nx_synthetic_upstream.nx

nx_synthetic_upstream.nx -- canned-response replay for adapter testing. module: nishi-core.ingest.synthetic_upstream depends: nishi-core.io.syscalls, nishi-core.io.iso8601, nishi-core.io.json, nishi-core.io.csv disk_kb: 6 capability: CORE_IO license_tier: PUBLIC_NISHI_SUBSTRATE genealogy_id: nock_mock_pattern_software_testing + wiremock_2011_http_stub_pattern + vcr_python_cassette_pattern + nishi_build_the_system_cardinal_2026 Per cardinal [[feedback-build-the-system-not-manual-output]]: this is THE SYSTEM that proves the ingestion substrate works. Replays CANNED HTTP responses from disk fixtures back to adapter code, so every adapter runs end-to-end (URL parse → "fetch" → JSON/CSV parse → canonicalize → license guard → JSONL emit) WITHOUT needing real network. Once this primitive ships, every NX-INGEST adapter shipped this arc gets exercised in a substrate-level smoke test that proves: - the URL builder produces the right query string - the canned response gets parsed correctly - the canonicalize step extracts the right fields - the license-tier viral propagation works - the JSONL emit shape matches expectations Substrate runs in CI without internet. Once nx_dns_resolve glue lands, the SAME adapter code (Cardinal 19) swaps the synthetic upstream for real nx_https_get with no caller change.