dupeguru/hscommon/tests/selectable_list_test.py

# Created By: Virgil Dupras
# Created On: 2011-09-06
# Copyright 2015 Hardcoded Software (http://www.hardcoded.net)
#
# This software is licensed under the "GPLv3" License as described in the "LICENSE" file,
# which should be included with this package. The terms are also available at
# http://www.gnu.org/licenses/gpl-3.0.html

from hscommon.testutil import eq_, callcounter, CallLogger
from hscommon.gui.selectable_list import SelectableList, GUISelectableList


def test_in():
    # When a SelectableList is in a list, doing "in list" with another instance returns false, even
    # if they're the same as lists.
    sl = SelectableList()
    some_list = [sl]
    assert SelectableList() not in some_list


def test_selection_range():
    # selection is correctly adjusted on deletion
    sl = SelectableList(["foo", "bar", "baz"])
    sl.selected_index = 3
    eq_(sl.selected_index, 2)
    del sl[2]
    eq_(sl.selected_index, 1)


def test_update_selection_called():
    # _update_selection_is called after a change in selection. However, we only do so on select()
    # calls. I follow the old behavior of the Table class. At the moment, I don't quite remember
    # why there was a specific select() method for triggering _update_selection(), but I think I
    # remember there was a reason, so I keep it that way.
    sl = SelectableList(["foo", "bar"])
    sl._update_selection = callcounter()
    sl.select(1)
    eq_(sl._update_selection.callcount, 1)
    sl.selected_index = 0
    eq_(sl._update_selection.callcount, 1)  # no call


def test_guicalls():
    # A GUISelectableList appropriately calls its view.
    sl = GUISelectableList(["foo", "bar"])
    sl.view = CallLogger()
    sl.view.check_gui_calls(["refresh"])  # Upon setting the view, we get a call to refresh()
    sl[1] = "baz"
    sl.view.check_gui_calls(["refresh"])
    sl.append("foo")
    sl.view.check_gui_calls(["refresh"])
    del sl[2]
    sl.view.check_gui_calls(["refresh"])
    sl.remove("baz")
    sl.view.check_gui_calls(["refresh"])
    sl.insert(0, "foo")
    sl.view.check_gui_calls(["refresh"])
    sl.select(1)
    sl.view.check_gui_calls(["update_selection"])
    # XXX We have to give up on this for now because of a breakage it causes in the tables.
    # sl.select(1) # don't update when selection stays the same
    # gui.check_gui_calls([])


def test_search_by_prefix():
    sl = SelectableList(["foo", "bAr", "baZ"])
    eq_(sl.search_by_prefix("b"), 1)
    eq_(sl.search_by_prefix("BA"), 1)
    eq_(sl.search_by_prefix("BAZ"), 2)
    eq_(sl.search_by_prefix("BAZZ"), -1)