From e6918187568dbd01842d8d1d2c808ce16a894239 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 21 Apr 2024 13:54:28 +0200 Subject: Adding upstream version 18.2.2. Signed-off-by: Daniel Baumann --- src/rocksdb/utilities/env_mirror_test.cc | 226 +++++++++++++++++++++++++++++++ 1 file changed, 226 insertions(+) create mode 100644 src/rocksdb/utilities/env_mirror_test.cc (limited to 'src/rocksdb/utilities/env_mirror_test.cc') diff --git a/src/rocksdb/utilities/env_mirror_test.cc b/src/rocksdb/utilities/env_mirror_test.cc new file mode 100644 index 000000000..c372de1da --- /dev/null +++ b/src/rocksdb/utilities/env_mirror_test.cc @@ -0,0 +1,226 @@ +// Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved. +// Copyright (c) 2015, Red Hat, Inc. All rights reserved. +// This source code is licensed under both the GPLv2 (found in the +// COPYING file in the root directory) and Apache 2.0 License +// (found in the LICENSE.Apache file in the root directory). + +#ifndef ROCKSDB_LITE + +#include "rocksdb/utilities/env_mirror.h" + +#include "env/mock_env.h" +#include "test_util/testharness.h" + +namespace ROCKSDB_NAMESPACE { + +class EnvMirrorTest : public testing::Test { + public: + Env* default_; + MockEnv *a_, *b_; + EnvMirror* env_; + const EnvOptions soptions_; + + EnvMirrorTest() + : default_(Env::Default()), + a_(new MockEnv(default_)), + b_(new MockEnv(default_)), + env_(new EnvMirror(a_, b_)) {} + ~EnvMirrorTest() { + delete env_; + delete a_; + delete b_; + } +}; + +TEST_F(EnvMirrorTest, Basics) { + uint64_t file_size; + std::unique_ptr writable_file; + std::vector children; + + ASSERT_OK(env_->CreateDir("/dir")); + + // Check that the directory is empty. + ASSERT_EQ(Status::NotFound(), env_->FileExists("/dir/non_existent")); + ASSERT_TRUE(!env_->GetFileSize("/dir/non_existent", &file_size).ok()); + ASSERT_OK(env_->GetChildren("/dir", &children)); + ASSERT_EQ(0U, children.size()); + + // Create a file. + ASSERT_OK(env_->NewWritableFile("/dir/f", &writable_file, soptions_)); + writable_file.reset(); + + // Check that the file exists. + ASSERT_OK(env_->FileExists("/dir/f")); + ASSERT_OK(a_->FileExists("/dir/f")); + ASSERT_OK(b_->FileExists("/dir/f")); + ASSERT_OK(env_->GetFileSize("/dir/f", &file_size)); + ASSERT_EQ(0U, file_size); + ASSERT_OK(env_->GetChildren("/dir", &children)); + ASSERT_EQ(1U, children.size()); + ASSERT_EQ("f", children[0]); + ASSERT_OK(a_->GetChildren("/dir", &children)); + ASSERT_EQ(1U, children.size()); + ASSERT_EQ("f", children[0]); + ASSERT_OK(b_->GetChildren("/dir", &children)); + ASSERT_EQ(1U, children.size()); + ASSERT_EQ("f", children[0]); + + // Write to the file. + ASSERT_OK(env_->NewWritableFile("/dir/f", &writable_file, soptions_)); + ASSERT_OK(writable_file->Append("abc")); + writable_file.reset(); + + // Check for expected size. + ASSERT_OK(env_->GetFileSize("/dir/f", &file_size)); + ASSERT_EQ(3U, file_size); + ASSERT_OK(a_->GetFileSize("/dir/f", &file_size)); + ASSERT_EQ(3U, file_size); + ASSERT_OK(b_->GetFileSize("/dir/f", &file_size)); + ASSERT_EQ(3U, file_size); + + // Check that renaming works. + ASSERT_TRUE(!env_->RenameFile("/dir/non_existent", "/dir/g").ok()); + ASSERT_OK(env_->RenameFile("/dir/f", "/dir/g")); + ASSERT_EQ(Status::NotFound(), env_->FileExists("/dir/f")); + ASSERT_OK(env_->FileExists("/dir/g")); + ASSERT_OK(env_->GetFileSize("/dir/g", &file_size)); + ASSERT_EQ(3U, file_size); + ASSERT_OK(a_->FileExists("/dir/g")); + ASSERT_OK(a_->GetFileSize("/dir/g", &file_size)); + ASSERT_EQ(3U, file_size); + ASSERT_OK(b_->FileExists("/dir/g")); + ASSERT_OK(b_->GetFileSize("/dir/g", &file_size)); + ASSERT_EQ(3U, file_size); + + // Check that opening non-existent file fails. + std::unique_ptr seq_file; + std::unique_ptr rand_file; + ASSERT_TRUE( + !env_->NewSequentialFile("/dir/non_existent", &seq_file, soptions_).ok()); + ASSERT_TRUE(!seq_file); + ASSERT_TRUE( + !env_->NewRandomAccessFile("/dir/non_existent", &rand_file, soptions_) + .ok()); + ASSERT_TRUE(!rand_file); + + // Check that deleting works. + ASSERT_TRUE(!env_->DeleteFile("/dir/non_existent").ok()); + ASSERT_OK(env_->DeleteFile("/dir/g")); + ASSERT_EQ(Status::NotFound(), env_->FileExists("/dir/g")); + ASSERT_OK(env_->GetChildren("/dir", &children)); + ASSERT_EQ(0U, children.size()); + ASSERT_OK(env_->DeleteDir("/dir")); +} + +TEST_F(EnvMirrorTest, ReadWrite) { + std::unique_ptr writable_file; + std::unique_ptr seq_file; + std::unique_ptr rand_file; + Slice result; + char scratch[100]; + + ASSERT_OK(env_->CreateDir("/dir")); + + ASSERT_OK(env_->NewWritableFile("/dir/f", &writable_file, soptions_)); + ASSERT_OK(writable_file->Append("hello ")); + ASSERT_OK(writable_file->Append("world")); + writable_file.reset(); + + // Read sequentially. + ASSERT_OK(env_->NewSequentialFile("/dir/f", &seq_file, soptions_)); + ASSERT_OK(seq_file->Read(5, &result, scratch)); // Read "hello". + ASSERT_EQ(0, result.compare("hello")); + ASSERT_OK(seq_file->Skip(1)); + ASSERT_OK(seq_file->Read(1000, &result, scratch)); // Read "world". + ASSERT_EQ(0, result.compare("world")); + ASSERT_OK(seq_file->Read(1000, &result, scratch)); // Try reading past EOF. + ASSERT_EQ(0U, result.size()); + ASSERT_OK(seq_file->Skip(100)); // Try to skip past end of file. + ASSERT_OK(seq_file->Read(1000, &result, scratch)); + ASSERT_EQ(0U, result.size()); + + // Random reads. + ASSERT_OK(env_->NewRandomAccessFile("/dir/f", &rand_file, soptions_)); + ASSERT_OK(rand_file->Read(6, 5, &result, scratch)); // Read "world". + ASSERT_EQ(0, result.compare("world")); + ASSERT_OK(rand_file->Read(0, 5, &result, scratch)); // Read "hello". + ASSERT_EQ(0, result.compare("hello")); + ASSERT_OK(rand_file->Read(10, 100, &result, scratch)); // Read "d". + ASSERT_EQ(0, result.compare("d")); + + // Too high offset. + ASSERT_TRUE(!rand_file->Read(1000, 5, &result, scratch).ok()); +} + +TEST_F(EnvMirrorTest, Locks) { + FileLock* lock; + + // These are no-ops, but we test they return success. + ASSERT_OK(env_->LockFile("some file", &lock)); + ASSERT_OK(env_->UnlockFile(lock)); +} + +TEST_F(EnvMirrorTest, Misc) { + std::string test_dir; + ASSERT_OK(env_->GetTestDirectory(&test_dir)); + ASSERT_TRUE(!test_dir.empty()); + + std::unique_ptr writable_file; + ASSERT_OK(env_->NewWritableFile("/a/b", &writable_file, soptions_)); + + // These are no-ops, but we test they return success. + ASSERT_OK(writable_file->Sync()); + ASSERT_OK(writable_file->Flush()); + ASSERT_OK(writable_file->Close()); + writable_file.reset(); +} + +TEST_F(EnvMirrorTest, LargeWrite) { + const size_t kWriteSize = 300 * 1024; + char* scratch = new char[kWriteSize * 2]; + + std::string write_data; + for (size_t i = 0; i < kWriteSize; ++i) { + write_data.append(1, static_cast(i)); + } + + std::unique_ptr writable_file; + ASSERT_OK(env_->NewWritableFile("/dir/f", &writable_file, soptions_)); + ASSERT_OK(writable_file->Append("foo")); + ASSERT_OK(writable_file->Append(write_data)); + writable_file.reset(); + + std::unique_ptr seq_file; + Slice result; + ASSERT_OK(env_->NewSequentialFile("/dir/f", &seq_file, soptions_)); + ASSERT_OK(seq_file->Read(3, &result, scratch)); // Read "foo". + ASSERT_EQ(0, result.compare("foo")); + + size_t read = 0; + std::string read_data; + while (read < kWriteSize) { + ASSERT_OK(seq_file->Read(kWriteSize - read, &result, scratch)); + read_data.append(result.data(), result.size()); + read += result.size(); + } + ASSERT_TRUE(write_data == read_data); + delete[] scratch; +} + +} // namespace ROCKSDB_NAMESPACE + +int main(int argc, char** argv) { + ROCKSDB_NAMESPACE::port::InstallStackTraceHandler(); + ::testing::InitGoogleTest(&argc, argv); + return RUN_ALL_TESTS(); +} + +#else +#include + +int main(int argc, char** argv) { + fprintf(stderr, "SKIPPED as EnvMirror is not supported in ROCKSDB_LITE\n"); + return 0; +} + +#endif // !ROCKSDB_LITE -- cgit v1.2.3