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#! /usr/bin/env python
# -*- coding: utf-8 -*-
# copyright 2016 Hamilton Kibbe <ham@hamiltonkib.be>
#
# 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 os
from ..layers import *
from ..common import read
NCDRILL_FILE = os.path.join(os.path.dirname(__file__), "resources/ncdrill.DRD")
NETLIST_FILE = os.path.join(os.path.dirname(__file__), "resources/ipc-d-356.ipc")
COPPER_FILE = os.path.join(os.path.dirname(__file__), "resources/top_copper.GTL")
def test_guess_layer_class():
""" Test layer type inferred correctly from filename
"""
# Add any specific test cases here (filename, layer_class)
test_vectors = [
(None, "unknown"),
("NCDRILL.TXT", "unknown"),
("example_board.gtl", "top"),
("exampmle_board.sst", "topsilk"),
("ipc-d-356.ipc", "ipc_netlist"),
]
for hint in hints:
for ext in hint.ext:
assert hint.layer == guess_layer_class("board.{}".format(ext))
for name in hint.name:
assert hint.layer == guess_layer_class("{}.pho".format(name))
for filename, layer_class in test_vectors:
assert layer_class == guess_layer_class(filename)
def test_guess_layer_class_regex():
""" Test regular expressions for layer matching
"""
# Add any specific test case (filename, layer_class)
test_vectors = [("test - top copper.gbr", "top"), ("test - copper top.gbr", "top")]
# Add custom regular expressions
layer_hints = [
Hint(
layer="top",
ext=[],
name=[],
regex=r"(.*)(\scopper top|\stop copper).gbr",
content=[],
)
]
hints.extend(layer_hints)
for filename, layer_class in test_vectors:
assert layer_class == guess_layer_class(filename)
def test_guess_layer_class_by_content():
""" Test layer class by checking content
"""
expected_layer_class = "bottom"
filename = os.path.join(
os.path.dirname(__file__), "resources/example_guess_by_content.g0"
)
layer_hints = [
Hint(
layer="bottom",
ext=[],
name=[],
regex="",
content=["G04 Layer name: Bottom"],
)
]
hints.extend(layer_hints)
assert expected_layer_class == guess_layer_class_by_content(filename)
def test_sort_layers():
""" Test layer ordering
"""
layers = [
PCBLayer(layer_class="drawing"),
PCBLayer(layer_class="drill"),
PCBLayer(layer_class="bottompaste"),
PCBLayer(layer_class="bottomsilk"),
PCBLayer(layer_class="bottommask"),
PCBLayer(layer_class="bottom"),
PCBLayer(layer_class="internal"),
PCBLayer(layer_class="top"),
PCBLayer(layer_class="topmask"),
PCBLayer(layer_class="topsilk"),
PCBLayer(layer_class="toppaste"),
PCBLayer(layer_class="outline"),
]
layer_order = [
"outline",
"toppaste",
"topsilk",
"topmask",
"top",
"internal",
"bottom",
"bottommask",
"bottomsilk",
"bottompaste",
"drill",
"drawing",
]
bottom_order = list(reversed(layer_order[:10])) + layer_order[10:]
assert [l.layer_class for l in sort_layers(layers)] == layer_order
assert [l.layer_class for l in sort_layers(layers, from_top=False)] == bottom_order
def test_PCBLayer_from_file():
layer = PCBLayer.from_cam(read(COPPER_FILE))
assert isinstance(layer, PCBLayer)
layer = PCBLayer.from_cam(read(NCDRILL_FILE))
assert isinstance(layer, DrillLayer)
layer = PCBLayer.from_cam(read(NETLIST_FILE))
assert isinstance(layer, PCBLayer)
assert layer.layer_class == "ipc_netlist"
def test_PCBLayer_bounds():
source = read(COPPER_FILE)
layer = PCBLayer.from_cam(source)
assert source.bounds == layer.bounds
def test_DrillLayer_from_cam():
no_exceptions = True
try:
layer = DrillLayer.from_cam(read(NCDRILL_FILE))
assert isinstance(layer, DrillLayer)
except:
no_exceptions = False
assert no_exceptions
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