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# test_samples.py
#
# Copyright 2024 James Westman <james@jwestman.net>
#
# This file is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation; either version 3 of the
# License, or (at your option) any later version.
#
# This file 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# SPDX-License-Identifier: LGPL-3.0-or-later
import unittest
import gi
gi.require_version("Gtk", "4.0")
from gi.repository import Gtk
from blueprintcompiler import parser, tokenizer
from blueprintcompiler.errors import DeprecatedWarning, PrintableError
# Testing deprecation warnings requires special handling because libraries can add deprecations with new versions,
# causing tests to break if we're not careful.
class TestDeprecations(unittest.TestCase):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.gtkVersion = f"{Gtk.get_major_version()}.{Gtk.get_minor_version()}.{Gtk.get_micro_version()}"
def assertDeprecation(self, blueprint: str, message: str):
try:
tokens = tokenizer.tokenize(blueprint)
_ast, errors, warnings = parser.parse(tokens)
self.assertIsNone(errors)
self.assertEqual(len(warnings), 1)
self.assertIsInstance(warnings[0], DeprecatedWarning)
self.assertEqual(warnings[0].message, message)
except PrintableError as e: # pragma: no cover
e.pretty_print("<deprecations test>", blueprint)
raise AssertionError()
def test_class_deprecation(self):
if Gtk.check_version(4, 10, 0) is not None:
self.skipTest(f"Gtk.Dialog is not deprecated in GTK {self.gtkVersion}")
blueprint = """
using Gtk 4.0;
Dialog {
use-header-bar: 1;
}
"""
message = "Gtk.Dialog is deprecated"
self.assertDeprecation(blueprint, message)
def test_property_deprecation(self):
self.skipTest(
"gobject-introspection does not currently write property deprecations to the typelib. See <https://gitlab.gnome.org/GNOME/gobject-introspection/-/merge_requests/410>."
)
if Gtk.check_version(4, 4, 0) is not None:
self.skipTest(
f"Gtk.DropTarget:drop is not deprecated in GTK {self.gtkVersion}"
)
blueprint = """
using Gtk 4.0;
$MyObject {
a: bind drop_target.drop;
}
DropTarget drop_target {
}
"""
message = "Gtk.DropTarget:drop is deprecated"
self.assertDeprecation(blueprint, message)
def test_signal_deprecation(self):
if Gtk.check_version(4, 10, 0) is not None:
self.skipTest(
f"Gtk.Window::keys-changed is not deprecated in GTK {self.gtkVersion}"
)
blueprint = """
using Gtk 4.0;
Window {
keys-changed => $handler();
}
"""
message = "signal Gtk.Window::keys-changed () is deprecated"
self.assertDeprecation(blueprint, message)
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