verilator/test_regress/t/t_threads_crazy.py

#!/usr/bin/env python3
# DESCRIPTION: Verilator: Verilog Test driver/expect definition
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of either the GNU Lesser General Public License Version 3
# or the Perl Artistic License Version 2.0.
# SPDX-FileCopyrightText: 2024 Wilson Snyder
# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0

import vltest_bootstrap

test.scenarios('vltmt')

test.compile(verilator_flags2=['--cc'], threads=4, context_threads=2)

test.execute(fails=True)

test.file_grep(
    test.run_log_filename,
    r"%Error: .*\/verilated\.cpp:\d+: VerilatedContext has 2 threads but model 'Vt_threads_crazy' \(instantiated as 'top'\) was Verilated with --threads 4\."
)

test.passes()