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# Copyright 2020 Canonical, Ltd.
#
# This program 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, version 3.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
import urwid
from subiquitycore.tests import SubiTestCase
from subiquitycore.view import BaseView
from subiquitycore.ui.stretchy import Stretchy, StretchyOverlay
from subiquitycore.ui.utils import undisabled
class TestStretchy(Stretchy):
was_opened = was_closed = False
def __init__(self):
super().__init__("", [urwid.Text("")], 0, 0)
def opened(self):
self.was_opened = True
def closed(self):
self.was_closed = True
class TestBaseView(SubiTestCase):
def get_stretchy_chain(self, view):
view = view._w
r = []
while isinstance(view, StretchyOverlay):
r.append(view.stretchy)
view = undisabled(view.bottom_w)
return r
def test_basic(self):
bv = BaseView(urwid.Text(""))
s = TestStretchy()
self.assertEqual(self.get_stretchy_chain(bv), [])
bv.show_stretchy_overlay(s)
self.assertTrue(s.was_opened)
self.assertEqual(self.get_stretchy_chain(bv), [s])
bv.remove_overlay()
self.assertTrue(s.was_closed)
self.assertEqual(self.get_stretchy_chain(bv), [])
bv.show_stretchy_overlay(s)
bv.remove_overlay(s)
self.assertEqual(self.get_stretchy_chain(bv), [])
def make_view_with_overlays(self):
bv = BaseView(urwid.Text(""))
a = TestStretchy()
b = TestStretchy()
c = TestStretchy()
bv.show_stretchy_overlay(a)
bv.show_stretchy_overlay(b)
bv.show_stretchy_overlay(c)
return bv, a, b, c
def test_multiple(self):
bv, a, b, c = self.make_view_with_overlays()
self.assertEqual(self.get_stretchy_chain(bv), [c, b, a])
bv, a, b, c = self.make_view_with_overlays()
bv.remove_overlay(a)
self.assertTrue(a.was_closed)
self.assertEqual(self.get_stretchy_chain(bv), [c, b])
bv, a, b, c = self.make_view_with_overlays()
bv.remove_overlay(b)
self.assertTrue(b.was_closed)
self.assertEqual(self.get_stretchy_chain(bv), [c, a])
bv, a, b, c = self.make_view_with_overlays()
bv.remove_overlay(c)
self.assertTrue(c.was_closed)
self.assertEqual(self.get_stretchy_chain(bv), [b, a])
bv, a, b, c = self.make_view_with_overlays()
bv.remove_overlay()
self.assertTrue(c.was_closed)
self.assertEqual(self.get_stretchy_chain(bv), [b, a])