From fbe398dfa2e3a66ae19c8c93cb4827607e420a81 Mon Sep 17 00:00:00 2001
From: Paul Masurel <paul.masurel@gmail.com>
Date: Tue, 22 Jan 2019 08:18:32 +0900
Subject: [PATCH] Added a broken unit test

---
 src/indexer/merger.rs | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/src/indexer/merger.rs b/src/indexer/merger.rs
index 5c7b18d10..b3ccda2ed 100644
--- a/src/indexer/merger.rs
+++ b/src/indexer/merger.rs
@@ -1255,6 +1255,36 @@ mod tests {
         }
     }
 
+
+    use schema::INT_INDEXED;
+    #[test]
+    fn test_bug_merge() {
+        let mut schema_builder = schema::Schema::builder();
+        let int_field = schema_builder.add_u64_field("intvals", INT_INDEXED);
+        let index = Index::create_in_ram(schema_builder.build());
+        let mut index_writer = index.writer_with_num_threads(1, 3_000_000).unwrap();
+        index_writer.add_document(doc!(int_field => 1u64));
+        index_writer.commit().expect("commit failed");
+        index_writer.add_document(doc!(int_field => 1u64));
+        index_writer.commit().expect("commit failed");
+        index.load_searchers().unwrap();
+        let searcher = index.searcher();
+        assert_eq!(searcher.num_docs(), 2);
+        index_writer.delete_term(Term::from_field_u64(int_field, 1));
+        let segment_ids = index
+            .searchable_segment_ids()
+            .expect("Searchable segments failed.");
+        index_writer
+            .merge(&segment_ids)
+            .expect("Failed to initiate merge")
+            .wait()
+            .expect("Merging failed");
+        index.load_searchers().unwrap();
+        // commit has not been called yet. The document should still be
+        // there.
+        assert_eq!(index.searcher().num_docs(), 2);
+    }
+
     #[test]
     fn test_merge_multivalued_int_fields_all_deleted() {
         let mut schema_builder = schema::Schema::builder();