Added test for zero

Author: svilen-mihaylov-elastic

rest-api-spec/src/yamlRestTest/resources/rest-api-spec/test/search.highlight/30_max_analyzed_offset.yml

@@ -114,6 +114,20 @@ setup:
         body: {"query" : {"match" : {"field2" : "fox"}}, "highlight" : {"type" : "plain", "fields" : {"field2" : {}}, "max_analyzed_offset": 20}}
   - match: {hits.hits.0.highlight.field2.0: "The quick brown <em>fox</em> went to the forest and saw another fox."}
 
+---
+"Plain highlighter on a field WITH OFFSETS exceeding index.highlight.max_analyzed_offset with max_analyzed_offset=0 should SUCCEED":
+
+  - requires:
+      cluster_features: ["gte_v7.12.0"]
+      reason: max_analyzed_offset query param added in 7.12.0
+
+  - do:
+      search:
+        rest_total_hits_as_int: true
+        index: test1
+        body: {"query" : {"match" : {"field2" : "fox"}}, "highlight" : {"type" : "plain", "fields" : {"field2" : {}}, "max_analyzed_offset": 0}}
+  - match: { hits.hits.0.highlight: null }
+
 ---
 "Plain highlighter on a field WITH OFFSETS exceeding index.highlight.max_analyzed_offset with max_analyzed_offset=1 should SUCCEED":