rocksdb: Replace ASSERT* with EXPECT* in functions that does not return void value

Summary:
gtest does not use exceptions to fail a unit test by design, and `ASSERT*`s are implemented using `return`. As a consequence we cannot use `ASSERT*` in a function that does not return `void` value ([[ https://code.google.com/p/googletest/wiki/AdvancedGuide#Assertion_Placement | 1]]), and have to fix our existing code. This diff does this in a generic way, with no manual changes.

In order to detect all existing `ASSERT*` that are used in functions that doesn't return void value, I change the code to generate compile errors for such cases.

In `util/testharness.h` I defined `EXPECT*` assertions, the same way as `ASSERT*`, and redefined `ASSERT*` to return `void`. Then executed:

```lang=bash
% USE_CLANG=1 make all -j55 -k 2> build.log
% perl -naF: -e 'print "-- -number=".$F[1]." ".$F[0]."\n" if  /: error:/' \
build.log | xargs -L 1 perl -spi -e 's/ASSERT/EXPECT/g if $. == $number'
% make format
```
After that I reverted back change to `ASSERT*` in `util/testharness.h`. But preserved introduced `EXPECT*`, which is the same as `ASSERT*`. This will be deleted once switched to gtest.

This diff is independent and contains manual changes only in `util/testharness.h`.

Test Plan:
Make sure all tests are passing.
```lang=bash
% USE_CLANG=1 make check
```

Reviewers: igor, lgalanis, sdong, yufei.zhu, rven, meyering

Reviewed By: meyering

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D33333

db/column_family_test.cc

@@ -115,7 +115,7 @@ class ColumnFamilyTest {
 
   int GetProperty(int cf, std::string property) {
     std::string value;
-    ASSERT_TRUE(dbfull()->GetProperty(handles_[cf], property, &value));
+    EXPECT_TRUE(dbfull()->GetProperty(handles_[cf], property, &value));
     return std::stoi(value);
   }
 
@@ -274,7 +274,7 @@ class ColumnFamilyTest {
         break;
       }
     }
-    ASSERT_OK(s);
+    EXPECT_OK(s);
     for (const auto& wal : wal_files) {
       if (wal->Type() == kAliveLogFile) {
         ++ret;

db/compaction_job_test.cc

@@ -33,7 +33,7 @@ class CompactionJobTest {
                                  &write_controller_)),
         shutting_down_(false),
         mock_table_factory_(new mock::MockTableFactory()) {
-    ASSERT_OK(env_->CreateDirIfMissing(dbname_));
+    EXPECT_OK(env_->CreateDirIfMissing(dbname_));
     db_options_.db_paths.emplace_back(dbname_,
                                       std::numeric_limits<uint64_t>::max());
     NewDB();
@@ -41,8 +41,7 @@ class CompactionJobTest {
     cf_options_.table_factory = mock_table_factory_;
     column_families.emplace_back(kDefaultColumnFamilyName, cf_options_);
 
-
-    ASSERT_OK(versions_->Recover(column_families, false));
+    EXPECT_OK(versions_->Recover(column_families, false));
   }
 
   std::string GenerateFileName(uint64_t file_number) {
@@ -82,7 +81,7 @@ class CompactionJobTest {
       }
 
       uint64_t file_number = versions_->NewFileNumber();
-      ASSERT_OK(mock_table_factory_->CreateMockTable(
+      EXPECT_OK(mock_table_factory_->CreateMockTable(
           env_, GenerateFileName(file_number), std::move(contents)));
 
       VersionEdit edit;

db/comparator_db_test.cc

@@ -260,12 +260,12 @@ class ComparatorDBTest {
   ComparatorDBTest() : env_(Env::Default()), db_(nullptr) {
     comparator = BytewiseComparator();
     dbname_ = test::TmpDir() + "/comparator_db_test";
-    ASSERT_OK(DestroyDB(dbname_, last_options_));
+    EXPECT_OK(DestroyDB(dbname_, last_options_));
   }
 
   ~ComparatorDBTest() {
     delete db_;
-    ASSERT_OK(DestroyDB(dbname_, last_options_));
+    EXPECT_OK(DestroyDB(dbname_, last_options_));
     comparator = BytewiseComparator();
   }
 

db/cuckoo_table_db_test.cc

@@ -23,14 +23,14 @@ class CuckooTableDBTest {
  public:
   CuckooTableDBTest() : env_(Env::Default()) {
     dbname_ = test::TmpDir() + "/cuckoo_table_db_test";
-    ASSERT_OK(DestroyDB(dbname_, Options()));
+    EXPECT_OK(DestroyDB(dbname_, Options()));
     db_ = nullptr;
     Reopen();
   }
 
   ~CuckooTableDBTest() {
     delete db_;
-    ASSERT_OK(DestroyDB(dbname_, Options()));
+    EXPECT_OK(DestroyDB(dbname_, Options()));
   }
 
   Options CurrentOptions() {
@@ -83,9 +83,8 @@ class CuckooTableDBTest {
 
   int NumTableFilesAtLevel(int level) {
     std::string property;
-    ASSERT_TRUE(
-        db_->GetProperty("rocksdb.num-files-at-level" + NumberToString(level),
-                         &property));
+    EXPECT_TRUE(db_->GetProperty(
+        "rocksdb.num-files-at-level" + NumberToString(level), &property));
     return atoi(property.c_str());
   }
 

db/db_test.cc

@@ -464,7 +464,7 @@ class DBTest {
     env_->SetBackgroundThreads(1, Env::HIGH);
     dbname_ = test::TmpDir(env_) + "/db_test";
     auto options = CurrentOptions();
-    ASSERT_OK(DestroyDB(dbname_, options));
+    EXPECT_OK(DestroyDB(dbname_, options));
     db_ = nullptr;
     Reopen(options);
   }
@@ -476,7 +476,7 @@ class DBTest {
     options.db_paths.emplace_back(dbname_ + "_2", 0);
     options.db_paths.emplace_back(dbname_ + "_3", 0);
     options.db_paths.emplace_back(dbname_ + "_4", 0);
-    ASSERT_OK(DestroyDB(dbname_, options));
+    EXPECT_OK(DestroyDB(dbname_, options));
     delete env_;
   }
 
@@ -747,7 +747,7 @@ class DBTest {
       const std::vector<std::string>& cfs,
       const std::vector<Options>& options) {
     Close();
-    ASSERT_EQ(cfs.size(), options.size());
+    EXPECT_EQ(cfs.size(), options.size());
     std::vector<ColumnFamilyDescriptor> column_families;
     for (size_t i = 0; i < cfs.size(); ++i) {
       column_families.push_back(ColumnFamilyDescriptor(cfs[i], options[i]));
@@ -861,13 +861,13 @@ class DBTest {
 
   uint64_t GetNumSnapshots() {
     uint64_t int_num;
-    ASSERT_TRUE(dbfull()->GetIntProperty("rocksdb.num-snapshots", &int_num));
+    EXPECT_TRUE(dbfull()->GetIntProperty("rocksdb.num-snapshots", &int_num));
     return int_num;
   }
 
   uint64_t GetTimeOldestSnapshots() {
     uint64_t int_num;
-    ASSERT_TRUE(
+    EXPECT_TRUE(
         dbfull()->GetIntProperty("rocksdb.oldest-snapshot-time", &int_num));
     return int_num;
   }
@@ -890,11 +890,11 @@ class DBTest {
     // Check reverse iteration results are the reverse of forward results
     unsigned int matched = 0;
     for (iter->SeekToLast(); iter->Valid(); iter->Prev()) {
-      ASSERT_LT(matched, forward.size());
-      ASSERT_EQ(IterStatus(iter), forward[forward.size() - matched - 1]);
+      EXPECT_LT(matched, forward.size());
+      EXPECT_EQ(IterStatus(iter), forward[forward.size() - matched - 1]);
       matched++;
     }
-    ASSERT_EQ(matched, forward.size());
+    EXPECT_EQ(matched, forward.size());
 
     delete iter;
     return result;
@@ -958,10 +958,10 @@ class DBTest {
     std::string property;
     if (cf == 0) {
       // default cfd
-      ASSERT_TRUE(db_->GetProperty(
+      EXPECT_TRUE(db_->GetProperty(
           "rocksdb.num-files-at-level" + NumberToString(level), &property));
     } else {
-      ASSERT_TRUE(db_->GetProperty(
+      EXPECT_TRUE(db_->GetProperty(
           handles_[cf], "rocksdb.num-files-at-level" + NumberToString(level),
           &property));
     }
@@ -1137,8 +1137,8 @@ class DBTest {
       const SequenceNumber seq) {
     unique_ptr<TransactionLogIterator> iter;
     Status status = dbfull()->GetUpdatesSince(seq, &iter);
-    ASSERT_OK(status);
-    ASSERT_TRUE(iter->Valid());
+    EXPECT_OK(status);
+    EXPECT_TRUE(iter->Valid());
     return std::move(iter);
   }
 
@@ -3762,8 +3762,8 @@ class KeepFilterFactory : public CompactionFilterFactory {
   virtual std::unique_ptr<CompactionFilter> CreateCompactionFilter(
       const CompactionFilter::Context& context) override {
     if (check_context_) {
-      ASSERT_EQ(expect_full_compaction_.load(), context.is_full_compaction);
-      ASSERT_EQ(expect_manual_compaction_.load(), context.is_manual_compaction);
+      EXPECT_EQ(expect_full_compaction_.load(), context.is_full_compaction);
+      EXPECT_EQ(expect_manual_compaction_.load(), context.is_manual_compaction);
     }
     return std::unique_ptr<CompactionFilter>(new KeepFilter());
   }
@@ -6409,11 +6409,11 @@ TEST(DBTest, CustomComparator) {
    private:
     static int ToNumber(const Slice& x) {
       // Check that there are no extra characters.
-      ASSERT_TRUE(x.size() >= 2 && x[0] == '[' && x[x.size()-1] == ']')
+      EXPECT_TRUE(x.size() >= 2 && x[0] == '[' && x[x.size() - 1] == ']')
           << EscapeString(x);
       int val;
       char ignored;
-      ASSERT_TRUE(sscanf(x.ToString().c_str(), "[%i]%c", &val, &ignored) == 1)
+      EXPECT_TRUE(sscanf(x.ToString().c_str(), "[%i]%c", &val, &ignored) == 1)
           << EscapeString(x);
       return val;
     }
@@ -7652,10 +7652,10 @@ SequenceNumber ReadRecords(
   BatchResult res;
   while (iter->Valid()) {
     res = iter->GetBatch();
-    ASSERT_TRUE(res.sequence > lastSequence);
+    EXPECT_TRUE(res.sequence > lastSequence);
     ++count;
     lastSequence = res.sequence;
-    ASSERT_OK(iter->status());
+    EXPECT_OK(iter->status());
     iter->Next();
   }
   return res.sequence;

db/deletefile_test.cc

@@ -57,7 +57,7 @@ class DeleteFileTest {
 
     DestroyDB(dbname_, options_);
     numlevels_ = 7;
-    ASSERT_OK(ReopenDB(true));
+    EXPECT_OK(ReopenDB(true));
   }
 
   Status ReopenDB(bool create) {

db/fault_injection_test.cc

@@ -174,7 +174,7 @@ class FaultInjectionTestEnv : public EnvWrapper {
                       unique_ptr<Directory>* result) override {
     unique_ptr<Directory> r;
     Status s = target()->NewDirectory(name, &r);
-    ASSERT_OK(s);
+    EXPECT_OK(s);
     if (!s.ok()) {
       return s;
     }
@@ -206,7 +206,7 @@ class FaultInjectionTestEnv : public EnvWrapper {
       fprintf(stderr, "Cannot delete file %s: %s\n", f.c_str(),
               s.ToString().c_str());
     }
-    ASSERT_OK(s);
+    EXPECT_OK(s);
     if (s.ok()) {
       UntrackFile(f);
     }
@@ -450,7 +450,7 @@ class FaultInjectionTest {
     NewDB();
   }
 
-  ~FaultInjectionTest() { ASSERT_OK(TearDown()); }
+  ~FaultInjectionTest() { EXPECT_OK(TearDown()); }
 
   bool ChangeOptions() {
     option_config_++;
@@ -524,7 +524,7 @@ class FaultInjectionTest {
 
     dbname_ = test::TmpDir() + "/fault_test";
 
-    ASSERT_OK(DestroyDB(dbname_, options_));
+    EXPECT_OK(DestroyDB(dbname_, options_));
 
     options_.create_if_missing = true;
     Status s = OpenDB();
@@ -581,7 +581,7 @@ class FaultInjectionTest {
       Value(i, &value_space);
       s = ReadValue(i, &val);
       if (s.ok()) {
-        ASSERT_EQ(value_space, val);
+        EXPECT_EQ(value_space, val);
       }
       if (expected == kValExpectFound) {
         if (!s.ok()) {

db/flush_job_test.cc

@@ -32,7 +32,7 @@ class FlushJobTest {
                                  &write_controller_)),
         shutting_down_(false),
         mock_table_factory_(new mock::MockTableFactory()) {
-    ASSERT_OK(env_->CreateDirIfMissing(dbname_));
+    EXPECT_OK(env_->CreateDirIfMissing(dbname_));
     db_options_.db_paths.emplace_back(dbname_,
                                       std::numeric_limits<uint64_t>::max());
     // TODO(icanadi) Remove this once we mock out VersionSet
@@ -41,7 +41,7 @@ class FlushJobTest {
     cf_options_.table_factory = mock_table_factory_;
     column_families.emplace_back(kDefaultColumnFamilyName, cf_options_);
 
-    ASSERT_OK(versions_->Recover(column_families, false));
+    EXPECT_OK(versions_->Recover(column_families, false));
   }
 
   void NewDB() {

db/listener_test.cc

@@ -39,7 +39,7 @@ class EventListenerTest {
  public:
   EventListenerTest() {
     dbname_ = test::TmpDir() + "/listener_test";
-    ASSERT_OK(DestroyDB(dbname_, Options()));
+    EXPECT_OK(DestroyDB(dbname_, Options()));
     db_ = nullptr;
     Reopen();
   }
@@ -51,7 +51,7 @@ class EventListenerTest {
     options.db_paths.emplace_back(dbname_ + "_2", 0);
     options.db_paths.emplace_back(dbname_ + "_3", 0);
     options.db_paths.emplace_back(dbname_ + "_4", 0);
-    ASSERT_OK(DestroyDB(dbname_, options));
+    EXPECT_OK(DestroyDB(dbname_, options));
   }
 
   void CreateColumnFamilies(const std::vector<std::string>& cfs,
@@ -91,7 +91,7 @@ class EventListenerTest {
       const std::vector<std::string>& cfs,
       const std::vector<const Options*>& options) {
     Close();
-    ASSERT_EQ(cfs.size(), options.size());
+    EXPECT_EQ(cfs.size(), options.size());
     std::vector<ColumnFamilyDescriptor> column_families;
     for (size_t i = 0; i < cfs.size(); ++i) {
       column_families.push_back(ColumnFamilyDescriptor(cfs[i], *options[i]));

db/log_test.cc

@@ -57,7 +57,7 @@ class LogTest {
 
     virtual Status Close() override { return Status::OK(); }
     virtual Status Flush() override {
-      ASSERT_TRUE(reader_contents_.size() <= last_flush_);
+      EXPECT_TRUE(reader_contents_.size() <= last_flush_);
       size_t offset = last_flush_ - reader_contents_.size();
       reader_contents_ = Slice(
           contents_.data() + offset,
@@ -100,7 +100,7 @@ class LogTest {
       returned_partial_(false) { }
 
     virtual Status Read(size_t n, Slice* result, char* scratch) override {
-      ASSERT_TRUE(!returned_partial_) << "must not Read() after eof/error";
+      EXPECT_TRUE(!returned_partial_) << "must not Read() after eof/error";
 
       if (force_error_) {
         if (force_error_position_ >= n) {

db/perf_context_test.cc

@@ -55,7 +55,7 @@ std::shared_ptr<DB> OpenDb(bool read_only = false) {
     } else {
       s = DB::OpenForReadOnly(options, kDbName, &db);
     }
-    ASSERT_OK(s);
+    EXPECT_OK(s);
     return std::shared_ptr<DB>(db);
 }
 

db/plain_table_db_test.cc

@@ -49,14 +49,14 @@ class PlainTableDBTest {
  public:
   PlainTableDBTest() : env_(Env::Default()) {
     dbname_ = test::TmpDir() + "/plain_table_db_test";
-    ASSERT_OK(DestroyDB(dbname_, Options()));
+    EXPECT_OK(DestroyDB(dbname_, Options()));
     db_ = nullptr;
     Reopen();
   }
 
   ~PlainTableDBTest() {
     delete db_;
-    ASSERT_OK(DestroyDB(dbname_, Options()));
+    EXPECT_OK(DestroyDB(dbname_, Options()));
   }
 
   // Return the current option configuration.
@@ -149,9 +149,8 @@ class PlainTableDBTest {
 
   int NumTableFilesAtLevel(int level) {
     std::string property;
-    ASSERT_TRUE(
-        db_->GetProperty("rocksdb.num-files-at-level" + NumberToString(level),
-                         &property));
+    EXPECT_TRUE(db_->GetProperty(
+        "rocksdb.num-files-at-level" + NumberToString(level), &property));
     return atoi(property.c_str());
   }
 
@@ -206,23 +205,23 @@ class TestPlainTableReader : public PlainTableReader {
                          encoding_type, file_size, table_properties),
         expect_bloom_not_match_(expect_bloom_not_match) {
     Status s = MmapDataFile();
-    ASSERT_TRUE(s.ok());
+    EXPECT_TRUE(s.ok());
 
     s = PopulateIndex(const_cast<TableProperties*>(table_properties),
                       bloom_bits_per_key, hash_table_ratio, index_sparseness,
                       2 * 1024 * 1024);
-    ASSERT_TRUE(s.ok());
+    EXPECT_TRUE(s.ok());
 
     TableProperties* props = const_cast<TableProperties*>(table_properties);
     if (store_index_in_file) {
       auto bloom_version_ptr = props->user_collected_properties.find(
           PlainTablePropertyNames::kBloomVersion);
-      ASSERT_TRUE(bloom_version_ptr != props->user_collected_properties.end());
-      ASSERT_EQ(bloom_version_ptr->second, std::string("1"));
+      EXPECT_TRUE(bloom_version_ptr != props->user_collected_properties.end());
+      EXPECT_EQ(bloom_version_ptr->second, std::string("1"));
       if (ioptions.bloom_locality > 0) {
         auto num_blocks_ptr = props->user_collected_properties.find(
             PlainTablePropertyNames::kNumBloomBlocks);
-        ASSERT_TRUE(num_blocks_ptr != props->user_collected_properties.end());
+        EXPECT_TRUE(num_blocks_ptr != props->user_collected_properties.end());
       }
     }
   }
@@ -233,9 +232,9 @@ class TestPlainTableReader : public PlainTableReader {
   virtual bool MatchBloom(uint32_t hash) const override {
     bool ret = PlainTableReader::MatchBloom(hash);
     if (*expect_bloom_not_match_) {
-      ASSERT_TRUE(!ret);
+      EXPECT_TRUE(!ret);
     } else {
-      ASSERT_TRUE(ret);
+      EXPECT_TRUE(ret);
     }
     return ret;
   }
@@ -262,20 +261,20 @@ class TestPlainTableFactory : public PlainTableFactory {
     TableProperties* props = nullptr;
     auto s = ReadTableProperties(file.get(), file_size, kPlainTableMagicNumber,
                                  ioptions.env, ioptions.info_log, &props);
-    ASSERT_TRUE(s.ok());
+    EXPECT_TRUE(s.ok());
 
     if (store_index_in_file_) {
       BlockHandle bloom_block_handle;
       s = FindMetaBlock(file.get(), file_size, kPlainTableMagicNumber,
                         ioptions.env, BloomBlockBuilder::kBloomBlock,
                         &bloom_block_handle);
-      ASSERT_TRUE(s.ok());
+      EXPECT_TRUE(s.ok());
 
       BlockHandle index_block_handle;
       s = FindMetaBlock(
           file.get(), file_size, kPlainTableMagicNumber, ioptions.env,
           PlainTableIndexBuilder::kPlainTableIndexBlock, &index_block_handle);
-      ASSERT_TRUE(s.ok());
+      EXPECT_TRUE(s.ok());
     }
 
     auto& user_props = props->user_collected_properties;

db/prefix_test.cc

@@ -77,11 +77,11 @@ class TestKeyComparator : public Comparator {
       if (key_a->prefix < key_b->prefix) return -1;
       if (key_a->prefix > key_b->prefix) return 1;
     } else {
-      ASSERT_TRUE(key_a->prefix == key_b->prefix);
+      EXPECT_TRUE(key_a->prefix == key_b->prefix);
       // note, both a and b could be prefix only
       if (a.size() != b.size()) {
         // one of them is prefix
-        ASSERT_TRUE(
+        EXPECT_TRUE(
             (a.size() == sizeof(uint64_t) && b.size() == sizeof(TestKey)) ||
             (b.size() == sizeof(uint64_t) && a.size() == sizeof(TestKey)));
         if (a.size() < b.size()) return -1;
@@ -93,7 +93,7 @@ class TestKeyComparator : public Comparator {
         }
 
         // both a and b are whole key
-        ASSERT_TRUE(a.size() == sizeof(TestKey) && b.size() == sizeof(TestKey));
+        EXPECT_TRUE(a.size() == sizeof(TestKey) && b.size() == sizeof(TestKey));
         if (key_a->sorted < key_b->sorted) return -1;
         if (key_a->sorted > key_b->sorted) return 1;
         if (key_a->sorted == key_b->sorted) return 0;
@@ -161,7 +161,7 @@ class PrefixTest {
         FLAGS_memtable_prefix_bloom_huge_page_tlb_size;
 
     Status s = DB::Open(options, kDbName,  &db);
-    ASSERT_OK(s);
+    EXPECT_OK(s);
     return std::shared_ptr<DB>(db);
   }
 

db/wal_manager_test.cc

@@ -86,7 +86,7 @@ class WalManagerTest {
     unique_ptr<TransactionLogIterator> iter;
     Status status = wal_manager_->GetUpdatesSince(
         seq, &iter, TransactionLogIterator::ReadOptions(), versions_.get());
-    ASSERT_OK(status);
+    EXPECT_OK(status);
     return std::move(iter);
   }
 
@@ -182,10 +182,10 @@ int CountRecords(TransactionLogIterator* iter) {
   BatchResult res;
   while (iter->Valid()) {
     res = iter->GetBatch();
-    ASSERT_TRUE(res.sequence > lastSequence);
+    EXPECT_TRUE(res.sequence > lastSequence);
     ++count;
     lastSequence = res.sequence;
-    ASSERT_OK(iter->status());
+    EXPECT_OK(iter->status());
     iter->Next();
   }
   return count;

db/write_batch_test.cc

@@ -42,7 +42,7 @@ static std::string PrintContents(WriteBatch* b) {
   for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
     ParsedInternalKey ikey;
     memset((void *)&ikey, 0, sizeof(ikey));
-    ASSERT_TRUE(ParseInternalKey(iter->key(), &ikey));
+    EXPECT_TRUE(ParseInternalKey(iter->key(), &ikey));
     switch (ikey.type) {
       case kTypeValue:
         state.append("Put(");

table/table_test.cc

@@ -361,12 +361,12 @@ class TableConstructor: public Constructor {
       } else {
         builder->Add(kv.first, kv.second);
       }
-      ASSERT_TRUE(builder->status().ok());
+      EXPECT_TRUE(builder->status().ok());
     }
     Status s = builder->Finish();
-    ASSERT_TRUE(s.ok()) << s.ToString();
+    EXPECT_TRUE(s.ok()) << s.ToString();
 
-    ASSERT_EQ(sink_->contents().size(), builder->FileSize());
+    EXPECT_EQ(sink_->contents().size(), builder->FileSize());
 
     // Open the table
     uniq_id_ = cur_uniq_id_++;
@@ -502,7 +502,7 @@ class DBConstructor: public Constructor {
     for (const auto kv : kv_map) {
       WriteBatch batch;
       batch.Put(kv.first, kv.second);
-      ASSERT_TRUE(db_->Write(WriteOptions(), &batch).ok());
+      EXPECT_TRUE(db_->Write(WriteOptions(), &batch).ok());
     }
     return Status::OK();
   }
@@ -701,7 +701,8 @@ class FixedOrLessPrefixTransform : public SliceTransform {
 class HarnessTest {
  public:
   HarnessTest()
-    : ioptions_(options_), constructor_(nullptr),
+      : ioptions_(options_),
+        constructor_(nullptr),
         write_buffer_(options_.db_write_buffer_size) {}
 
   void Init(const TestArgs& args) {
@@ -793,9 +794,7 @@ class HarnessTest {
     ioptions_ = ImmutableCFOptions(options_);
   }
 
-  ~HarnessTest() {
-    delete constructor_;
-  }
+  ~HarnessTest() { delete constructor_; }
 
   void Add(const std::string& key, const std::string& value) {
     constructor_->Add(key, value);

tools/reduce_levels_test.cc

@@ -59,9 +59,8 @@ public:
 
   int FilesOnLevel(int level) {
     std::string property;
-    ASSERT_TRUE(
-        db_->GetProperty("rocksdb.num-files-at-level" + NumberToString(level),
-                         &property));
+    EXPECT_TRUE(db_->GetProperty(
+        "rocksdb.num-files-at-level" + NumberToString(level), &property));
     return atoi(property.c_str());
   }
 

util/auto_roll_logger_test.cc

@@ -103,7 +103,7 @@ uint64_t AutoRollLoggerTest::RollLogFileByTimeTest(
   uint64_t expected_create_time;
   uint64_t actual_create_time;
   uint64_t total_log_size;
-  ASSERT_OK(env->GetFileSize(kLogFile, &total_log_size));
+  EXPECT_OK(env->GetFileSize(kLogFile, &total_log_size));
   GetFileCreateTime(kLogFile, &expected_create_time);
   logger->SetCallNowMicrosEveryNRecords(0);
 
@@ -111,14 +111,14 @@ uint64_t AutoRollLoggerTest::RollLogFileByTimeTest(
   // to be finished before time.
   for (int i = 0; i < 10; ++i) {
      LogMessage(logger, log_message.c_str());
-     ASSERT_OK(logger->GetStatus());
+     EXPECT_OK(logger->GetStatus());
      // Make sure we always write to the same log file (by
      // checking the create time);
      GetFileCreateTime(kLogFile, &actual_create_time);
 
      // Also make sure the log size is increasing.
-     ASSERT_EQ(expected_create_time, actual_create_time);
-     ASSERT_GT(logger->GetLogFileSize(), total_log_size);
+     EXPECT_EQ(expected_create_time, actual_create_time);
+     EXPECT_GT(logger->GetLogFileSize(), total_log_size);
      total_log_size = logger->GetLogFileSize();
   }
 
@@ -128,8 +128,8 @@ uint64_t AutoRollLoggerTest::RollLogFileByTimeTest(
 
   // At this time, the new log file should be created.
   GetFileCreateTime(kLogFile, &actual_create_time);
-  ASSERT_GT(actual_create_time, expected_create_time);
-  ASSERT_LT(logger->GetLogFileSize(), total_log_size);
+  EXPECT_GT(actual_create_time, expected_create_time);
+  EXPECT_LT(logger->GetLogFileSize(), total_log_size);
   expected_create_time = actual_create_time;
 
   return expected_create_time;

util/ldb_cmd.cc

@@ -195,11 +195,11 @@ bool LDBCommand::ParseIntOption(const map<string, string>& options,
       value = stoi(itr->second);
       return true;
     } catch(const invalid_argument&) {
-      exec_state = LDBCommandExecuteResult::Failed(option +
-                      " has an invalid value.");
+      exec_state =
+          LDBCommandExecuteResult::Failed(option + " has an invalid value.");
     } catch(const out_of_range&) {
-      exec_state = LDBCommandExecuteResult::Failed(option +
-                      " has a value out-of-range.");
+      exec_state = LDBCommandExecuteResult::Failed(
+          option + " has a value out-of-range.");
     }
   }
   return false;
@@ -235,8 +235,8 @@ Options LDBCommand::PrepareOptionsForOpenDB() {
       use_table_options = true;
       table_options.filter_policy.reset(NewBloomFilterPolicy(bits));
     } else {
-      exec_state_ = LDBCommandExecuteResult::Failed(ARG_BLOOM_BITS +
-                      " must be > 0.");
+      exec_state_ =
+          LDBCommandExecuteResult::Failed(ARG_BLOOM_BITS + " must be > 0.");
     }
   }
 
@@ -246,8 +246,8 @@ Options LDBCommand::PrepareOptionsForOpenDB() {
       use_table_options = true;
       table_options.block_size = block_size;
     } else {
-      exec_state_ = LDBCommandExecuteResult::Failed(ARG_BLOCK_SIZE +
-                      " must be > 0.");
+      exec_state_ =
+          LDBCommandExecuteResult::Failed(ARG_BLOCK_SIZE + " must be > 0.");
     }
   }
 
@@ -277,8 +277,8 @@ Options LDBCommand::PrepareOptionsForOpenDB() {
       opt.compression = kLZ4HCCompression;
     } else {
       // Unknown compression.
-      exec_state_ = LDBCommandExecuteResult::Failed(
-                      "Unknown compression level: " + comp);
+      exec_state_ =
+          LDBCommandExecuteResult::Failed("Unknown compression level: " + comp);
     }
   }
 
@@ -309,8 +309,8 @@ Options LDBCommand::PrepareOptionsForOpenDB() {
     if (file_size > 0) {
       opt.target_file_size_base = file_size;
     } else {
-      exec_state_ = LDBCommandExecuteResult::Failed(ARG_FILE_SIZE +
-                      " must be > 0.");
+      exec_state_ =
+          LDBCommandExecuteResult::Failed(ARG_FILE_SIZE + " must be > 0.");
     }
   }
 
@@ -585,8 +585,8 @@ void ManifestDumpCommand::DoCommand() {
     // containing the db for files of the form MANIFEST_[0-9]+
     DIR* d = opendir(db_path_.c_str());
     if (d == nullptr) {
-      exec_state_ = LDBCommandExecuteResult::Failed(
-        db_path_ + " is not a directory");
+      exec_state_ =
+          LDBCommandExecuteResult::Failed(db_path_ + " is not a directory");
       return;
     }
     struct dirent* entry;
@@ -792,8 +792,8 @@ void InternalDumpCommand::DoCommand() {
   ScopedArenaIterator iter(idb->TEST_NewInternalIterator(&arena));
   Status st = iter->status();
   if (!st.ok()) {
-    exec_state_ = LDBCommandExecuteResult::Failed("Iterator error:"
-                                                  + st.ToString());
+    exec_state_ =
+        LDBCommandExecuteResult::Failed("Iterator error:" + st.ToString());
   }
 
   if (has_from_) {
@@ -902,8 +902,8 @@ DBDumperCommand::DBDumperCommand(const vector<string>& params,
       exec_state_ = LDBCommandExecuteResult::Failed(ARG_MAX_KEYS +
                                                     " has an invalid value");
     } catch(const out_of_range&) {
-      exec_state_ = LDBCommandExecuteResult::Failed(ARG_MAX_KEYS +
-                        " has a value out-of-range");
+      exec_state_ = LDBCommandExecuteResult::Failed(
+          ARG_MAX_KEYS + " has a value out-of-range");
     }
   }
   itr = options.find(ARG_COUNT_DELIM);
@@ -961,8 +961,8 @@ void DBDumperCommand::DoCommand() {
   Iterator* iter = db_->NewIterator(ReadOptions());
   Status st = iter->status();
   if (!st.ok()) {
-    exec_state_ = LDBCommandExecuteResult::Failed("Iterator error."
-        + st.ToString());
+    exec_state_ =
+        LDBCommandExecuteResult::Failed("Iterator error." + st.ToString());
   }
 
   if (!null_from_) {
@@ -1165,8 +1165,8 @@ Status ReduceDBLevelsCommand::GetOldNumOfLevels(Options& opt,
 
 void ReduceDBLevelsCommand::DoCommand() {
   if (new_levels_ <= 1) {
-    exec_state_ = LDBCommandExecuteResult::Failed(
-        "Invalid number of levels.\n");
+    exec_state_ =
+        LDBCommandExecuteResult::Failed("Invalid number of levels.\n");
     return;
   }
 
@@ -1320,16 +1320,19 @@ void ChangeCompactionStyleCommand::DoCommand() {
 
     // level 0 should have only 1 file
     if (i == 0 && num_files != 1) {
-      exec_state_ = LDBCommandExecuteResult::Failed("Number of db files at "
-        "level 0 after compaction is " + ToString(num_files) +
-        ", not 1.\n");
+      exec_state_ = LDBCommandExecuteResult::Failed(
+          "Number of db files at "
+          "level 0 after compaction is " +
+          ToString(num_files) + ", not 1.\n");
       return;
     }
     // other levels should have no file
     if (i > 0 && num_files != 0) {
-      exec_state_ = LDBCommandExecuteResult::Failed("Number of db files at "
-        "level " + ToString(i) + " after compaction is " +
-        ToString(num_files) + ", not 0.\n");
+      exec_state_ = LDBCommandExecuteResult::Failed(
+          "Number of db files at "
+          "level " +
+          ToString(i) + " after compaction is " + ToString(num_files) +
+          ", not 0.\n");
       return;
     }
   }
@@ -1459,8 +1462,8 @@ WALDumperCommand::WALDumperCommand(const vector<string>& params,
   print_header_ = IsFlagPresent(flags, ARG_PRINT_HEADER);
   print_values_ = IsFlagPresent(flags, ARG_PRINT_VALUE);
   if (wal_file_.empty()) {
-    exec_state_ = LDBCommandExecuteResult::Failed(
-                    "Argument " + ARG_WAL_FILE + " must be specified.");
+    exec_state_ = LDBCommandExecuteResult::Failed("Argument " + ARG_WAL_FILE +
+                                                  " must be specified.");
   }
 }
 
@@ -1527,16 +1530,16 @@ ApproxSizeCommand::ApproxSizeCommand(const vector<string>& params,
   if (options.find(ARG_FROM) != options.end()) {
     start_key_ = options.find(ARG_FROM)->second;
   } else {
-    exec_state_ = LDBCommandExecuteResult::Failed(ARG_FROM +
-                    " must be specified for approxsize command");
+    exec_state_ = LDBCommandExecuteResult::Failed(
+        ARG_FROM + " must be specified for approxsize command");
     return;
   }
 
   if (options.find(ARG_TO) != options.end()) {
     end_key_ = options.find(ARG_TO)->second;
   } else {
-    exec_state_ = LDBCommandExecuteResult::Failed(ARG_TO +
-                    " must be specified for approxsize command");
+    exec_state_ = LDBCommandExecuteResult::Failed(
+        ARG_TO + " must be specified for approxsize command");
     return;
   }
 
@@ -1659,8 +1662,8 @@ ScanCommand::ScanCommand(const vector<string>& params,
       exec_state_ = LDBCommandExecuteResult::Failed(ARG_MAX_KEYS +
                                                     " has an invalid value");
     } catch(const out_of_range&) {
-      exec_state_ = LDBCommandExecuteResult::Failed(ARG_MAX_KEYS +
-                        " has a value out-of-range");
+      exec_state_ = LDBCommandExecuteResult::Failed(
+          ARG_MAX_KEYS + " has a value out-of-range");
     }
   }
 }

util/slice_transform_test.cc

@@ -54,12 +54,12 @@ class SliceTransformDBTest {
  public:
   SliceTransformDBTest() : env_(Env::Default()), db_(nullptr) {
     dbname_ = test::TmpDir() + "/slice_transform_db_test";
-    ASSERT_OK(DestroyDB(dbname_, last_options_));
+    EXPECT_OK(DestroyDB(dbname_, last_options_));
   }
 
   ~SliceTransformDBTest() {
     delete db_;
-    ASSERT_OK(DestroyDB(dbname_, last_options_));
+    EXPECT_OK(DestroyDB(dbname_, last_options_));
   }
 
   DB* db() { return db_; }

util/testharness.cc

@@ -78,7 +78,7 @@ int RunAllTests() {
 std::string TmpDir(Env* env) {
   std::string dir;
   Status s = env->GetTestDirectory(&dir);
-  ASSERT_TRUE(s.ok()) << s.ToString();
+  EXPECT_TRUE(s.ok()) << s.ToString();
   return dir;
 }
 

util/testharness.h

@@ -170,6 +170,22 @@ class TesterHelper {
 #define ASSERT_LT(a, b) \
   TEST_EXPRESSION_(::rocksdb::test::Tester().IsLt((a), (b)))
 
+#define EXPECT_TRUE(c) TEST_EXPRESSION_(::rocksdb::test::Tester().Is((c), #c))
+#define EXPECT_OK(s) TEST_EXPRESSION_(::rocksdb::test::Tester().IsOk((s)))
+#define EXPECT_NOK(s) TEST_EXPRESSION_(::rocksdb::test::Tester().IsNotOk((s)))
+#define EXPECT_EQ(a, b) \
+  TEST_EXPRESSION_(::rocksdb::test::Tester().IsEq((a), (b)))
+#define EXPECT_NE(a, b) \
+  TEST_EXPRESSION_(::rocksdb::test::Tester().IsNe((a), (b)))
+#define EXPECT_GE(a, b) \
+  TEST_EXPRESSION_(::rocksdb::test::Tester().IsGe((a), (b)))
+#define EXPECT_GT(a, b) \
+  TEST_EXPRESSION_(::rocksdb::test::Tester().IsGt((a), (b)))
+#define EXPECT_LE(a, b) \
+  TEST_EXPRESSION_(::rocksdb::test::Tester().IsLe((a), (b)))
+#define EXPECT_LT(a, b) \
+  TEST_EXPRESSION_(::rocksdb::test::Tester().IsLt((a), (b)))
+
 #define TCONCAT(a, b) TCONCAT1(a, b)
 #define TCONCAT1(a, b) a##b
 

utilities/backupable/backupable_db_test.cc

@@ -53,20 +53,20 @@ class DummyDB : public StackableDB {
   }
 
   virtual Status EnableFileDeletions(bool force) override {
-    ASSERT_TRUE(!deletions_enabled_);
+    EXPECT_TRUE(!deletions_enabled_);
     deletions_enabled_ = true;
     return Status::OK();
   }
 
   virtual Status DisableFileDeletions() override {
-    ASSERT_TRUE(deletions_enabled_);
+    EXPECT_TRUE(deletions_enabled_);
     deletions_enabled_ = false;
     return Status::OK();
   }
 
   virtual Status GetLiveFiles(std::vector<std::string>& vec, uint64_t* mfs,
                               bool flush_memtable = true) override {
-    ASSERT_TRUE(!deletions_enabled_);
+    EXPECT_TRUE(!deletions_enabled_);
     vec = live_files_;
     *mfs = 100;
     return Status::OK();
@@ -88,7 +88,7 @@ class DummyDB : public StackableDB {
 
     virtual uint64_t LogNumber() const override {
       // what business do you have calling this method?
-      ASSERT_TRUE(false);
+      EXPECT_TRUE(false);
       return 0;
     }
 
@@ -98,13 +98,13 @@ class DummyDB : public StackableDB {
 
     virtual SequenceNumber StartSequence() const override {
       // backupabledb should not need this method
-      ASSERT_TRUE(false);
+      EXPECT_TRUE(false);
       return 0;
     }
 
     virtual uint64_t SizeFileBytes() const override {
       // backupabledb should not need this method
-      ASSERT_TRUE(false);
+      EXPECT_TRUE(false);
       return 0;
     }
 
@@ -114,7 +114,7 @@ class DummyDB : public StackableDB {
   }; // DummyLogFile
 
   virtual Status GetSortedWalFiles(VectorLogPtr& files) override {
-    ASSERT_TRUE(!deletions_enabled_);
+    EXPECT_TRUE(!deletions_enabled_);
     files.resize(wal_files_.size());
     for (size_t i = 0; i < files.size(); ++i) {
       files[i].reset(
@@ -183,7 +183,7 @@ class TestEnv : public EnvWrapper {
 
   virtual Status DeleteFile(const std::string& fname) override {
     MutexLock l(&mutex_);
-    ASSERT_GT(limit_delete_files_, 0U);
+    EXPECT_GT(limit_delete_files_, 0U);
     limit_delete_files_--;
     return EnvWrapper::DeleteFile(fname);
   }
@@ -327,7 +327,7 @@ static size_t FillDB(DB* db, int from, int to) {
     std::string value = "testvalue" + std::to_string(i);
     bytes_written += key.size() + value.size();
 
-    ASSERT_OK(db->Put(WriteOptions(), Slice(key), Slice(value)));
+    EXPECT_OK(db->Put(WriteOptions(), Slice(key), Slice(value)));
   }
   return bytes_written;
 }
@@ -382,7 +382,7 @@ class BackupableDBTest {
 
   DB* OpenDB() {
     DB* db;
-    ASSERT_OK(DB::Open(options_, dbname_, &db));
+    EXPECT_OK(DB::Open(options_, dbname_, &db));
     return db;
   }
 

utilities/geodb/geodb_test.cc

@@ -20,7 +20,7 @@ class GeoDBTest {
 
   GeoDBTest() {
     GeoDBOptions geodb_options;
-    ASSERT_OK(DestroyDB(kDefaultDbName, options));
+    EXPECT_OK(DestroyDB(kDefaultDbName, options));
     options.create_if_missing = true;
     Status status = DB::Open(options, kDefaultDbName, &db);
     geodb =  new GeoDBImpl(db, geodb_options);

utilities/merge_operators/string_append/stringappend_test.cc

@@ -32,7 +32,7 @@ std::shared_ptr<DB> OpenNormalDb(char delim_char) {
   Options options;
   options.create_if_missing = true;
   options.merge_operator.reset(new StringAppendOperator(delim_char));
-  ASSERT_OK(DB::Open(options, kDbName,  &db));
+  EXPECT_OK(DB::Open(options, kDbName, &db));
   return std::shared_ptr<DB>(db);
 }
 
@@ -42,7 +42,7 @@ std::shared_ptr<DB> OpenTtlDb(char delim_char) {
   Options options;
   options.create_if_missing = true;
   options.merge_operator.reset(new StringAppendTESTOperator(delim_char));
-  ASSERT_OK(DBWithTTL::Open(options, kDbName, &db, 123456));
+  EXPECT_OK(DBWithTTL::Open(options, kDbName, &db, 123456));
   return std::shared_ptr<DB>(db);
 }
 }  // namespace