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# SPDX-FileCopyrightText: Florian Bruhin (The Compiler) <mail@qutebrowser.org>
#
# SPDX-License-Identifier: GPL-3.0-or-later
import string
import functools
import operator
import pytest
from qutebrowser.qt.core import QUrl
from qutebrowser.utils import usertypes
import qutebrowser.browser.hints
@pytest.fixture(autouse=True)
def setup(win_registry, mode_manager):
pass
@pytest.fixture
def tabbed_browser(tabbed_browser_stubs, web_tab):
tb = tabbed_browser_stubs[0]
tb.widget.tabs = [web_tab]
tb.widget.current_index = 1
tb.widget.cur_url = QUrl('https://www.example.com/')
web_tab.container.expose() # No elements found if we don't do this.
return tb
def test_show_benchmark(benchmark, tabbed_browser, qtbot, mode_manager):
"""Benchmark showing/drawing of hint labels."""
tab = tabbed_browser.widget.tabs[0]
with qtbot.wait_signal(tab.load_finished):
tab.load_url(QUrl('qute://testdata/data/hints/benchmark.html'))
manager = qutebrowser.browser.hints.HintManager(win_id=0)
def bench():
with qtbot.wait_signal(mode_manager.entered):
manager.start()
with qtbot.wait_signal(mode_manager.left):
mode_manager.leave(usertypes.KeyMode.hint)
benchmark(bench)
def test_match_benchmark(benchmark, tabbed_browser, qtbot, mode_manager, qapp,
config_stub):
"""Benchmark matching of hint labels."""
tab = tabbed_browser.widget.tabs[0]
with qtbot.wait_signal(tab.load_finished):
tab.load_url(QUrl('qute://testdata/data/hints/benchmark.html'))
config_stub.val.hints.scatter = False
manager = qutebrowser.browser.hints.HintManager(win_id=0)
with qtbot.wait_signal(mode_manager.entered):
manager.start()
def bench():
manager.handle_partial_key('a')
qapp.processEvents()
manager.handle_partial_key('')
qapp.processEvents()
benchmark(bench)
with qtbot.wait_signal(mode_manager.left):
mode_manager.leave(usertypes.KeyMode.hint)
@pytest.mark.parametrize('min_len', [0, 3])
@pytest.mark.parametrize('num_chars', [5, 9])
@pytest.mark.parametrize('num_elements', [*range(1, 26), 125])
def test_scattered_hints_count(min_len, num_chars, num_elements):
"""Test scattered hints function.
Tests many properties from an invocation of _hint_scattered, including
1. Hints must be unique
2. There can only be two hint lengths, only 1 apart
3. There are no unique prefixes for long hints, such as 'la' with no 'l<x>'
"""
manager = qutebrowser.browser.hints.HintManager(win_id=0)
chars = string.ascii_lowercase[:num_chars]
hints = manager._hint_scattered(min_len, chars,
list(range(num_elements)))
# Check if hints are unique
assert len(hints) == len(set(hints))
# Check if any hints are shorter than min_len
assert not any(x for x in hints if len(x) < min_len)
# Check we don't have more than 2 link lengths
# Eg: 'a' 'bc' and 'def' cannot be in the same hint string
hint_lens = {len(h) for h in hints}
assert len(hint_lens) <= 2
if len(hint_lens) == 2:
# Check if hint_lens are more than 1 apart
# Eg: 'abc' and 'd' cannot be in the same hint sequence, but
# 'ab' and 'c' can
assert abs(functools.reduce(operator.sub, hint_lens)) <= 1
longest_hint_len = max(hint_lens)
shortest_hint_len = min(hint_lens)
longest_hints = [x for x in hints if len(x) == longest_hint_len]
if min_len < max(hint_lens) - 1:
# Check if we have any unique prefixes. For example, 'la'
# alone, with no other 'l<x>'
count_map = {}
for x in longest_hints:
prefix = x[:-1]
count_map[prefix] = count_map.get(prefix, 0) + 1
assert all(e != 1 for e in count_map.values())
# Check that the longest hint length isn't too long
if longest_hint_len > min_len and longest_hint_len > 1:
assert num_chars ** (longest_hint_len - 1) < num_elements
# Check longest hint is not too short
assert num_chars ** longest_hint_len >= num_elements
if longest_hint_len > min_len and longest_hint_len > 1:
# Check that the longest hint length isn't too long
assert num_chars ** (longest_hint_len - 1) < num_elements
if shortest_hint_len == longest_hint_len:
# Check that we really couldn't use any short links
assert ((num_chars ** longest_hint_len) - num_elements <
len(chars) - 1)
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