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use crate::nar::calculate_size_and_sha256;
use crate::nar::write_nar;
use crate::tests::fixtures::blob_service;
use crate::tests::fixtures::directory_service;
use crate::tests::fixtures::*;
use rstest::*;
use sha2::{Digest, Sha256};
use std::io;
use std::sync::Arc;
use tokio::io::sink;
use tvix_castore::blobservice::BlobService;
use tvix_castore::directoryservice::{
DirectoryNode, DirectoryService, FileNode, Node, SymlinkNode,
};
#[rstest]
#[tokio::test]
async fn single_symlink(
blob_service: Arc<dyn BlobService>,
directory_service: Arc<dyn DirectoryService>,
) {
let mut buf: Vec<u8> = vec![];
write_nar(
&mut buf,
&Node::Symlink(
SymlinkNode::new("doesntmatter".into(), "/nix/store/somewhereelse".into()).unwrap(),
),
// don't put anything in the stores, as we don't actually do any requests.
blob_service,
directory_service,
)
.await
.expect("must succeed");
assert_eq!(buf, NAR_CONTENTS_SYMLINK.to_vec());
}
/// Make sure the NARRenderer fails if a referred blob doesn't exist.
#[rstest]
#[tokio::test]
async fn single_file_missing_blob(
blob_service: Arc<dyn BlobService>,
directory_service: Arc<dyn DirectoryService>,
) {
let e = write_nar(
sink(),
&Node::File(
FileNode::new(
"doesntmatter".into(),
HELLOWORLD_BLOB_DIGEST.clone(),
HELLOWORLD_BLOB_CONTENTS.len() as u64,
false,
)
.unwrap(),
),
// the blobservice is empty intentionally, to provoke the error.
blob_service,
directory_service,
)
.await
.expect_err("must fail");
match e {
crate::nar::RenderError::NARWriterError(e) => {
assert_eq!(io::ErrorKind::NotFound, e.kind());
}
_ => panic!("unexpected error: {:?}", e),
}
}
/// Make sure the NAR Renderer fails if the returned blob meta has another size
/// than specified in the proto node.
#[rstest]
#[tokio::test]
async fn single_file_wrong_blob_size(
blob_service: Arc<dyn BlobService>,
directory_service: Arc<dyn DirectoryService>,
) {
// insert blob into the store
let mut writer = blob_service.open_write().await;
tokio::io::copy(
&mut io::Cursor::new(HELLOWORLD_BLOB_CONTENTS.to_vec()),
&mut writer,
)
.await
.unwrap();
assert_eq!(
HELLOWORLD_BLOB_DIGEST.clone(),
writer.close().await.unwrap()
);
// Test with a root FileNode of a too big size
let e = write_nar(
sink(),
&Node::File(
FileNode::new(
"doesntmatter".into(),
HELLOWORLD_BLOB_DIGEST.clone(),
42, // <- note the wrong size here!
false,
)
.unwrap(),
),
blob_service.clone(),
directory_service.clone(),
)
.await
.expect_err("must fail");
match e {
crate::nar::RenderError::NARWriterError(e) => {
assert_eq!(io::ErrorKind::UnexpectedEof, e.kind());
}
_ => panic!("unexpected error: {:?}", e),
}
// Test with a root FileNode of a too small size
let e = write_nar(
sink(),
&Node::File(
FileNode::new(
"doesntmatter".into(),
HELLOWORLD_BLOB_DIGEST.clone(),
2, // <- note the wrong size here!
false,
)
.unwrap(),
),
blob_service,
directory_service,
)
.await
.expect_err("must fail");
match e {
crate::nar::RenderError::NARWriterError(e) => {
assert_eq!(io::ErrorKind::InvalidInput, e.kind());
}
_ => panic!("unexpected error: {:?}", e),
}
}
#[rstest]
#[tokio::test]
async fn single_file(
blob_service: Arc<dyn BlobService>,
directory_service: Arc<dyn DirectoryService>,
) {
// insert blob into the store
let mut writer = blob_service.open_write().await;
tokio::io::copy(&mut io::Cursor::new(HELLOWORLD_BLOB_CONTENTS), &mut writer)
.await
.unwrap();
assert_eq!(
HELLOWORLD_BLOB_DIGEST.clone(),
writer.close().await.unwrap()
);
let mut buf: Vec<u8> = vec![];
write_nar(
&mut buf,
&Node::File(
FileNode::new(
"doesntmatter".into(),
HELLOWORLD_BLOB_DIGEST.clone(),
HELLOWORLD_BLOB_CONTENTS.len() as u64,
false,
)
.unwrap(),
),
blob_service,
directory_service,
)
.await
.expect("must succeed");
assert_eq!(buf, NAR_CONTENTS_HELLOWORLD.to_vec());
}
#[rstest]
#[tokio::test]
async fn test_complicated(
blob_service: Arc<dyn BlobService>,
directory_service: Arc<dyn DirectoryService>,
) {
// put all data into the stores.
// insert blob into the store
let mut writer = blob_service.open_write().await;
tokio::io::copy(&mut io::Cursor::new(EMPTY_BLOB_CONTENTS), &mut writer)
.await
.unwrap();
assert_eq!(EMPTY_BLOB_DIGEST.clone(), writer.close().await.unwrap());
// insert directories
directory_service
.put(DIRECTORY_WITH_KEEP.clone())
.await
.unwrap();
directory_service
.put(DIRECTORY_COMPLICATED.clone())
.await
.unwrap();
let mut buf: Vec<u8> = vec![];
write_nar(
&mut buf,
&Node::Directory(
DirectoryNode::new(
"doesntmatter".into(),
DIRECTORY_COMPLICATED.digest(),
DIRECTORY_COMPLICATED.size(),
)
.unwrap(),
),
blob_service.clone(),
directory_service.clone(),
)
.await
.expect("must succeed");
assert_eq!(buf, NAR_CONTENTS_COMPLICATED.to_vec());
// ensure calculate_nar does return the correct sha256 digest and sum.
let (nar_size, nar_digest) = calculate_size_and_sha256(
&Node::Directory(
DirectoryNode::new(
"doesntmatter".into(),
DIRECTORY_COMPLICATED.digest(),
DIRECTORY_COMPLICATED.size(),
)
.unwrap(),
),
blob_service,
directory_service,
)
.await
.expect("must succeed");
assert_eq!(NAR_CONTENTS_COMPLICATED.len() as u64, nar_size);
let d = Sha256::digest(NAR_CONTENTS_COMPLICATED.clone());
assert_eq!(d.as_slice(), nar_digest);
}
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