1from __future__ import absolute_import, division, print_function 2 3import matplotlib.pyplot as plt 4from matplotlib.texmanager import TexManager 5 6 7def test_fontconfig_preamble(): 8 """ 9 Test that the preamble is included in _fontconfig 10 """ 11 plt.rcParams['text.usetex'] = True 12 13 tm1 = TexManager() 14 font_config1 = tm1.get_font_config() 15 16 plt.rcParams['text.latex.preamble'] = ['\\usepackage{txfonts}'] 17 tm2 = TexManager() 18 font_config2 = tm2.get_font_config() 19 20 assert font_config1 != font_config2 21