diff options
| -rw-r--r-- | tvix/castore/src/blobservice/tests.rs | 243 | ||||
| -rw-r--r-- | tvix/castore/src/blobservice/tests/mod.rs | 253 | ||||
| -rw-r--r-- | tvix/castore/src/blobservice/tests/utils.rs | 41 |
3 files changed, 294 insertions, 243 deletions
diff --git a/tvix/castore/src/blobservice/tests.rs b/tvix/castore/src/blobservice/tests.rs deleted file mode 100644 index 7480ca808225..000000000000 --- a/tvix/castore/src/blobservice/tests.rs +++ /dev/null @@ -1,243 +0,0 @@ -use std::io; -use std::pin::pin; - -use test_case::test_case; -use tokio::io::AsyncReadExt; -use tokio::io::AsyncSeekExt; - -use super::B3Digest; -use super::BlobService; -use super::MemoryBlobService; -use super::SledBlobService; -use crate::fixtures; - -// TODO: avoid having to define all different services we test against for all functions. -// maybe something like rstest can be used? - -fn gen_memory_blob_service() -> impl BlobService { - MemoryBlobService::default() -} -fn gen_sled_blob_service() -> impl BlobService { - SledBlobService::new_temporary().unwrap() -} - -// TODO: add GRPC blob service here. - -/// Using [BlobService::has] on a non-existing blob should return false -#[test_case(gen_memory_blob_service(); "memory")] -#[test_case(gen_sled_blob_service(); "sled")] -fn has_nonexistent_false(blob_service: impl BlobService) { - tokio::runtime::Runtime::new().unwrap().block_on(async { - assert!(!blob_service - .has(&fixtures::BLOB_A_DIGEST) - .await - .expect("must not fail")); - }) -} - -/// Trying to read a non-existing blob should return a None instead of a reader. -#[test_case(gen_memory_blob_service(); "memory")] -#[test_case(gen_sled_blob_service(); "sled")] -fn not_found_read(blob_service: impl BlobService) { - tokio::runtime::Runtime::new().unwrap().block_on(async { - assert!(blob_service - .open_read(&fixtures::BLOB_A_DIGEST) - .await - .expect("must not fail") - .is_none()) - }) -} - -/// Put a blob in the store, check has, get it back. -/// We test both with small and big blobs. -#[test_case(gen_memory_blob_service(), &fixtures::BLOB_A, &fixtures::BLOB_A_DIGEST; "memory-small")] -#[test_case(gen_sled_blob_service(), &fixtures::BLOB_A, &fixtures::BLOB_A_DIGEST; "sled-small")] -#[test_case(gen_memory_blob_service(), &fixtures::BLOB_B, &fixtures::BLOB_B_DIGEST; "memory-big")] -#[test_case(gen_sled_blob_service(), &fixtures::BLOB_B, &fixtures::BLOB_B_DIGEST; "sled-big")] -fn put_has_get(blob_service: impl BlobService, blob_contents: &[u8], blob_digest: &B3Digest) { - tokio::runtime::Runtime::new().unwrap().block_on(async { - let mut w = blob_service.open_write().await; - - let l = tokio::io::copy(&mut io::Cursor::new(blob_contents), &mut w) - .await - .expect("copy must succeed"); - assert_eq!( - blob_contents.len(), - l as usize, - "written bytes must match blob length" - ); - - let digest = w.close().await.expect("close must succeed"); - - assert_eq!(*blob_digest, digest, "returned digest must be correct"); - - assert!( - blob_service.has(blob_digest).await.expect("must not fail"), - "blob service should now have the blob" - ); - - let mut r = blob_service - .open_read(blob_digest) - .await - .expect("open_read must succeed") - .expect("must be some"); - - let mut buf: Vec<u8> = Vec::new(); - let mut pinned_reader = pin!(r); - let l = tokio::io::copy(&mut pinned_reader, &mut buf) - .await - .expect("copy must succeed"); - // let l = io::copy(&mut r, &mut buf).expect("copy must succeed"); - - assert_eq!( - blob_contents.len(), - l as usize, - "read bytes must match blob length" - ); - - assert_eq!(blob_contents, buf, "read blob contents must match"); - }) -} - -/// Put a blob in the store, and seek inside it a bit. -#[test_case(gen_memory_blob_service(); "memory")] -#[test_case(gen_sled_blob_service(); "sled")] -fn put_seek(blob_service: impl BlobService) { - tokio::runtime::Runtime::new().unwrap().block_on(async { - let mut w = blob_service.open_write().await; - - tokio::io::copy(&mut io::Cursor::new(&fixtures::BLOB_B.to_vec()), &mut w) - .await - .expect("copy must succeed"); - w.close().await.expect("close must succeed"); - - // open a blob for reading - let mut r = blob_service - .open_read(&fixtures::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!( - &fixtures::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!( - &fixtures::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!( - &fixtures::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!( - &fixtures::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(fixtures::BLOB_B.len() as u64)) - .await - .expect("must not fail"); - pos = fixtures::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(fixtures::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"); - }) -} diff --git a/tvix/castore/src/blobservice/tests/mod.rs b/tvix/castore/src/blobservice/tests/mod.rs new file mode 100644 index 000000000000..b1ae66bac40d --- /dev/null +++ b/tvix/castore/src/blobservice/tests/mod.rs @@ -0,0 +1,253 @@ +//! This contains test scenarios that a given [BlobService] needs to pass. +//! We use [rstest] and [rstest_reuse] to provide all services we want to test +//! against, and then apply this template to all test functions. + +use rstest::*; +use rstest_reuse::{self, *}; +use std::io; +use tokio::io::AsyncReadExt; +use tokio::io::AsyncSeekExt; + +use super::BlobService; +use crate::blobservice; +use crate::fixtures::BLOB_A; +use crate::fixtures::BLOB_A_DIGEST; +use crate::fixtures::BLOB_B; +use crate::fixtures::BLOB_B_DIGEST; + +mod utils; +use self::utils::make_grpc_blob_service_client; + +/// This produces a template, which will be applied to all individual test functions. +/// See https://github.com/la10736/rstest/issues/130#issuecomment-968864832 +#[template] +#[rstest] +#[case::memory(blobservice::from_addr("memory://").await.unwrap())] +#[case::grpc(make_grpc_blob_service_client().await)] +#[case::sled(blobservice::from_addr("sled://").await.unwrap())] +pub fn blob_services(#[case] blob_service: impl BlobService) {} + +/// Using [BlobService::has] on a non-existing blob should return false. +#[apply(blob_services)] +#[tokio::test] +async fn has_nonexistent_false(blob_service: impl BlobService) { + assert!(!blob_service + .has(&BLOB_A_DIGEST) + .await + .expect("must not fail")); +} + +/// Using [BlobService::chunks] on a non-existing blob should return Ok(None) +#[apply(blob_services)] +#[tokio::test] +async fn chunks_nonexistent_false(blob_service: impl BlobService) { + assert!(blob_service + .chunks(&BLOB_A_DIGEST) + .await + .expect("must be ok") + .is_none()); +} + +// TODO: do tests with `chunks` + +/// Trying to read a non-existing blob should return a None instead of a reader. +#[apply(blob_services)] +#[tokio::test] +async fn not_found_read(blob_service: impl BlobService) { + assert!(blob_service + .open_read(&BLOB_A_DIGEST) + .await + .expect("must not fail") + .is_none()) +} + +/// Put a blob in the store, check has, get it back. +#[apply(blob_services)] +// #[case::small(&fixtures::BLOB_A, &fixtures::BLOB_A_DIGEST)] +// #[case::big(&fixtures::BLOB_B, &fixtures::BLOB_B_DIGEST)] +#[tokio::test] +async fn put_has_get(blob_service: impl BlobService) { + // TODO: figure out how to instantiate this with BLOB_A and BLOB_B, as two separate cases + for (blob_contents, blob_digest) in &[ + (&*BLOB_A, BLOB_A_DIGEST.clone()), + (&*BLOB_B, BLOB_B_DIGEST.clone()), + ] { + let mut w = blob_service.open_write().await; + + let l = tokio::io::copy(&mut io::Cursor::new(blob_contents), &mut w) + .await + .expect("copy must succeed"); + assert_eq!( + blob_contents.len(), + l as usize, + "written bytes must match blob length" + ); + + let digest = w.close().await.expect("close must succeed"); + + assert_eq!(*blob_digest, digest, "returned digest must be correct"); + + assert!( + blob_service.has(blob_digest).await.expect("must not fail"), + "blob service should now have the blob" + ); + + let mut r = blob_service + .open_read(blob_digest) + .await + .expect("open_read must succeed") + .expect("must be some"); + + let mut buf: Vec<u8> = Vec::new(); + let mut pinned_reader = std::pin::pin!(r); + let l = tokio::io::copy(&mut pinned_reader, &mut buf) + .await + .expect("copy must succeed"); + + assert_eq!( + blob_contents.len(), + l as usize, + "read bytes must match blob length" + ); + + assert_eq!(&blob_contents[..], &buf, "read blob contents must match"); + } +} + +/// Put a blob in the store, and seek inside it a bit. +#[apply(blob_services)] +#[tokio::test] +async fn put_seek(blob_service: impl BlobService) { + let mut w = blob_service.open_write().await; + + tokio::io::copy(&mut io::Cursor::new(&BLOB_B.to_vec()), &mut w) + .await + .expect("copy must succeed"); + 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"); +} diff --git a/tvix/castore/src/blobservice/tests/utils.rs b/tvix/castore/src/blobservice/tests/utils.rs new file mode 100644 index 000000000000..706c4b5e4319 --- /dev/null +++ b/tvix/castore/src/blobservice/tests/utils.rs @@ -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(), + ))) +} |