dangernoodle-io / TaipanMiner / 24933229211

90%

push

github

test(asic): extract chip_idx routing helper (TA-234) (#195)

eighth target of the TA-234 seam-for-testability pass. asic_task's
chip-response routing math (asic_addr / addr_interval) was inline
with a one-liner comment about the 256/1=0 overflow trap. extract
to asic_chip_routing.{c,h} as a single pure function:

  int asic_chip_routing_index(uint8_t asic_addr, int chip_count)
  → chip index in [0, chip_count) or -1

bounds-checks chip_count, computes addr_interval safely, validates
the resulting index. catches the overflow case explicitly instead
of relying on unobvious uint16_t arithmetic.

10 host tests cover single-chip, 2-chip boundary, 4-chip ranges,
and invalid chip_count values (0, negative, > 256). preventive
coverage for multi-chip routing (TA-221, TA-227 silicon-routing
confusion territory).

251 of 310 branches covered (80.97%)

Branch coverage included in aggregate %.

8 of 8 new or added lines in 1 file covered. (100.0%)

771 of 790 relevant lines covered (97.59%)

526435.49 hits per line