# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:

# Copyright 2018 Ryan Roden-Corrent (rcorre) <ryan@rcorre.net>
#
# 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 <http://www.gnu.org/licenses/>.
from unittest import mock

import pytest
from PyQt5.QtCore import Qt
from PyQt5.QtGui import QTextDocument

from qutebrowser.completion import completiondelegate


@pytest.mark.parametrize('pat,txt,segments', [
    ('foo', 'foo', [(0, 3)]),
    ('foo', 'foobar', [(0, 3)]),
    ('foo', 'FOObar', [(0, 3)]),  # re.IGNORECASE
    ('foo', 'barfoo', [(3, 3)]),
    ('foo', 'barfoobaz', [(3, 3)]),
    ('foo', 'barfoobazfoo', [(3, 3), (9, 3)]),
    ('foo', 'foofoo', [(0, 3), (3, 3)]),
    ('a|b', 'cadb', [(1, 1), (3, 1)]),
    ('foo', '<foo>', [(1, 3)]),
    ('<a>', "<a>bc", [(0, 3)]),

    # https://github.com/qutebrowser/qutebrowser/issues/4199
    ('foo', "'foo'", [(1, 3)]),
    ('x', "'x'", [(1, 1)]),
    ('lt', "<lt", [(1, 2)]),
])
def test_highlight(pat, txt, segments):
    doc = QTextDocument(txt)
    highlighter = completiondelegate._Highlighter(doc, pat, Qt.red)
    highlighter.setFormat = mock.Mock()
    highlighter.highlightBlock(txt)
    highlighter.setFormat.assert_has_calls([
        mock.call(s[0], s[1], mock.ANY) for s in segments
    ])
