yosys/tests/functional/README.md

Tests for the functional backend use pytest as a testrunner.

Run with pytest -v

Pytest options you might want:

• -v: More progress indication.

• --basetemp tmp: Store test files (including vcd results) in tmp. CAREFUL: contents of tmp will be deleted

• -k <pattern>: Run only tests that contain the pattern, e.g. -k cxx or -k smt or -k demux or -k 'cxx[demux

• -s: Don't hide stdout/stderr from the test code.

Custom options for functional backend tests:

• --per-cell N: Run only N tests for each cell.