Relax verification condition of DBTest.SuggestCompactRangeTest

Summary: Verifiction condition of DBTest.SuggestCompactRangeTest is too strict. Based on key distribution, we might have more small files in last level. Not check number of files in the last level.

Test Plan: Run DBTest.SuggestCompactRangeTest with both of jemalloc on and off.

Reviewers: rven, IslamAbdelRahman, yhchiang, kradhakrishnan, igor, anthony

Reviewed By: anthony

Subscribers: leveldb, dhruba

Differential Revision: https://reviews.facebook.net/D51501

db/db_test.cc

@@ -8683,10 +8683,12 @@ TEST_F(DBTest, SuggestCompactRangeTest) {
     dbfull()->TEST_WaitForCompact();
   }
 
-  ASSERT_EQ("0,0,13", FilesPerLevel(0));
+  // All files are compacted
+  ASSERT_EQ(0, NumTableFilesAtLevel(0));
+  ASSERT_EQ(0, NumTableFilesAtLevel(1));
 
   GenerateNewRandomFile(&rnd);
-  ASSERT_EQ("1,0,13", FilesPerLevel(0));
+  ASSERT_EQ(1, NumTableFilesAtLevel(0));
 
   // nonoverlapping with the file on level 0
   Slice start("a"), end("b");
@@ -8694,7 +8696,7 @@ TEST_F(DBTest, SuggestCompactRangeTest) {
   dbfull()->TEST_WaitForCompact();
 
   // should not compact the level 0 file
-  ASSERT_EQ("1,0,13", FilesPerLevel(0));
+  ASSERT_EQ(1, NumTableFilesAtLevel(0));
 
   start = Slice("j");
   end = Slice("m");
@@ -8704,7 +8706,8 @@ TEST_F(DBTest, SuggestCompactRangeTest) {
       options.compaction_filter_factory.get()));
 
   // now it should compact the level 0 file
-  ASSERT_EQ("0,1,13", FilesPerLevel(0));
+  ASSERT_EQ(0, NumTableFilesAtLevel(0));
+  ASSERT_EQ(1, NumTableFilesAtLevel(1));
 }
 
 TEST_F(DBTest, PromoteL0) {