use futures::StreamExt; use std::io::Cursor; use std::os::unix::prelude::MetadataExt; use std::path::Path; use std::sync::Arc; use tokio::{fs, io}; use tokio_stream::wrappers::ReadDirStream; use tvix_castore::blobservice::BlobService; use tvix_castore::directoryservice::DirectoryService; use tempfile::TempDir; use crate::fs::{fuse::FuseDaemon, TvixStoreFs}; use crate::pathinfoservice::PathInfoService; use crate::proto::PathInfo; use crate::tests::fixtures; use crate::tests::utils::{gen_blob_service, gen_directory_service, gen_pathinfo_service}; use tvix_castore::proto as castorepb; const BLOB_A_NAME: &str = "00000000000000000000000000000000-test"; const BLOB_B_NAME: &str = "55555555555555555555555555555555-test"; const HELLOWORLD_BLOB_NAME: &str = "66666666666666666666666666666666-test"; const SYMLINK_NAME: &str = "11111111111111111111111111111111-test"; const SYMLINK_NAME2: &str = "44444444444444444444444444444444-test"; const DIRECTORY_WITH_KEEP_NAME: &str = "22222222222222222222222222222222-test"; const DIRECTORY_COMPLICATED_NAME: &str = "33333333333333333333333333333333-test"; fn gen_svcs() -> ( Arc, Arc, Arc, ) { let blob_service = gen_blob_service(); let directory_service = gen_directory_service(); let path_info_service = gen_pathinfo_service(blob_service.clone(), directory_service.clone()); (blob_service, directory_service, path_info_service) } fn do_mount>( blob_service: Arc, directory_service: Arc, path_info_service: Arc, mountpoint: P, list_root: bool, ) -> io::Result { let fs = TvixStoreFs::new( blob_service, directory_service, path_info_service, list_root, ); FuseDaemon::new(fs, mountpoint.as_ref(), 4) } async fn populate_blob_a( blob_service: &Arc, _directory_service: &Arc, path_info_service: &Arc, ) { // Upload BLOB_A let mut bw = blob_service.open_write().await; tokio::io::copy(&mut Cursor::new(fixtures::BLOB_A.to_vec()), &mut bw) .await .expect("must succeed uploading"); bw.close().await.expect("must succeed closing"); // Create a PathInfo for it let path_info = PathInfo { node: Some(castorepb::Node { node: Some(castorepb::node::Node::File(castorepb::FileNode { name: BLOB_A_NAME.into(), digest: fixtures::BLOB_A_DIGEST.clone().into(), size: fixtures::BLOB_A.len() as u64, executable: false, })), }), ..Default::default() }; path_info_service .put(path_info) .await .expect("must succeed"); } async fn populate_blob_b( blob_service: &Arc, _directory_service: &Arc, path_info_service: &Arc, ) { // Upload BLOB_B let mut bw = blob_service.open_write().await; tokio::io::copy(&mut Cursor::new(fixtures::BLOB_B.to_vec()), &mut bw) .await .expect("must succeed uploading"); bw.close().await.expect("must succeed closing"); // Create a PathInfo for it let path_info = PathInfo { node: Some(castorepb::Node { node: Some(castorepb::node::Node::File(castorepb::FileNode { name: BLOB_B_NAME.into(), digest: fixtures::BLOB_B_DIGEST.clone().into(), size: fixtures::BLOB_B.len() as u64, executable: false, })), }), ..Default::default() }; path_info_service .put(path_info) .await .expect("must succeed"); } /// adds a blob containing helloworld and marks it as executable async fn populate_helloworld_blob( blob_service: &Arc, _directory_service: &Arc, path_info_service: &Arc, ) { // Upload BLOB_B let mut bw = blob_service.open_write().await; tokio::io::copy( &mut Cursor::new(fixtures::HELLOWORLD_BLOB_CONTENTS.to_vec()), &mut bw, ) .await .expect("must succeed uploading"); bw.close().await.expect("must succeed closing"); // Create a PathInfo for it let path_info = PathInfo { node: Some(castorepb::Node { node: Some(castorepb::node::Node::File(castorepb::FileNode { name: HELLOWORLD_BLOB_NAME.into(), digest: fixtures::HELLOWORLD_BLOB_DIGEST.clone().into(), size: fixtures::HELLOWORLD_BLOB_CONTENTS.len() as u64, executable: true, })), }), ..Default::default() }; path_info_service .put(path_info) .await .expect("must succeed"); } async fn populate_symlink( _blob_service: &Arc, _directory_service: &Arc, path_info_service: &Arc, ) { // Create a PathInfo for it let path_info = PathInfo { node: Some(castorepb::Node { node: Some(castorepb::node::Node::Symlink(castorepb::SymlinkNode { name: SYMLINK_NAME.into(), target: BLOB_A_NAME.into(), })), }), ..Default::default() }; path_info_service .put(path_info) .await .expect("must succeed"); } /// This writes a symlink pointing to /nix/store/somewhereelse, /// which is the same symlink target as "aa" inside DIRECTORY_COMPLICATED. async fn populate_symlink2( _blob_service: &Arc, _directory_service: &Arc, path_info_service: &Arc, ) { // Create a PathInfo for it let path_info = PathInfo { node: Some(castorepb::Node { node: Some(castorepb::node::Node::Symlink(castorepb::SymlinkNode { name: SYMLINK_NAME2.into(), target: "/nix/store/somewhereelse".into(), })), }), ..Default::default() }; path_info_service .put(path_info) .await .expect("must succeed"); } async fn populate_directory_with_keep( blob_service: &Arc, directory_service: &Arc, path_info_service: &Arc, ) { // upload empty blob let mut bw = blob_service.open_write().await; assert_eq!( fixtures::EMPTY_BLOB_DIGEST.to_vec(), bw.close().await.expect("must succeed closing").to_vec(), ); // upload directory directory_service .put(fixtures::DIRECTORY_WITH_KEEP.clone()) .await .expect("must succeed uploading"); // upload pathinfo let path_info = PathInfo { node: Some(castorepb::Node { node: Some(castorepb::node::Node::Directory(castorepb::DirectoryNode { name: DIRECTORY_WITH_KEEP_NAME.into(), digest: fixtures::DIRECTORY_WITH_KEEP.digest().into(), size: fixtures::DIRECTORY_WITH_KEEP.size(), })), }), ..Default::default() }; path_info_service .put(path_info) .await .expect("must succeed"); } /// Insert [PathInfo] for DIRECTORY_WITH_KEEP, but don't provide the Directory /// itself. async fn populate_pathinfo_without_directory( _: &Arc, _: &Arc, path_info_service: &Arc, ) { // upload pathinfo let path_info = PathInfo { node: Some(castorepb::Node { node: Some(castorepb::node::Node::Directory(castorepb::DirectoryNode { name: DIRECTORY_WITH_KEEP_NAME.into(), digest: fixtures::DIRECTORY_WITH_KEEP.digest().into(), size: fixtures::DIRECTORY_WITH_KEEP.size(), })), }), ..Default::default() }; path_info_service .put(path_info) .await .expect("must succeed"); } /// Insert , but don't provide the blob .keep is pointing to async fn populate_blob_a_without_blob( _: &Arc, _: &Arc, path_info_service: &Arc, ) { // Create a PathInfo for blob A let path_info = PathInfo { node: Some(castorepb::Node { node: Some(castorepb::node::Node::File(castorepb::FileNode { name: BLOB_A_NAME.into(), digest: fixtures::BLOB_A_DIGEST.clone().into(), size: fixtures::BLOB_A.len() as u64, executable: false, })), }), ..Default::default() }; path_info_service .put(path_info) .await .expect("must succeed"); } async fn populate_directory_complicated( blob_service: &Arc, directory_service: &Arc, path_info_service: &Arc, ) { // upload empty blob let mut bw = blob_service.open_write().await; assert_eq!( fixtures::EMPTY_BLOB_DIGEST.to_vec(), bw.close().await.expect("must succeed closing").to_vec(), ); // upload inner directory directory_service .put(fixtures::DIRECTORY_WITH_KEEP.clone()) .await .expect("must succeed uploading"); // uplodad parent directory directory_service .put(fixtures::DIRECTORY_COMPLICATED.clone()) .await .expect("must succeed uploading"); // upload pathinfo let path_info = PathInfo { node: Some(castorepb::Node { node: Some(castorepb::node::Node::Directory(castorepb::DirectoryNode { name: DIRECTORY_COMPLICATED_NAME.into(), digest: fixtures::DIRECTORY_COMPLICATED.digest().into(), size: fixtures::DIRECTORY_COMPLICATED.size(), })), }), ..Default::default() }; path_info_service .put(path_info) .await .expect("must succeed"); } /// Ensure mounting itself doesn't fail #[tokio::test] async fn mount() { // https://plume.benboeckel.net/~/JustAnotherBlog/skipping-tests-in-rust if !std::path::Path::new("/dev/fuse").exists() { eprintln!("skipping test"); return; } let tmpdir = TempDir::new().unwrap(); let (blob_service, directory_service, path_info_service) = gen_svcs(); let mut fuse_daemon = do_mount( blob_service, directory_service, path_info_service, tmpdir.path(), false, ) .expect("must succeed"); fuse_daemon.unmount().expect("unmount"); } /// Ensure listing the root isn't allowed #[tokio::test] async fn root() { // https://plume.benboeckel.net/~/JustAnotherBlog/skipping-tests-in-rust if !std::path::Path::new("/dev/fuse").exists() { eprintln!("skipping test"); return; } let tmpdir = TempDir::new().unwrap(); let (blob_service, directory_service, path_info_service) = gen_svcs(); let mut fuse_daemon = do_mount( blob_service, directory_service, path_info_service, tmpdir.path(), false, ) .expect("must succeed"); { // read_dir succeeds, but getting the first element will fail. let mut it = ReadDirStream::new(fs::read_dir(tmpdir).await.expect("must succeed")); let err = it .next() .await .expect("must be some") .expect_err("must be err"); assert_eq!(std::io::ErrorKind::PermissionDenied, err.kind()); } fuse_daemon.unmount().expect("unmount"); } /// Ensure listing the root is allowed if configured explicitly #[tokio::test(flavor = "multi_thread", worker_threads = 2)] async fn root_with_listing() { // https://plume.benboeckel.net/~/JustAnotherBlog/skipping-tests-in-rust if !std::path::Path::new("/dev/fuse").exists() { eprintln!("skipping test"); return; } let tmpdir = TempDir::new().unwrap(); let (blob_service, directory_service, path_info_service) = gen_svcs(); populate_blob_a(&blob_service, &directory_service, &path_info_service).await; let mut fuse_daemon = do_mount( blob_service, directory_service, path_info_service, tmpdir.path(), true, /* allow listing */ ) .expect("must succeed"); { // read_dir succeeds, but getting the first element will fail. let mut it = ReadDirStream::new(fs::read_dir(tmpdir).await.expect("must succeed")); let e = it .next() .await .expect("must be some") .expect("must succeed"); let metadata = e.metadata().await.expect("must succeed"); assert!(metadata.is_file()); assert!(metadata.permissions().readonly()); assert_eq!(fixtures::BLOB_A.len() as u64, metadata.len()); } fuse_daemon.unmount().expect("unmount"); } /// Ensure we can stat a file at the root #[tokio::test] async fn stat_file_at_root() { // https://plume.benboeckel.net/~/JustAnotherBlog/skipping-tests-in-rust if !std::path::Path::new("/dev/fuse").exists() { eprintln!("skipping test"); return; } let tmpdir = TempDir::new().unwrap(); let (blob_service, directory_service, path_info_service) = gen_svcs(); populate_blob_a(&blob_service, &directory_service, &path_info_service).await; let mut fuse_daemon = do_mount( blob_service, directory_service, path_info_service, tmpdir.path(), false, ) .expect("must succeed"); let p = tmpdir.path().join(BLOB_A_NAME); // peek at the file metadata let metadata = fs::metadata(p).await.expect("must succeed"); assert!(metadata.is_file()); assert!(metadata.permissions().readonly()); assert_eq!(fixtures::BLOB_A.len() as u64, metadata.len()); fuse_daemon.unmount().expect("unmount"); } /// Ensure we can read a file at the root #[tokio::test(flavor = "multi_thread", worker_threads = 2)] async fn read_file_at_root() { // https://plume.benboeckel.net/~/JustAnotherBlog/skipping-tests-in-rust if !std::path::Path::new("/dev/fuse").exists() { eprintln!("skipping test"); return; } let tmpdir = TempDir::new().unwrap(); let (blob_service, directory_service, path_info_service) = gen_svcs(); populate_blob_a(&blob_service, &directory_service, &path_info_service).await; let mut fuse_daemon = do_mount( blob_service, directory_service, path_info_service, tmpdir.path(), false, ) .expect("must succeed"); let p = tmpdir.path().join(BLOB_A_NAME); // read the file contents let data = fs::read(p).await.expect("must succeed"); // ensure size and contents match assert_eq!(fixtures::BLOB_A.len(), data.len()); assert_eq!(fixtures::BLOB_A.to_vec(), data); fuse_daemon.unmount().expect("unmount"); } /// Ensure we can read a large file at the root #[tokio::test(flavor = "multi_thread", worker_threads = 2)] async fn read_large_file_at_root() { // https://plume.benboeckel.net/~/JustAnotherBlog/skipping-tests-in-rust if !std::path::Path::new("/dev/fuse").exists() { eprintln!("skipping test"); return; } let tmpdir = TempDir::new().unwrap(); let (blob_service, directory_service, path_info_service) = gen_svcs(); populate_blob_b(&blob_service, &directory_service, &path_info_service).await; let mut fuse_daemon = do_mount( blob_service, directory_service, path_info_service, tmpdir.path(), false, ) .expect("must succeed"); let p = tmpdir.path().join(BLOB_B_NAME); { // peek at the file metadata let metadata = fs::metadata(&p).await.expect("must succeed"); assert!(metadata.is_file()); assert!(metadata.permissions().readonly()); assert_eq!(fixtures::BLOB_B.len() as u64, metadata.len()); } // read the file contents let data = fs::read(p).await.expect("must succeed"); // ensure size and contents match assert_eq!(fixtures::BLOB_B.len(), data.len()); assert_eq!(fixtures::BLOB_B.to_vec(), data); fuse_daemon.unmount().expect("unmount"); } /// Read the target of a symlink #[tokio::test] async fn symlink_readlink() { // https://plume.benboeckel.net/~/JustAnotherBlog/skipping-tests-in-rust if !std::path::Path::new("/dev/fuse").exists() { eprintln!("skipping test"); return; } let tmpdir = TempDir::new().unwrap(); let (blob_service, directory_service, path_info_service) = gen_svcs(); populate_symlink(&blob_service, &directory_service, &path_info_service).await; let mut fuse_daemon = do_mount( blob_service, directory_service, path_info_service, tmpdir.path(), false, ) .expect("must succeed"); let p = tmpdir.path().join(SYMLINK_NAME); let target = fs::read_link(&p).await.expect("must succeed"); assert_eq!(BLOB_A_NAME, target.to_str().unwrap()); // peek at the file metadata, which follows symlinks. // this must fail, as we didn't populate the target. let e = fs::metadata(&p).await.expect_err("must fail"); assert_eq!(std::io::ErrorKind::NotFound, e.kind()); // peeking at the file metadata without following symlinks will succeed. let metadata = fs::symlink_metadata(&p).await.expect("must succeed"); assert!(metadata.is_symlink()); // reading from the symlink (which follows) will fail, because the target doesn't exist. let e = fs::read(p).await.expect_err("must fail"); assert_eq!(std::io::ErrorKind::NotFound, e.kind()); fuse_daemon.unmount().expect("unmount"); } /// Read and stat a regular file through a symlink pointing to it. #[tokio::test(flavor = "multi_thread", worker_threads = 2)] async fn read_stat_through_symlink() { // https://plume.benboeckel.net/~/JustAnotherBlog/skipping-tests-in-rust if !std::path::Path::new("/dev/fuse").exists() { eprintln!("skipping test"); return; } let tmpdir = TempDir::new().unwrap(); let (blob_service, directory_service, path_info_service) = gen_svcs(); populate_blob_a(&blob_service, &directory_service, &path_info_service).await; populate_symlink(&blob_service, &directory_service, &path_info_service).await; let mut fuse_daemon = do_mount( blob_service, directory_service, path_info_service, tmpdir.path(), false, ) .expect("must succeed"); let p_symlink = tmpdir.path().join(SYMLINK_NAME); let p_blob = tmpdir.path().join(SYMLINK_NAME); // peek at the file metadata, which follows symlinks. // this must now return the same metadata as when statting at the target directly. let metadata_symlink = fs::metadata(&p_symlink).await.expect("must succeed"); let metadata_blob = fs::metadata(&p_blob).await.expect("must succeed"); assert_eq!(metadata_blob.file_type(), metadata_symlink.file_type()); assert_eq!(metadata_blob.len(), metadata_symlink.len()); // reading from the symlink (which follows) will return the same data as if // we were reading from the file directly. assert_eq!( fs::read(p_blob).await.expect("must succeed"), fs::read(p_symlink).await.expect("must succeed"), ); fuse_daemon.unmount().expect("unmount"); } /// Read a directory in the root, and validate some attributes. #[tokio::test] async fn read_stat_directory() { // https://plume.benboeckel.net/~/JustAnotherBlog/skipping-tests-in-rust if !std::path::Path::new("/dev/fuse").exists() { eprintln!("skipping test"); return; } let tmpdir = TempDir::new().unwrap(); let (blob_service, directory_service, path_info_service) = gen_svcs(); populate_directory_with_keep(&blob_service, &directory_service, &path_info_service).await; let mut fuse_daemon = do_mount( blob_service, directory_service, path_info_service, tmpdir.path(), false, ) .expect("must succeed"); let p = tmpdir.path().join(DIRECTORY_WITH_KEEP_NAME); // peek at the metadata of the directory let metadata = fs::metadata(p).await.expect("must succeed"); assert!(metadata.is_dir()); assert!(metadata.permissions().readonly()); fuse_daemon.unmount().expect("unmount"); } #[tokio::test(flavor = "multi_thread", worker_threads = 2)] /// Read a blob inside a directory. This ensures we successfully populate directory data. async fn read_blob_inside_dir() { // https://plume.benboeckel.net/~/JustAnotherBlog/skipping-tests-in-rust if !std::path::Path::new("/dev/fuse").exists() { eprintln!("skipping test"); return; } let tmpdir = TempDir::new().unwrap(); let (blob_service, directory_service, path_info_service) = gen_svcs(); populate_directory_with_keep(&blob_service, &directory_service, &path_info_service).await; let mut fuse_daemon = do_mount( blob_service, directory_service, path_info_service, tmpdir.path(), false, ) .expect("must succeed"); let p = tmpdir.path().join(DIRECTORY_WITH_KEEP_NAME).join(".keep"); // peek at metadata. let metadata = fs::metadata(&p).await.expect("must succeed"); assert!(metadata.is_file()); assert!(metadata.permissions().readonly()); // read from it let data = fs::read(&p).await.expect("must succeed"); assert_eq!(fixtures::EMPTY_BLOB_CONTENTS.to_vec(), data); fuse_daemon.unmount().expect("unmount"); } #[tokio::test(flavor = "multi_thread", worker_threads = 2)] /// Read a blob inside a directory inside a directory. This ensures we properly /// populate directories as we traverse down the structure. async fn read_blob_deep_inside_dir() { // https://plume.benboeckel.net/~/JustAnotherBlog/skipping-tests-in-rust if !std::path::Path::new("/dev/fuse").exists() { eprintln!("skipping test"); return; } let tmpdir = TempDir::new().unwrap(); let (blob_service, directory_service, path_info_service) = gen_svcs(); populate_directory_complicated(&blob_service, &directory_service, &path_info_service).await; let mut fuse_daemon = do_mount( blob_service, directory_service, path_info_service, tmpdir.path(), false, ) .expect("must succeed"); let p = tmpdir .path() .join(DIRECTORY_COMPLICATED_NAME) .join("keep") .join(".keep"); // peek at metadata. let metadata = fs::metadata(&p).await.expect("must succeed"); assert!(metadata.is_file()); assert!(metadata.permissions().readonly()); // read from it let data = fs::read(&p).await.expect("must succeed"); assert_eq!(fixtures::EMPTY_BLOB_CONTENTS.to_vec(), data); fuse_daemon.unmount().expect("unmount"); } /// Ensure readdir works. #[tokio::test] async fn readdir() { // https://plume.benboeckel.net/~/JustAnotherBlog/skipping-tests-in-rust if !std::path::Path::new("/dev/fuse").exists() { eprintln!("skipping test"); return; } let tmpdir = TempDir::new().unwrap(); let (blob_service, directory_service, path_info_service) = gen_svcs(); populate_directory_complicated(&blob_service, &directory_service, &path_info_service).await; let mut fuse_daemon = do_mount( blob_service, directory_service, path_info_service, tmpdir.path(), false, ) .expect("must succeed"); let p = tmpdir.path().join(DIRECTORY_COMPLICATED_NAME); { // read_dir should succeed. Collect all elements let elements: Vec<_> = ReadDirStream::new(fs::read_dir(p).await.expect("must succeed")) .map(|e| e.expect("must not be err")) .collect() .await; assert_eq!(3, elements.len(), "number of elements should be 3"); // rust skips . and .. // We explicitly look at specific positions here, because we always emit // them ordered. // ".keep", 0 byte file. let e = &elements[0]; assert_eq!(".keep", e.file_name()); assert!(e.file_type().await.expect("must succeed").is_file()); assert_eq!(0, e.metadata().await.expect("must succeed").len()); // "aa", symlink. let e = &elements[1]; assert_eq!("aa", e.file_name()); assert!(e.file_type().await.expect("must succeed").is_symlink()); // "keep", directory let e = &elements[2]; assert_eq!("keep", e.file_name()); assert!(e.file_type().await.expect("must succeed").is_dir()); } fuse_daemon.unmount().expect("unmount"); } #[tokio::test] /// Do a readdir deeper inside a directory, without doing readdir or stat in the parent directory. async fn readdir_deep() { // https://plume.benboeckel.net/~/JustAnotherBlog/skipping-tests-in-rust if !std::path::Path::new("/dev/fuse").exists() { eprintln!("skipping test"); return; } let tmpdir = TempDir::new().unwrap(); let (blob_service, directory_service, path_info_service) = gen_svcs(); populate_directory_complicated(&blob_service, &directory_service, &path_info_service).await; let mut fuse_daemon = do_mount( blob_service, directory_service, path_info_service, tmpdir.path(), false, ) .expect("must succeed"); let p = tmpdir.path().join(DIRECTORY_COMPLICATED_NAME).join("keep"); { // read_dir should succeed. Collect all elements let elements: Vec<_> = ReadDirStream::new(fs::read_dir(p).await.expect("must succeed")) .map(|e| e.expect("must not be err")) .collect() .await; assert_eq!(1, elements.len(), "number of elements should be 1"); // rust skips . and .. // ".keep", 0 byte file. let e = &elements[0]; assert_eq!(".keep", e.file_name()); assert!(e.file_type().await.expect("must succeed").is_file()); assert_eq!(0, e.metadata().await.expect("must succeed").len()); } fuse_daemon.unmount().expect("unmount"); } /// Check attributes match how they show up in /nix/store normally. #[tokio::test] async fn check_attributes() { // https://plume.benboeckel.net/~/JustAnotherBlog/skipping-tests-in-rust if !std::path::Path::new("/dev/fuse").exists() { eprintln!("skipping test"); return; } let tmpdir = TempDir::new().unwrap(); let (blob_service, directory_service, path_info_service) = gen_svcs(); populate_blob_a(&blob_service, &directory_service, &path_info_service).await; populate_directory_with_keep(&blob_service, &directory_service, &path_info_service).await; populate_symlink(&blob_service, &directory_service, &path_info_service).await; populate_helloworld_blob(&blob_service, &directory_service, &path_info_service).await; let mut fuse_daemon = do_mount( blob_service, directory_service, path_info_service, tmpdir.path(), false, ) .expect("must succeed"); let p_file = tmpdir.path().join(BLOB_A_NAME); let p_directory = tmpdir.path().join(DIRECTORY_WITH_KEEP_NAME); let p_symlink = tmpdir.path().join(SYMLINK_NAME); let p_executable_file = tmpdir.path().join(HELLOWORLD_BLOB_NAME); // peek at metadata. We use symlink_metadata to ensure we don't traverse a symlink by accident. let metadata_file = fs::symlink_metadata(&p_file).await.expect("must succeed"); let metadata_executable_file = fs::symlink_metadata(&p_executable_file) .await .expect("must succeed"); let metadata_directory = fs::symlink_metadata(&p_directory) .await .expect("must succeed"); let metadata_symlink = fs::symlink_metadata(&p_symlink) .await .expect("must succeed"); // modes should match. We & with 0o777 to remove any higher bits. assert_eq!(0o444, metadata_file.mode() & 0o777); assert_eq!(0o555, metadata_executable_file.mode() & 0o777); assert_eq!(0o555, metadata_directory.mode() & 0o777); assert_eq!(0o444, metadata_symlink.mode() & 0o777); // files should have the correct filesize assert_eq!(fixtures::BLOB_A.len() as u64, metadata_file.len()); // directories should have their "size" as filesize assert_eq!( fixtures::DIRECTORY_WITH_KEEP.size() as u64, metadata_directory.size() ); for metadata in &[&metadata_file, &metadata_directory, &metadata_symlink] { // uid and gid should be 0. assert_eq!(0, metadata.uid()); assert_eq!(0, metadata.gid()); // all times should be set to the unix epoch. assert_eq!(0, metadata.atime()); assert_eq!(0, metadata.mtime()); assert_eq!(0, metadata.ctime()); // crtime seems MacOS only } fuse_daemon.unmount().expect("unmount"); } #[tokio::test] /// Ensure we allocate the same inodes for the same directory contents. /// $DIRECTORY_COMPLICATED_NAME/keep contains the same data as $DIRECTORY_WITH_KEEP. async fn compare_inodes_directories() { // https://plume.benboeckel.net/~/JustAnotherBlog/skipping-tests-in-rust if !std::path::Path::new("/dev/fuse").exists() { eprintln!("skipping test"); return; } let tmpdir = TempDir::new().unwrap(); let (blob_service, directory_service, path_info_service) = gen_svcs(); populate_directory_with_keep(&blob_service, &directory_service, &path_info_service).await; populate_directory_complicated(&blob_service, &directory_service, &path_info_service).await; let mut fuse_daemon = do_mount( blob_service, directory_service, path_info_service, tmpdir.path(), false, ) .expect("must succeed"); let p_dir_with_keep = tmpdir.path().join(DIRECTORY_WITH_KEEP_NAME); let p_sibling_dir = tmpdir.path().join(DIRECTORY_COMPLICATED_NAME).join("keep"); // peek at metadata. assert_eq!( fs::metadata(p_dir_with_keep) .await .expect("must succeed") .ino(), fs::metadata(p_sibling_dir) .await .expect("must succeed") .ino() ); fuse_daemon.unmount().expect("unmount"); } /// Ensure we allocate the same inodes for the same directory contents. /// $DIRECTORY_COMPLICATED_NAME/keep/,keep contains the same data as $DIRECTORY_COMPLICATED_NAME/.keep #[tokio::test] async fn compare_inodes_files() { // https://plume.benboeckel.net/~/JustAnotherBlog/skipping-tests-in-rust if !std::path::Path::new("/dev/fuse").exists() { eprintln!("skipping test"); return; } let tmpdir = TempDir::new().unwrap(); let (blob_service, directory_service, path_info_service) = gen_svcs(); populate_directory_complicated(&blob_service, &directory_service, &path_info_service).await; let mut fuse_daemon = do_mount( blob_service, directory_service, path_info_service, tmpdir.path(), false, ) .expect("must succeed"); let p_keep1 = tmpdir.path().join(DIRECTORY_COMPLICATED_NAME).join(".keep"); let p_keep2 = tmpdir .path() .join(DIRECTORY_COMPLICATED_NAME) .join("keep") .join(".keep"); // peek at metadata. assert_eq!( fs::metadata(p_keep1).await.expect("must succeed").ino(), fs::metadata(p_keep2).await.expect("must succeed").ino() ); fuse_daemon.unmount().expect("unmount"); } /// Ensure we allocate the same inode for symlinks pointing to the same targets. /// $DIRECTORY_COMPLICATED_NAME/aa points to the same target as SYMLINK_NAME2. #[tokio::test] async fn compare_inodes_symlinks() { // https://plume.benboeckel.net/~/JustAnotherBlog/skipping-tests-in-rust if !std::path::Path::new("/dev/fuse").exists() { eprintln!("skipping test"); return; } let tmpdir = TempDir::new().unwrap(); let (blob_service, directory_service, path_info_service) = gen_svcs(); populate_directory_complicated(&blob_service, &directory_service, &path_info_service).await; populate_symlink2(&blob_service, &directory_service, &path_info_service).await; let mut fuse_daemon = do_mount( blob_service, directory_service, path_info_service, tmpdir.path(), false, ) .expect("must succeed"); let p1 = tmpdir.path().join(DIRECTORY_COMPLICATED_NAME).join("aa"); let p2 = tmpdir.path().join(SYMLINK_NAME2); // peek at metadata. assert_eq!( fs::symlink_metadata(p1).await.expect("must succeed").ino(), fs::symlink_metadata(p2).await.expect("must succeed").ino() ); fuse_daemon.unmount().expect("unmount"); } /// Check we match paths exactly. #[tokio::test] async fn read_wrong_paths_in_root() { // https://plume.benboeckel.net/~/JustAnotherBlog/skipping-tests-in-rust if !std::path::Path::new("/dev/fuse").exists() { eprintln!("skipping test"); return; } let tmpdir = TempDir::new().unwrap(); let (blob_service, directory_service, path_info_service) = gen_svcs(); populate_blob_a(&blob_service, &directory_service, &path_info_service).await; let mut fuse_daemon = do_mount( blob_service, directory_service, path_info_service, tmpdir.path(), false, ) .expect("must succeed"); // wrong name assert!( fs::metadata(tmpdir.path().join("00000000000000000000000000000000-tes")) .await .is_err() ); // invalid hash assert!( fs::metadata(tmpdir.path().join("0000000000000000000000000000000-test")) .await .is_err() ); // right name, must exist assert!( fs::metadata(tmpdir.path().join("00000000000000000000000000000000-test")) .await .is_ok() ); // now wrong name with right hash still may not exist assert!( fs::metadata(tmpdir.path().join("00000000000000000000000000000000-tes")) .await .is_err() ); fuse_daemon.unmount().expect("unmount"); } /// Make sure writes are not allowed #[tokio::test] async fn disallow_writes() { // https://plume.benboeckel.net/~/JustAnotherBlog/skipping-tests-in-rust if !std::path::Path::new("/dev/fuse").exists() { eprintln!("skipping test"); return; } let tmpdir = TempDir::new().unwrap(); let (blob_service, directory_service, path_info_service) = gen_svcs(); let mut fuse_daemon = do_mount( blob_service, directory_service, path_info_service, tmpdir.path(), false, ) .expect("must succeed"); let p = tmpdir.path().join(BLOB_A_NAME); let e = fs::File::create(p).await.expect_err("must fail"); assert_eq!(Some(libc::EROFS), e.raw_os_error()); fuse_daemon.unmount().expect("unmount"); } #[tokio::test] /// Ensure we get an IO error if the directory service does not have the Directory object. async fn missing_directory() { if !std::path::Path::new("/dev/fuse").exists() { eprintln!("skipping test"); return; } let tmpdir = TempDir::new().unwrap(); let (blob_service, directory_service, path_info_service) = gen_svcs(); populate_pathinfo_without_directory(&blob_service, &directory_service, &path_info_service) .await; let mut fuse_daemon = do_mount( blob_service, directory_service, path_info_service, tmpdir.path(), false, ) .expect("must succeed"); let p = tmpdir.path().join(DIRECTORY_WITH_KEEP_NAME); { // `stat` on the path should succeed, because it doesn't trigger the directory request. fs::metadata(&p).await.expect("must succeed"); // However, calling either `readdir` or `stat` on a child should fail with an IO error. // It fails when trying to pull the first entry, because we don't implement opendir separately ReadDirStream::new(fs::read_dir(&p).await.unwrap()) .next() .await .expect("must be some") .expect_err("must be err"); // rust currently sets e.kind() to Uncategorized, which isn't very // helpful, so we don't look at the error more closely than that.. fs::metadata(p.join(".keep")).await.expect_err("must fail"); } fuse_daemon.unmount().expect("unmount"); } #[tokio::test(flavor = "multi_thread", worker_threads = 2)] /// Ensure we get an IO error if the blob service does not have the blob async fn missing_blob() { if !std::path::Path::new("/dev/fuse").exists() { eprintln!("skipping test"); return; } let tmpdir = TempDir::new().unwrap(); let (blob_service, directory_service, path_info_service) = gen_svcs(); populate_blob_a_without_blob(&blob_service, &directory_service, &path_info_service).await; let mut fuse_daemon = do_mount( blob_service, directory_service, path_info_service, tmpdir.path(), false, ) .expect("must succeed"); let p = tmpdir.path().join(BLOB_A_NAME); { // `stat` on the blob should succeed, because it doesn't trigger a request to the blob service. fs::metadata(&p).await.expect("must succeed"); // However, calling read on the blob should fail. // rust currently sets e.kind() to Uncategorized, which isn't very // helpful, so we don't look at the error more closely than that.. fs::read(p).await.expect_err("must fail"); } fuse_daemon.unmount().expect("unmount"); }