summaryrefslogtreecommitdiff
path: root/gerbonara/gerber/tests/test_cairo_backend.py
blob: 51007a9099d77bce1e35ae473158042103556dd0 (plain)
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
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
#! /usr/bin/env python
# -*- coding: utf-8 -*-

# Author: Garret Fick <garret@ficksworkshop.com>
import os
import shutil
import tempfile

from ..render.cairo_backend import GerberCairoContext
from ..rs274x import read


def _DISABLED_test_render_two_boxes():
    """Umaco exapmle of two boxes"""
    _test_render(
        "resources/example_two_square_boxes.gbr", "golden/example_two_square_boxes.png"
    )


def _DISABLED_test_render_single_quadrant():
    """Umaco exapmle of a single quadrant arc"""
    _test_render(
        "resources/example_single_quadrant.gbr", "golden/example_single_quadrant.png"
    )


def _DISABLED_test_render_simple_contour():
    """Umaco exapmle of a simple arrow-shaped contour"""
    gerber = _test_render(
        "resources/example_simple_contour.gbr", "golden/example_simple_contour.png"
    )

    # Check the resulting dimensions
    assert ((2.0, 11.0), (1.0, 9.0)) == gerber.bounding_box


def _DISABLED_test_render_single_contour_1():
    """Umaco example of a single contour

    The resulting image for this test is used by other tests because they must generate the same output."""
    _test_render(
        "resources/example_single_contour_1.gbr", "golden/example_single_contour.png"
    )


def _DISABLED_test_render_single_contour_2():
    """Umaco exapmle of a single contour, alternate contour end order

    The resulting image for this test is used by other tests because they must generate the same output."""
    _test_render(
        "resources/example_single_contour_2.gbr", "golden/example_single_contour.png"
    )


def _DISABLED_test_render_single_contour_3():
    """Umaco exapmle of a single contour with extra line"""
    _test_render(
        "resources/example_single_contour_3.gbr", "golden/example_single_contour_3.png"
    )


def _DISABLED_test_render_not_overlapping_contour():
    """Umaco example of D02 staring a second contour"""
    _test_render(
        "resources/example_not_overlapping_contour.gbr",
        "golden/example_not_overlapping_contour.png",
    )


def _DISABLED_test_render_not_overlapping_touching():
    """Umaco example of D02 staring a second contour"""
    _test_render(
        "resources/example_not_overlapping_touching.gbr",
        "golden/example_not_overlapping_touching.png",
    )


def test_render_overlapping_touching():
    """Umaco example of D02 staring a second contour"""
    _test_render(
        "resources/example_overlapping_touching.gbr",
        "golden/example_overlapping_touching.png",
    )


def test_render_overlapping_contour():
    """Umaco example of D02 staring a second contour"""
    _test_render(
        "resources/example_overlapping_contour.gbr",
        "golden/example_overlapping_contour.png",
    )


def _DISABLED_test_render_level_holes():
    """Umaco example of using multiple levels to create multiple holes"""

    # TODO This is clearly rendering wrong. I'm temporarily checking this in because there are more
    # rendering fixes in the related repository that may resolve these.
    _test_render(
        "resources/example_level_holes.gbr", "golden/example_overlapping_contour.png"
    )


def _DISABLED_test_render_cutin():
    """Umaco example of using a cutin"""

    # TODO This is clearly rendering wrong.
    _test_render(
        "resources/example_cutin.gbr",
        "golden/example_cutin.png",
        "/Users/ham/Desktop/cutin.png",
    )


def _DISABLED_test_render_fully_coincident():
    """Umaco example of coincident lines rendering two contours"""

    _test_render(
        "resources/example_fully_coincident.gbr", "golden/example_fully_coincident.png"
    )


def _DISABLED_test_render_coincident_hole():
    """Umaco example of coincident lines rendering a hole in the contour"""

    _test_render(
        "resources/example_coincident_hole.gbr", "golden/example_coincident_hole.png"
    )


def test_render_cutin_multiple():
    """Umaco example of a region with multiple cutins"""

    _test_render(
        "resources/example_cutin_multiple.gbr", "golden/example_cutin_multiple.png"
    )


def _DISABLED_test_flash_circle():
    """Umaco example a simple circular flash with and without a hole"""

    _test_render(
        "resources/example_flash_circle.gbr",
        "golden/example_flash_circle.png",
        "/Users/ham/Desktop/flashcircle.png",
    )


def _DISABLED_test_flash_rectangle():
    """Umaco example a simple rectangular flash with and without a hole"""

    _test_render(
        "resources/example_flash_rectangle.gbr", "golden/example_flash_rectangle.png"
    )


def _DISABLED_test_flash_obround():
    """Umaco example a simple obround flash with and without a hole"""

    _test_render(
        "resources/example_flash_obround.gbr", "golden/example_flash_obround.png"
    )


def _DISABLED_test_flash_polygon():
    """Umaco example a simple polygon flash with and without a hole"""

    _test_render(
        "resources/example_flash_polygon.gbr", "golden/example_flash_polygon.png"
    )


def _DISABLED_test_holes_dont_clear():
    """Umaco example that an aperture with a hole does not clear the area"""

    _test_render(
        "resources/example_holes_dont_clear.gbr", "golden/example_holes_dont_clear.png"
    )


def _DISABLED_test_render_am_exposure_modifier():
    """Umaco example that an aperture macro with a hole does not clear the area"""

    _test_render(
        "resources/example_am_exposure_modifier.gbr",
        "golden/example_am_exposure_modifier.png",
    )


def test_render_svg_simple_contour():
    """Example of rendering to an SVG file"""
    _test_simple_render_svg("resources/example_simple_contour.gbr")


def _resolve_path(path):
    return os.path.join(os.path.dirname(__file__), path)


def _test_render(gerber_path, png_expected_path, create_output_path=None):
    """Render the gerber file and compare to the expected PNG output.

    Parameters
    ----------
    gerber_path : string
        Path to Gerber file to open
    png_expected_path : string
        Path to the PNG file to compare to
    create_output : string|None
        If not None, write the generated PNG to the specified path.
        This is primarily to help with
    """

    gerber_path = _resolve_path(gerber_path)
    png_expected_path = _resolve_path(png_expected_path)
    if create_output_path:
        create_output_path = _resolve_path(create_output_path)

    gerber = read(gerber_path)

    # Create PNG image to the memory stream
    ctx = GerberCairoContext()
    gerber.render(ctx)

    actual_bytes = ctx.dump(None)

    # If we want to write the file bytes, do it now. This happens
    if create_output_path:
        with open(create_output_path, "wb") as out_file:
            out_file.write(actual_bytes)
        # Creating the output is dangerous - it could overwrite the expected result.
        # So if we are creating the output, we make the test fail on purpose so you
        # won't forget to disable this
        assert not True, (
            "Test created the output %s. This needs to be disabled to make sure the test behaves correctly"
            % (create_output_path,)
        )

    # Read the expected PNG file

    with open(png_expected_path, "rb") as expected_file:
        expected_bytes = expected_file.read()

    # Don't directly use assert_equal otherwise any failure pollutes the test results
    equal = expected_bytes == actual_bytes
    assert equal

    return gerber


def _test_simple_render_svg(gerber_path):
    """Render the gerber file as SVG

    Note: verifies only the header, not the full content.

    Parameters
    ----------
    gerber_path : string
        Path to Gerber file to open
    """

    gerber_path = _resolve_path(gerber_path)
    gerber = read(gerber_path)

    # Create SVG image to the memory stream
    ctx = GerberCairoContext()
    gerber.render(ctx)

    temp_dir = tempfile.mkdtemp()
    svg_temp_path = os.path.join(temp_dir, "output.svg")

    assert not os.path.exists(svg_temp_path)
    ctx.dump(svg_temp_path)
    assert os.path.exists(svg_temp_path)

    with open(svg_temp_path, "r") as expected_file:
        expected_bytes = expected_file.read()
    assert expected_bytes[:38] == '<?xml version="1.0" encoding="UTF-8"?>'

    shutil.rmtree(temp_dir)