2 files changed, 151 insertions, 0 deletions
diff --git a/src/leveldb/issues/issue178_test.cc b/src/leveldb/issues/issue178_test.cc
new file mode 100644
index 0000000000..1b1cf8bb28
--- /dev/null
+++ b/src/leveldb/issues/issue178_test.cc
@@ -0,0 +1,92 @@
+// Copyright (c) 2013 The LevelDB Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file. See the AUTHORS file for names of contributors.
+
+// Test for issue 178: a manual compaction causes deleted data to reappear.
+#include <iostream>
+#include <sstream>
+#include <cstdlib>
+
+#include "leveldb/db.h"
+#include "leveldb/write_batch.h"
+#include "util/testharness.h"
+
+namespace {
+
+const int kNumKeys = 1100000;
+
+std::string Key1(int i) {
+  char buf[100];
+  snprintf(buf, sizeof(buf), "my_key_%d", i);
+  return buf;
+}
+
+std::string Key2(int i) {
+  return Key1(i) + "_xxx";
+}
+
+class Issue178 { };
+
+TEST(Issue178, Test) {
+  // Get rid of any state from an old run.
+  std::string dbpath = leveldb::test::TmpDir() + "/leveldb_cbug_test";
+  DestroyDB(dbpath, leveldb::Options());
+
+  // Open database.  Disable compression since it affects the creation
+  // of layers and the code below is trying to test against a very
+  // specific scenario.
+  leveldb::DB* db;
+  leveldb::Options db_options;
+  db_options.create_if_missing = true;
+  db_options.compression = leveldb::kNoCompression;
+  ASSERT_OK(leveldb::DB::Open(db_options, dbpath, &db));
+
+  // create first key range
+  leveldb::WriteBatch batch;
+  for (size_t i = 0; i < kNumKeys; i++) {
+    batch.Put(Key1(i), "value for range 1 key");
+  }
+  ASSERT_OK(db->Write(leveldb::WriteOptions(), &batch));
+
+  // create second key range
+  batch.Clear();
+  for (size_t i = 0; i < kNumKeys; i++) {
+    batch.Put(Key2(i), "value for range 2 key");
+  }
+  ASSERT_OK(db->Write(leveldb::WriteOptions(), &batch));
+
+  // delete second key range
+  batch.Clear();
+  for (size_t i = 0; i < kNumKeys; i++) {
+    batch.Delete(Key2(i));
+  }
+  ASSERT_OK(db->Write(leveldb::WriteOptions(), &batch));
+
+  // compact database
+  std::string start_key = Key1(0);
+  std::string end_key = Key1(kNumKeys - 1);
+  leveldb::Slice least(start_key.data(), start_key.size());
+  leveldb::Slice greatest(end_key.data(), end_key.size());
+
+  // commenting out the line below causes the example to work correctly
+  db->CompactRange(&least, &greatest);
+
+  // count the keys
+  leveldb::Iterator* iter = db->NewIterator(leveldb::ReadOptions());
+  size_t num_keys = 0;
+  for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
+    num_keys++;
+  }
+  delete iter;
+  ASSERT_EQ(kNumKeys, num_keys) << "Bad number of keys";
+
+  // close database
+  delete db;
+  DestroyDB(dbpath, leveldb::Options());
+}
+
+}  // anonymous namespace
+
+int main(int argc, char** argv) {
+  return leveldb::test::RunAllTests();
+}
diff --git a/src/leveldb/issues/issue200_test.cc b/src/leveldb/issues/issue200_test.cc
new file mode 100644
index 0000000000..1cec79f443
--- /dev/null
+++ b/src/leveldb/issues/issue200_test.cc
@@ -0,0 +1,59 @@
+// Copyright (c) 2013 The LevelDB Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file. See the AUTHORS file for names of contributors.
+
+// Test for issue 200: when iterator switches direction from backward
+// to forward, the current key can be yielded unexpectedly if a new
+// mutation has been added just before the current key.
+
+#include "leveldb/db.h"
+#include "util/testharness.h"
+
+namespace leveldb {
+
+class Issue200 { };
+
+TEST(Issue200, Test) {
+  // Get rid of any state from an old run.
+  std::string dbpath = test::TmpDir() + "/leveldb_issue200_test";
+  DestroyDB(dbpath, Options());
+
+  DB *db;
+  Options options;
+  options.create_if_missing = true;
+  ASSERT_OK(DB::Open(options, dbpath, &db));
+
+  WriteOptions write_options;
+  ASSERT_OK(db->Put(write_options, "1", "b"));
+  ASSERT_OK(db->Put(write_options, "2", "c"));
+  ASSERT_OK(db->Put(write_options, "3", "d"));
+  ASSERT_OK(db->Put(write_options, "4", "e"));
+  ASSERT_OK(db->Put(write_options, "5", "f"));
+
+  ReadOptions read_options;
+  Iterator *iter = db->NewIterator(read_options);
+
+  // Add an element that should not be reflected in the iterator.
+  ASSERT_OK(db->Put(write_options, "25", "cd"));
+
+  iter->Seek("5");
+  ASSERT_EQ(iter->key().ToString(), "5");
+  iter->Prev();
+  ASSERT_EQ(iter->key().ToString(), "4");
+  iter->Prev();
+  ASSERT_EQ(iter->key().ToString(), "3");
+  iter->Next();
+  ASSERT_EQ(iter->key().ToString(), "4");
+  iter->Next();
+  ASSERT_EQ(iter->key().ToString(), "5");
+
+  delete iter;
+  delete db;
+  DestroyDB(dbpath, options);
+}
+
+}  // namespace leveldb
+
+int main(int argc, char** argv) {
+  return leveldb::test::RunAllTests();
+}