ai-content-maker/.venv/Lib/site-packages/matplotlib/tests/test_texmanager.py

75 lines
2.5 KiB
Python

import os
from pathlib import Path
import re
import subprocess
import sys
import matplotlib.pyplot as plt
from matplotlib.texmanager import TexManager
from matplotlib.testing._markers import needs_usetex
import pytest
def test_fontconfig_preamble():
"""Test that the preamble is included in the source."""
plt.rcParams['text.usetex'] = True
src1 = TexManager()._get_tex_source("", fontsize=12)
plt.rcParams['text.latex.preamble'] = '\\usepackage{txfonts}'
src2 = TexManager()._get_tex_source("", fontsize=12)
assert src1 != src2
@pytest.mark.parametrize(
"rc, preamble, family", [
({"font.family": "sans-serif", "font.sans-serif": "helvetica"},
r"\usepackage{helvet}", r"\sffamily"),
({"font.family": "serif", "font.serif": "palatino"},
r"\usepackage{mathpazo}", r"\rmfamily"),
({"font.family": "cursive", "font.cursive": "zapf chancery"},
r"\usepackage{chancery}", r"\rmfamily"),
({"font.family": "monospace", "font.monospace": "courier"},
r"\usepackage{courier}", r"\ttfamily"),
({"font.family": "helvetica"}, r"\usepackage{helvet}", r"\sffamily"),
({"font.family": "palatino"}, r"\usepackage{mathpazo}", r"\rmfamily"),
({"font.family": "zapf chancery"},
r"\usepackage{chancery}", r"\rmfamily"),
({"font.family": "courier"}, r"\usepackage{courier}", r"\ttfamily")
])
def test_font_selection(rc, preamble, family):
plt.rcParams.update(rc)
tm = TexManager()
src = Path(tm.make_tex("hello, world", fontsize=12)).read_text()
assert preamble in src
assert [*re.findall(r"\\\w+family", src)] == [family]
@needs_usetex
def test_unicode_characters():
# Smoke test to see that Unicode characters does not cause issues
# See #23019
plt.rcParams['text.usetex'] = True
fig, ax = plt.subplots()
ax.set_ylabel('\\textit{Velocity (\N{DEGREE SIGN}/sec)}')
ax.set_xlabel('\N{VULGAR FRACTION ONE QUARTER}Öøæ')
fig.canvas.draw()
# But not all characters.
# Should raise RuntimeError, not UnicodeDecodeError
with pytest.raises(RuntimeError):
ax.set_title('\N{SNOWMAN}')
fig.canvas.draw()
@needs_usetex
def test_openin_any_paranoid():
completed = subprocess.run(
[sys.executable, "-c",
'import matplotlib.pyplot as plt;'
'plt.rcParams.update({"text.usetex": True});'
'plt.title("paranoid");'
'plt.show(block=False);'],
env={**os.environ, 'openin_any': 'p'}, check=True, capture_output=True)
assert completed.stderr == b""