Automated testing

[pllim]

Ideas: http://stackoverflow.com/questions/1616228/pyqt-gui-testing

[pllim]

I briefly played with pytest-qt that Cubeviz uses but quickly got stuck:

from PyQt5 import QtCore

from ginga.misc.log import get_logger
from ginga.misc.ModuleManager import ModuleManager
from ginga.misc.Settings import Preferences
from ginga.rv.Control import GingaShell


def test1(qtbot, tmpdir):
    logger = get_logger("my viewer", null=True)
    gs = GingaShell(logger, None, ModuleManager(logger),
                    Preferences(basefolder=tmpdir.strpath, logger=logger))
    w = gs.w.menubar
    qtbot.addWidget(w.widget)
    qtbot.mouseClick(w.get_menu("Channel".get_menu("Add Channel")),
                     QtCore.Qt.LeftButton)

    # But pop-up dialog that is Button inside HBox inside VBox!
    # How to click OK here?

There is option to mock the whole dialog pop-up (https://pytest-qt.readthedocs.io/en/latest/note_dialogs.html) but wouldn't that defeat the purpose of GUI testing?

Regardless, I am not sure if this is the correct solution as this purely tests Qt interactions, while Ginga supports a few other backends (e.g., GTK, GTK3, and Jupyter notebook) and has its own toolkit-agnostic widgets. Ideally, it would be nice to write the test only one time but can work for different backends being used (too ambitious?).

http://www.sikuli.org/ was also suggested but it appears to be Java/JavaScript/Jython intensive and its stance on Python 3 is unclear ("Python (language level 2.7) supported by the Jython interpreter"). xref sikuli/sikuli#48

[pllim]

Looks like Jython is not yet PY3 compatible -- https://stackoverflow.com/questions/2351008/when-will-jython-support-python-3 (latest update in late 2017 with no solid timeline given).