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# Copyright (c) 2023, Manfred Moitzi
# License: MIT License
import pytest
from xml.etree import ElementTree as ET
from ezdxf.math import Vec2
from ezdxf.npshapes import NumpyPoints2d
from ezdxf.addons.drawing import svg, layout
from ezdxf.addons.drawing.properties import BackendProperties
class TestStyles:
@pytest.fixture
def xml(self):
return ET.Element("defs")
def test_create_stroke_style(self, xml):
styles = svg.Styles(xml)
cls = styles.get_class(stroke="black", stroke_width=10)
assert cls == "C1"
assert len(xml) == 1
# repeat
cls = styles.get_class(stroke="black", stroke_width=10)
assert cls == "C1"
assert len(xml) == 1
def test_style_string(self, xml):
styles = svg.Styles(xml)
styles.get_class(stroke="black", stroke_width=10, stroke_opacity=0.5)
string = ET.tostring(xml[0], encoding="unicode")
assert (
string
== "<style>.C1 {stroke: black; stroke-width: 10; stroke-opacity: 0.500; "
"fill: none; fill-opacity: 1.000;}</style>"
)
class TestStrokeWidthMapping:
def test_min_stroke_width(self):
assert svg.map_lineweight_to_stroke_width(0.0, 10, 100) == 10
def test_max_stroke_width(self):
assert svg.map_lineweight_to_stroke_width(3.0, 10, 100) == 100
def test_interpolation(self):
# min_lineweight = 0.05 defined by DXF
# max_lineweight = 2.11 defined by DXF
assert svg.map_lineweight_to_stroke_width(0.25, 5, 211) == 25
assert svg.map_lineweight_to_stroke_width(0.5, 5, 211) == 50
assert svg.map_lineweight_to_stroke_width(1.0, 5, 211) == 100
assert svg.map_lineweight_to_stroke_width(0.05, 5, 211) == 5
assert svg.map_lineweight_to_stroke_width(2.11, 5, 211) == 211
NS = {
"http://www.w3.org/2000/svg": "",
}
class TestSVGBackend:
@pytest.fixture
def backend(self):
backend_ = svg.SVGBackend()
properties = BackendProperties(color="#ff0000", lineweight=0.25)
points = NumpyPoints2d(Vec2.list([(0, 0), (100, 0), (100, 100), (0, 100)]))
backend_.draw_filled_polygon(points, properties)
return backend_
def test_get_xml_root_element(self, backend):
xml = backend.get_xml_root_element(layout.Page(400, 300))
assert xml.tag.endswith("svg") is True
assert xml.attrib["width"] == "400mm"
assert xml.attrib["height"] == "300mm"
assert xml.attrib["viewBox"] == "0 0 1000000 750000"
def test_get_string(self, backend):
result = backend.get_string(layout.Page(400, 300))
assert isinstance(result, str) is True
xml = ET.fromstring(result)
assert xml.tag.endswith("svg") is True
assert xml.attrib["width"] == "400mm"
assert xml.attrib["height"] == "300mm"
assert xml.attrib["viewBox"] == "0 0 1000000 750000"
def test_empty_page():
backend_ = svg.SVGBackend()
backend_.draw_point(Vec2(0, 0), BackendProperties())
result = backend_.get_string(layout.Page(0, 0), xml_declaration=False)
assert result == "<svg />"
if __name__ == "__main__":
pytest.main([__file__])
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