mirror of
https://github.com/nestriness/cdc-file-transfer.git
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4326e972ac
The tools allow efficient and fast synchronization of large directory trees from a Windows workstation to a Linux target machine. cdc_rsync* support efficient copy of files by using content-defined chunking (CDC) to identify chunks within files that can be reused. asset_stream_manager + cdc_fuse_fs support efficient streaming of a local directory to a remote virtual file system based on FUSE. It also employs CDC to identify and reuse unchanged data chunks.
268 lines
8.3 KiB
C++
268 lines
8.3 KiB
C++
// Copyright 2022 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "common/dir_iter.h"
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#include <algorithm>
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#include <iterator>
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#include "common/path.h"
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#include "common/platform.h"
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#include "common/status_test_macros.h"
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#include "common/test_main.h"
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#include "gtest/gtest.h"
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namespace cdc_ft {
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namespace {
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class DirectoryIteratorTest : public ::testing::Test {
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public:
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using StringSet = std::set<std::string>;
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DirectoryIteratorTest() {}
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void SetUp() override {
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expected_files_.insert("a/aa/aaa1.txt");
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expected_files_.insert("a/aa/aaa2.txt");
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expected_files_.insert("a/aa1.txt");
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expected_files_.insert("a/aa2.txt");
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expected_files_.insert("a/ab/aab1.txt");
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expected_files_.insert("a/ab/aab2.txt");
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expected_files_.insert("b/ba/bba1.txt");
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expected_files_.insert("b/ba/bba2.txt");
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expected_files_.insert("b/bb/bbb1.txt");
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expected_files_.insert("b/bb/bbb2.txt");
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expected_files_.insert("c/c1.txt");
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expected_files_.insert("c/c2.txt");
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expected_files_.insert("d/d1.txt");
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expected_files_.insert("d/d2.txt");
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expected_files_.insert("root.txt");
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expected_dirs_.insert("a");
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expected_dirs_.insert("a/aa");
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expected_dirs_.insert("a/ab");
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expected_dirs_.insert("b");
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expected_dirs_.insert("b/ba");
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expected_dirs_.insert("b/bb");
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expected_dirs_.insert("c");
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expected_dirs_.insert("d");
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}
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static StringSet Union(const StringSet& a, const StringSet& b) {
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StringSet out(a);
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out.insert(b.begin(), b.end());
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return out;
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}
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static StringSet Filter(
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const StringSet& items,
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std::function<bool(const std::string& item)> filter_fn) {
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StringSet out;
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std::copy_if(items.begin(), items.end(), std::inserter(out, out.begin()),
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[&](const std::string& f) { return !filter_fn(f); });
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return out;
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}
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protected:
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std::set<std::string> expected_files_;
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std::set<std::string> expected_dirs_;
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std::string test_data_dir_ = GetTestDataDir("dir_iter");
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};
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TEST_F(DirectoryIteratorTest, EmptyDirIterator) {
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DirectoryIterator dit;
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DirectoryEntry dent;
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EXPECT_OK(dit.Status());
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EXPECT_FALSE(dit.Valid());
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EXPECT_EQ(dit.Path(), std::string());
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EXPECT_FALSE(dit.NextEntry(&dent));
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}
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TEST_F(DirectoryIteratorTest, ValidDirIterator) {
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DirectoryIterator dit(test_data_dir_);
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DirectoryEntry dent;
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EXPECT_OK(dit.Status());
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EXPECT_TRUE(dit.Valid());
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EXPECT_EQ(dit.Path(), test_data_dir_);
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EXPECT_TRUE(dit.NextEntry(&dent));
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}
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TEST_F(DirectoryIteratorTest, FindFiles) {
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DirectoryIterator dit(test_data_dir_, DirectorySearchFlags::kFiles, false);
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DirectoryEntry dent;
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std::set<std::string> found;
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while (dit.NextEntry(&dent)) {
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found.insert(path::ToUnix(dent.RelPathName()));
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}
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EXPECT_OK(dit.Status());
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std::set<std::string> expected = Filter(
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expected_files_,
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[](const std::string& f) { return f.find('/') != std::string::npos; });
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EXPECT_EQ(found, expected);
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}
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TEST_F(DirectoryIteratorTest, FindDirectories) {
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DirectoryIterator dit(test_data_dir_, DirectorySearchFlags::kDirectories,
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false);
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DirectoryEntry dent;
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std::set<std::string> found;
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while (dit.NextEntry(&dent)) {
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found.insert(path::ToUnix(dent.RelPathName()));
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}
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EXPECT_OK(dit.Status());
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std::set<std::string> expected = Filter(
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expected_dirs_,
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[](const std::string& f) { return f.find('/') != std::string::npos; });
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EXPECT_EQ(found, expected);
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}
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TEST_F(DirectoryIteratorTest, FindFilesAndDirectories) {
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DirectoryIterator dit(test_data_dir_,
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DirectorySearchFlags::kFilesAndDirectories, false);
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DirectoryEntry dent;
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std::set<std::string> found;
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while (dit.NextEntry(&dent)) {
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found.insert(path::ToUnix(dent.RelPathName()));
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}
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EXPECT_OK(dit.Status());
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std::set<std::string> expected = Filter(
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Union(expected_dirs_, expected_files_),
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[](const std::string& f) { return f.find('/') != std::string::npos; });
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EXPECT_EQ(found, expected);
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}
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TEST_F(DirectoryIteratorTest, FindFilesRecursive) {
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DirectoryIterator dit(test_data_dir_, DirectorySearchFlags::kFiles);
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DirectoryEntry dent;
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std::set<std::string> found;
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while (dit.NextEntry(&dent)) {
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found.insert(path::ToUnix(dent.RelPathName()));
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}
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EXPECT_OK(dit.Status());
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EXPECT_EQ(found, expected_files_);
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}
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TEST_F(DirectoryIteratorTest, FindDirectoriesRecursive) {
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DirectoryIterator dit(test_data_dir_, DirectorySearchFlags::kDirectories);
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DirectoryEntry dent;
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std::set<std::string> found;
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while (dit.NextEntry(&dent)) {
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found.insert(path::ToUnix(dent.RelPathName()));
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}
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EXPECT_OK(dit.Status());
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EXPECT_EQ(found, expected_dirs_);
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}
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TEST_F(DirectoryIteratorTest, FindFilesAndDirectoriesRecursive) {
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DirectoryIterator dit(test_data_dir_);
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DirectoryEntry dent;
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std::set<std::string> found;
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while (dit.NextEntry(&dent)) {
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found.insert(path::ToUnix(dent.RelPathName()));
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}
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EXPECT_OK(dit.Status());
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EXPECT_EQ(found, Union(expected_dirs_, expected_files_));
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}
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TEST_F(DirectoryIteratorTest, DirNotFound) {
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DirectoryIterator dit("does/not/exist");
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DirectoryEntry dent;
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std::set<std::string> found;
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while (dit.NextEntry(&dent)) {
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found.insert(path::ToUnix(dent.RelPathName()));
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}
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EXPECT_TRUE(found.empty());
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EXPECT_TRUE(absl::IsNotFound(dit.Status()));
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}
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TEST_F(DirectoryIteratorTest, HandleError) {
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// Trying to open a file instead of a directory.
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DirectoryIterator dit(path::Join(test_data_dir_, "root.txt"));
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DirectoryEntry dent;
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std::set<std::string> found;
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while (dit.NextEntry(&dent)) {
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found.insert(path::ToUnix(dent.RelPathName()));
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}
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EXPECT_TRUE(found.empty());
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EXPECT_NOT_OK(dit.Status());
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}
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TEST_F(DirectoryIteratorTest, EmptyDirEntry) {
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DirectoryEntry dent;
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EXPECT_FALSE(dent.Valid());
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EXPECT_FALSE(dent.IsDir());
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EXPECT_FALSE(dent.IsRegularFile());
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EXPECT_FALSE(dent.IsSymlink());
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EXPECT_EQ(dent.Name(), std::string());
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EXPECT_EQ(dent.RelPath(), std::string());
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EXPECT_EQ(dent.RelPathName(), std::string());
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}
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TEST_F(DirectoryIteratorTest, DirEntryForFile) {
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DirectoryIterator dit(test_data_dir_, DirectorySearchFlags::kFiles, false);
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DirectoryEntry dent;
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EXPECT_TRUE(dit.NextEntry(&dent));
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EXPECT_OK(dit.Status());
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EXPECT_TRUE(dent.Valid());
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EXPECT_FALSE(dent.IsDir());
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EXPECT_TRUE(dent.IsRegularFile());
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#ifdef PLATFORM_WINDOWS
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// On Windows, Bazel does not copy nor link data dependencies.
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EXPECT_FALSE(dent.IsSymlink());
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#else
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// On Linux, Bazel creates symlinks for files in data dependencies.
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EXPECT_TRUE(dent.IsSymlink());
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#endif
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EXPECT_EQ(dent.Name(), "root.txt");
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EXPECT_EQ(dent.RelPath(), std::string());
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EXPECT_EQ(dent.RelPathName(), "root.txt");
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}
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TEST_F(DirectoryIteratorTest, DirEntryForDir) {
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std::set<std::string> expected_any = Filter(
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expected_dirs_,
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[](const std::string& f) { return f.find('/') != std::string::npos; });
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DirectoryIterator dit(test_data_dir_, DirectorySearchFlags::kDirectories,
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false);
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DirectoryEntry dent;
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EXPECT_TRUE(dit.NextEntry(&dent));
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EXPECT_OK(dit.Status());
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EXPECT_TRUE(dent.Valid());
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EXPECT_TRUE(dent.IsDir());
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EXPECT_FALSE(dent.IsRegularFile());
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EXPECT_FALSE(dent.IsSymlink());
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EXPECT_TRUE(expected_any.find(dent.Name()) != expected_any.end());
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EXPECT_EQ(dent.RelPath(), std::string());
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EXPECT_TRUE(expected_any.find(dent.RelPathName()) != expected_any.end());
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}
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TEST_F(DirectoryIteratorTest, DirEntryClear) {
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DirectoryIterator dit(test_data_dir_, DirectorySearchFlags::kFiles, false);
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DirectoryEntry dent;
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EXPECT_TRUE(dit.NextEntry(&dent));
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EXPECT_OK(dit.Status());
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dent.Clear();
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EXPECT_FALSE(dent.Valid());
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EXPECT_FALSE(dent.IsDir());
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EXPECT_FALSE(dent.IsRegularFile());
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EXPECT_FALSE(dent.IsSymlink());
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EXPECT_EQ(dent.Name(), std::string());
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EXPECT_EQ(dent.RelPath(), std::string());
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EXPECT_EQ(dent.RelPathName(), std::string());
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}
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} // namespace
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} // namespace cdc_ft
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