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6924869867
Summary: Made SystemClock into a Customizable class, complete with CreateFromString. Cleaned up some of the existing SystemClock implementations that were redundant (NoSleep was the same as the internal one for MockEnv). Changed MockEnv construction to allow Clock to be passed to the Memory/MockFileSystem. Pull Request resolved: https://github.com/facebook/rocksdb/pull/8636 Reviewed By: zhichao-cao Differential Revision: D30483360 Pulled By: mrambacher fbshipit-source-id: cd0e3a876c39f8c98fe13374c06e8edbd5b9f2a1
84 lines
2.7 KiB
C++
84 lines
2.7 KiB
C++
// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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//
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// Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
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#include "env/mock_env.h"
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#include <memory>
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#include <string>
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#include "rocksdb/env.h"
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#include "test_util/testharness.h"
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namespace ROCKSDB_NAMESPACE {
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class MockEnvTest : public testing::Test {
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public:
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MockEnv* env_;
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const EnvOptions soptions_;
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MockEnvTest() : env_(MockEnv::Create(Env::Default())) {}
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~MockEnvTest() override { delete env_; }
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};
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TEST_F(MockEnvTest, Corrupt) {
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const std::string kGood = "this is a good string, synced to disk";
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const std::string kCorrupted = "this part may be corrupted";
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const std::string kFileName = "/dir/f";
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std::unique_ptr<WritableFile> writable_file;
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ASSERT_OK(env_->NewWritableFile(kFileName, &writable_file, soptions_));
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ASSERT_OK(writable_file->Append(kGood));
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ASSERT_TRUE(writable_file->GetFileSize() == kGood.size());
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std::string scratch;
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scratch.resize(kGood.size() + kCorrupted.size() + 16);
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Slice result;
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std::unique_ptr<RandomAccessFile> rand_file;
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ASSERT_OK(env_->NewRandomAccessFile(kFileName, &rand_file, soptions_));
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ASSERT_OK(rand_file->Read(0, kGood.size(), &result, &(scratch[0])));
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ASSERT_EQ(result.compare(kGood), 0);
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// Sync + corrupt => no change
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ASSERT_OK(writable_file->Fsync());
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ASSERT_OK(dynamic_cast<MockEnv*>(env_)->CorruptBuffer(kFileName));
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result.clear();
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ASSERT_OK(rand_file->Read(0, kGood.size(), &result, &(scratch[0])));
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ASSERT_EQ(result.compare(kGood), 0);
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// Add new data and corrupt it
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ASSERT_OK(writable_file->Append(kCorrupted));
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ASSERT_TRUE(writable_file->GetFileSize() == kGood.size() + kCorrupted.size());
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result.clear();
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ASSERT_OK(rand_file->Read(kGood.size(), kCorrupted.size(),
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&result, &(scratch[0])));
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ASSERT_EQ(result.compare(kCorrupted), 0);
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// Corrupted
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ASSERT_OK(dynamic_cast<MockEnv*>(env_)->CorruptBuffer(kFileName));
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result.clear();
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ASSERT_OK(rand_file->Read(kGood.size(), kCorrupted.size(),
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&result, &(scratch[0])));
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ASSERT_NE(result.compare(kCorrupted), 0);
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}
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TEST_F(MockEnvTest, FakeSleeping) {
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int64_t now = 0;
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auto s = env_->GetCurrentTime(&now);
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ASSERT_OK(s);
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env_->SleepForMicroseconds(3 * 1000 * 1000);
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int64_t after_sleep = 0;
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s = env_->GetCurrentTime(&after_sleep);
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ASSERT_OK(s);
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auto delta = after_sleep - now;
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// this will be true unless test runs for 2 seconds
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ASSERT_TRUE(delta == 3 || delta == 4);
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}
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} // namespace ROCKSDB_NAMESPACE
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int main(int argc, char** argv) {
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::testing::InitGoogleTest(&argc, argv);
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return RUN_ALL_TESTS();
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}
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