82 lines
3.8 KiB
Python
82 lines
3.8 KiB
Python
# Note: This file was taken mostly as is from the svg.path module (v 2.0)
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#------------------------------------------------------------------------------
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from __future__ import division, absolute_import, print_function
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import unittest
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from svgpathtools import parse_path
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class TestGeneration(unittest.TestCase):
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def test_path_parsing(self):
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"""Examples from the SVG spec"""
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paths = [
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'M 100,100 L 300,100 L 200,300 Z',
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'M 0,0 L 50,20 M 100,100 L 300,100 L 200,300 Z',
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'M 100,100 L 200,200',
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'M 100,200 L 200,100 L -100,-200',
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'M 100,200 C 100,100 250,100 250,200 S 400,300 400,200',
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'M 100,200 C 100,100 400,100 400,200',
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'M 100,500 C 25,400 475,400 400,500',
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'M 100,800 C 175,700 325,700 400,800',
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'M 600,200 C 675,100 975,100 900,200',
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'M 600,500 C 600,350 900,650 900,500',
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'M 600,800 C 625,700 725,700 750,800 S 875,900 900,800',
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'M 200,300 Q 400,50 600,300 T 1000,300',
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'M -3.4E+38,3.4E+38 L -3.4E-38,3.4E-38',
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'M 0,0 L 50,20 M 50,20 L 200,100 Z',
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'M 600,350 L 650,325 A 25,25 -30 0,1 700,300 L 750,275',
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]
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float_paths = [
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'M 100.0,100.0 L 300.0,100.0 L 200.0,300.0 L 100.0,100.0',
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'M 0.0,0.0 L 50.0,20.0 M 100.0,100.0 L 300.0,100.0 L 200.0,300.0 L 100.0,100.0',
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'M 100.0,100.0 L 200.0,200.0',
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'M 100.0,200.0 L 200.0,100.0 L -100.0,-200.0',
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'M 100.0,200.0 C 100.0,100.0 250.0,100.0 250.0,200.0 C 250.0,300.0 400.0,300.0 400.0,200.0',
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'M 100.0,200.0 C 100.0,100.0 400.0,100.0 400.0,200.0',
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'M 100.0,500.0 C 25.0,400.0 475.0,400.0 400.0,500.0',
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'M 100.0,800.0 C 175.0,700.0 325.0,700.0 400.0,800.0',
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'M 600.0,200.0 C 675.0,100.0 975.0,100.0 900.0,200.0',
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'M 600.0,500.0 C 600.0,350.0 900.0,650.0 900.0,500.0',
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'M 600.0,800.0 C 625.0,700.0 725.0,700.0 750.0,800.0 C 775.0,900.0 875.0,900.0 900.0,800.0',
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'M 200.0,300.0 Q 400.0,50.0 600.0,300.0 Q 800.0,550.0 1000.0,300.0',
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'M -3.4e+38,3.4e+38 L -3.4e-38,3.4e-38',
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'M 0.0,0.0 L 50.0,20.0 L 200.0,100.0 L 50.0,20.0',
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('M 600.0,350.0 L 650.0,325.0 A 27.9508497187,27.9508497187 -30.0 0,1 700.0,300.0 L 750.0,275.0', # Python 2
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'M 600.0,350.0 L 650.0,325.0 A 27.95084971874737,27.95084971874737 -30.0 0,1 700.0,300.0 L 750.0,275.0') # Python 3
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]
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for path, flpath in zip(paths[::-1], float_paths[::-1]):
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# Note: Python 3 and Python 2 differ in the number of digits
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# truncated when returning a string representation of a float
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parsed_path = parse_path(path)
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res = parsed_path.d()
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if isinstance(flpath, tuple):
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option3 = res == flpath[1] # Python 3
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flpath = flpath[0]
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else:
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option3 = False
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option1 = res == path
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option2 = res == flpath
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msg = ('\npath =\n {}\nflpath =\n {}\nparse_path(path).d() =\n {}'
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''.format(path, flpath, res))
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self.assertTrue(option1 or option2 or option3, msg=msg)
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for flpath in float_paths[:-1]:
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res = parse_path(flpath).d()
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msg = ('\nflpath =\n {}\nparse_path(path).d() =\n {}'
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''.format(flpath, res))
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self.assertTrue(res == flpath, msg=msg)
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def test_normalizing(self):
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# Relative paths will be made absolute, subpaths merged if they can,
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# and syntax will change.
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path = 'M0 0L3.4E2-10L100.0,100M100,100l100,-100'
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ps = 'M 0,0 L 340,-10 L 100,100 L 200,0'
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psf = 'M 0.0,0.0 L 340.0,-10.0 L 100.0,100.0 L 200.0,0.0'
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self.assertTrue(parse_path(path).d() in (ps, psf))
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if __name__ == '__main__':
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unittest.main()
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