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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright 2022 Jan Götte <code@jaseg.de>
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
import math
import pytest
from scipy.spatial import KDTree
from ..excellon import ExcellonFile
from ..rs274x import GerberFile
from ..cam import FileSettings
from ..graphic_objects import Flash
from .image_support import *
from .utils import *
from ..utils import Inch, MM
REFERENCE_FILES = {
'easyeda/Gerber_Drill_NPTH.DRL': (None, None),
'easyeda/Gerber_Drill_PTH.DRL': (None, 'easyeda/Gerber_TopLayer.GTL'),
# Altium uses an excellon format specification format that gerbv doesn't understand, so we have to fix that.
'altium-composite-drill/NC Drill/LimeSDR-QPCIe_1v2-SlotHoles.TXT': (('mm', 'trailing', 4), None),
'altium-composite-drill/NC Drill/LimeSDR-QPCIe_1v2-RoundHoles.TXT': (('mm', 'trailing', 4), 'altium-composite-drill/Gerber/LimeSDR-QPCIe_1v2.GTL'),
'pcb-rnd/power-art.xln': (None, 'pcb-rnd/power-art.gtl'),
'siemens/80101_0125_F200_ThruHoleNonPlated.ncd': (None, None),
'siemens/80101_0125_F200_ThruHolePlated.ncd': (None, 'siemens/80101_0125_F200_L01_Top.gdo'),
'siemens/80101_0125_F200_ContourPlated.ncd': (None, None),
'Target3001/IRNASIoTbank1.2.Drill': (None, 'Target3001/IRNASIoTbank1.2.Top'),
'altium-old-composite-drill.txt': (None, None),
'fritzing/combined.txt': (None, 'fritzing/combined.gtl'),
'ncdrill.DRD': (None, None),
'upverter/design_export.drl': (None, 'upverter/design_export.gtl'),
'diptrace/mainboard.drl': (None, 'diptrace/mainboard_Top.gbr'),
'diptrace/panel.drl': (None, None),
'diptrace/keyboard.drl': (None, 'diptrace/keyboard_Bottom.gbr'),
'zuken-emulated/Drill/8seg_Driver__routed_Drill_thru_plt.fdr/8seg_Driver__routed_Drill_thru_plt.fdr': (('inch', 'trailing', 4), 'zuken-emulated/Gerber/Conductive-1.fph'),
'zuken-emulated/Drill/8seg_Driver__routed_Drill_thru_nplt.fdr': (('inch', 'trailing', 4), None),
}
@filter_syntax_warnings
@pytest.mark.parametrize('reference', list(REFERENCE_FILES.items()), indirect=True)
def test_round_trip(reference, tmpfile):
reference, (unit_spec, _) = reference
tmp = tmpfile('Output excellon', '.drl')
print('unit spec', unit_spec)
f = ExcellonFile.open(reference)
f.save(tmp)
if reference.name == '80101_0125_F200_ContourPlated.ncd':
# gerbv does not support routed slots in excellon files at all and renders garbage for the reference file here
# due to its use of bare coordinates for routed slots. Thus, we skip this test (for now).
return
mean, _max, hist = gerber_difference(reference, tmp, diff_out=tmpfile('Difference', '.png'), ref_unit_spec=unit_spec)
assert mean < 5e-5
assert hist[9] == 0
assert hist[3:].sum() < 5e-5*hist.size
@filter_syntax_warnings
@pytest.mark.parametrize('reference', list(REFERENCE_FILES.items()), indirect=True)
def test_first_level_idempotence_svg(reference, tmpfile):
reference, (unit_spec, _) = reference
tmp = tmpfile('Output excellon', '.drl')
ref_svg = tmpfile('Reference SVG render', '.svg')
out_svg = tmpfile('Output SVG render', '.svg')
print('unit spec', unit_spec)
a = ExcellonFile.open(reference)
a.save(tmp)
b = ExcellonFile.open(tmp)
ref_svg.write_text(str(a.to_svg(fg='black', bg='white')))
out_svg.write_text(str(b.to_svg(fg='black', bg='white')))
mean, _max, hist = svg_difference(ref_svg, out_svg, diff_out=tmpfile('Difference', '.png'), background='white')
assert mean < 5e-5
assert hist[9] == 0
assert hist[3:].sum() < 5e-5*hist.size
@filter_syntax_warnings
@pytest.mark.parametrize('reference', list(REFERENCE_FILES.items()), indirect=True)
def test_idempotence(reference, tmpfile):
reference, (unit_spec, _) = reference
if reference.name == '80101_0125_F200_ContourPlated.ncd':
# this file contains a duplicate tool definition that we optimize out on our second pass.
# TODO see whether we can change things so we optimize this out on the first pass already. I'm not sure what
# went wrong there.
pytest.skip()
tmp_1 = tmpfile('First generation output', '.drl')
tmp_2 = tmpfile('Second generation output', '.drl')
f1 = ExcellonFile.open(reference)
f1.save(tmp_1)
print(f'{f1.import_settings=}')
f2 = ExcellonFile.open(tmp_1)
f2.save(tmp_2)
print(f'{f2.import_settings=}')
assert tmp_1.read_text() == tmp_2.read_text()
@filter_syntax_warnings
@pytest.mark.parametrize('reference', list(REFERENCE_FILES.items()), indirect=True)
def test_gerber_alignment(reference, tmpfile, print_on_error):
reference, (unit_spec, gerber) = reference
tmp = tmpfile('Output excellon', '.drl')
if gerber is None:
pytest.skip()
excf = ExcellonFile.open(reference)
gerf_path = reference_path(gerber)
print_on_error('Reference gerber file:', gerf_path)
gerf = GerberFile.open(gerf_path)
print('bounds excellon:', excf.bounding_box(MM))
print('bounds gerber:', gerf.bounding_box(MM))
excf.save(tmp)
flash_coords = []
for obj in gerf.objects:
if isinstance(obj, Flash):
x, y = obj.unit.convert_to(MM, obj.x), obj.unit.convert_to(MM, obj.y)
flash_coords.append((x, y))
tree = KDTree(flash_coords, copy_data=True)
tolerance = 0.05 # mm
matches, total = 0, 0
for obj in excf.objects:
if isinstance(obj, Flash):
if obj.plated in (True, None):
total += 1
x, y = obj.unit.convert_to(MM, obj.x), obj.unit.convert_to(MM, obj.y)
if tree.query_ball_point((x, y), r=tolerance):
matches += 1
# Some PCB tools, notably easyeda, are dumb and export certain pads as regions, not apertures. Thus, we have to
# tolerate some non-matches.
assert matches > 10
assert matches/total > 0.5
@filter_syntax_warnings
def test_syntax_error():
ref = reference_path('test_syntax_error.exc')
with pytest.raises(SyntaxError) as exc_info:
ExcellonFile.open(ref)
assert 'test_syntax_error.exc' in exc_info.value.msg
assert '12' in exc_info.value.msg # lineno
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