Add/improve tests for qutebrowser.utils.utils.
This commit is contained in:
Florian Bruhin
parent
4a4856c176
commit
4204579c06
@ -50,8 +50,6 @@ def elide(text, length):
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def compact_text(text, elidelength=None):
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"""Remove leading whitespace and newlines from a text and maybe elide it.
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FIXME: Add tests.
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Args:
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text: The text to compact.
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elidelength: To how many chars to elide.
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@ -105,12 +103,12 @@ def actute_warning():
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try:
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if qtutils.version_check('5.3.0'):
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return
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except ValueError:
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except ValueError: # pragma: no cover
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pass
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try:
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with open('/usr/share/X11/locale/en_US.UTF-8/Compose', 'r',
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encoding='utf-8') as f:
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for line in f:
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for line in f: # pragma: no branch
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if '<dead_actute>' in line:
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if sys.stdout is not None:
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sys.stdout.flush()
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@ -118,7 +116,7 @@ def actute_warning():
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"that is not a bug in qutebrowser! See "
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"https://bugs.freedesktop.org/show_bug.cgi?id=69476 "
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"for details.")
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break
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break # pragma: no branch
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except OSError:
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log.init.exception("Failed to read Compose file")
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@ -23,14 +23,22 @@ import sys
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import enum
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import datetime
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import os.path
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import io
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import logging
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import functools
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from PyQt5.QtCore import Qt
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from PyQt5.QtGui import QColor
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import pytest
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import qutebrowser
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import qutebrowser.utils # for test_qualname
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from qutebrowser.utils import utils, qtutils
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ELLIPSIS = '\u2026'
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class Color(QColor):
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"""A QColor with a nicer repr()."""
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@ -41,39 +49,193 @@ class Color(QColor):
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alpha=self.alpha())
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class TestCompactText:
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"""Test compact_text."""
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@pytest.mark.parametrize('text, expected', [
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('foo\nbar', 'foobar'),
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(' foo \n bar ', 'foobar'),
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('\nfoo\n', 'foo'),
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])
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def test_compact_text(self, text, expected):
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"""Test folding of newlines."""
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assert utils.compact_text(text) == expected
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@pytest.mark.parametrize('elidelength, text, expected', [
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(None, 'x' * 100, 'x' * 100),
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(6, 'foobar', 'foobar'),
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(5, 'foobar', 'foob' + ELLIPSIS),
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(5, 'foo\nbar', 'foob' + ELLIPSIS),
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(7, 'foo\nbar', 'foobar'),
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])
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def test_eliding(self, elidelength, text, expected):
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"""Test eliding."""
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assert utils.compact_text(text, elidelength) == expected
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class TestEliding:
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"""Test elide."""
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ELLIPSIS = '\u2026'
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def test_too_small(self):
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"""Test eliding to 0 chars which should fail."""
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with pytest.raises(ValueError):
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utils.elide('foo', 0)
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def test_length_one(self):
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"""Test eliding to 1 char which should yield ..."""
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assert utils.elide('foo', 1) == self.ELLIPSIS
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def test_fits(self):
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"""Test eliding with a string which fits exactly."""
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assert utils.elide('foo', 3) == 'foo'
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def test_elided(self):
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"""Test eliding with a string which should get elided."""
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assert utils.elide('foobar', 3) == 'fo' + self.ELLIPSIS
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@pytest.mark.parametrize('text, length, expected', [
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('foo', 1, ELLIPSIS),
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('foo', 3, 'foo'),
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('foobar', 3, 'fo' + ELLIPSIS),
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])
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def test_elided(self, text, length, expected):
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assert utils.elide(text, length) == expected
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class TestReadFile:
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"""Test read_file."""
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@pytest.fixture(autouse=True, params=[True, False])
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def freezer(self, request, monkeypatch):
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if request.param:
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monkeypatch.setattr(sys, 'frozen', True, raising=False)
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monkeypatch.setattr('sys.executable', qutebrowser.__file__)
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def test_readfile(self):
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"""Read a test file."""
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content = utils.read_file(os.path.join('utils', 'testfile'))
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assert content.splitlines()[0] == "Hello World!"
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def test_readfile_binary(self):
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"""Read a test file in binary mode."""
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content = utils.read_file(os.path.join('utils', 'testfile'),
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binary=True)
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assert content.splitlines()[0] == b"Hello World!"
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class Patcher:
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"""Helper for TestActuteWarning.
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Attributes:
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monkeypatch: The pytest monkeypatch fixture.
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"""
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def __init__(self, monkeypatch):
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self.monkeypatch = monkeypatch
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def patch_platform(self, platform='linux'):
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"""Patch sys.platform."""
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self.monkeypatch.setattr('sys.platform', platform)
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def patch_exists(self, exists=True):
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"""Patch os.path.exists."""
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self.monkeypatch.setattr('qutebrowser.utils.utils.os.path.exists',
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lambda path: exists)
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def patch_version(self, version='5.2.0'):
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"""Patch Qt version."""
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self.monkeypatch.setattr(
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'qutebrowser.utils.utils.qtutils.qVersion', lambda: version)
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def patch_file(self, data):
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"""Patch open() to return the given data."""
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fake_file = io.StringIO(data)
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self.monkeypatch.setattr(utils, 'open',
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lambda filename, mode, encoding: fake_file,
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raising=False)
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def patch_all(self, data):
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"""Patch everything so the issue would exist."""
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self.patch_platform()
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self.patch_exists()
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self.patch_version()
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self.patch_file(data)
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class TestActuteWarning:
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"""Test actute_warning."""
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@pytest.fixture
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def patcher(self, monkeypatch):
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"""Fixture providing a Patcher helper."""
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return Patcher(monkeypatch)
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def test_non_linux(self, patcher, capsys):
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"""Test with a non-Linux OS."""
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patcher.patch_platform('toaster')
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utils.actute_warning()
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out, err = capsys.readouterr()
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assert not out
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assert not err
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def test_no_compose(self, patcher, capsys):
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"""Test with no compose file."""
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patcher.patch_platform()
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patcher.patch_exists(False)
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utils.actute_warning()
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out, err = capsys.readouterr()
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assert not out
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assert not err
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def test_newer_qt(self, patcher, capsys):
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"""Test with compose file but newer Qt version."""
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patcher.patch_platform()
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patcher.patch_exists()
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patcher.patch_version('5.4')
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utils.actute_warning()
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out, err = capsys.readouterr()
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assert not out
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assert not err
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def test_no_match(self, patcher, capsys):
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"""Test with compose file and affected Qt but no match."""
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patcher.patch_all('foobar')
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utils.actute_warning()
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out, err = capsys.readouterr()
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assert not out
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assert not err
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def test_empty(self, patcher, capsys):
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"""Test with empty compose file."""
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patcher.patch_all(None)
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utils.actute_warning()
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out, err = capsys.readouterr()
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assert not out
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assert not err
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def test_match(self, patcher, capsys):
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"""Test with compose file and affected Qt and a match."""
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patcher.patch_all('foobar\n<dead_actute>\nbaz')
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utils.actute_warning()
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out, err = capsys.readouterr()
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assert out.startswith('Note: If you got a')
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assert not err
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def test_match_stdout_none(self, monkeypatch, patcher, capsys):
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"""Test with a match and stdout being None."""
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patcher.patch_all('foobar\n<dead_actute>\nbaz')
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monkeypatch.setattr('sys.stdout', None)
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utils.actute_warning()
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def test_unreadable(self, mocker, patcher, capsys, caplog):
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"""Test with an unreadable compose file."""
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patcher.patch_platform()
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patcher.patch_exists()
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patcher.patch_version()
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mocker.patch('qutebrowser.utils.utils.open', side_effect=OSError,
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create=True)
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with caplog.atLevel(logging.ERROR, 'init'):
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utils.actute_warning()
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assert len(caplog.records()) == 1
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assert caplog.records()[0].message == 'Failed to read Compose file'
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out, _err = capsys.readouterr()
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assert not out
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class TestInterpolateColor:
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@ -164,15 +326,7 @@ class TestInterpolateColor:
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assert Color(color) == expected
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class TestFormatSeconds:
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"""Tests for format_seconds.
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Class attributes:
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TESTS: A list of (input, output) tuples.
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"""
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TESTS = [
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@pytest.mark.parametrize('seconds, out', [
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(-1, '-0:01'),
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(0, '0:00'),
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(59, '0:59'),
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@ -184,23 +338,12 @@ class TestFormatSeconds:
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(3600, '1:00:00'),
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(3601, '1:00:01'),
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(36000, '10:00:00'),
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]
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@pytest.mark.parametrize('seconds, out', TESTS)
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def test_format_seconds(self, seconds, out):
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"""Test format_seconds with several tests."""
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])
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def test_format_seconds(seconds, out):
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assert utils.format_seconds(seconds) == out
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class TestFormatTimedelta:
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"""Tests for format_timedelta.
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Class attributes:
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TESTS: A list of (input, output) tuples.
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"""
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TESTS = [
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@pytest.mark.parametrize('td, out', [
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(datetime.timedelta(seconds=-1), '-1s'),
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(datetime.timedelta(seconds=0), '0s'),
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(datetime.timedelta(seconds=59), '59s'),
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@ -214,11 +357,8 @@ class TestFormatTimedelta:
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(datetime.timedelta(seconds=3723), '1h 2m 3s'),
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(datetime.timedelta(seconds=3780), '1h 3m'),
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(datetime.timedelta(seconds=36000), '10h'),
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]
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@pytest.mark.parametrize('td, out', TESTS)
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def test_format_seconds(self, td, out):
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"""Test format_seconds with several tests."""
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])
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def test_format_timedelta(td, out):
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assert utils.format_timedelta(td) == out
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@ -264,30 +404,24 @@ class TestKeyToString:
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"""Test key_to_string."""
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def test_unicode_garbage_keys(self):
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@pytest.mark.parametrize('key, expected', [
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(Qt.Key_Blue, 'Blue'),
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(Qt.Key_Backtab, 'Tab'),
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(Qt.Key_Escape, 'Escape'),
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(Qt.Key_A, 'A'),
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(Qt.Key_degree, '°'),
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])
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def test_normal(self, key, expected):
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"""Test a special key where QKeyEvent::toString works incorrectly."""
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assert utils.key_to_string(Qt.Key_Blue) == 'Blue'
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assert utils.key_to_string(key) == expected
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def test_backtab(self):
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"""Test if backtab is normalized to tab correctly."""
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assert utils.key_to_string(Qt.Key_Backtab) == 'Tab'
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def test_escape(self):
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"""Test if escape is normalized to escape correctly."""
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assert utils.key_to_string(Qt.Key_Escape) == 'Escape'
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def test_letter(self):
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"""Test a simple letter key."""
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def test_missing(self, monkeypatch):
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"""Test with a missing key."""
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monkeypatch.delattr('qutebrowser.utils.utils.Qt.Key_Blue')
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# We don't want to test the key which is actually missing - we only
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# want to know if the mapping still behaves properly.
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assert utils.key_to_string(Qt.Key_A) == 'A'
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def test_unicode(self):
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"""Test a printable unicode key."""
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assert utils.key_to_string(Qt.Key_degree) == '°'
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def test_special(self):
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"""Test a non-printable key handled by QKeyEvent::toString."""
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assert utils.key_to_string(Qt.Key_F1) == 'F1'
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class TestKeyEventToString:
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@ -323,12 +457,14 @@ class TestKeyEventToString:
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Qt.MetaModifier | Qt.ShiftModifier))
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assert utils.keyevent_to_string(evt) == 'Ctrl+Alt+Meta+Shift+A'
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def test_mac(self, monkeypatch, fake_keyevent_factory):
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"""Test with a simulated mac."""
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monkeypatch.setattr('sys.platform', 'darwin')
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evt = fake_keyevent_factory(key=Qt.Key_A, modifiers=Qt.ControlModifier)
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assert utils.keyevent_to_string(evt) == 'Meta+A'
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class TestNormalize:
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"""Test normalize_keystr."""
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STRINGS = (
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@pytest.mark.parametrize('orig, repl', [
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('Control+x', 'ctrl+x'),
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('Windows+x', 'meta+x'),
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('Mod1+x', 'alt+x'),
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@ -337,14 +473,258 @@ class TestNormalize:
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('Windows++', 'meta++'),
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('ctrl-x', 'ctrl+x'),
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('control+x', 'ctrl+x')
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)
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@pytest.mark.parametrize('orig, repl', STRINGS)
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def test_normalize(self, orig, repl):
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"""Test normalize with some strings."""
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])
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def test_normalize_keystr(orig, repl):
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assert utils.normalize_keystr(orig) == repl
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class TestFakeIOStream:
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"""Test FakeIOStream."""
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def _write_func(self, text):
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return text
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def test_flush(self):
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"""Smoke-test to see if flushing works."""
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s = utils.FakeIOStream(self._write_func)
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s.flush()
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def test_isatty(self):
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"""Make sure isatty() is always false."""
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s = utils.FakeIOStream(self._write_func)
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assert not s.isatty()
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def test_write(self):
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"""Make sure writing works."""
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s = utils.FakeIOStream(self._write_func)
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assert s.write('echo') == 'echo'
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class TestFakeIO:
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"""Test FakeIO."""
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@pytest.yield_fixture(autouse=True)
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def restore_streams(self):
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"""Restore sys.stderr/sys.stdout after tests."""
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old_stdout = sys.stdout
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old_stderr = sys.stderr
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yield
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sys.stdout = old_stdout
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sys.stderr = old_stderr
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def test_normal(self, capsys):
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"""Test without changing sys.stderr/sys.stdout."""
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data = io.StringIO()
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with utils.fake_io(data.write):
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sys.stdout.write('hello\n')
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sys.stderr.write('world\n')
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out, err = capsys.readouterr()
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assert not out
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assert not err
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assert data.getvalue() == 'hello\nworld\n'
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sys.stdout.write('back to\n')
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sys.stderr.write('normal\n')
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out, err = capsys.readouterr()
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assert out == 'back to\n'
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assert err == 'normal\n'
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def test_stdout_replaced(self, capsys):
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"""Test with replaced stdout."""
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data = io.StringIO()
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new_stdout = io.StringIO()
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with utils.fake_io(data.write):
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sys.stdout.write('hello\n')
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sys.stderr.write('world\n')
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sys.stdout = new_stdout
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out, err = capsys.readouterr()
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assert not out
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assert not err
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assert data.getvalue() == 'hello\nworld\n'
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sys.stdout.write('still new\n')
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sys.stderr.write('normal\n')
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out, err = capsys.readouterr()
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assert not out
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assert err == 'normal\n'
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assert new_stdout.getvalue() == 'still new\n'
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def test_stderr_replaced(self, capsys):
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"""Test with replaced stderr."""
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data = io.StringIO()
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new_stderr = io.StringIO()
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with utils.fake_io(data.write):
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sys.stdout.write('hello\n')
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sys.stderr.write('world\n')
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sys.stderr = new_stderr
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out, err = capsys.readouterr()
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assert not out
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assert not err
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assert data.getvalue() == 'hello\nworld\n'
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sys.stdout.write('normal\n')
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sys.stderr.write('still new\n')
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out, err = capsys.readouterr()
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assert out == 'normal\n'
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assert not err
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assert new_stderr.getvalue() == 'still new\n'
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|
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|
||||
class GotException(Exception):
|
||||
|
||||
"""Exception used for TestDisabledExcepthook."""
|
||||
|
||||
pass
|
||||
|
||||
|
||||
def excepthook(_exc, _val, _tb):
|
||||
return
|
||||
|
||||
|
||||
def excepthook_2(_exc, _val, _tb):
|
||||
return
|
||||
|
||||
|
||||
class TestDisabledExcepthook:
|
||||
|
||||
"""Test disabled_excepthook.
|
||||
|
||||
This doesn't test much as some things are untestable without triggering
|
||||
the excepthook (which is hard to test).
|
||||
"""
|
||||
|
||||
@pytest.yield_fixture(autouse=True)
|
||||
def restore_excepthook(self):
|
||||
"""Restore sys.excepthook and sys.__excepthook__ after tests."""
|
||||
old_excepthook = sys.excepthook
|
||||
old_dunder_excepthook = sys.__excepthook__
|
||||
yield
|
||||
sys.excepthook = old_excepthook
|
||||
sys.__excepthook__ = old_dunder_excepthook
|
||||
|
||||
def test_normal(self):
|
||||
"""Test without changing sys.excepthook."""
|
||||
sys.excepthook = excepthook
|
||||
assert sys.excepthook is excepthook
|
||||
with utils.disabled_excepthook():
|
||||
assert sys.excepthook is not excepthook
|
||||
assert sys.excepthook is excepthook
|
||||
|
||||
def test_changed(self):
|
||||
"""Test with changed sys.excepthook."""
|
||||
sys.excepthook = excepthook
|
||||
with utils.disabled_excepthook():
|
||||
assert sys.excepthook is not excepthook
|
||||
sys.excepthook = excepthook_2
|
||||
assert sys.excepthook is excepthook_2
|
||||
|
||||
|
||||
class TestPreventExceptions:
|
||||
|
||||
"""Test prevent_exceptions."""
|
||||
|
||||
@utils.prevent_exceptions(42)
|
||||
def func_raising(self):
|
||||
raise Exception
|
||||
|
||||
def test_raising(self, caplog):
|
||||
"""Test with a raising function."""
|
||||
with caplog.atLevel(logging.ERROR, 'misc'):
|
||||
ret = self.func_raising()
|
||||
assert ret == 42
|
||||
assert len(caplog.records()) == 1
|
||||
expected = 'Error in test_utils.TestPreventExceptions.func_raising'
|
||||
actual = caplog.records()[0].message
|
||||
assert actual == expected
|
||||
|
||||
@utils.prevent_exceptions(42)
|
||||
def func_not_raising(self):
|
||||
return 23
|
||||
|
||||
def test_not_raising(self, caplog):
|
||||
"""Test with a non-raising function."""
|
||||
with caplog.atLevel(logging.ERROR, 'misc'):
|
||||
ret = self.func_not_raising()
|
||||
assert ret == 23
|
||||
assert not caplog.records()
|
||||
|
||||
@utils.prevent_exceptions(42, True)
|
||||
def func_predicate_true(self):
|
||||
raise Exception
|
||||
|
||||
def test_predicate_true(self, caplog):
|
||||
"""Test with a True predicate."""
|
||||
with caplog.atLevel(logging.ERROR, 'misc'):
|
||||
ret = self.func_predicate_true()
|
||||
assert ret == 42
|
||||
assert len(caplog.records()) == 1
|
||||
|
||||
@utils.prevent_exceptions(42, False)
|
||||
def func_predicate_false(self):
|
||||
raise Exception
|
||||
|
||||
def test_predicate_false(self, caplog):
|
||||
"""Test with a False predicate."""
|
||||
with caplog.atLevel(logging.ERROR, 'misc'):
|
||||
with pytest.raises(Exception):
|
||||
self.func_predicate_false()
|
||||
assert not caplog.records()
|
||||
|
||||
|
||||
class Obj:
|
||||
|
||||
"""Test object for test_get_repr()."""
|
||||
|
||||
pass
|
||||
|
||||
|
||||
@pytest.mark.parametrize('constructor, attrs, expected', [
|
||||
(False, {}, '<test_utils.Obj>'),
|
||||
(False, {'foo': None}, '<test_utils.Obj foo=None>'),
|
||||
(False, {'foo': "b'ar", 'baz': 2}, '<test_utils.Obj baz=2 foo="b\'ar">'),
|
||||
(True, {}, 'test_utils.Obj()'),
|
||||
(True, {'foo': None}, 'test_utils.Obj(foo=None)'),
|
||||
(True, {'foo': "te'st", 'bar': 2}, 'test_utils.Obj(bar=2, foo="te\'st")'),
|
||||
])
|
||||
def test_get_repr(constructor, attrs, expected):
|
||||
"""Test get_repr()."""
|
||||
assert utils.get_repr(Obj(), constructor, **attrs) == expected
|
||||
|
||||
|
||||
class QualnameObj():
|
||||
|
||||
"""Test object for test_qualname."""
|
||||
|
||||
def func(self):
|
||||
"""Test method for test_qualname."""
|
||||
pass
|
||||
|
||||
|
||||
def qualname_func(_blah):
|
||||
"""Test function for test_qualname."""
|
||||
pass
|
||||
|
||||
|
||||
@pytest.mark.parametrize('obj, expected', [
|
||||
(QualnameObj(), '<unknown>'), # instance - unknown
|
||||
(QualnameObj, 'test_utils.QualnameObj'), # class
|
||||
(QualnameObj.func, 'test_utils.QualnameObj.func'), # unbound method
|
||||
(QualnameObj().func, 'test_utils.QualnameObj.func'), # bound method
|
||||
(qualname_func, 'test_utils.qualname_func'), # function
|
||||
(functools.partial(qualname_func, True), 'test_utils.qualname_func'),
|
||||
(qutebrowser, 'qutebrowser'), # module
|
||||
(qutebrowser.utils, 'qutebrowser.utils'), # submodule
|
||||
(utils, 'qutebrowser.utils.utils'), # submodule (from-import)
|
||||
])
|
||||
def test_qualname(obj, expected):
|
||||
assert utils.qualname(obj) == expected
|
||||
|
||||
|
||||
class TestIsEnum:
|
||||
|
||||
"""Test is_enum."""
|
||||
@ -412,19 +792,12 @@ class TestRaises:
|
||||
utils.raises(ValueError, self.do_raise)
|
||||
|
||||
|
||||
class TestForceEncoding:
|
||||
|
||||
"""Test force_encoding."""
|
||||
|
||||
TESTS = [
|
||||
@pytest.mark.parametrize('inp, enc, expected', [
|
||||
('hello world', 'ascii', 'hello world'),
|
||||
('hellö wörld', 'utf-8', 'hellö wörld'),
|
||||
('hellö wörld', 'ascii', 'hell? w?rld'),
|
||||
]
|
||||
|
||||
@pytest.mark.parametrize('inp, enc, expected', TESTS)
|
||||
def test_fitting_ascii(self, inp, enc, expected):
|
||||
"""Test force_encoding will yield expected text."""
|
||||
])
|
||||
def test_force_encoding(inp, enc, expected):
|
||||
assert utils.force_encoding(inp, enc) == expected
|
||||
|
||||
|
||||
@ -437,44 +810,23 @@ class TestNewestSlice:
|
||||
with pytest.raises(ValueError):
|
||||
utils.newest_slice([], -2)
|
||||
|
||||
def test_count_minus_one(self):
|
||||
"""Test with a count of -1 (all elements)."""
|
||||
items = range(20)
|
||||
sliced = utils.newest_slice(items, -1)
|
||||
assert list(sliced) == list(items)
|
||||
|
||||
def test_count_zero(self):
|
||||
"""Test with a count of 0 (no elements)."""
|
||||
items = range(20)
|
||||
sliced = utils.newest_slice(items, 0)
|
||||
assert list(sliced) == []
|
||||
|
||||
def test_count_much_smaller(self):
|
||||
"""Test with a count which is much smaller than the iterable."""
|
||||
items = range(20)
|
||||
sliced = utils.newest_slice(items, 5)
|
||||
assert list(sliced) == [15, 16, 17, 18, 19]
|
||||
|
||||
def test_count_smaller(self):
|
||||
"""Test with a count which is exactly one smaller."""
|
||||
items = range(5)
|
||||
sliced = utils.newest_slice(items, 4)
|
||||
assert list(sliced) == [1, 2, 3, 4]
|
||||
|
||||
def test_count_equal(self):
|
||||
"""Test with a count which is just as large as the iterable."""
|
||||
items = range(5)
|
||||
sliced = utils.newest_slice(items, 5)
|
||||
assert list(sliced) == list(items)
|
||||
|
||||
def test_count_bigger(self):
|
||||
"""Test with a count which is one bigger than the iterable."""
|
||||
items = range(5)
|
||||
sliced = utils.newest_slice(items, 6)
|
||||
assert list(sliced) == list(items)
|
||||
|
||||
def test_count_much_bigger(self):
|
||||
"""Test with a count which is much bigger than the iterable."""
|
||||
items = range(5)
|
||||
sliced = utils.newest_slice(items, 50)
|
||||
assert list(sliced) == list(items)
|
||||
@pytest.mark.parametrize('items, count, expected', [
|
||||
# Count of -1 (all elements).
|
||||
(range(20), -1, range(20)),
|
||||
# Count of 0 (no elements).
|
||||
(range(20), 0, []),
|
||||
# Count which is much smaller than the iterable.
|
||||
(range(20), 5, [15, 16, 17, 18, 19]),
|
||||
# Count which is exactly one smaller."""
|
||||
(range(5), 4, [1, 2, 3, 4]),
|
||||
# Count which is just as large as the iterable."""
|
||||
(range(5), 5, range(5)),
|
||||
# Count which is one bigger than the iterable.
|
||||
(range(5), 6, range(5)),
|
||||
# Count which is much bigger than the iterable.
|
||||
(range(5), 50, range(5)),
|
||||
])
|
||||
def test_good(self, items, count, expected):
|
||||
"""Test slices which shouldn't raise an exception."""
|
||||
sliced = utils.newest_slice(items, count)
|
||||
assert list(sliced) == list(expected)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user