Added tests for the Lucene query string parameters. (opensearch-proje…

…ct#688)

Signed-off-by: dblock <[email protected]>

tests/default/indices/explain.yaml

@@ -49,3 +49,32 @@ chapters:
             title: Drive
     response:
       status: 200
+  - synopsis: Explain the score using the Lucene query string syntax in the request body.
+    path: /{index}/_explain/{id}
+    method: POST
+    parameters:
+      index: movies
+      id: movie2
+    request:
+      payload:
+        query:
+          query_string:
+            default_field: title
+            query: Drive
+            analyzer: english
+    response:
+      status: 200
+  - synopsis: Explain the score using the Lucene query string syntax in parameters.
+    path: /{index}/_explain/{id}
+    method: GET
+    parameters:
+      index: movies
+      id: movie2
+      q: Drive
+      df: title
+      lenient: true
+      analyzer: english
+      default_operator: and
+      analyze_wildcard: true
+    response:
+      status: 200