From d30f8950b9cb8ddc8cb4b626190b3b50792be38c 2023-01-03 12:43:16 From: Emilio Graff <1@emil.io> Date: 2023-01-03 12:43:16 Subject: [PATCH] TST: smoke test for `get_inputhook_name_and_func` --- diff --git a/IPython/terminal/tests/test_pt_inputhooks.py b/IPython/terminal/tests/test_pt_inputhooks.py new file mode 100644 index 0000000..b9aa476 --- /dev/null +++ b/IPython/terminal/tests/test_pt_inputhooks.py @@ -0,0 +1,48 @@ +import os +import importlib + +import pytest + +from IPython.terminal.pt_inputhooks import set_qt_api, get_inputhook_name_and_func + + +guis_avail = [] + + +def _get_qt_vers(): + """If any version of Qt is available, this will populate `guis_avail` with 'qt' and 'qtx'. Due + to the import mechanism, we can't import multiple versions of Qt in one session.""" + for gui in ['qt', 'qt6', 'qt5', 'qt4']: + print(f'Trying {gui}') + try: + set_qt_api(gui) + importlib.import_module("IPython.terminal.pt_inputhooks.qt") + guis_avail.append(gui) + if 'QT_API' in os.environ.keys(): + del os.environ['QT_API'] + except ImportError: + pass # that version of Qt isn't available. + except RuntimeError: + pass # the version of IPython doesn't know what to do with this Qt version. + + +_get_qt_vers() + + +@pytest.mark.skipif(len(guis_avail) == 0, reason='No viable version of PyQt or PySide installed.') +def test_inputhook_qt(): + gui = guis_avail[0] + + # Choose a qt version and get the input hook function. This will import Qt... + get_inputhook_name_and_func(gui) + + # ...and now we're stuck with this version of Qt for good; can't switch. + for not_gui in ['qt6', 'qt5', 'qt4']: + if not_gui not in guis_avail: + break + + with pytest.raises(ImportError): + get_inputhook_name_and_func(not_gui) + + # A gui of 'qt' means "best available", or in this case, the last one that was used. + get_inputhook_name_and_func('qt')