From 147e01b2517c8d9ad1d758acafe48e05ea0de79d Mon Sep 17 00:00:00 2001
From: anand76 <anand76@devvm1373.frc2.facebook.com>
Date: Mon, 18 Nov 2019 09:35:37 -0800
Subject: [PATCH] Fix a test failure on systems that don't have Snappy
 compression libraries (#6038)

Summary:
The ParallelIO/DBBasicTestWithParallelIO.MultiGet/11 test fails if Snappy compression library is not installed, since RocksDB defaults to Snappy if none is specified. So dynamically determine the supported compression types and pick the first one.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6038

Differential Revision: D18532370

Pulled By: anand1976

fbshipit-source-id: a0a735114d1f8892ea09f7c4af8688d7bcc5b075
---
 db/db_basic_test.cc | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/db/db_basic_test.cc b/db/db_basic_test.cc
index 84111aec427..46bfaaec2bd 100644
--- a/db/db_basic_test.cc
+++ b/db/db_basic_test.cc
@@ -1663,6 +1663,19 @@ class DBBasicTestWithParallelIO
     Options options = CurrentOptions();
     Random rnd(301);
     BlockBasedTableOptions table_options;
+
+    if (compression_enabled_) {
+      std::vector<CompressionType> compression_types;
+      compression_types = GetSupportedCompressions();
+      // Not every platform may have compression libraries available, so
+      // dynamically pick based on what's available
+      if (compression_types.size() == 0) {
+        compression_enabled_ = false;
+      } else {
+        options.compression = compression_types[0];
+      }
+    }
+
     table_options.block_cache = uncompressed_cache_;
     if (table_options.block_cache == nullptr) {
       table_options.no_block_cache = true;