38 lines
1.2 KiB
Python
38 lines
1.2 KiB
Python
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import pytest
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import platform
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import matplotlib as mpl
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from matplotlib.testing.decorators import check_figures_equal, image_comparison
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import matplotlib.pyplot as plt
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from matplotlib.ticker import EngFormatter
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@pytest.fixture(autouse=True) # All tests in this module use usetex.
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def usetex():
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if not mpl.checkdep_usetex(True):
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pytest.skip('Missing TeX of Ghostscript or dvipng')
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mpl.rcParams['text.usetex'] = True
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@image_comparison(baseline_images=['test_usetex'],
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extensions=['pdf', 'png'],
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tol={'aarch64': 2.868}.get(platform.machine(), 0.3))
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def test_usetex():
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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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@check_figures_equal()
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def test_unicode_minus(fig_test, fig_ref):
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fig_test.text(.5, .5, "$-$")
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fig_ref.text(.5, .5, "\N{MINUS SIGN}")
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