir.getFileSystem().provider() instanceof ExtrasFS);
     Path file1 = Files.createFile(dir.resolve("tempfile1"));
     Path file2 = Files.createFile(dir.resolve("tempfile2"));
     Set<String> files = new HashSet<>(Arrays.asList(FSDirectory.listAll(dir)));