119 lines
4.4 KiB
Python
119 lines
4.4 KiB
Python
|
from pathlib import Path
|
||
|
|
import io
|
||
|
|
|
||
|
|
import pytest
|
||
|
|
|
||
|
|
from matplotlib import ft2font
|
||
|
|
from matplotlib.testing.decorators import check_figures_equal
|
||
|
|
import matplotlib.font_manager as fm
|
||
|
|
import matplotlib.pyplot as plt
|
||
|
|
|
||
|
|
|
||
|
|
def test_fallback_errors():
|
||
|
|
file_name = fm.findfont('DejaVu Sans')
|
||
|
|
|
||
|
|
with pytest.raises(TypeError, match="Fallback list must be a list"):
|
||
|
|
# failing to be a list will fail before the 0
|
||
|
|
ft2font.FT2Font(file_name, _fallback_list=(0,)) # type: ignore[arg-type]
|
||
|
|
|
||
|
|
with pytest.raises(
|
||
|
|
TypeError, match="Fallback fonts must be FT2Font objects."
|
||
|
|
):
|
||
|
|
ft2font.FT2Font(file_name, _fallback_list=[0]) # type: ignore[list-item]
|
||
|
|
|
||
|
|
|
||
|
|
def test_ft2font_positive_hinting_factor():
|
||
|
|
file_name = fm.findfont('DejaVu Sans')
|
||
|
|
with pytest.raises(
|
||
|
|
ValueError, match="hinting_factor must be greater than 0"
|
||
|
|
):
|
||
|
|
ft2font.FT2Font(file_name, 0)
|
||
|
|
|
||
|
|
|
||
|
|
@pytest.mark.parametrize('family_name, file_name',
|
||
|
|
[("WenQuanYi Zen Hei", "wqy-zenhei.ttc"),
|
||
|
|
("Noto Sans CJK JP", "NotoSansCJK.ttc"),
|
||
|
|
("Noto Sans TC", "NotoSansTC-Regular.otf")]
|
||
|
|
)
|
||
|
|
def test_fallback_smoke(family_name, file_name):
|
||
|
|
fp = fm.FontProperties(family=[family_name])
|
||
|
|
if Path(fm.findfont(fp)).name != file_name:
|
||
|
|
pytest.skip(f"Font {family_name} ({file_name}) is missing")
|
||
|
|
plt.rcParams['font.size'] = 20
|
||
|
|
fig = plt.figure(figsize=(4.75, 1.85))
|
||
|
|
fig.text(0.05, 0.45, "There are 几个汉字 in between!",
|
||
|
|
family=['DejaVu Sans', family_name])
|
||
|
|
fig.text(0.05, 0.85, "There are 几个汉字 in between!",
|
||
|
|
family=[family_name])
|
||
|
|
|
||
|
|
# TODO enable fallback for other backends!
|
||
|
|
for fmt in ['png', 'raw']: # ["svg", "pdf", "ps"]:
|
||
|
|
fig.savefig(io.BytesIO(), format=fmt)
|
||
|
|
|
||
|
|
|
||
|
|
@pytest.mark.parametrize('family_name, file_name',
|
||
|
|
[("WenQuanYi Zen Hei", "wqy-zenhei"),
|
||
|
|
("Noto Sans CJK JP", "NotoSansCJK"),
|
||
|
|
("Noto Sans TC", "NotoSansTC-Regular.otf")]
|
||
|
|
)
|
||
|
|
@check_figures_equal(extensions=["png", "pdf", "eps", "svg"])
|
||
|
|
def test_font_fallback_chinese(fig_test, fig_ref, family_name, file_name):
|
||
|
|
fp = fm.FontProperties(family=[family_name])
|
||
|
|
if file_name not in Path(fm.findfont(fp)).name:
|
||
|
|
pytest.skip(f"Font {family_name} ({file_name}) is missing")
|
||
|
|
|
||
|
|
text = ["There are", "几个汉字", "in between!"]
|
||
|
|
|
||
|
|
plt.rcParams["font.size"] = 20
|
||
|
|
test_fonts = [["DejaVu Sans", family_name]] * 3
|
||
|
|
ref_fonts = [["DejaVu Sans"], [family_name], ["DejaVu Sans"]]
|
||
|
|
|
||
|
|
for j, (txt, test_font, ref_font) in enumerate(
|
||
|
|
zip(text, test_fonts, ref_fonts)
|
||
|
|
):
|
||
|
|
fig_ref.text(0.05, .85 - 0.15*j, txt, family=ref_font)
|
||
|
|
fig_test.text(0.05, .85 - 0.15*j, txt, family=test_font)
|
||
|
|
|
||
|
|
|
||
|
|
@pytest.mark.parametrize("font_list",
|
||
|
|
[['DejaVu Serif', 'DejaVu Sans'],
|
||
|
|
['DejaVu Sans Mono']],
|
||
|
|
ids=["two fonts", "one font"])
|
||
|
|
def test_fallback_missing(recwarn, font_list):
|
||
|
|
fig = plt.figure()
|
||
|
|
fig.text(.5, .5, "Hello 🙃 World!", family=font_list)
|
||
|
|
fig.canvas.draw()
|
||
|
|
assert all(isinstance(warn.message, UserWarning) for warn in recwarn)
|
||
|
|
# not sure order is guaranteed on the font listing so
|
||
|
|
assert recwarn[0].message.args[0].startswith(
|
||
|
|
"Glyph 128579 (\\N{UPSIDE-DOWN FACE}) missing from font(s)")
|
||
|
|
assert all([font in recwarn[0].message.args[0] for font in font_list])
|
||
|
|
|
||
|
|
|
||
|
|
@pytest.mark.parametrize(
|
||
|
|
"family_name, file_name",
|
||
|
|
[
|
||
|
|
("WenQuanYi Zen Hei", "wqy-zenhei"),
|
||
|
|
("Noto Sans CJK JP", "NotoSansCJK"),
|
||
|
|
("Noto Sans TC", "NotoSansTC-Regular.otf")
|
||
|
|
],
|
||
|
|
)
|
||
|
|
def test__get_fontmap(family_name, file_name):
|
||
|
|
fp = fm.FontProperties(family=[family_name])
|
||
|
|
found_file_name = Path(fm.findfont(fp)).name
|
||
|
|
if file_name not in found_file_name:
|
||
|
|
pytest.skip(f"Font {family_name} ({file_name}) is missing")
|
||
|
|
|
||
|
|
text = "There are 几个汉字 in between!"
|
||
|
|
ft = fm.get_font(
|
||
|
|
fm.fontManager._find_fonts_by_props(
|
||
|
|
fm.FontProperties(family=["DejaVu Sans", family_name])
|
||
|
|
)
|
||
|
|
)
|
||
|
|
fontmap = ft._get_fontmap(text)
|
||
|
|
for char, font in fontmap.items():
|
||
|
|
if ord(char) > 127:
|
||
|
|
assert Path(font.fname).name == found_file_name
|
||
|
|
else:
|
||
|
|
assert Path(font.fname).name == "DejaVuSans.ttf"
|