Add backend timeout test for entity-bytes from IPIP-402 about gateway-conformance HOT 3 CLOSED

@lidel I took the opportunity to learn about IPLD and car files,

Made a PR in ipld/go-car#457
Which enabled: #85

This is the code I use to generate the car files:

dd if=/dev/urandom of="file-3k-and-3-blocks.bin" bs=1024 count=3
CID=$(ipfs add ./file-3k-and-3-blocks.bin --chunker=size-1024 -q)
ipfs dag export $CID > file-3k-and-3-blocks.car
REMOVE_BLOCK=$(ipfs dag get $CID | jq '.Links[1].Hash["/"]' -r)
echo $REMOVE_BLOCK | car filter --version 1 --inverse ./file-3k-and-3-blocks.car ./file-3k-and-3-blocks-missing-block.car 

Let me know if that works for you!

from gateway-conformance.

Thank you @laurentsenta, this ability to filter CAR contents per CID is great addition to our CAR tooling ❤️

from gateway-conformance.

As for logistics, we could write custom go code, or it is possible to do it semi-manually with two Kubo repos: create big file from /dev/urandom, then export individual blocks via ipfs block get (from node being offline) and then on second node import them via ipfs block put and create dag-cbor envelope document that links to these CIDs (json → ipfs dag put), and then do ipfs dag export of the DAG of the envelope → produced .car fixture will only have 2 blocks, and the rest of the original DAG won't ever be available.

from gateway-conformance.