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author | Ilya Zhuravlev <zhuravlevilya@ya.ru> | 2012-10-23 01:18:44 +0400 |
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committer | Sfan5 <sfan5@live.de> | 2013-09-09 22:50:50 +0200 |
commit | 58841ef12f6cba1bb622353c1fcaa0e3c6fb46c9 (patch) | |
tree | 6012bbb1905231025dff89aa73782a7c38666839 /src/leveldb/util/testutil.h | |
parent | 71a8769bb5ded4acb3f9e5a8502bb8af277f824d (diff) | |
download | minetest-58841ef12f6cba1bb622353c1fcaa0e3c6fb46c9.tar.gz minetest-58841ef12f6cba1bb622353c1fcaa0e3c6fb46c9.tar.bz2 minetest-58841ef12f6cba1bb622353c1fcaa0e3c6fb46c9.zip |
Add dummy and LevelDB database backends
Diffstat (limited to 'src/leveldb/util/testutil.h')
-rw-r--r-- | src/leveldb/util/testutil.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/leveldb/util/testutil.h b/src/leveldb/util/testutil.h new file mode 100644 index 000000000..824e655bd --- /dev/null +++ b/src/leveldb/util/testutil.h @@ -0,0 +1,53 @@ +// Copyright (c) 2011 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. + +#ifndef STORAGE_LEVELDB_UTIL_TESTUTIL_H_ +#define STORAGE_LEVELDB_UTIL_TESTUTIL_H_ + +#include "leveldb/env.h" +#include "leveldb/slice.h" +#include "util/random.h" + +namespace leveldb { +namespace test { + +// Store in *dst a random string of length "len" and return a Slice that +// references the generated data. +extern Slice RandomString(Random* rnd, int len, std::string* dst); + +// Return a random key with the specified length that may contain interesting +// characters (e.g. \x00, \xff, etc.). +extern std::string RandomKey(Random* rnd, int len); + +// Store in *dst a string of length "len" that will compress to +// "N*compressed_fraction" bytes and return a Slice that references +// the generated data. +extern Slice CompressibleString(Random* rnd, double compressed_fraction, + int len, std::string* dst); + +// A wrapper that allows injection of errors. +class ErrorEnv : public EnvWrapper { + public: + bool writable_file_error_; + int num_writable_file_errors_; + + ErrorEnv() : EnvWrapper(Env::Default()), + writable_file_error_(false), + num_writable_file_errors_(0) { } + + virtual Status NewWritableFile(const std::string& fname, + WritableFile** result) { + if (writable_file_error_) { + ++num_writable_file_errors_; + *result = NULL; + return Status::IOError(fname, "fake error"); + } + return target()->NewWritableFile(fname, result); + } +}; + +} // namespace test +} // namespace leveldb + +#endif // STORAGE_LEVELDB_UTIL_TESTUTIL_H_ |