Files
netris-cdc-file-transfer/manifest/fake_manifest_builder_test.cc
Christian Schneider 4326e972ac Releasing the former Stadia file transfer tools
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.
2022-11-03 10:39:10 +01:00

121 lines
3.9 KiB
C++

// Copyright 2022 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "manifest/fake_manifest_builder.h"
#include "common/status_test_macros.h"
#include "data_store/mem_data_store.h"
#include "gtest/gtest.h"
namespace cdc_ft {
namespace {
TEST(FakeManifestBuilderTest, RootDir) {
MemDataStore store;
FakeManifestBuilder builder(&store);
const AssetProto& root = builder.Manifest()->root_dir();
EXPECT_EQ(&root, builder.Root());
EXPECT_EQ(root.type(), AssetProto::DIRECTORY);
EXPECT_TRUE(root.name().empty());
ASSERT_EQ(root.dir_assets().size(), 0);
}
TEST(FakeManifestBuilderTest, AddFile) {
MemDataStore store;
FakeManifestBuilder builder(&store);
std::vector<char> expected_data = {1, 3, 3, 7};
builder.AddFile(builder.Root(), "file", 12345, 0750, expected_data);
const AssetProto& root = builder.Manifest()->root_dir();
ASSERT_EQ(root.dir_assets().size(), 1);
const AssetProto& file = root.dir_assets(0);
EXPECT_EQ(file.name(), "file");
EXPECT_EQ(file.type(), AssetProto::FILE);
EXPECT_EQ(file.mtime_seconds(), 12345);
EXPECT_EQ(file.permissions(), 0750);
ASSERT_EQ(file.file_chunks_size(), 1);
const ChunkRefProto& chunk = file.file_chunks(0);
EXPECT_EQ(chunk.offset(), 0);
// Try to read a byte more to see if it's properly clamped.
std::vector<char> data;
data.resize(expected_data.size() + 1);
absl::StatusOr<uint64_t> bytes_read =
store.Get(chunk.chunk_id(), data.data(), 0, data.size());
ASSERT_OK(bytes_read);
EXPECT_EQ(*bytes_read, expected_data.size());
data.resize(expected_data.size());
}
TEST(FakeManifestBuilderTest, AddDirectory) {
MemDataStore store;
FakeManifestBuilder builder(&store);
AssetProto* dir = builder.AddDirectory(builder.Root(), "dir", 12345, 0750);
builder.AddFile(dir, "file", 23456, 0321, {});
const AssetProto& root = builder.Manifest()->root_dir();
ASSERT_EQ(root.dir_assets().size(), 1);
EXPECT_EQ(&root.dir_assets(0), dir);
EXPECT_EQ(dir->name(), "dir");
EXPECT_EQ(dir->type(), AssetProto::DIRECTORY);
EXPECT_EQ(dir->mtime_seconds(), 12345);
EXPECT_EQ(dir->permissions(), 0750);
ASSERT_EQ(dir->dir_assets_size(), 1);
const AssetProto& file = dir->dir_assets(0);
EXPECT_EQ(file.name(), "file");
}
TEST(FakeManifestBuilderTest, ModifyFile) {
MemDataStore store;
FakeManifestBuilder builder(&store);
std::vector<char> expected_data = {1, 3, 3, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1};
builder.AddFile(builder.Root(), "file", 12345, 0750, expected_data);
expected_data = {2, 4, 4, 3};
builder.ModifyFile(builder.Root(), "file", 14843, 0666, expected_data);
const AssetProto& root = builder.Manifest()->root_dir();
ASSERT_EQ(root.dir_assets().size(), 1);
const AssetProto& file = root.dir_assets(0);
EXPECT_EQ(file.name(), "file");
EXPECT_EQ(file.type(), AssetProto::FILE);
EXPECT_EQ(file.mtime_seconds(), 14843);
EXPECT_EQ(file.permissions(), 0666);
ASSERT_EQ(file.file_chunks_size(), 1);
const ChunkRefProto& chunk = file.file_chunks(0);
EXPECT_EQ(chunk.offset(), 0);
// Try to read a byte more to see if it's properly clamped.
std::vector<char> data;
data.resize(expected_data.size() + 1);
absl::StatusOr<uint64_t> bytes_read =
store.Get(chunk.chunk_id(), data.data(), 0, data.size());
ASSERT_OK(bytes_read);
EXPECT_EQ(*bytes_read, expected_data.size());
data.resize(expected_data.size());
}
} // namespace
} // namespace cdc_ft