qutebrowser/tests/unit/completion/test_completer.py
Florian Bruhin fb3da578c5 Fix lint
2016-08-09 17:28:14 +02:00

243 lines
8.8 KiB
Python

# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
# Copyright 2016 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/>.
"""Tests for the Completer Object."""
import unittest.mock
import pytest
from PyQt5.QtCore import QObject
from PyQt5.QtGui import QStandardItemModel
from qutebrowser.completion import completer
from qutebrowser.utils import usertypes
from qutebrowser.commands import command, cmdutils
class FakeCompletionModel(QStandardItemModel):
"""Stub for a completion model."""
DUMB_SORT = None
def __init__(self, kind, parent=None):
super().__init__(parent)
self.kind = kind
class CompletionWidgetStub(QObject):
"""Stub for the CompletionView."""
def __init__(self, parent=None):
super().__init__(parent)
self.hide = unittest.mock.Mock()
self.show = unittest.mock.Mock()
self.set_pattern = unittest.mock.Mock()
self.model = unittest.mock.Mock()
self.set_model = unittest.mock.Mock()
self.enabled = unittest.mock.Mock()
@pytest.fixture
def completion_widget_stub():
return CompletionWidgetStub()
@pytest.fixture
def completer_obj(qtbot, status_command_stub, config_stub, monkeypatch, stubs,
completion_widget_stub):
"""Create the completer used for testing."""
monkeypatch.setattr('qutebrowser.completion.completer.QTimer',
stubs.InstaTimer)
config_stub.data = {'completion': {'auto-open': False}}
return completer.Completer(status_command_stub, 0, completion_widget_stub)
@pytest.fixture(autouse=True)
def instances(monkeypatch):
"""Mock the instances module so get returns a fake completion model."""
# populate a model for each completion type, with a nested structure for
# option and value completion
instances = {kind: FakeCompletionModel(kind)
for kind in usertypes.Completion}
instances[usertypes.Completion.option] = {
'general': FakeCompletionModel(usertypes.Completion.option),
}
instances[usertypes.Completion.value] = {
'general': {
'ignore-case': FakeCompletionModel(usertypes.Completion.value),
}
}
monkeypatch.setattr('qutebrowser.completion.completer.instances',
instances)
@pytest.fixture(autouse=True)
def cmdutils_patch(monkeypatch, stubs):
"""Patch the cmdutils module to provide fake commands."""
@cmdutils.argument('section_', completion=usertypes.Completion.section)
@cmdutils.argument('option', completion=usertypes.Completion.option)
@cmdutils.argument('value', completion=usertypes.Completion.value)
def set_command(section_=None, option=None, value=None):
"""docstring."""
pass
@cmdutils.argument('topic', completion=usertypes.Completion.helptopic)
def show_help(tab=False, bg=False, window=False, topic=None):
"""docstring."""
pass
@cmdutils.argument('url', completion=usertypes.Completion.url)
@cmdutils.argument('count', count=True)
def openurl(url=None, implicit=False, bg=False, tab=False, window=False,
count=None):
"""docstring."""
pass
@cmdutils.argument('win_id', win_id=True)
@cmdutils.argument('command', completion=usertypes.Completion.command)
def bind(key, win_id, command=None, *, mode='normal', force=False):
"""docstring."""
# pylint: disable=unused-variable
pass
def tab_detach():
"""docstring."""
pass
cmds = {
'set': set_command,
'help': show_help,
'open': openurl,
'bind': bind,
'tab-detach': tab_detach,
}
cmd_utils = stubs.FakeCmdUtils({
name: command.Command(name=name, handler=fn)
for name, fn in cmds.items()
})
monkeypatch.setattr('qutebrowser.completion.completer.cmdutils', cmd_utils)
def _set_cmd_prompt(cmd, txt):
"""Set the command prompt's text and cursor position.
Args:
cmd: The command prompt object.
txt: The prompt text, using | as a placeholder for the cursor position.
"""
cmd.setText(txt.replace('|', ''))
cmd.setCursorPosition(txt.index('|'))
def _validate_cmd_prompt(cmd, txt):
"""Interpret fake command prompt text using | as the cursor placeholder.
Args:
cmd: The command prompt object.
txt: The prompt text, using | as a placeholder for the cursor position.
"""
assert cmd.cursorPosition() == txt.index('|')
assert cmd.text() == txt.replace('|', '')
@pytest.mark.parametrize('txt, expected', [
(':nope|', usertypes.Completion.command),
(':nope |', None),
(':set |', usertypes.Completion.section),
(':set gen|', usertypes.Completion.section),
(':set general |', usertypes.Completion.option),
(':set what |', None),
(':set general ignore-case |', usertypes.Completion.value),
(':set general huh |', None),
(':help |', usertypes.Completion.helptopic),
(':help |', usertypes.Completion.helptopic),
(':open |', usertypes.Completion.url),
(':bind |', None),
(':bind <c-x> |', usertypes.Completion.command),
(':bind <c-x> foo|', usertypes.Completion.command),
(':bind <c-x>| foo', None),
(':set| general ', usertypes.Completion.command),
(':|set general ', usertypes.Completion.command),
(':set gene|ral ignore-case', usertypes.Completion.section),
(':|', usertypes.Completion.command),
(': |', usertypes.Completion.command),
('/|', None),
(':open -t|', None),
(':open --tab|', None),
(':open -t |', usertypes.Completion.url),
(':open --tab |', usertypes.Completion.url),
(':open | -t', usertypes.Completion.url),
(':--foo --bar |', None),
(':tab-detach |', None),
(':bind --mode=caret <c-x> |', usertypes.Completion.command),
pytest.mark.xfail(reason='issue #74')((':bind --mode caret <c-x> |',
usertypes.Completion.command)),
(':set -t -p |', usertypes.Completion.section),
(':open -- |', None),
])
def test_update_completion(txt, expected, status_command_stub, completer_obj,
completion_widget_stub):
"""Test setting the completion widget's model based on command text."""
# this test uses | as a placeholder for the current cursor position
_set_cmd_prompt(status_command_stub, txt)
completer_obj.schedule_completion_update()
if expected is None:
assert not completion_widget_stub.set_model.called
else:
assert completion_widget_stub.set_model.call_count == 1
arg = completion_widget_stub.set_model.call_args[0][0]
# the outer model is just for sorting; srcmodel is the completion model
assert arg.srcmodel.kind == expected
@pytest.mark.parametrize('before, newtxt, quick_complete, count, after', [
(':foo |', 'bar', False, 1, ':foo bar|'),
(':foo |', 'bar', True, 2, ':foo bar|'),
(':foo |', 'bar', True, 1, ':foo bar |'),
(':foo | bar', 'baz', False, 1, ':foo baz| bar'),
(':foo |', 'bar baz', True, 1, ":foo 'bar baz' |"),
(':foo |', '', True, 1, ":foo '' |"),
(':foo |', None, True, 1, ":foo |"),
])
def test_on_selection_changed(before, newtxt, count, quick_complete, after,
completer_obj, status_command_stub,
completion_widget_stub, config_stub):
"""Test that on_selection_changed modifies the cmd text properly.
The | represents the current cursor position in the cmd prompt.
If quick-complete is True and there is only 1 completion (count == 1),
then we expect a space to be appended after the current word.
"""
config_stub.data['completion']['quick-complete'] = quick_complete
model = unittest.mock.Mock()
model.data = unittest.mock.Mock(return_value=newtxt)
model.count = unittest.mock.Mock(return_value=count)
indexes = [unittest.mock.Mock()]
selection = unittest.mock.Mock()
selection.indexes = unittest.mock.Mock(return_value=indexes)
completion_widget_stub.model.return_value = model
_set_cmd_prompt(status_command_stub, before)
# schedule_completion_update is needed to pick up the cursor position
completer_obj.schedule_completion_update()
completer_obj.on_selection_changed(selection)
model.data.assert_called_with(indexes[0])
_validate_cmd_prompt(status_command_stub, after)