feat(tvix/castore): add rstest-based BlobService tests
Change-Id: Ifae9c41e1e3fa5e96f9b7e188181a44650ff8a04 Reviewed-on: https://cl.tvl.fyi/c/depot/+/11250 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: raitobezarius <tvl@lahfa.xyz> Tested-by: BuildkiteCI
This commit is contained in:
Florian Klink
clbot
parent
f5cf659245
commit
fe6ae58ba5
3 changed files with 294 additions and 243 deletions
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use std::io;
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use std::pin::pin;
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use test_case::test_case;
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use tokio::io::AsyncReadExt;
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use tokio::io::AsyncSeekExt;
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use super::B3Digest;
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use super::BlobService;
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use super::MemoryBlobService;
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use super::SledBlobService;
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use crate::fixtures;
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// TODO: avoid having to define all different services we test against for all functions.
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// maybe something like rstest can be used?
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fn gen_memory_blob_service() -> impl BlobService {
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MemoryBlobService::default()
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}
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fn gen_sled_blob_service() -> impl BlobService {
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SledBlobService::new_temporary().unwrap()
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}
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// TODO: add GRPC blob service here.
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/// Using [BlobService::has] on a non-existing blob should return false
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#[test_case(gen_memory_blob_service(); "memory")]
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#[test_case(gen_sled_blob_service(); "sled")]
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fn has_nonexistent_false(blob_service: impl BlobService) {
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tokio::runtime::Runtime::new().unwrap().block_on(async {
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assert!(!blob_service
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.has(&fixtures::BLOB_A_DIGEST)
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.await
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.expect("must not fail"));
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})
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}
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/// Trying to read a non-existing blob should return a None instead of a reader.
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#[test_case(gen_memory_blob_service(); "memory")]
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#[test_case(gen_sled_blob_service(); "sled")]
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fn not_found_read(blob_service: impl BlobService) {
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tokio::runtime::Runtime::new().unwrap().block_on(async {
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assert!(blob_service
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.open_read(&fixtures::BLOB_A_DIGEST)
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.await
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.expect("must not fail")
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.is_none())
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})
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}
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/// Put a blob in the store, check has, get it back.
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/// We test both with small and big blobs.
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#[test_case(gen_memory_blob_service(), &fixtures::BLOB_A, &fixtures::BLOB_A_DIGEST; "memory-small")]
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#[test_case(gen_sled_blob_service(), &fixtures::BLOB_A, &fixtures::BLOB_A_DIGEST; "sled-small")]
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#[test_case(gen_memory_blob_service(), &fixtures::BLOB_B, &fixtures::BLOB_B_DIGEST; "memory-big")]
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#[test_case(gen_sled_blob_service(), &fixtures::BLOB_B, &fixtures::BLOB_B_DIGEST; "sled-big")]
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fn put_has_get(blob_service: impl BlobService, blob_contents: &[u8], blob_digest: &B3Digest) {
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tokio::runtime::Runtime::new().unwrap().block_on(async {
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let mut w = blob_service.open_write().await;
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let l = tokio::io::copy(&mut io::Cursor::new(blob_contents), &mut w)
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.await
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.expect("copy must succeed");
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assert_eq!(
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blob_contents.len(),
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l as usize,
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"written bytes must match blob length"
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);
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let digest = w.close().await.expect("close must succeed");
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assert_eq!(*blob_digest, digest, "returned digest must be correct");
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assert!(
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blob_service.has(blob_digest).await.expect("must not fail"),
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"blob service should now have the blob"
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);
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let mut r = blob_service
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.open_read(blob_digest)
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.await
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.expect("open_read must succeed")
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.expect("must be some");
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let mut buf: Vec<u8> = Vec::new();
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let mut pinned_reader = pin!(r);
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let l = tokio::io::copy(&mut pinned_reader, &mut buf)
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.await
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.expect("copy must succeed");
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// let l = io::copy(&mut r, &mut buf).expect("copy must succeed");
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assert_eq!(
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blob_contents.len(),
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l as usize,
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"read bytes must match blob length"
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);
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assert_eq!(blob_contents, buf, "read blob contents must match");
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})
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}
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/// Put a blob in the store, and seek inside it a bit.
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#[test_case(gen_memory_blob_service(); "memory")]
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#[test_case(gen_sled_blob_service(); "sled")]
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fn put_seek(blob_service: impl BlobService) {
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tokio::runtime::Runtime::new().unwrap().block_on(async {
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let mut w = blob_service.open_write().await;
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tokio::io::copy(&mut io::Cursor::new(&fixtures::BLOB_B.to_vec()), &mut w)
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.await
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.expect("copy must succeed");
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w.close().await.expect("close must succeed");
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// open a blob for reading
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let mut r = blob_service
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.open_read(&fixtures::BLOB_B_DIGEST)
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.await
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.expect("open_read must succeed")
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.expect("must be some");
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let mut pos: u64 = 0;
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// read the first 10 bytes, they must match the data in the fixture.
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{
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let mut buf = [0; 10];
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r.read_exact(&mut buf).await.expect("must succeed");
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assert_eq!(
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&fixtures::BLOB_B[pos as usize..pos as usize + buf.len()],
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buf,
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"expected first 10 bytes to match"
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);
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pos += buf.len() as u64;
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}
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// seek by 0 bytes, using SeekFrom::Start.
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let p = r
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.seek(io::SeekFrom::Start(pos))
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.await
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.expect("must not fail");
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assert_eq!(pos, p);
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// read the next 10 bytes, they must match the data in the fixture.
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{
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let mut buf = [0; 10];
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r.read_exact(&mut buf).await.expect("must succeed");
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assert_eq!(
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&fixtures::BLOB_B[pos as usize..pos as usize + buf.len()],
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buf,
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"expected data to match"
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);
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pos += buf.len() as u64;
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}
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// seek by 5 bytes, using SeekFrom::Start.
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let p = r
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.seek(io::SeekFrom::Start(pos + 5))
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.await
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.expect("must not fail");
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pos += 5;
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assert_eq!(pos, p);
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// read the next 10 bytes, they must match the data in the fixture.
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{
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let mut buf = [0; 10];
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r.read_exact(&mut buf).await.expect("must succeed");
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assert_eq!(
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&fixtures::BLOB_B[pos as usize..pos as usize + buf.len()],
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buf,
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"expected data to match"
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);
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pos += buf.len() as u64;
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}
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// seek by 12345 bytes, using SeekFrom::
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let p = r
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.seek(io::SeekFrom::Current(12345))
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.await
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.expect("must not fail");
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pos += 12345;
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assert_eq!(pos, p);
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// read the next 10 bytes, they must match the data in the fixture.
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{
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let mut buf = [0; 10];
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r.read_exact(&mut buf).await.expect("must succeed");
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assert_eq!(
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&fixtures::BLOB_B[pos as usize..pos as usize + buf.len()],
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buf,
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"expected data to match"
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);
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#[allow(unused_assignments)]
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{
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pos += buf.len() as u64;
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}
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}
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// seeking to the end is okay…
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let p = r
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.seek(io::SeekFrom::Start(fixtures::BLOB_B.len() as u64))
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.await
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.expect("must not fail");
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pos = fixtures::BLOB_B.len() as u64;
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assert_eq!(pos, p);
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{
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// but it returns no more data.
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let mut buf: Vec<u8> = Vec::new();
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r.read_to_end(&mut buf).await.expect("must not fail");
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assert!(buf.is_empty(), "expected no more data to be read");
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}
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// seeking past the end…
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// should either be ok, but then return 0 bytes.
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// this matches the behaviour or a Cursor<Vec<u8>>.
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if let Ok(_pos) = r
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.seek(io::SeekFrom::Start(fixtures::BLOB_B.len() as u64 + 1))
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.await
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{
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let mut buf: Vec<u8> = Vec::new();
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r.read_to_end(&mut buf).await.expect("must not fail");
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assert!(buf.is_empty(), "expected no more data to be read");
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}
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// or not be okay.
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// TODO: this is only broken for the gRPC version
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// We expect seeking backwards or relative to the end to fail.
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// r.seek(io::SeekFrom::Current(-1))
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// .expect_err("SeekFrom::Current(-1) expected to fail");
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// r.seek(io::SeekFrom::Start(pos - 1))
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// .expect_err("SeekFrom::Start(pos-1) expected to fail");
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// r.seek(io::SeekFrom::End(0))
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// .expect_err("SeekFrom::End(_) expected to fail");
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})
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}
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253
tvix/castore/src/blobservice/tests/mod.rs
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253
tvix/castore/src/blobservice/tests/mod.rs
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//! This contains test scenarios that a given [BlobService] needs to pass.
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//! We use [rstest] and [rstest_reuse] to provide all services we want to test
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//! against, and then apply this template to all test functions.
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use rstest::*;
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use rstest_reuse::{self, *};
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use std::io;
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use tokio::io::AsyncReadExt;
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use tokio::io::AsyncSeekExt;
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use super::BlobService;
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use crate::blobservice;
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use crate::fixtures::BLOB_A;
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use crate::fixtures::BLOB_A_DIGEST;
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use crate::fixtures::BLOB_B;
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use crate::fixtures::BLOB_B_DIGEST;
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mod utils;
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use self::utils::make_grpc_blob_service_client;
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/// This produces a template, which will be applied to all individual test functions.
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/// See https://github.com/la10736/rstest/issues/130#issuecomment-968864832
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#[template]
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#[rstest]
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#[case::memory(blobservice::from_addr("memory://").await.unwrap())]
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#[case::grpc(make_grpc_blob_service_client().await)]
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#[case::sled(blobservice::from_addr("sled://").await.unwrap())]
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pub fn blob_services(#[case] blob_service: impl BlobService) {}
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/// Using [BlobService::has] on a non-existing blob should return false.
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#[apply(blob_services)]
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#[tokio::test]
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async fn has_nonexistent_false(blob_service: impl BlobService) {
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assert!(!blob_service
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.has(&BLOB_A_DIGEST)
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.await
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.expect("must not fail"));
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}
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/// Using [BlobService::chunks] on a non-existing blob should return Ok(None)
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#[apply(blob_services)]
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#[tokio::test]
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async fn chunks_nonexistent_false(blob_service: impl BlobService) {
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assert!(blob_service
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.chunks(&BLOB_A_DIGEST)
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.await
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.expect("must be ok")
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.is_none());
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}
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// TODO: do tests with `chunks`
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/// Trying to read a non-existing blob should return a None instead of a reader.
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#[apply(blob_services)]
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#[tokio::test]
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async fn not_found_read(blob_service: impl BlobService) {
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assert!(blob_service
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.open_read(&BLOB_A_DIGEST)
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.await
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.expect("must not fail")
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.is_none())
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}
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/// Put a blob in the store, check has, get it back.
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#[apply(blob_services)]
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// #[case::small(&fixtures::BLOB_A, &fixtures::BLOB_A_DIGEST)]
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// #[case::big(&fixtures::BLOB_B, &fixtures::BLOB_B_DIGEST)]
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#[tokio::test]
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async fn put_has_get(blob_service: impl BlobService) {
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// TODO: figure out how to instantiate this with BLOB_A and BLOB_B, as two separate cases
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for (blob_contents, blob_digest) in &[
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(&*BLOB_A, BLOB_A_DIGEST.clone()),
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(&*BLOB_B, BLOB_B_DIGEST.clone()),
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] {
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let mut w = blob_service.open_write().await;
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let l = tokio::io::copy(&mut io::Cursor::new(blob_contents), &mut w)
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.await
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.expect("copy must succeed");
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assert_eq!(
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blob_contents.len(),
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l as usize,
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"written bytes must match blob length"
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);
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let digest = w.close().await.expect("close must succeed");
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assert_eq!(*blob_digest, digest, "returned digest must be correct");
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assert!(
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blob_service.has(blob_digest).await.expect("must not fail"),
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"blob service should now have the blob"
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);
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let mut r = blob_service
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.open_read(blob_digest)
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.await
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.expect("open_read must succeed")
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.expect("must be some");
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let mut buf: Vec<u8> = Vec::new();
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let mut pinned_reader = std::pin::pin!(r);
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let l = tokio::io::copy(&mut pinned_reader, &mut buf)
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.await
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.expect("copy must succeed");
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assert_eq!(
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blob_contents.len(),
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l as usize,
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"read bytes must match blob length"
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);
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assert_eq!(&blob_contents[..], &buf, "read blob contents must match");
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}
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}
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/// Put a blob in the store, and seek inside it a bit.
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#[apply(blob_services)]
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#[tokio::test]
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async fn put_seek(blob_service: impl BlobService) {
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let mut w = blob_service.open_write().await;
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tokio::io::copy(&mut io::Cursor::new(&BLOB_B.to_vec()), &mut w)
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.await
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.expect("copy must succeed");
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w.close().await.expect("close must succeed");
|
||||||
|
|
||||||
|
// open a blob for reading
|
||||||
|
let mut r = blob_service
|
||||||
|
.open_read(&BLOB_B_DIGEST)
|
||||||
|
.await
|
||||||
|
.expect("open_read must succeed")
|
||||||
|
.expect("must be some");
|
||||||
|
|
||||||
|
let mut pos: u64 = 0;
|
||||||
|
|
||||||
|
// read the first 10 bytes, they must match the data in the fixture.
|
||||||
|
{
|
||||||
|
let mut buf = [0; 10];
|
||||||
|
r.read_exact(&mut buf).await.expect("must succeed");
|
||||||
|
|
||||||
|
assert_eq!(
|
||||||
|
&BLOB_B[pos as usize..pos as usize + buf.len()],
|
||||||
|
buf,
|
||||||
|
"expected first 10 bytes to match"
|
||||||
|
);
|
||||||
|
|
||||||
|
pos += buf.len() as u64;
|
||||||
|
}
|
||||||
|
// seek by 0 bytes, using SeekFrom::Start.
|
||||||
|
let p = r
|
||||||
|
.seek(io::SeekFrom::Start(pos))
|
||||||
|
.await
|
||||||
|
.expect("must not fail");
|
||||||
|
assert_eq!(pos, p);
|
||||||
|
|
||||||
|
// read the next 10 bytes, they must match the data in the fixture.
|
||||||
|
{
|
||||||
|
let mut buf = [0; 10];
|
||||||
|
r.read_exact(&mut buf).await.expect("must succeed");
|
||||||
|
|
||||||
|
assert_eq!(
|
||||||
|
&BLOB_B[pos as usize..pos as usize + buf.len()],
|
||||||
|
buf,
|
||||||
|
"expected data to match"
|
||||||
|
);
|
||||||
|
|
||||||
|
pos += buf.len() as u64;
|
||||||
|
}
|
||||||
|
|
||||||
|
// seek by 5 bytes, using SeekFrom::Start.
|
||||||
|
let p = r
|
||||||
|
.seek(io::SeekFrom::Start(pos + 5))
|
||||||
|
.await
|
||||||
|
.expect("must not fail");
|
||||||
|
pos += 5;
|
||||||
|
assert_eq!(pos, p);
|
||||||
|
|
||||||
|
// read the next 10 bytes, they must match the data in the fixture.
|
||||||
|
{
|
||||||
|
let mut buf = [0; 10];
|
||||||
|
r.read_exact(&mut buf).await.expect("must succeed");
|
||||||
|
|
||||||
|
assert_eq!(
|
||||||
|
&BLOB_B[pos as usize..pos as usize + buf.len()],
|
||||||
|
buf,
|
||||||
|
"expected data to match"
|
||||||
|
);
|
||||||
|
|
||||||
|
pos += buf.len() as u64;
|
||||||
|
}
|
||||||
|
|
||||||
|
// seek by 12345 bytes, using SeekFrom::
|
||||||
|
let p = r
|
||||||
|
.seek(io::SeekFrom::Current(12345))
|
||||||
|
.await
|
||||||
|
.expect("must not fail");
|
||||||
|
pos += 12345;
|
||||||
|
assert_eq!(pos, p);
|
||||||
|
|
||||||
|
// read the next 10 bytes, they must match the data in the fixture.
|
||||||
|
{
|
||||||
|
let mut buf = [0; 10];
|
||||||
|
r.read_exact(&mut buf).await.expect("must succeed");
|
||||||
|
|
||||||
|
assert_eq!(
|
||||||
|
&BLOB_B[pos as usize..pos as usize + buf.len()],
|
||||||
|
buf,
|
||||||
|
"expected data to match"
|
||||||
|
);
|
||||||
|
|
||||||
|
#[allow(unused_assignments)]
|
||||||
|
{
|
||||||
|
pos += buf.len() as u64;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// seeking to the end is okay…
|
||||||
|
let p = r
|
||||||
|
.seek(io::SeekFrom::Start(BLOB_B.len() as u64))
|
||||||
|
.await
|
||||||
|
.expect("must not fail");
|
||||||
|
pos = BLOB_B.len() as u64;
|
||||||
|
assert_eq!(pos, p);
|
||||||
|
|
||||||
|
{
|
||||||
|
// but it returns no more data.
|
||||||
|
let mut buf: Vec<u8> = Vec::new();
|
||||||
|
r.read_to_end(&mut buf).await.expect("must not fail");
|
||||||
|
assert!(buf.is_empty(), "expected no more data to be read");
|
||||||
|
}
|
||||||
|
|
||||||
|
// seeking past the end…
|
||||||
|
// should either be ok, but then return 0 bytes.
|
||||||
|
// this matches the behaviour or a Cursor<Vec<u8>>.
|
||||||
|
if let Ok(_pos) = r.seek(io::SeekFrom::Start(BLOB_B.len() as u64 + 1)).await {
|
||||||
|
let mut buf: Vec<u8> = Vec::new();
|
||||||
|
r.read_to_end(&mut buf).await.expect("must not fail");
|
||||||
|
assert!(buf.is_empty(), "expected no more data to be read");
|
||||||
|
}
|
||||||
|
// or not be okay.
|
||||||
|
|
||||||
|
// TODO: this is only broken for the gRPC version
|
||||||
|
// We expect seeking backwards or relative to the end to fail.
|
||||||
|
// r.seek(io::SeekFrom::Current(-1))
|
||||||
|
// .expect_err("SeekFrom::Current(-1) expected to fail");
|
||||||
|
|
||||||
|
// r.seek(io::SeekFrom::Start(pos - 1))
|
||||||
|
// .expect_err("SeekFrom::Start(pos-1) expected to fail");
|
||||||
|
|
||||||
|
// r.seek(io::SeekFrom::End(0))
|
||||||
|
// .expect_err("SeekFrom::End(_) expected to fail");
|
||||||
|
}
|
||||||
41
tvix/castore/src/blobservice/tests/utils.rs
Normal file
41
tvix/castore/src/blobservice/tests/utils.rs
Normal file
|
|
@ -0,0 +1,41 @@
|
||||||
|
use crate::blobservice::{BlobService, MemoryBlobService};
|
||||||
|
use crate::proto::blob_service_client::BlobServiceClient;
|
||||||
|
use crate::proto::GRPCBlobServiceWrapper;
|
||||||
|
use crate::{blobservice::GRPCBlobService, proto::blob_service_server::BlobServiceServer};
|
||||||
|
use tonic::transport::{Endpoint, Server, Uri};
|
||||||
|
|
||||||
|
/// Constructs and returns a gRPC BlobService.
|
||||||
|
/// The server part is a [MemoryBlobService], exposed via the
|
||||||
|
/// [GRPCBlobServiceWrapper], and connected through a DuplexStream
|
||||||
|
pub async fn make_grpc_blob_service_client() -> Box<dyn BlobService> {
|
||||||
|
let (left, right) = tokio::io::duplex(64);
|
||||||
|
|
||||||
|
// spin up a server, which will only connect once, to the left side.
|
||||||
|
tokio::spawn(async {
|
||||||
|
let blob_service = Box::<MemoryBlobService>::default() as Box<dyn BlobService>;
|
||||||
|
|
||||||
|
// spin up a new DirectoryService
|
||||||
|
let mut server = Server::builder();
|
||||||
|
let router = server.add_service(BlobServiceServer::new(GRPCBlobServiceWrapper::new(
|
||||||
|
blob_service,
|
||||||
|
)));
|
||||||
|
|
||||||
|
router
|
||||||
|
.serve_with_incoming(tokio_stream::once(Ok::<_, std::io::Error>(left)))
|
||||||
|
.await
|
||||||
|
});
|
||||||
|
|
||||||
|
// Create a client, connecting to the right side. The URI is unused.
|
||||||
|
let mut maybe_right = Some(right);
|
||||||
|
|
||||||
|
Box::new(GRPCBlobService::from_client(BlobServiceClient::new(
|
||||||
|
Endpoint::try_from("http://[::]:50051")
|
||||||
|
.unwrap()
|
||||||
|
.connect_with_connector(tower::service_fn(move |_: Uri| {
|
||||||
|
let right = maybe_right.take().unwrap();
|
||||||
|
async move { Ok::<_, std::io::Error>(right) }
|
||||||
|
}))
|
||||||
|
.await
|
||||||
|
.unwrap(),
|
||||||
|
)))
|
||||||
|
}
|
||||||
Loading…
Reference in a new issue