qutebrowser/tests/unit/config/test_configfiles.py
Florian Bruhin 6aed6bca93 Make loading autoconfig.yml opt-in when a config.py exists
This lets the user control the precedence those files should have, and also
simplifies the code quite a bit.

Fixes #2975
2017-09-25 21:24:12 +02:00

508 lines
17 KiB
Python

# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
# Copyright 2017 Florian Bruhin (The Compiler) <mail@qutebrowser.org>
# 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 qutebrowser.config.configfiles."""
import os
import sys
import pytest
from qutebrowser.config import config, configfiles, configexc, configdata
from qutebrowser.utils import utils
from PyQt5.QtCore import QSettings
@pytest.fixture(autouse=True)
def configdata_init():
"""Initialize configdata if needed."""
if configdata.DATA is None:
configdata.init()
@pytest.mark.parametrize('old_data, insert, new_data', [
(None, False, '[general]\n\n[geometry]\n\n'),
('[general]\nfooled = true', False, '[general]\n\n[geometry]\n\n'),
('[general]\nfoobar = 42', False,
'[general]\nfoobar = 42\n\n[geometry]\n\n'),
(None, True, '[general]\nnewval = 23\n\n[geometry]\n\n'),
])
def test_state_config(fake_save_manager, data_tmpdir,
old_data, insert, new_data):
statefile = data_tmpdir / 'state'
if old_data is not None:
statefile.write_text(old_data, 'utf-8')
state = configfiles.StateConfig()
if insert:
state['general']['newval'] = '23'
# WORKAROUND for https://github.com/PyCQA/pylint/issues/574
if 'foobar' in (old_data or ''): # pylint: disable=superfluous-parens
assert state['general']['foobar'] == '42'
state._save()
assert statefile.read_text('utf-8') == new_data
class TestYaml:
pytestmark = pytest.mark.usefixtures('fake_save_manager')
@pytest.mark.parametrize('old_config', [
None,
'global:\n colors.hints.fg: magenta',
])
@pytest.mark.parametrize('insert', [True, False])
def test_yaml_config(self, config_tmpdir, old_config, insert):
autoconfig = config_tmpdir / 'autoconfig.yml'
if old_config is not None:
autoconfig.write_text(old_config, 'utf-8')
yaml = configfiles.YamlConfig()
yaml.load()
if insert:
yaml['tabs.show'] = 'never'
yaml._save()
if not insert and old_config is None:
lines = []
else:
text = autoconfig.read_text('utf-8')
lines = text.splitlines()
if insert:
assert lines[0].startswith('# DO NOT edit this file by hand,')
assert 'config_version: {}'.format(yaml.VERSION) in lines
assert 'global:' in lines
print(lines)
# WORKAROUND for https://github.com/PyCQA/pylint/issues/574
# pylint: disable=superfluous-parens
if 'magenta' in (old_config or ''):
assert ' colors.hints.fg: magenta' in lines
if insert:
assert ' tabs.show: never' in lines
def test_unknown_key(self, config_tmpdir):
"""An unknown setting should be deleted."""
autoconfig = config_tmpdir / 'autoconfig.yml'
autoconfig.write_text('global:\n hello: world', encoding='utf-8')
yaml = configfiles.YamlConfig()
yaml.load()
yaml._save()
lines = autoconfig.read_text('utf-8').splitlines()
assert ' hello:' not in lines
@pytest.mark.parametrize('old_config', [
None,
'global:\n colors.hints.fg: magenta',
])
@pytest.mark.parametrize('key, value', [
('colors.hints.fg', 'green'),
('colors.hints.bg', None),
('confirm_quit', True),
('confirm_quit', False),
])
def test_changed(self, config_tmpdir, old_config, key, value):
autoconfig = config_tmpdir / 'autoconfig.yml'
if old_config is not None:
autoconfig.write_text(old_config, 'utf-8')
yaml = configfiles.YamlConfig()
yaml.load()
yaml[key] = value
assert key in yaml
assert yaml[key] == value
yaml._save()
yaml = configfiles.YamlConfig()
yaml.load()
assert key in yaml
assert yaml[key] == value
@pytest.mark.parametrize('old_config', [
None,
'global:\n colors.hints.fg: magenta',
])
def test_unchanged(self, config_tmpdir, old_config):
autoconfig = config_tmpdir / 'autoconfig.yml'
mtime = None
if old_config is not None:
autoconfig.write_text(old_config, 'utf-8')
mtime = autoconfig.stat().mtime
yaml = configfiles.YamlConfig()
yaml.load()
yaml._save()
if old_config is None:
assert not autoconfig.exists()
else:
assert autoconfig.stat().mtime == mtime
@pytest.mark.parametrize('line, text, exception', [
('%', 'While parsing', 'while scanning a directive'),
('global: 42', 'While loading data', "'global' object is not a dict"),
('foo: 42', 'While loading data',
"Toplevel object does not contain 'global' key"),
('42', 'While loading data', "Toplevel object is not a dict"),
])
def test_invalid(self, config_tmpdir, line, text, exception):
autoconfig = config_tmpdir / 'autoconfig.yml'
autoconfig.write_text(line, 'utf-8', ensure=True)
yaml = configfiles.YamlConfig()
with pytest.raises(configexc.ConfigFileErrors) as excinfo:
yaml.load()
assert len(excinfo.value.errors) == 1
error = excinfo.value.errors[0]
assert error.text == text
assert str(error.exception).splitlines()[0] == exception
assert error.traceback is None
def test_oserror(self, config_tmpdir):
autoconfig = config_tmpdir / 'autoconfig.yml'
autoconfig.ensure()
autoconfig.chmod(0)
if os.access(str(autoconfig), os.R_OK):
# Docker container or similar
pytest.skip("File was still readable")
yaml = configfiles.YamlConfig()
with pytest.raises(configexc.ConfigFileErrors) as excinfo:
yaml.load()
assert len(excinfo.value.errors) == 1
error = excinfo.value.errors[0]
assert error.text == "While reading"
assert isinstance(error.exception, OSError)
assert error.traceback is None
class ConfPy:
"""Helper class to get a confpy fixture."""
def __init__(self, tmpdir, filename: str = "config.py"):
self._file = tmpdir / filename
self.filename = str(self._file)
def write(self, *lines):
text = '\n'.join(lines)
self._file.write_text(text, 'utf-8', ensure=True)
def read(self, error=False):
"""Read the config.py via configfiles and check for errors."""
if error:
with pytest.raises(configexc.ConfigFileErrors) as excinfo:
configfiles.read_config_py(self.filename)
errors = excinfo.value.errors
assert len(errors) == 1
return errors[0]
else:
configfiles.read_config_py(self.filename, raising=True)
return None
def write_qbmodule(self):
self.write('import qbmodule',
'qbmodule.run(config)')
class TestConfigPyModules:
pytestmark = pytest.mark.usefixtures('config_stub', 'key_config_stub')
@pytest.fixture
def confpy(self, tmpdir, config_tmpdir, data_tmpdir):
return ConfPy(tmpdir)
@pytest.fixture
def qbmodulepy(self, tmpdir):
return ConfPy(tmpdir, filename="qbmodule.py")
@pytest.fixture(autouse=True)
def restore_sys_path(self):
old_path = sys.path.copy()
yield
sys.path = old_path
def test_bind_in_module(self, confpy, qbmodulepy, tmpdir):
qbmodulepy.write('def run(config):',
' config.bind(",a", "message-info foo", mode="normal")')
confpy.write_qbmodule()
confpy.read()
expected = {'normal': {',a': 'message-info foo'}}
assert config.instance._values['bindings.commands'] == expected
assert "qbmodule" not in sys.modules.keys()
assert tmpdir not in sys.path
def test_restore_sys_on_err(self, confpy, qbmodulepy, tmpdir):
confpy.write_qbmodule()
qbmodulepy.write('def run(config):',
' 1/0')
error = confpy.read(error=True)
assert error.text == "Unhandled exception"
assert isinstance(error.exception, ZeroDivisionError)
assert "qbmodule" not in sys.modules.keys()
assert tmpdir not in sys.path
def test_fail_on_nonexistent_module(self, confpy, qbmodulepy, tmpdir):
qbmodulepy.write('def run(config):',
' pass')
confpy.write('import foobar',
'foobar.run(config)')
error = confpy.read(error=True)
assert error.text == "Unhandled exception"
assert isinstance(error.exception, ImportError)
tblines = error.traceback.strip().splitlines()
assert tblines[0] == "Traceback (most recent call last):"
assert tblines[-1].endswith("Error: No module named 'foobar'")
def test_no_double_if_path_exists(self, confpy, qbmodulepy, tmpdir):
sys.path.insert(0, tmpdir)
confpy.write('import sys',
'if sys.path[0] in sys.path[1:]:',
' raise Exception("Path not expected")')
confpy.read()
assert sys.path.count(tmpdir) == 1
class TestConfigPy:
"""Tests for ConfigAPI and read_config_py()."""
pytestmark = pytest.mark.usefixtures('config_stub', 'key_config_stub')
@pytest.fixture
def confpy(self, tmpdir, config_tmpdir, data_tmpdir):
return ConfPy(tmpdir)
def test_assertions(self, confpy):
"""Make sure assertions in config.py work for these tests."""
confpy.write('assert False')
with pytest.raises(AssertionError):
confpy.read() # no errors=True so it gets raised
@pytest.mark.parametrize('what', ['configdir', 'datadir'])
def test_getting_dirs(self, confpy, what):
confpy.write('import pathlib',
'directory = config.{}'.format(what),
'assert isinstance(directory, pathlib.Path)',
'assert directory.exists()')
confpy.read()
@pytest.mark.parametrize('line', [
'c.colors.hints.bg = "red"',
'config.set("colors.hints.bg", "red")',
])
def test_set(self, confpy, line):
confpy.write(line)
confpy.read()
assert config.instance._values['colors.hints.bg'] == 'red'
@pytest.mark.parametrize('set_first', [True, False])
@pytest.mark.parametrize('get_line', [
'c.colors.hints.fg',
'config.get("colors.hints.fg")',
])
def test_get(self, confpy, set_first, get_line):
"""Test whether getting options works correctly."""
# pylint: disable=bad-config-option
config.val.colors.hints.fg = 'green'
if set_first:
confpy.write('c.colors.hints.fg = "red"',
'assert {} == "red"'.format(get_line))
else:
confpy.write('assert {} == "green"'.format(get_line))
confpy.read()
@pytest.mark.parametrize('line, mode', [
('config.bind(",a", "message-info foo")', 'normal'),
('config.bind(",a", "message-info foo", "prompt")', 'prompt'),
])
def test_bind(self, confpy, line, mode):
confpy.write(line)
confpy.read()
expected = {mode: {',a': 'message-info foo'}}
assert config.instance._values['bindings.commands'] == expected
def test_bind_freshly_defined_alias(self, confpy):
"""Make sure we can bind to a new alias.
https://github.com/qutebrowser/qutebrowser/issues/3001
"""
confpy.write("c.aliases['foo'] = 'message-info foo'",
"config.bind(',f', 'foo')")
confpy.read()
def test_bind_duplicate_key(self, confpy):
"""Make sure we get a nice error message on duplicate key bindings."""
confpy.write("config.bind('H', 'message-info back')")
error = confpy.read(error=True)
expected = "Duplicate key H - use force=True to override!"
assert str(error.exception) == expected
@pytest.mark.parametrize('line, key, mode', [
('config.unbind("o")', 'o', 'normal'),
('config.unbind("y", mode="prompt")', 'y', 'prompt'),
])
def test_unbind(self, confpy, line, key, mode):
confpy.write(line)
confpy.read()
expected = {mode: {key: None}}
assert config.instance._values['bindings.commands'] == expected
def test_mutating(self, confpy):
confpy.write('c.aliases["foo"] = "message-info foo"',
'c.aliases["bar"] = "message-info bar"')
confpy.read()
assert config.instance._values['aliases']['foo'] == 'message-info foo'
assert config.instance._values['aliases']['bar'] == 'message-info bar'
def test_oserror(self, tmpdir, data_tmpdir, config_tmpdir):
with pytest.raises(configexc.ConfigFileErrors) as excinfo:
configfiles.read_config_py(str(tmpdir / 'foo'))
assert len(excinfo.value.errors) == 1
error = excinfo.value.errors[0]
assert isinstance(error.exception, OSError)
assert error.text == "Error while reading foo"
assert error.traceback is None
def test_nul_bytes(self, confpy):
confpy.write('\0')
with pytest.raises(configexc.ConfigFileErrors) as excinfo:
configfiles.read_config_py(confpy.filename)
assert len(excinfo.value.errors) == 1
error = excinfo.value.errors[0]
assert isinstance(error.exception, ValueError)
assert error.text == "Error while compiling"
exception_text = 'source code string cannot contain null bytes'
assert str(error.exception) == exception_text
assert error.traceback is None
def test_syntax_error(self, confpy):
confpy.write('+')
with pytest.raises(configexc.ConfigFileErrors) as excinfo:
configfiles.read_config_py(confpy.filename)
assert len(excinfo.value.errors) == 1
error = excinfo.value.errors[0]
assert isinstance(error.exception, SyntaxError)
assert error.text == "Syntax Error"
exception_text = 'invalid syntax (config.py, line 1)'
assert str(error.exception) == exception_text
tblines = error.traceback.strip().splitlines()
assert tblines[0] == "Traceback (most recent call last):"
assert tblines[-1] == "SyntaxError: invalid syntax"
assert " +" in tblines
assert " ^" in tblines
def test_unhandled_exception(self, confpy):
confpy.write("1/0")
error = confpy.read(error=True)
assert error.text == "Unhandled exception"
assert isinstance(error.exception, ZeroDivisionError)
tblines = error.traceback.strip().splitlines()
assert tblines[0] == "Traceback (most recent call last):"
assert tblines[-1] == "ZeroDivisionError: division by zero"
assert " 1/0" in tblines
def test_config_val(self, confpy):
"""Using config.val should not work in config.py files."""
confpy.write("config.val.colors.hints.bg = 'red'")
error = confpy.read(error=True)
assert error.text == "Unhandled exception"
assert isinstance(error.exception, AttributeError)
message = "'ConfigAPI' object has no attribute 'val'"
assert str(error.exception) == message
@pytest.mark.parametrize('line', ["c.foo = 42", "config.set('foo', 42)"])
def test_config_error(self, confpy, line):
confpy.write(line)
error = confpy.read(error=True)
assert error.text == "While setting 'foo'"
assert isinstance(error.exception, configexc.NoOptionError)
assert str(error.exception) == "No option 'foo'"
assert error.traceback is None
def test_multiple_errors(self, confpy):
confpy.write("c.foo = 42", "config.set('foo', 42)", "1/0")
with pytest.raises(configexc.ConfigFileErrors) as excinfo:
configfiles.read_config_py(confpy.filename)
errors = excinfo.value.errors
assert len(errors) == 3
for error in errors[:2]:
assert error.text == "While setting 'foo'"
assert isinstance(error.exception, configexc.NoOptionError)
assert str(error.exception) == "No option 'foo'"
assert error.traceback is None
error = errors[2]
assert error.text == "Unhandled exception"
assert isinstance(error.exception, ZeroDivisionError)
assert error.traceback is not None
@pytest.fixture
def init_patch(qapp, fake_save_manager, config_tmpdir, data_tmpdir,
config_stub, monkeypatch):
monkeypatch.setattr(configfiles, 'state', None)
yield
def test_init(init_patch, config_tmpdir):
configfiles.init()
# Make sure qsettings land in a subdir
if utils.is_linux:
settings = QSettings()
settings.setValue("hello", "world")
settings.sync()
assert (config_tmpdir / 'qsettings').exists()
# Lots of other stuff is tested in test_config.py in test_init