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-#! /usr/bin/env python
-# -*- coding: utf-8 -*-
-# Author: Jan Götte <code@jaseg.de>
-import math
-
-from PIL import Image
-import pytest
-
-from ..rs274x import GerberFile
-from ..cam import FileSettings
-
-from .image_support import *
-from .utils import *
-
-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
- open_outline_altium.gbr
- easyeda/Gerber_TopSolderMaskLayer.GTS
- easyeda/Gerber_TopSilkLayer.GTO
- easyeda/Gerber_BottomSolderMaskLayer.GBS
- easyeda/Gerber_BoardOutline.GKO
- easyeda/Gerber_TopLayer.GTL
- easyeda/Gerber_BottomLayer.GBL
- easyeda/Gerber_TopPasteMaskLayer.GTP
- allegro-2/MinnowMax_RevA1_GAF_Gerber/MinnowMax_lyr2.art
- allegro-2/MinnowMax_RevA1_GAF_Gerber/MinnowMax_lyr3.art
- allegro-2/MinnowMax_RevA1_GAF_Gerber/MinnowMax_fab.art
- allegro-2/MinnowMax_RevA1_GAF_Gerber/MinnowMax_lyr10_GAF.art
- allegro-2/MinnowMax_RevA1_GAF_Gerber/MinnowMax_lyr7.art
- allegro-2/MinnowMax_RevA1_GAF_Gerber/MinnowMax_sps.art
- allegro-2/MinnowMax_RevA1_GAF_Gerber/MinnowMax_lyr6.art
- allegro-2/MinnowMax_RevA1_GAF_Gerber/MinnowMax_lyr1_GAF.art
- allegro-2/MinnowMax_RevA1_GAF_Gerber/MinnowMax_assy.art
- allegro-2/MinnowMax_RevA1_GAF_Gerber/MinnowMax_smc_GAF.art
- allegro-2/MinnowMax_RevA1_GAF_Gerber/MinnowMax_lyr4.art
- allegro-2/MinnowMax_RevA1_GAF_Gerber/MinnowMax_lyr5.art
- allegro-2/MinnowMax_RevA1_GAF_Gerber/MinnowMax_bslk.art
- allegro-2/MinnowMax_RevA1_GAF_Gerber/MinnowMax_spc.art
- allegro-2/MinnowMax_RevA1_GAF_Gerber/MinnowMax_tslk_GAF.art
- allegro-2/MinnowMax_RevA1_GAF_Gerber/MinnowMax_lyr8.art
- allegro-2/MinnowMax_RevA1_GAF_Gerber/MinnowMax_sms_GAF.art
- allegro-2/MinnowMax_RevA1_GAF_Gerber/MinnowMax_lyr9.art
- eagle-newer/solderpaste_bottom.gbr
- eagle-newer/silkscreen_bottom.gbr
- eagle-newer/profile.gbr
- eagle-newer/copper_bottom.gbr
- eagle-newer/soldermask_top.gbr
- eagle-newer/solderpaste_top.gbr
- eagle-newer/soldermask_bottom.gbr
- eagle-newer/silkscreen_top.gbr
- eagle-newer/copper_top.gbr
- altium-composite-drill/Gerber/LimeSDR-QPCIe_1v2.G4
- altium-composite-drill/Gerber/LimeSDR-QPCIe_1v2.G9
- altium-composite-drill/Gerber/LimeSDR-QPCIe_1v2.GBL
- altium-composite-drill/Gerber/LimeSDR-QPCIe_1v2.GTO
- altium-composite-drill/Gerber/LimeSDR-QPCIe_1v2.G11
- altium-composite-drill/Gerber/LimeSDR-QPCIe_1v2.G1
- altium-composite-drill/Gerber/LimeSDR-QPCIe_1v2.GBP
- altium-composite-drill/Gerber/LimeSDR-QPCIe_1v2.G2
- altium-composite-drill/Gerber/LimeSDR-QPCIe_1v2.GM15
- altium-composite-drill/Gerber/LimeSDR-QPCIe_1v2.GTS
- altium-composite-drill/Gerber/LimeSDR-QPCIe_1v2.G6
- altium-composite-drill/Gerber/LimeSDR-QPCIe_1v2.G7
- altium-composite-drill/Gerber/LimeSDR-QPCIe_1v2.G3
- altium-composite-drill/Gerber/LimeSDR-QPCIe_1v2.GPB
- altium-composite-drill/Gerber/LimeSDR-QPCIe_1v2.GM1
- altium-composite-drill/Gerber/LimeSDR-QPCIe_1v2.G12
- altium-composite-drill/Gerber/LimeSDR-QPCIe_1v2.GBS
- altium-composite-drill/Gerber/LimeSDR-QPCIe_1v2.GTL
- altium-composite-drill/Gerber/LimeSDR-QPCIe_1v2.G10
- altium-composite-drill/Gerber/LimeSDR-QPCIe_1v2.GM14
- altium-composite-drill/Gerber/LimeSDR-QPCIe_1v2.G5
- altium-composite-drill/Gerber/LimeSDR-QPCIe_1v2.GTP
- altium-composite-drill/Gerber/LimeSDR-QPCIe_1v2.GBO
- altium-composite-drill/Gerber/LimeSDR-QPCIe_1v2.G8
- altium-composite-drill/Gerber/LimeSDR-QPCIe_1v2.GPT
- geda/driver.topmask.gbr
- geda/controller.top.gbr
- geda/controller.bottom.gbr
- geda/driver.bottommask.gbr
- geda/driver.top.gbr
- geda/driver.bottom.gbr
- geda/controller.topsilk.gbr
- geda/controller.fab.gbr
- geda/driver.topsilk.gbr
- geda/controller.group3.gbr
- geda/controller.topmask.gbr
- geda/driver.group5.gbr
- geda/controller.bottommask.gbr
- geda/driver.fab.gbr
- pcb-rnd/power-art.gko
- pcb-rnd/power-art.ast
- pcb-rnd/power-art.gtl
- pcb-rnd/power-art.lht
- pcb-rnd/power-art.gto
- pcb-rnd/power-art.gtp
- pcb-rnd/power-art.asb
- pcb-rnd/power-art.gbp
- pcb-rnd/power-art.gbs
- pcb-rnd/power-art.gbl
- pcb-rnd/power-art.fab
- pcb-rnd/power-art.gbo
- pcb-rnd/power-art.gts
- siemens/80101_0125_F200_L04.gdo
- siemens/80101_0125_F200_L12_Bottom.gdo
- siemens/80101_0125_F200_L11.gdo
- siemens/80101_0125_F200_L10.gdo
- siemens/80101_0125_F200_SolderPasteTop.gdo
- siemens/80101_0125_F200_SoldermaskTop.gdo
- siemens/80101_0125_F200_L06.gdo
- siemens/80101_0125_F200_L02.gdo
- siemens/80101_0125_F200_SilkscreenBottom.gdo
- siemens/80101_0125_F200_SoldermaskBottom.gdo
- siemens/80101_0125_F200_SolderPasteBottom.gdo
- siemens/80101_0125_F200_L03.gdo
- siemens/80101_0125_F200_L01_Top.gdo
- Target3001/IRNASIoTbank1.2.Bot
- Target3001/IRNASIoTbank1.2.Outline
- Target3001/IRNASIoTbank1.2.PasteBot
- Target3001/IRNASIoTbank1.2.PasteTop
- Target3001/IRNASIoTbank1.2.PosiBot
- Target3001/IRNASIoTbank1.2.PosiTop
- Target3001/IRNASIoTbank1.2.StopBot
- Target3001/IRNASIoTbank1.2.StopTop
- Target3001/IRNASIoTbank1.2.Top
- kicad-older/chibi_2024-Edge.Cuts.gbr
- kicad-older/chibi_2024-F.SilkS.gbr
- kicad-older/chibi_2024-B.Paste.gbr
- kicad-older/chibi_2024-B.Cu.gbr
- kicad-older/chibi_2024-F.Mask.gbr
- kicad-older/chibi_2024-B.Mask.gbr
- kicad-older/chibi_2024-F.Paste.gbr
- kicad-older/chibi_2024-B.SilkS.gbr
- kicad-older/chibi_2024-F.Cu.gbr
- fritzing/combined.gbs
- fritzing/combined.gm1
- fritzing/combined.gbl
- fritzing/combined.gbo
- fritzing/combined.GKO
- fritzing/combined.gtl
- fritzing/combined.gts
- fritzing/combined.gto
- siemens-2/Gerber/SoldermaskTop.gdo
- siemens-2/Gerber/EtchLayerTop.gdo
- siemens-2/Gerber/DrillDrawingThrough.gdo
- siemens-2/Gerber/SoldermaskBottom.gdo
- siemens-2/Gerber/SolderPasteBottom.gdo
- siemens-2/Gerber/SolderPasteTop.gdo
- siemens-2/Gerber/EtchLayerBottom.gdo
- siemens-2/Gerber/GerberPlot.gpf
- siemens-2/Gerber/BoardOutlline.gdo
- upverter/design_export.gko
- upverter/design_export.gtl
- upverter/design_export.gbp
- upverter/design_export.gtp
- upverter/design_export.gbl
- upverter/design_export.gto
- upverter/design_export.gbs
- upverter/design_export.gts
- upverter/design_export.gbo
- eagle_files/solderpaste_bottom.gbr
- eagle_files/silkscreen_bottom.gbr
- eagle_files/profile.gbr
- eagle_files/copper_inner_l2.gbr
- eagle_files/copper_top_l1.gbr
- eagle_files/soldermask_top.gbr
- eagle_files/copper_inner_l3.gbr
- eagle_files/solderpaste_top.gbr
- eagle_files/soldermask_bottom.gbr
- eagle_files/copper_bottom_l4.gbr
- eagle_files/silkscreen_top.gbr
- diptrace/panel_BoardOutline.gbr
- diptrace/keyboard_BottomSilk.gbr
- diptrace/keyboard_Bottom.gbr
- diptrace/mainboard_Top.gbr
- diptrace/mainboard_TopMask.gbr
- diptrace/mainboard_BoardOutline.gbr
- diptrace/mainboard_Bottom.gbr
- diptrace/mainboard_BottomMask.gbr
- diptrace/keyboard_BottomMask.gbr
- diptrace/panel_Bottom.gbr
- diptrace/keyboard_BoardOutline.gbr
- diptrace/panel_BottomSilk.gbr
- diptrace/panel_BottomMask.gbr
- diptrace/mainboard_TopSilk.gbr
-'''.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'
- ]
-
-HAS_ZERO_SIZE_APERTURES = [
- 'bottom_copper.GBL',
- 'bottom_silk.GBO',
- 'top_copper.GTL',
- 'top_silk.GTO',
- 'board_outline.GKO',
- 'silkscreen_top.gbr',
- 'combined.GKO',
- 'combined.gto',
- 'EtchLayerTop.gdo',
- 'EtchLayerBottom.gdo',
- 'BoardOutlline.gdo',
- ]
-
-
-@filter_syntax_warnings
-@pytest.mark.parametrize('reference', REFERENCE_FILES, indirect=True)
-def test_round_trip(reference, tmpfile):
- tmp_gbr = tmpfile('Output gerber', '.gbr')
-
- GerberFile.open(reference).save(tmp_gbr)
-
- mean, _max, hist = gerber_difference(reference, tmp_gbr, diff_out=tmpfile('Difference', '.png'))
- assert mean < 5e-5
- assert hist[9] == 0
- assert hist[3:].sum() < 5e-5*hist.size
-
-@filter_syntax_warnings
-@pytest.mark.parametrize('reference', REFERENCE_FILES, indirect=True)
-def test_idempotence(reference, tmpfile):
- tmp_gbr_1 = tmpfile('First generation output', '.gbr')
- tmp_gbr_2 = tmpfile('Second generation output', '.gbr')
-
- GerberFile.open(reference).save(tmp_gbr_1)
- GerberFile.open(tmp_gbr_1).save(tmp_gbr_2)
- assert tmp_gbr_1.read_text() == tmp_gbr_2.read_text()
-
-
-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)]
-
-@filter_syntax_warnings
-@pytest.mark.parametrize('reference', MIN_REFERENCE_FILES, indirect=True)
-@pytest.mark.parametrize('angle', TEST_ANGLES)
-def test_rotation(reference, angle, tmpfile):
- if 'flash_rectangle' in str(reference) and angle == 1024:
- # gerbv's rendering of this is broken, the hole is missing.
- pytest.skip()
-
- tmp_gbr = tmpfile('Output gerber', '.gbr')
-
- f = GerberFile.open(reference)
- f.rotate(math.radians(angle))
- f.save(tmp_gbr)
-
- cx, cy = 0, to_gerbv_svg_units(10, unit='inch')
- mean, _max, hist = gerber_difference(reference, tmp_gbr, diff_out=tmpfile('Difference', '.png'),
- svg_transform=f'rotate({angle} {cx} {cy})')
- assert mean < 1e-3 # relax mean criterion compared to above.
- assert hist[9] == 0
-
-@filter_syntax_warnings
-@pytest.mark.parametrize('reference', MIN_REFERENCE_FILES, indirect=True)
-@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(reference, angle, center, tmpfile):
- if 'flash_rectangle' in str(reference) and angle in (30, 1024):
- # gerbv's rendering of this is broken, the hole is missing.
- pytest.skip()
-
- tmp_gbr = tmpfile('Output gerber', '.gbr')
-
- f = GerberFile.open(reference)
- f.rotate(math.radians(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(size[1], 'inch')-to_gerbv_svg_units(center[1], 'mm')
- mean, _max, hist = gerber_difference(reference, tmp_gbr, diff_out=tmpfile('Difference', '.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
-
-@filter_syntax_warnings
-@pytest.mark.parametrize('reference', MIN_REFERENCE_FILES, indirect=True)
-@pytest.mark.parametrize('offset', TEST_OFFSETS)
-def test_offset(reference, offset, tmpfile):
- tmp_gbr = tmpfile('Output gerber', '.gbr')
-
- f = GerberFile.open(reference)
- 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(reference, tmp_gbr, diff_out=tmpfile('Difference', '.png'),
- svg_transform=f'translate({dx} {dy})')
- assert mean < 1e-4
- assert hist[9] == 0
-
-@filter_syntax_warnings
-@pytest.mark.parametrize('reference', MIN_REFERENCE_FILES, indirect=True)
-@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(reference, angle, center, offset, tmpfile):
- if 'flash_rectangle' in str(reference) and angle in (30, 1024):
- # gerbv's rendering of this is broken, the hole is missing.
- pytest.skip()
-
- tmp_gbr = tmpfile('Output gerber', '.gbr')
-
- f = GerberFile.open(reference)
- f.rotate(math.radians(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(size[1], '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(reference, tmp_gbr, diff_out=tmpfile('Difference', '.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
-
-@filter_syntax_warnings
-@pytest.mark.parametrize('file_a', MIN_REFERENCE_FILES)
-@pytest.mark.parametrize('file_b', [
- 'example_two_square_boxes.gbr',
- 'example_outline_with_arcs.gbr',
- 'example_am_exposure_modifier.gbr',
- 'bottom_silk.GBO',
- 'eagle_files/copper_bottom_l4.gbr', ])
-@pytest.mark.parametrize('angle', [0, 10, 90])
-@pytest.mark.parametrize('offset', [(0, 0, 0, 0), (100, 0, 0, 0), (0, 0, 0, 100), (100, 0, 0, 100)])
-def test_compositing(file_a, file_b, angle, offset, tmpfile, print_on_error):
-
- # TODO bottom_silk.GBO renders incorrectly with gerbv: the outline does not exist in svg. In GUI, the logo only
- # renders at very high magnification. Skip, and once we have our own SVG export maybe use that instead. Or just use
- # KiCAD's gerbview.
- # TODO check if this and the issue with aperture holes not rendering in test_combined actually are bugs in gerbv
- # and fix/report upstream.
- if file_a == 'bottom_silk.GBO' or file_b == 'bottom_silk.GBO':
- pytest.skip()
-
- ref_a = reference_path(file_a)
- print_on_error('Reference file a:', ref_a)
- ref_b = reference_path(file_b)
- print_on_error('Reference file b:', ref_b)
-
- ax, ay, bx, by = offset
- grb_a = GerberFile.open(ref_a)
- grb_a.rotate(math.radians(angle))
- grb_a.offset(ax, ay)
-
- grb_b = GerberFile.open(ref_b)
- grb_b.offset(bx, by)
-
- grb_a.merge(grb_b)
- tmp_gbr = tmpfile('Output gerber', '.gbr')
- grb_a.save(tmp_gbr, settings=FileSettings(unit=grb_a.unit, number_format=(4,7)))
-
- size = (10, 10) # inches
- ax, ay = to_gerbv_svg_units(ax), -to_gerbv_svg_units(ay)
- bx, by = to_gerbv_svg_units(bx), -to_gerbv_svg_units(by)
- # note that we have to specify cx, cy even if we rotate around the origin since gerber's origin lies at (x=0
- # y=+document size) in SVG's coordinate space because svg's y axis is flipped compared to gerber's.
- cx, cy = 0, to_gerbv_svg_units(size[1], 'inch')
- mean, _max, hist = gerber_difference_merge(ref_a, ref_b, tmp_gbr,
- composite_out=tmpfile('Composite', '.svg'), diff_out=tmpfile('Difference', '.png'),
- svg_transform1=f'translate({ax} {ay}) rotate({angle} {cx} {cy})',
- svg_transform2=f'translate({bx} {by})',
- size=size)
- assert mean < 1e-3
- assert hist[9] < 100
- assert hist[3:].sum() < 1e-3*hist.size
-
-@filter_syntax_warnings
-@pytest.mark.parametrize('reference', REFERENCE_FILES, indirect=True)
-def test_svg_export(reference, tmpfile):
- if reference.name in ('silkscreen_bottom.gbr', 'silkscreen_top.gbr', 'top_silk.GTO'):
- # Some weird svg rendering artifact. Might be caused by mismatching svg units between gerbv and us. Result looks
- # fine though.
- pytest.skip()
-
- if reference.name == 'MinnowMax_assy.art':
- # This leads to worst-case performance in resvg, this testcase takes over 1h to finish. So skip.
- pytest.skip()
-
- grb = GerberFile.open(reference)
-
- bounds = (0.0, 0.0), (6.0, 6.0) # bottom left, top right
-
- out_svg = tmpfile('Output', '.svg')
- with open(out_svg, 'w') as f:
- f.write(str(grb.to_svg(force_bounds=bounds, arg_unit='inch', fg='black', bg='white')))
-
- # NOTE: Instead of having gerbv directly export a PNG, we ask gerbv to output SVG which we then rasterize using
- # resvg. We have to do this since gerbv's built-in cairo-based PNG export has severe aliasing issues. In contrast,
- # using resvg for both allows an apples-to-apples comparison of both results.
- ref_svg = tmpfile('Reference export', '.svg')
- ref_png = tmpfile('Reference render', '.png')
- gerbv_export(reference, ref_svg, origin=bounds[0], size=bounds[1], fg='#000000', bg='#ffffff')
- svg_to_png(ref_svg, ref_png, dpi=300, bg='white')
-
- out_png = tmpfile('Output render', '.png')
- svg_to_png(out_svg, out_png, dpi=300, bg='white')
-
- if reference.name in HAS_ZERO_SIZE_APERTURES:
- # gerbv does not render these correctly.
- return
-
- mean, _max, hist = image_difference(ref_png, out_png, diff_out=tmpfile('Difference', '.png'))
- assert hist[9] < 1
- if 'Minnow' in reference.name or 'LimeSDR' in reference.name or '80101_0125_F200' in reference.name:
- # This is a dense design with lots of traces, leading to lots of aliasing artifacts.
- assert mean < 10e-3
- assert hist[4:].sum() < 1e-2*hist.size
- else:
- assert mean < 1.2e-3
- assert hist[3:].sum() < 1e-3*hist.size
-
-# FIXME test svg margin, bounding box computation
-
-@filter_syntax_warnings
-@pytest.mark.parametrize('reference', REFERENCE_FILES, indirect=True)
-def test_bounding_box(reference, tmpfile):
- if reference.name == 'MinnowMax_assy.art':
- # This leads to worst-case performance in resvg, this testcase takes over 1h to finish. So skip.
- pytest.skip()
- # skip this check on files that contain lines with a zero-size aperture at the board edge
- if any(reference.match(f'*/{f}') for f in HAS_ZERO_SIZE_APERTURES):
- pytest.skip()
-
- margin = 1.0 # inch
- dpi = 200
- margin_px = int(dpi*margin) # intentionally round down to avoid aliasing artifacts
-
- grb = GerberFile.open(reference)
-
- if grb.is_empty:
- pytest.skip()
-
- out_svg = tmpfile('Output', '.svg')
- with open(out_svg, 'w') as f:
- f.write(str(grb.to_svg(margin=margin, arg_unit='inch', fg='white', bg='black')))
-
- out_png = tmpfile('Render', '.png')
- svg_to_png(out_svg, out_png, dpi=dpi)
-
- img = np.array(Image.open(out_png))
- img = img[:, :, :3].mean(axis=2) # drop alpha and convert to grayscale
- img = np.round(img).astype(int) # convert to int
- assert (img > 0).any() # there must be some content, none of the test gerbers are completely empty.
- cols = img.sum(axis=1)
- rows = img.sum(axis=0)
- col_prefix, col_suffix = np.argmax(cols > 0), np.argmax(cols[::-1] > 0)
- row_prefix, row_suffix = np.argmax(rows > 0), np.argmax(rows[::-1] > 0)
- print('cols:', col_prefix, col_suffix)
- print('rows:', row_prefix, row_suffix)
-
- # Check that all margins are completely black and that the content touches the margins. Allow for some tolerance to
- # allow for antialiasing artifacts and for things like very thin features.
- assert margin_px-2 <= col_prefix <= margin_px+2
- assert margin_px-2 <= col_suffix <= margin_px+2
- assert margin_px-2 <= row_prefix <= margin_px+2
- assert margin_px-2 <= row_suffix <= margin_px+2
-
-@filter_syntax_warnings
-def test_syntax_error():
- ref = reference_path('test_syntax_error.gbr')
- with pytest.raises(SyntaxError) as exc_info:
- GerberFile.open(ref)
-
- assert 'test_syntax_error.gbr' in exc_info.value.msg
- assert '7' in exc_info.value.msg # lineno
-