nx_ipp_codec_test.nx

nx_ipp_codec_test.nx -- gate for the sovereign IPP/1.1 wire codec (R0). Proves, with unique exit codes per invariant (no_silent_failure: you know exactly which broke): 1x encode a Get-Printer-Attributes request byte-exactly per RFC 8010 (lengths re-derived independently in this test, header/group/end bytes spot-checked, total length asserted) 2x round-trip: parse every attribute back out by name, value bytes match 3x parse a STOPPED-printer response and surface printer-state(=5) + printer-state-reasons ('media-empty') -- the anti-silent-failure proof (Brother hides these; we surface them) 4x defensive liar-kill: truncated header and a value-length overrun both yield NX_IPP_MALFORMED 5x a missing attribute yields NX_IPP_NOT_FOUND (not a false hit, not MALFORMED) All inputs are constructed from the RFC byte-layout rules, independent of the encoder's own code, so a bug in the encoder cannot mask a bug in the parser or vice-versa. expect_exit: 0 license_tier: ORIGINAL