35 lines
1.1 KiB
Python
35 lines
1.1 KiB
Python
import warnings
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import pytest
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import matplotlib
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from matplotlib.testing.decorators import image_comparison
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import matplotlib.pyplot as plt
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from matplotlib.ticker import EngFormatter
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with warnings.catch_warnings():
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warnings.simplefilter('ignore')
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needs_usetex = pytest.mark.skipif(
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not matplotlib.checkdep_usetex(True),
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reason='Missing TeX of Ghostscript or dvipng')
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@needs_usetex
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@image_comparison(baseline_images=['test_usetex'],
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extensions=['pdf', 'png'],
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tol=0.3)
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def test_usetex():
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matplotlib.rcParams['text.usetex'] = True
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fig = plt.figure()
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ax = fig.add_subplot(111)
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ax.text(0.1, 0.2,
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# the \LaTeX macro exercises character sizing and placement,
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# \left[ ... \right\} draw some variable-height characters,
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# \sqrt and \frac draw horizontal rules, \mathrm changes the font
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r'\LaTeX\ $\left[\int\limits_e^{2e}'
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r'\sqrt\frac{\log^3 x}{x}\,\mathrm{d}x \right\}$',
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fontsize=24)
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ax.set_xticks([])
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ax.set_yticks([])
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