Coverage for tests/klayout/netlist_expander_test.py: 100%
37 statements
« prev ^ index » next coverage.py v7.6.9, created at 2024-12-17 17:24 +0000
« prev ^ index » next coverage.py v7.6.9, created at 2024-12-17 17:24 +0000
1#
2# --------------------------------------------------------------------------------
3# SPDX-FileCopyrightText: 2024 Martin Jan Köhler and Harald Pretl
4# Johannes Kepler University, Institute for Integrated Circuits.
5#
6# This file is part of KPEX
7# (see https://github.com/martinjankoehler/klayout-pex).
8#
9# This program is free software: you can redistribute it and/or modify
10# it under the terms of the GNU General Public License as published by
11# the Free Software Foundation, either version 3 of the License, or
12# (at your option) any later version.
13#
14# This program is distributed in the hope that it will be useful,
15# but WITHOUT ANY WARRANTY; without even the implied warranty of
16# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17# GNU General Public License for more details.
18#
19# You should have received a copy of the GNU General Public License
20# along with this program. If not, see <http://www.gnu.org/licenses/>.
21# SPDX-License-Identifier: GPL-3.0-or-later
22# --------------------------------------------------------------------------------
23#
24from __future__ import annotations
26import allure
27import os
28import tempfile
29import unittest
31import klayout.db as kdb
33from klayout_pex.klayout.lvsdb_extractor import KLayoutExtractionContext
34from klayout_pex.klayout.netlist_expander import NetlistExpander
35from klayout_pex.log import (
36 debug,
37)
38from klayout_pex.common.capacitance_matrix import CapacitanceMatrix
39from klayout_pex.tech_info import TechInfo
42@allure.parent_suite("Unit Tests")
43@allure.tag("Netlist", "Netlist Expansion")
44class Test(unittest.TestCase):
45 @property
46 def klayout_testdata_dir(self) -> str:
47 return os.path.realpath(os.path.join(__file__, '..', '..', '..',
48 'testdata', 'fastercap'))
50 @property
51 def tech_info_json_path(self) -> str:
52 return os.path.realpath(os.path.join(__file__, '..', '..', '..',
53 'build', 'sky130A_tech.pb.json'))
55 def test_netlist_expansion(self):
56 exp = NetlistExpander()
58 cell_name = 'nmos_diode2'
60 lvsdb = kdb.LayoutVsSchematic()
61 lvsdb_path = os.path.join(self.klayout_testdata_dir, f"{cell_name}.lvsdb.gz")
62 lvsdb.read(lvsdb_path)
64 csv_path = os.path.join(self.klayout_testdata_dir, f"{cell_name}_FasterCap_Result_Matrix.csv")
66 cap_matrix = CapacitanceMatrix.parse_csv(csv_path, separator=';')
68 tech = TechInfo.from_json(self.tech_info_json_path,
69 dielectric_filter=None)
71 pex_context = KLayoutExtractionContext.prepare_extraction(top_cell=cell_name,
72 lvsdb=lvsdb,
73 tech=tech,
74 blackbox_devices=False)
75 expanded_netlist = exp.expand(extracted_netlist=pex_context.lvsdb.netlist(),
76 top_cell_name=pex_context.top_cell.name,
77 cap_matrix=cap_matrix,
78 blackbox_devices=False)
79 out_path = tempfile.mktemp(prefix=f"{cell_name}_expanded_netlist_", suffix=".cir")
80 spice_writer = kdb.NetlistSpiceWriter()
81 expanded_netlist.write(out_path, spice_writer)
82 debug(f"Wrote expanded netlist to: {out_path}")
84 allure.attach.file(csv_path, attachment_type=allure.attachment_type.CSV)
85 allure.attach.file(out_path, attachment_type=allure.attachment_type.TEXT)