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-rw-r--r--src/rocksdb/env/mock_env_test.cc85
1 files changed, 85 insertions, 0 deletions
diff --git a/src/rocksdb/env/mock_env_test.cc b/src/rocksdb/env/mock_env_test.cc
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index 000000000..7f339540d
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+++ b/src/rocksdb/env/mock_env_test.cc
@@ -0,0 +1,85 @@
+// 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.
+//
+// Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+
+#include "env/mock_env.h"
+
+#include <memory>
+#include <string>
+
+#include "rocksdb/env.h"
+#include "test_util/testharness.h"
+
+namespace ROCKSDB_NAMESPACE {
+
+class MockEnvTest : public testing::Test {
+ public:
+ MockEnv* env_;
+ const EnvOptions soptions_;
+
+ MockEnvTest()
+ : env_(new MockEnv(Env::Default())) {
+ }
+ ~MockEnvTest() override { delete env_; }
+};
+
+TEST_F(MockEnvTest, Corrupt) {
+ const std::string kGood = "this is a good string, synced to disk";
+ const std::string kCorrupted = "this part may be corrupted";
+ const std::string kFileName = "/dir/f";
+ std::unique_ptr<WritableFile> writable_file;
+ ASSERT_OK(env_->NewWritableFile(kFileName, &writable_file, soptions_));
+ ASSERT_OK(writable_file->Append(kGood));
+ ASSERT_TRUE(writable_file->GetFileSize() == kGood.size());
+
+ std::string scratch;
+ scratch.resize(kGood.size() + kCorrupted.size() + 16);
+ Slice result;
+ std::unique_ptr<RandomAccessFile> rand_file;
+ ASSERT_OK(env_->NewRandomAccessFile(kFileName, &rand_file, soptions_));
+ ASSERT_OK(rand_file->Read(0, kGood.size(), &result, &(scratch[0])));
+ ASSERT_EQ(result.compare(kGood), 0);
+
+ // Sync + corrupt => no change
+ ASSERT_OK(writable_file->Fsync());
+ ASSERT_OK(dynamic_cast<MockEnv*>(env_)->CorruptBuffer(kFileName));
+ result.clear();
+ ASSERT_OK(rand_file->Read(0, kGood.size(), &result, &(scratch[0])));
+ ASSERT_EQ(result.compare(kGood), 0);
+
+ // Add new data and corrupt it
+ ASSERT_OK(writable_file->Append(kCorrupted));
+ ASSERT_TRUE(writable_file->GetFileSize() == kGood.size() + kCorrupted.size());
+ result.clear();
+ ASSERT_OK(rand_file->Read(kGood.size(), kCorrupted.size(),
+ &result, &(scratch[0])));
+ ASSERT_EQ(result.compare(kCorrupted), 0);
+ // Corrupted
+ ASSERT_OK(dynamic_cast<MockEnv*>(env_)->CorruptBuffer(kFileName));
+ result.clear();
+ ASSERT_OK(rand_file->Read(kGood.size(), kCorrupted.size(),
+ &result, &(scratch[0])));
+ ASSERT_NE(result.compare(kCorrupted), 0);
+}
+
+TEST_F(MockEnvTest, FakeSleeping) {
+ int64_t now = 0;
+ auto s = env_->GetCurrentTime(&now);
+ ASSERT_OK(s);
+ env_->FakeSleepForMicroseconds(3 * 1000 * 1000);
+ int64_t after_sleep = 0;
+ s = env_->GetCurrentTime(&after_sleep);
+ ASSERT_OK(s);
+ auto delta = after_sleep - now;
+ // this will be true unless test runs for 2 seconds
+ ASSERT_TRUE(delta == 3 || delta == 4);
+}
+
+} // namespace ROCKSDB_NAMESPACE
+
+int main(int argc, char** argv) {
+ ::testing::InitGoogleTest(&argc, argv);
+ return RUN_ALL_TESTS();
+}