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# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
# Copyright 2021 Florian Bruhin (The Compiler) <mail@qutebrowser.org>
#
# This file is part of qutebrowser.
#
# qutebrowser is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# qutebrowser is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with qutebrowser. If not, see <https://www.gnu.org/licenses/>.
"""Test qutebrowser.qt.machinery."""
import sys
import argparse
import typing
from typing import Any, Optional, Dict, List
import pytest
from qutebrowser.qt import machinery
def test_unavailable_is_importerror():
with pytest.raises(ImportError):
raise machinery.Unavailable()
@pytest.fixture
def modules():
"""Return a dict of modules to import-patch, all unavailable by default."""
return dict.fromkeys(machinery.WRAPPERS, False)
def test_autoselect_none_available(
stubs: Any,
modules: Dict[str, bool],
monkeypatch: pytest.MonkeyPatch,
):
stubs.ImportFake(modules, monkeypatch).patch()
message = "No Qt wrapper found, tried PyQt6, PyQt5"
with pytest.raises(machinery.Error, match=message):
machinery._autoselect_wrapper()
@pytest.mark.parametrize(
"available, expected",
[
(["PyQt6"], "PyQt6"),
(["PyQt5"], "PyQt5"),
(["PyQt5", "PyQt6"], "PyQt6"),
],
)
def test_autoselect(
stubs: Any,
modules: Dict[str, bool],
available: List[str],
expected: str,
monkeypatch: pytest.MonkeyPatch,
):
for wrapper in available:
modules[wrapper] = True
stubs.ImportFake(modules, monkeypatch).patch()
assert machinery._autoselect_wrapper() == expected
@pytest.mark.parametrize(
"args, env, expected",
[
# Defaults with no overrides
(None, None, "PyQt5"),
(argparse.Namespace(qt_wrapper=None), None, "PyQt5"),
# Only argument given
(argparse.Namespace(qt_wrapper="PyQt6"), None, "PyQt6"),
(argparse.Namespace(qt_wrapper="PyQt5"), None, "PyQt5"),
# Only environment variable given
(None, "PyQt6", "PyQt6"),
(None, "PyQt5", "PyQt5"),
# Both given
(argparse.Namespace(qt_wrapper="PyQt5"), "PyQt6", "PyQt5"),
(argparse.Namespace(qt_wrapper="PyQt6"), "PyQt5", "PyQt6"),
(argparse.Namespace(qt_wrapper="PyQt6"), "PyQt6", "PyQt6"),
],
)
def test_select_wrapper(
args: Optional[argparse.Namespace],
env: Optional[str],
expected: str,
monkeypatch: pytest.MonkeyPatch,
):
if env is None:
monkeypatch.delenv("QUTE_QT_WRAPPER", raising=False)
else:
monkeypatch.setenv("QUTE_QT_WRAPPER", env)
assert machinery._select_wrapper(args) == expected
def test_init_multiple_implicit(monkeypatch: pytest.MonkeyPatch):
monkeypatch.setattr(machinery, "_initialized", True)
machinery.init()
machinery.init()
def test_init_multiple_explicit(monkeypatch: pytest.MonkeyPatch):
monkeypatch.setattr(machinery, "_initialized", True)
machinery.init()
with pytest.raises(
machinery.Error, match=r"init\(\) already called before application init"
):
machinery.init(args=argparse.Namespace(qt_wrapper="PyQt6"))
def test_init_after_qt_import(monkeypatch: pytest.MonkeyPatch):
monkeypatch.setattr(machinery, "_initialized", False)
with pytest.raises(machinery.Error, match="Py.* already imported"):
machinery.init()
@pytest.mark.parametrize(
"selected_wrapper, true_vars",
[
("PyQt6", ["USE_PYQT6", "IS_QT6", "IS_PYQT"]),
("PyQt5", ["USE_PYQT5", "IS_QT5", "IS_PYQT"]),
("PySide6", ["USE_PYSIDE6", "IS_QT6", "IS_PYSIDE"]),
],
)
def test_init_properly(
monkeypatch: pytest.MonkeyPatch, selected_wrapper: str, true_vars: str
):
for wrapper in machinery.WRAPPERS:
monkeypatch.delitem(sys.modules, wrapper, raising=False)
monkeypatch.setattr(machinery, "_initialized", False)
bool_vars = [
"USE_PYQT5",
"USE_PYQT6",
"USE_PYSIDE6",
"IS_QT5",
"IS_QT6",
"IS_PYQT",
"IS_PYSIDE",
]
# Make sure we didn't forget anything that's declared in the module.
# Not sure if this is a good idea. Might remove it in the future if it breaks.
assert set(typing.get_type_hints(machinery).keys()) == set(bool_vars) | {"WRAPPER"}
for var in ["WRAPPER"] + bool_vars:
monkeypatch.delattr(machinery, var)
monkeypatch.setattr(machinery, "_select_wrapper", lambda args: selected_wrapper)
machinery.init()
assert machinery.WRAPPER == selected_wrapper
expected_vars = dict.fromkeys(bool_vars, False)
expected_vars.update(dict.fromkeys(true_vars, True))
actual_vars = {var: getattr(machinery, var) for var in bool_vars}
assert expected_vars == actual_vars
|
