# step: prior carriage · wai-rs and prior_carriage_verify.py
# order: 335
# features: prior_carriage
# independent: prior-carriage live python3 -I live-conformance/prior_carriage_verify.py live-conformance/prior-carriage
#
# Prior carriage (extensions/prior-carriage.md §15 to §19; extensions/http-delivery.md §8.7,
# §8.8, §12.5): the module's unit tests (set roots, the hints of a catalog entry and of a
# playlist, a fetch past a tampered mirror, the RFC 9842 field values, a set coded against
# another and each check of a coded response, a plan's break-even, successor and refusals,
# SPDX licence expressions and usage statements, counter mode against NIST SP 800-38A F.5.1,
# a set sealed and opened, held sets per site, a chunk tree's root equal to the BLAKE3 hash
# for every piece size and length tried, a flipped piece refused at that piece) and
# tests/prior_carriage.rs (the committed corpus regenerates byte for byte from the sets other
# corpora commit, every case gets its stated outcome, http-delivery §13 lists exactly the
# reasons the reference reports for §8.7 and §8.8, and prior-carriage §20 lists its own);
# and, in the step of every independent verifier above, the corpus's second implementation, prior_carriage_verify.py, written from
# the texts and sharing no code with wai-rs, which decodes Zstandard with its own RFC 8878
# decoder (_rfc8878_zstd.py), opens sealed sets with its own AES-128 (_fips197_aes.py),
# reads ai-usage statements with ai_usage_verify.py, hashes with the shared _blake3.py, runs the stock-tool check where the Zstandard tool is on the
# PATH, requires every mutated copy of the corpus to fail and drops each of its own checks
# in turn; standard library only, run isolated (-I).
set -euo pipefail
(cd wai-rs && cargo test --no-default-features --features "$WAI_FEATURES" --lib -- prior_carriage::)
(cd wai-rs && cargo test --no-default-features --features "$WAI_FEATURES" --test prior_carriage)