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improved `scale` related tests

pull/54/head
Andy Port 2018-05-30 19:30:24 -07:00 committed by GitHub
parent 72d7467896
commit 304c0bbe1d
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1 changed files with 11 additions and 21 deletions
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30
test/test_path.py
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@ -726,9 +726,10 @@ class TestPath(unittest.TestCase):
with self.assertRaises(AssertionError):
p_open.cropped(1, 0)
def test_transform_scale_uniform(self):
line1 = Line(600 + 350j, 650 + 325j)
def test_transform_scale(self):
line1 = Line(600.5 + 350.5j, 650.5 + 325.5j)
arc1 = Arc(650 + 325j, 25 + 25j, -30, 0, 1, 700 + 300j)
arc2 = Arc(650 + 325j, 30 + 25j, -30, 0, 0, 700 + 300j)
cub1 = CubicBezier(650 + 325j, 25 + 25j, -30, 700 + 300j)
cub2 = CubicBezier(700 + 300j, 800 + 400j, 750 + 200j, 600 + 100j)
quad3 = QuadraticBezier(600 + 100j, 600, 600 + 300j)
@ -741,23 +742,15 @@ class TestPath(unittest.TestCase):
lpath = Path(linez)
qpath = Path(quad3)
cpath = Path(cub1)
apath = Path(arc1)
apath = Path(arc1, arc2)
test_paths = [
bezpath,
bezpathz,
path,
pathz,
lpath,
qpath,
cpath,
apath,
]
test_curves = ([bezpath, bezpathz, path, pathz, lpath, qpath, cpath, apath] +
[line1, arc1, arc2, cub1, cub2, quad3, linez])
for path_orig in test_paths:
for path_orig in test_curves:
# scale by 2 around (100, 100)
path_trns = path_orig.scaled_uniform(2.0, complex(100, 100))
path_trns = path_orig.scaled(2.0, complex(100, 100))
# expected length
len_orig = path_orig.length()
@ -771,12 +764,12 @@ class TestPath(unittest.TestCase):
pt_xpct = (pt_orig - complex(100, 100)) * 2.0 + complex(100, 100)
self.assertAlmostEqual(pt_xpct, pt_trns)
for path_orig in test_paths:
for path_orig in test_curves:
# scale by 0.3 around (0, -100)
# the 'almost equal' test fails at the 7th decimal place for
# some length and position tests here.
path_trns = path_orig.scaled_uniform(0.3, complex(0, -100))
path_trns = path_orig.scaled(0.3, complex(0, -100))
# expected length
len_orig = path_orig.length()
@ -791,9 +784,6 @@ class TestPath(unittest.TestCase):
self.assertAlmostEqual(pt_xpct, pt_trns, delta = 0.000001)
class Test_ilength(unittest.TestCase):
# See svgpathtools.notes.inv_arclength.py for information on how these
# test values were generated (using the .length() method).