1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
|
#! /usr/bin/env python
# -*- coding: utf-8 -*-
# Author: Hamilton Kibbe <ham@hamiltonkib.be>
import os
import re
import math
import functools
import tempfile
import shutil
from argparse import Namespace
from itertools import chain
from pathlib import Path
import pytest
from ..rs274x import GerberFile
from ..cam import FileSettings
from .image_support import gerber_difference
deg_to_rad = lambda a: a/180 * math.pi
fail_dir = Path('gerbonara_test_failures')
reference_path = lambda reference: Path(__file__).parent / 'resources' / reference
@pytest.fixture
def temp_files(request):
with tempfile.NamedTemporaryFile(suffix='.gbr') as tmp_out_gbr,\
tempfile.NamedTemporaryFile(suffix='.png') as tmp_out_png:
yield Path(tmp_out_gbr.name), Path(tmp_out_png.name)
if request.node.rep_call.failed:
module, _, test_name = request.node.nodeid.rpartition('::')
_test, _, test_name = test_name.partition('_')
test_name, _, _ext = test_name.partition('.')
test_name = re.sub(r'[^\w\d]', '_', test_name)
fail_dir.mkdir(exist_ok=True)
perm_path_gbr = fail_dir / f'failure_{test_name}.gbr'
perm_path_png = fail_dir / f'failure_{test_name}.png'
shutil.copy(tmp_out_gbr.name, perm_path_gbr)
shutil.copy(tmp_out_png.name, perm_path_png)
print(f'Failing output saved to {perm_path_gbr}')
print(f'Reference file is {reference_path(request.node.funcargs["reference"])}')
print(f'Difference image saved to {perm_path_png}')
print(f'gerbv command line:')
print(f'gerbv {perm_path_gbr} {reference_path(request.node.funcargs["reference"])}')
to_gerbv_svg_units = lambda val, unit='mm': val*72 if unit == 'inch' else val/25.4*72
REFERENCE_FILES = [ l.strip() for l in '''
board_outline.GKO
example_outline_with_arcs.gbr
example_two_square_boxes.gbr
example_coincident_hole.gbr
example_cutin.gbr
example_cutin_multiple.gbr
example_flash_circle.gbr
example_flash_obround.gbr
example_flash_polygon.gbr
example_flash_rectangle.gbr
example_fully_coincident.gbr
example_guess_by_content.g0
example_holes_dont_clear.gbr
example_level_holes.gbr
example_not_overlapping_contour.gbr
example_not_overlapping_touching.gbr
example_overlapping_contour.gbr
example_overlapping_touching.gbr
example_simple_contour.gbr
example_single_contour_1.gbr
example_single_contour_2.gbr
example_single_contour_3.gbr
example_am_exposure_modifier.gbr
bottom_copper.GBL
bottom_mask.GBS
bottom_silk.GBO
eagle_files/copper_bottom_l4.gbr
eagle_files/copper_inner_l2.gbr
eagle_files/copper_inner_l3.gbr
eagle_files/copper_top_l1.gbr
eagle_files/profile.gbr
eagle_files/silkscreen_bottom.gbr
eagle_files/silkscreen_top.gbr
eagle_files/soldermask_bottom.gbr
eagle_files/soldermask_top.gbr
eagle_files/solderpaste_bottom.gbr
eagle_files/solderpaste_top.gbr
multiline_read.ger
test_fine_lines_x.gbr
test_fine_lines_y.gbr
top_copper.GTL
top_mask.GTS
top_silk.GTO
'''.splitlines() if l ]
MIN_REFERENCE_FILES = [
'example_two_square_boxes.gbr',
'example_outline_with_arcs.gbr',
'example_flash_circle.gbr',
'example_flash_polygon.gbr',
'example_flash_rectangle.gbr',
'example_simple_contour.gbr',
'example_am_exposure_modifier.gbr',
'bottom_copper.GBL',
'bottom_silk.GBO',
'eagle_files/copper_bottom_l4.gbr'
]
@pytest.mark.filterwarnings('ignore:Deprecated.*statement found.*:DeprecationWarning')
@pytest.mark.filterwarnings('ignore::SyntaxWarning')
@pytest.mark.parametrize('reference', REFERENCE_FILES)
def test_round_trip(temp_files, reference):
tmp_gbr, tmp_png = temp_files
ref = reference_path(reference)
GerberFile.open(ref).save(tmp_gbr)
mean, _max, hist = gerber_difference(ref, tmp_gbr, diff_out=tmp_png)
assert mean < 5e-5
assert hist[9] == 0
assert hist[3:].sum() < 5e-5*hist.size
TEST_ANGLES = [90, 180, 270, 30, 1.5, 10, 360, 1024, -30, -90]
TEST_OFFSETS = [(0, 0), (100, 0), (0, 100), (2, 0), (10, 100)]
@pytest.mark.filterwarnings('ignore:Deprecated.*statement found.*:DeprecationWarning')
@pytest.mark.filterwarnings('ignore::SyntaxWarning')
@pytest.mark.parametrize('reference', MIN_REFERENCE_FILES)
@pytest.mark.parametrize('angle', TEST_ANGLES)
def test_rotation(temp_files, reference, angle):
if 'flash_rectangle' in reference and angle == 1024:
# gerbv's rendering of this is broken, the hole is missing.
return
tmp_gbr, tmp_png = temp_files
ref = reference_path(reference)
f = GerberFile.open(ref)
f.rotate(deg_to_rad(angle))
f.save(tmp_gbr)
cx, cy = 0, to_gerbv_svg_units(10, unit='inch')
mean, _max, hist = gerber_difference(ref, tmp_gbr, diff_out=tmp_png, svg_transform=f'rotate({angle} {cx} {cy})')
assert mean < 1e-3 # relax mean criterion compared to above.
assert hist[9] == 0
@pytest.mark.filterwarnings('ignore:Deprecated.*statement found.*:DeprecationWarning')
@pytest.mark.filterwarnings('ignore::SyntaxWarning')
@pytest.mark.parametrize('reference', MIN_REFERENCE_FILES)
@pytest.mark.parametrize('angle', TEST_ANGLES)
@pytest.mark.parametrize('center', [(0, 0), (-10, -10), (10, 10), (10, 0), (0, -10), (-10, 10), (10, 20)])
def test_rotation_center(temp_files, reference, angle, center):
if 'flash_rectangle' in reference and angle in (30, 1024):
# gerbv's rendering of this is broken, the hole is missing.
return
tmp_gbr, tmp_png = temp_files
ref = reference_path(reference)
f = GerberFile.open(ref)
f.rotate(deg_to_rad(angle), center=center)
f.save(tmp_gbr)
# calculate circle center in SVG coordinates
size = (10, 10) # inches
cx, cy = to_gerbv_svg_units(center[0]), to_gerbv_svg_units(10, 'inch')-to_gerbv_svg_units(center[1], 'mm')
mean, _max, hist = gerber_difference(ref, tmp_gbr, diff_out=tmp_png,
svg_transform=f'rotate({angle} {cx} {cy})',
size=size)
assert mean < 1e-3
assert hist[9] < 50
assert hist[3:].sum() < 1e-3*hist.size
@pytest.mark.filterwarnings('ignore:Deprecated.*statement found.*:DeprecationWarning')
@pytest.mark.filterwarnings('ignore::SyntaxWarning')
@pytest.mark.parametrize('reference', MIN_REFERENCE_FILES)
@pytest.mark.parametrize('offset', TEST_OFFSETS)
def test_offset(temp_files, reference, offset):
tmp_gbr, tmp_png = temp_files
ref = reference_path(reference)
f = GerberFile.open(ref)
f.offset(*offset)
f.save(tmp_gbr, settings=FileSettings(unit=f.unit, number_format=(4,7)))
# flip y offset since svg's y axis is flipped compared to that of gerber
dx, dy = to_gerbv_svg_units(offset[0]), -to_gerbv_svg_units(offset[1])
mean, _max, hist = gerber_difference(ref, tmp_gbr, diff_out=tmp_png, svg_transform=f'translate({dx} {dy})')
assert mean < 1e-4
assert hist[9] == 0
@pytest.mark.filterwarnings('ignore:Deprecated.*statement found.*:DeprecationWarning')
@pytest.mark.filterwarnings('ignore::SyntaxWarning')
@pytest.mark.parametrize('reference', MIN_REFERENCE_FILES)
@pytest.mark.parametrize('angle', TEST_ANGLES)
@pytest.mark.parametrize('center', [(0, 0), (10, 0), (0, -10), (10, 20)])
@pytest.mark.parametrize('offset', [(0, 0), (100, 0), (0, 100), (100, 100), (100, 10)])
def test_combined(temp_files, reference, angle, center, offset):
if 'flash_rectangle' in reference and angle in (30, 1024):
# gerbv's rendering of this is broken, the hole is missing.
return
tmp_gbr, tmp_png = temp_files
ref = reference_path(reference)
f = GerberFile.open(ref)
f.rotate(deg_to_rad(angle), center=center)
f.offset(*offset)
f.save(tmp_gbr, settings=FileSettings(unit=f.unit, number_format=(4,7)))
size = (10, 10) # inches
cx, cy = to_gerbv_svg_units(center[0]), to_gerbv_svg_units(10, 'inch')-to_gerbv_svg_units(center[1], 'mm')
dx, dy = to_gerbv_svg_units(offset[0]), -to_gerbv_svg_units(offset[1])
mean, _max, hist = gerber_difference(ref, tmp_gbr, diff_out=tmp_png,
svg_transform=f'translate({dx} {dy}) rotate({angle} {cx} {cy})',
size=size)
assert mean < 1e-3
assert hist[9] < 100
assert hist[3:].sum() < 1e-3*hist.size
|
