> ## Documentation Index
> Fetch the complete documentation index at: https://docs.superfloat.si/llms.txt
> Use this file to discover all available pages before exploring further.

# Test cost

> Decision log: test cost

Every commit: exhaustive sf4..sf10 (sf10 is \~1M pairs per op through the
Fraction oracle, \~45 s per op) plus sampled sf11..sf16 and hypothesis.
`pytest -m "not slow"` skips sf9/sf10 for a \~35 s loop while iterating.
Nightly: `tools/exhaustive.py --bits 16` checks all 4.29e9 pairs per binary
op with the vectorised reference against an independent int64 oracle
(2 to 8 minutes per op), ties random samples back to the scalar reference,
and then sweeps every code against every boundary-class code (both operand
orders, about 7M pairs per op) through the public scalar operators and the
Fraction oracle, counting the event transitions it crosses.


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