From 229dc7481ef7c3ca4cdcff65c8c10ef34a18835a Mon Sep 17 00:00:00 2001
From: Benjamin Trent <ben.w.trent@gmail.com>
Date: Wed, 2 Aug 2023 14:10:57 -0400
Subject: [PATCH] Fix randomly failing field info format tests (#12473)

---
 .../apache/lucene/tests/index/BaseFieldInfoFormatTestCase.java  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lucene/test-framework/src/java/org/apache/lucene/tests/index/BaseFieldInfoFormatTestCase.java b/lucene/test-framework/src/java/org/apache/lucene/tests/index/BaseFieldInfoFormatTestCase.java
index 7a054c290c3..b3bd9656171 100644
--- a/lucene/test-framework/src/java/org/apache/lucene/tests/index/BaseFieldInfoFormatTestCase.java
+++ b/lucene/test-framework/src/java/org/apache/lucene/tests/index/BaseFieldInfoFormatTestCase.java
@@ -354,7 +354,7 @@ public abstract class BaseFieldInfoFormatTestCase extends BaseIndexFileFormatTes
       type.setDimensions(dimension, indexDimension, dimensionNumBytes);
     }
 
-    if (r.nextBoolean()) {
+    if (r.nextBoolean() && getVectorsMaxDimensions(fieldName) > 0) {
       int dimension = 1 + r.nextInt(getVectorsMaxDimensions(fieldName));
       VectorSimilarityFunction similarityFunction =
           RandomPicks.randomFrom(r, VectorSimilarityFunction.values());