wehub-resource-sync
71 lines
2.1 KiB
Python
71 lines
2.1 KiB
Python
"""
|
|
Limited tests of the visualization module. Right now it just makes
|
|
sure that passing custom Axes works.
|
|
|
|
"""
|
|
|
|
import pytest
|
|
|
|
from mpmath import fp, mp
|
|
|
|
|
|
def test_axes():
|
|
try:
|
|
import matplotlib
|
|
version = matplotlib.__version__.split("-")[0]
|
|
version = version.split(".")[:2]
|
|
if [int(_) for _ in version] < [0,99]:
|
|
raise ImportError
|
|
import pylab
|
|
except ImportError:
|
|
pytest.skip("\nSkipping test (pylab not available or too old version)\n")
|
|
fig = pylab.figure()
|
|
axes = fig.add_subplot(111)
|
|
for ctx in [mp, fp]:
|
|
ctx.plot(lambda x: x**2, [0, 3], axes=axes)
|
|
assert axes.get_xlabel() == 'x'
|
|
assert axes.get_ylabel() == 'f(x)'
|
|
|
|
fig = pylab.figure()
|
|
axes = fig.add_subplot(111)
|
|
for ctx in [mp, fp]:
|
|
ctx.cplot(lambda z: z, [-2, 2], [-10, 10], axes=axes)
|
|
assert axes.get_xlabel() == 'Re(z)'
|
|
assert axes.get_ylabel() == 'Im(z)'
|
|
|
|
|
|
def test_issue_1007():
|
|
# plot(), cplot() and splot() must not leave a stale figure open
|
|
# when the user-supplied function raises an unexpected exception;
|
|
# otherwise that blank figure lingers and is shown on the next call.
|
|
try:
|
|
import matplotlib
|
|
version = matplotlib.__version__.split("-")[0]
|
|
version = version.split(".")[:2]
|
|
if [int(_) for _ in version] < [0,99]:
|
|
raise ImportError
|
|
import pylab
|
|
except ImportError:
|
|
pytest.skip("\nSkipping test (pylab not available or too old version)\n")
|
|
|
|
class Boom(Exception):
|
|
pass
|
|
|
|
def bad(*args):
|
|
# An error that is not in plot_ignore, so it propagates out of
|
|
# plot()/cplot()/splot() instead of being silently skipped.
|
|
raise Boom
|
|
|
|
for ctx in [mp, fp]:
|
|
pylab.close("all")
|
|
pytest.raises(Boom, lambda: ctx.plot(bad, [0, 2]))
|
|
assert pylab.get_fignums() == []
|
|
|
|
pylab.close("all")
|
|
pytest.raises(Boom, lambda: ctx.cplot(bad, [-2, 2], [-2, 2]))
|
|
assert pylab.get_fignums() == []
|
|
|
|
pylab.close("all")
|
|
pytest.raises(Boom, lambda: ctx.splot(bad, [-1, 1], [-1, 1]))
|
|
assert pylab.get_fignums() == []
|