________________________________ test_find_ttc _________________________________
[gw1] linux -- Python 3.7.1 /home/travis/virtualenv/python3.7.1/bin/python
    @pytest.mark.xfail(not (os.environ.get("TRAVIS") and sys.platform == "linux"),
                       reason="Font may be missing.")
    def test_find_ttc():
        fp = FontProperties(family=["WenQuanYi Zen Hei"])
        font = findfont(fp)
>       assert Path(font).name == "wqy-zenhei.ttc"
E       AssertionError: assert 'DejaVuSans.ttf' == 'wqy-zenhei.ttc'
E         - DejaVuSans.ttf
E         + wqy-zenhei.ttc
lib/matplotlib/tests/test_font_manager.py:117: AssertionError