Rename gerbonara/gerber package to just gerbonara

1 files changed, 152 insertions, 0 deletions

diff --git a/gerbonara/tests/test_excellon.py b/gerbonara/tests/test_excellon.py
new file mode 100644
index 0000000..6267f65
--- /dev/null
+++ b/gerbonara/tests/test_excellon.py
@@ -0,0 +1,152 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+# Author: Jan Götte <code@jaseg.de>
+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'),
+        }
+
+@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')
+
+    ExcellonFile.open(reference).save(tmp_1)
+    ExcellonFile.open(tmp_1).save(tmp_2)
+
+    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/test.xnc')
+
+    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)
+            if abs(x - 121.525) < 2 and abs(y - 64) < 2:
+                print(obj)
+            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)
+                print((x, y), end=' ')
+                if abs(x - 121.525) < 2 and abs(y - 64) < 2:
+                    print(obj)
+                    print('   ', tree.query_ball_point((x, y), r=tolerance))
+                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
+