55 lines
1.9 KiB
Python
55 lines
1.9 KiB
Python
|
import pytest
|
||
|
|
from numpy.testing import assert_, assert_array_equal, suppress_warnings
|
||
|
|
try:
|
||
|
|
import matplotlib
|
||
|
|
matplotlib.rcParams['backend'] = 'Agg'
|
||
|
|
import matplotlib.pyplot as plt
|
||
|
|
has_matplotlib = True
|
||
|
|
except Exception:
|
||
|
|
has_matplotlib = False
|
||
|
|
|
||
|
|
from scipy.spatial import \
|
||
|
|
delaunay_plot_2d, voronoi_plot_2d, convex_hull_plot_2d, \
|
||
|
|
Delaunay, Voronoi, ConvexHull
|
||
|
|
|
||
|
|
|
||
|
|
@pytest.mark.skipif(not has_matplotlib, reason="Matplotlib not available")
|
||
|
|
class TestPlotting:
|
||
|
|
points = [(0,0), (0,1), (1,0), (1,1)]
|
||
|
|
|
||
|
|
def test_delaunay(self):
|
||
|
|
# Smoke test
|
||
|
|
fig = plt.figure()
|
||
|
|
obj = Delaunay(self.points)
|
||
|
|
s_before = obj.simplices.copy()
|
||
|
|
with suppress_warnings() as sup:
|
||
|
|
# filter can be removed when matplotlib 1.x is dropped
|
||
|
|
sup.filter(message="The ishold function was deprecated in version")
|
||
|
|
r = delaunay_plot_2d(obj, ax=fig.gca())
|
||
|
|
assert_array_equal(obj.simplices, s_before) # shouldn't modify
|
||
|
|
assert_(r is fig)
|
||
|
|
delaunay_plot_2d(obj, ax=fig.gca())
|
||
|
|
|
||
|
|
def test_voronoi(self):
|
||
|
|
# Smoke test
|
||
|
|
fig = plt.figure()
|
||
|
|
obj = Voronoi(self.points)
|
||
|
|
with suppress_warnings() as sup:
|
||
|
|
# filter can be removed when matplotlib 1.x is dropped
|
||
|
|
sup.filter(message="The ishold function was deprecated in version")
|
||
|
|
r = voronoi_plot_2d(obj, ax=fig.gca())
|
||
|
|
assert_(r is fig)
|
||
|
|
voronoi_plot_2d(obj)
|
||
|
|
voronoi_plot_2d(obj, show_vertices=False)
|
||
|
|
|
||
|
|
def test_convex_hull(self):
|
||
|
|
# Smoke test
|
||
|
|
fig = plt.figure()
|
||
|
|
tri = ConvexHull(self.points)
|
||
|
|
with suppress_warnings() as sup:
|
||
|
|
# filter can be removed when matplotlib 1.x is dropped
|
||
|
|
sup.filter(message="The ishold function was deprecated in version")
|
||
|
|
r = convex_hull_plot_2d(tri, ax=fig.gca())
|
||
|
|
assert_(r is fig)
|
||
|
|
convex_hull_plot_2d(tri)
|