verilator/test_regress/t/t_dump_json.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 json
import vltest_bootstrap

test.scenarios('vlt')
test.top_filename = "t/t_dump.v"

out_filename = test.obj_dir + "/V" + test.name + "_002_cellsort.tree.json"

test.lint(v_flags=["--dump-tree-json --no-json-edit-nums"])

# not files_identical as output is too sensitive to internal changes
test.file_grep(out_filename, r'"type":"MODULE"')

# check JSON is parsable
with open(out_filename, 'r', encoding="utf8") as fh:
    json.load(fh)

test.passes()