Nim Libp2p Testing

ift-ts:qa:ift:2026q3-nim-libp2p-testing

Description

Continue expanding nim-libp2p testing coverage, documentation, and tooling with focus on feature work and stability improvements carried from Q2. Support libp2p work where QA help is expected, including Autotls, opt-in dial ranking and backoffs, QUIC-related validation, dual-stack IPv4/IPv6 coverage, and maintenance work.

Task List

Autotls Protocol Testing

• fully qualified name: ift-ts:qa:ift:2026q3-nim-libp2p-testing:autotls
• owner: radek
• status: not started
• start-date: 2026/07/01
• end-date: 2026/09/30

Description

Implement unit and integration tests for the Autotls protocol.

Deliverables

• PRs with links to added tests

Opt-in Dial Ranking and Backoffs Testing

• fully qualified name: ift-ts:qa:ift:2026q3-nim-libp2p-testing:opt-in-dial-ranking-and-backoffs
• owner: radek
• status: not started
• start-date: 2026/07/01
• end-date: 2026/09/30

Description

Implement tests for opt-in dial ranking and backoff behavior.

Deliverables

• PRs with dial ranking and backoff tests
• Issues / reports for uncovered edge cases or regressions

QUIC Repository Testing

• fully qualified name: ift-ts:qa:ift:2026q3-nim-libp2p-testing:quic-repo
• owner: radek
• status: in progress (40%)
• start-date: 2026/07/01
• end-date: 2026/09/30

Description

Add QA coverage in the QUIC repository where it would be most useful for the broader libp2p effort. Focus on targeted tests that can catch transport-level issues earlier and complement the nim-libp2p coverage.

Deliverables

• vacp2p/nim-lsquic#105 test: lifecycle guards and stream peer-reset behavior
• vacp2p/nim-lsquic#104 test: connection
• vacp2p/nim-lsquic#102 test: improvements 2
• vacp2p/nim-lsquic#100 test: improvements
• PRs with tests added or improved in the QUIC repository
• Issues / reports for uncovered transport bugs, edge cases, or missing scenarios

Dual-Stack IPv4 and IPv6 Testing

• fully qualified name: ift-ts:qa:ift:2026q3-nim-libp2p-testing:dual-stack-ipv4-ipv6
• owner: Radek
• status: done
• start-date: 2026/07/01
• end-date: 2026/07/14

Description

Implement tests for dual-stack IPv4 and IPv6 behavior on the libp2p side. Cover scenarios that can catch UDP and address-family issues, especially around mixed IPv4/IPv6 environments and regressions that should be detected by unit or integration tests.

Deliverables

• vacp2p/nim-libp2p#2746 test(misc): dual stack 5
• vacp2p/nim-libp2p#2756 service-disco: extend IP-similarity scoring to IPv6
• vacp2p/nim-libp2p#2757 wildcard-resolver: :: expansion unconditionally adds IPv4 interfaces, assuming a dual-stack socket
• PRs with dual-stack IPv4 and IPv6 tests
• Issues / reports for regressions or uncovered gaps in mixed-stack behavior
• vacp2p/nim-libp2p#2698 test(transports): dual stack 1
• vacp2p/nim-libp2p#2704 test(transports): dual stack 2
• vacp2p/nim-libp2p#2712 test(ipaddr): dual stack 3
• vacp2p/nim-libp2p#2733 test(autonat): dual stack 4
• vacp2p/nim-libp2p#2703 transports: tcp port reuse binds the wrong address family on dual-stack nodes
• vacp2p/nim-libp2p#2710 ipaddr: isPrivate classifies every IPv6 address as public, so autonat canDial dials private IPv6 targets
• vacp2p/nim-libp2p#2711 ipaddr: hasPublicIPAddress only accepts IPv4, so IPv6-only public hosts fail autotls setup
• vacp2p/nim-libp2p#2731 ipaddr: ipAddrMatches only compares the ip4 component, so autonat v2 never skips amplification attack prevention for IPv6 clients

Maintenance

• fully qualified name: ift-ts:qa:ift:2026q3-nim-libp2p-testing:maintenance
• owner: radek
• status: in progress (50%)
• start-date: 2026/07/01
• end-date: 2026/09/30

Description

Provide ongoing QA maintenance support for nim-libp2p throughout Q3. Cover small regression fixes, flaky-test follow-ups, test updates needed by upstream code changes, and issue-driven validation work that does not fit a larger feature-specific task.

Deliverables

• libp2p/unified-testing#119 feat: add nim to kad-dht and enable quic in hole-punch
• libp2p/unified-testing#78 feat: hole-punch nim-v2.2 peer
• libp2p/unified-testing#77 feat: transport nim-v2.2
• vacp2p/nim-libp2p#2820 kad-dht: should handleAddProvider require provider keys to be valid multihashes?
• vacp2p/nim-libp2p#2824 chore(kad-dht): loosen validation on AddProvider for interop tests
• vacp2p/nim-libp2p#2826 kad-dht: closerPeers advertise a peer’s observed connection address
• vacp2p/nim-libp2p#2832 test(interop): kad-dht for unified-testing
• vacp2p/nim-libp2p#2840 test(interop): build unified-testing dockerfiles workflow
• vacp2p/nim-libp2p#2848 kad-dht: should closerPeers exclude the requester?
• vacp2p/nim-libp2p#2802 test(identify): repro test for #2800
• vacp2p/nim-libp2p#2800 identify: outgoing identify hangs against peers that don’t serve identify
• vacp2p/nim-libp2p#2806 dcutr: quic hole punching dials from both peers
• vacp2p/nim-libp2p#2793 fix(identify): handle missing optional pub key
• vacp2p/nim-libp2p#2786 identify: absent publicKey is rejected and drops the connection
• vacp2p/nim-libp2p#2783 fix(multiaddress): decode empty optional observedAddr
• vacp2p/nim-libp2p#2781 identify: empty observedAddr aborts message decode and drops the connection
• vacp2p/nim-libp2p#2759 test(transports): accept fails
• vacp2p/nim-libp2p#2755 transports: no tests for what happens when a transport’s accept fails
• vacp2p/nim-libp2p#2725 test(transports): improve hanging test
• vacp2p/nim-libp2p#2714 test(transports): multiple addresses
• vacp2p/nim-libp2p#2713 transports: inconsistency when stopping pending accept