From 00803d619c2713e7e8c6514ef900930cfa3d028f Mon Sep 17 00:00:00 2001
From: Akanksha Mahajan <akankshamahajan@fb.com>
Date: Thu, 15 Apr 2021 20:17:53 -0700
Subject: [PATCH] Fix flaky failure in
 DBSSTest.DBWithSstFileManagerForBlobFilesWithGC (#8196)

Summary:
Updated the test to wait until all trash files are deleted by
SSTFileManager in the background. Since deletion runs in background so
number of files deleted might not always be as expected.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/8196

Reviewed By: jay-zhuang

Differential Revision: D27812273

Pulled By: akankshamahajan15

fbshipit-source-id: d3ace1db34f91254b52fa455e09844d02801f58e
---
 db/db_sst_test.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/db/db_sst_test.cc b/db/db_sst_test.cc
index 07109c663..640b4f5a2 100644
--- a/db/db_sst_test.cc
+++ b/db/db_sst_test.cc
@@ -561,6 +561,7 @@ TEST_F(DBSSTTest, DBWithSstFileManagerForBlobFilesWithGC) {
   constexpr Slice* end = nullptr;
 
   ASSERT_OK(db_->CompactRange(CompactRangeOptions(), begin, end));
+  sfm->WaitForEmptyTrash();
 
   ASSERT_EQ(Get(first_key), first_value);
   ASSERT_EQ(Get(second_key), second_value);
@@ -593,6 +594,7 @@ TEST_F(DBSSTTest, DBWithSstFileManagerForBlobFilesWithGC) {
 
   Close();
   ASSERT_OK(DestroyDB(dbname_, options));
+  sfm->WaitForEmptyTrash();
   ASSERT_EQ(files_deleted, 5);
   ASSERT_EQ(files_scheduled_to_delete, 5);