From 352d85cbe4d3e64e3ac08588a816ae603de736df Mon Sep 17 00:00:00 2001
From: Luca Cavanna <javanna@apache.org>
Date: Tue, 15 Oct 2024 15:05:41 +0200
Subject: [PATCH] Re-enable backwards compatibility tests for version >=10

---
 .../lucene/backward_index/BackwardsCompatibilityTestBase.java  | 3 ---
 .../lucene/backward_index/TestBasicBackwardsCompatibility.java | 2 +-
 2 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/BackwardsCompatibilityTestBase.java b/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/BackwardsCompatibilityTestBase.java
index 2a4bf7916e7..edbed96be75 100644
--- a/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/BackwardsCompatibilityTestBase.java
+++ b/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/BackwardsCompatibilityTestBase.java
@@ -115,9 +115,6 @@ public abstract class BackwardsCompatibilityTestBase extends LuceneTestCase {
    */
   protected BackwardsCompatibilityTestBase(
       @Name("version") Version version, @Name("pattern") String indexPattern) {
-    // TODO: add 10.0.0 bw indices after 10.0.0 has been released, see
-    // https://github.com/apache/lucene/issues/13847
-    assumeTrue("Can only test with 10.0.0 has been released", version.major < 10);
     this.version = version;
     this.indexPattern = indexPattern;
   }
diff --git a/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/TestBasicBackwardsCompatibility.java b/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/TestBasicBackwardsCompatibility.java
index e8137bda8d8..262567f9f76 100644
--- a/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/TestBasicBackwardsCompatibility.java
+++ b/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/TestBasicBackwardsCompatibility.java
@@ -832,7 +832,7 @@ public class TestBasicBackwardsCompatibility extends BackwardsCompatibilityTestB
           expectThrows(IllegalArgumentException.class, () -> TestUtil.addIndexesSlowly(w, reader));
       assertEquals(
           e.getMessage(),
-          "Cannot merge a segment that has been created with major version 9 into this index which has been created by major version 10");
+          "Cannot merge a segment that has been created with major version 10 into this index which has been created by major version 11");
       w.close();
       targetDir2.close();