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import unittest
from shapely.geometry import LineString, Point, Polygon
from shapely.ops import triangulate
class DelaunayTriangulation(unittest.TestCase):
"""
Only testing the number of triangles and their type here.
This doesn't actually test the points in the resulting geometries.
"""
def setUp(self):
self.p = Polygon([(0, 0), (1, 0), (1, 1), (0, 1)])
def test_polys(self):
polys = triangulate(self.p)
assert len(polys) == 2
for p in polys:
assert isinstance(p, Polygon)
def test_lines(self):
polys = triangulate(self.p, edges=True)
assert len(polys) == 5
for p in polys:
assert isinstance(p, LineString)
def test_point(self):
p = Point(1, 1)
polys = triangulate(p)
assert len(polys) == 0
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