xonsh/tests/test_environ.py
2017-01-31 12:51:26 +02:00

228 lines
6.5 KiB
Python

# -*- coding: utf-8 -*-
"""Tests the xonsh environment."""
from __future__ import unicode_literals, print_function
import os
import tempfile
import builtins
from tempfile import TemporaryDirectory
from xonsh.tools import ON_WINDOWS
import pytest
from xonsh.commands_cache import CommandsCache
from xonsh.environ import Env, load_static_config, locate_binary
from tools import skip_if_on_unix
def test_env_normal():
env = Env(VAR='wakka')
assert 'wakka' == env['VAR']
def test_env_contains():
env = Env(VAR='wakka')
assert 'VAR' in env
@pytest.mark.parametrize('path', [['/home/wakka'], ['wakka']])
def test_env_path_list(path):
env = Env(MYPATH=path)
assert path == env['MYPATH'].paths
@pytest.mark.parametrize('path', [
['/home/wakka' + os.pathsep + '/home/jawaka'],
['wakka' + os.pathsep + 'jawaka']
])
def test_env_path_str(path):
env = Env(MYPATH=path)
assert path == env['MYPATH'].paths
def test_env_detype():
env = Env(MYPATH=['wakka', 'jawaka'])
assert 'wakka' + os.pathsep + 'jawaka' == env.detype()['MYPATH']
@pytest.mark.parametrize('path1, path2',[
(['/home/wakka', '/home/jawaka'], '/home/woah'),
(['wakka', 'jawaka'], 'woah')
])
def test_env_detype_mutable_access_clear(path1, path2):
env = Env(MYPATH=path1)
assert path1[0] + os.pathsep + path1[1] == env.detype()['MYPATH']
env['MYPATH'][0] = path2
assert env._detyped is None
assert path2 + os.pathsep + path1[1] == env.detype()['MYPATH']
def test_env_detype_no_dict():
env = Env(YO={'hey': 42})
det = env.detype()
assert 'YO' not in det
def test_histcontrol_none():
env = Env(HISTCONTROL=None)
assert isinstance(env['HISTCONTROL'], set)
assert len(env['HISTCONTROL']) == 0
def test_HISTCONTROL_empty():
env = Env(HISTCONTROL='')
assert isinstance(env['HISTCONTROL'], set)
assert len(env['HISTCONTROL']) == 0
def test_histcontrol_ignoredups():
env = Env(HISTCONTROL='ignoredups')
assert isinstance(env['HISTCONTROL'], set)
assert len(env['HISTCONTROL']) == 1
assert ('ignoredups' in env['HISTCONTROL'])
assert ('ignoreerr' not in env['HISTCONTROL'])
def test_histcontrol_ignoreerr_ignoredups():
env = Env(HISTCONTROL='ignoreerr,ignoredups,ignoreerr')
assert len(env['HISTCONTROL']) == 2
assert ('ignoreerr' in env['HISTCONTROL'])
assert ('ignoredups' in env['HISTCONTROL'])
def test_swap():
env = Env(VAR='wakka')
assert env['VAR'] == 'wakka'
# positional arg
with env.swap({'VAR': 'foo'}):
assert env['VAR'] == 'foo'
# make sure the environment goes back outside the context manager
assert env['VAR'] == 'wakka'
# kwargs only
with env.swap(VAR1='foo', VAR2='bar'):
assert env['VAR1'] == 'foo'
assert env['VAR2'] == 'bar'
# positional and kwargs
with env.swap({'VAR3': 'baz'}, VAR1='foo', VAR2='bar'):
assert env['VAR1'] == 'foo'
assert env['VAR2'] == 'bar'
assert env['VAR3'] == 'baz'
# make sure the environment goes back outside the context manager
assert env['VAR'] == 'wakka'
assert 'VAR1' not in env
assert 'VAR2' not in env
assert 'VAR3' not in env
@pytest.mark.parametrize('s, exp, loaded',[
(b'{"best": "awash"}', {'best': 'awash'}, True), # works
(b'["best", "awash"]', {}, False), # fail
(b'{"best": "awash"', {}, False) # json fail
])
def test_load_static_config(s, exp, loaded, tmpdir, xonsh_builtins):
env = Env({'XONSH_SHOW_TRACEBACK': False})
xonsh_builtins.__xonsh_env__ = env
f = tmpdir.join('test_static_config')
f.write(s)
conf = load_static_config(env, str(f))
assert exp == conf
assert env['LOADED_CONFIG'] == loaded
@skip_if_on_unix
def test_locate_binary_on_windows(xonsh_builtins):
files = ('file1.exe', 'FILE2.BAT', 'file3.txt')
with TemporaryDirectory() as tmpdir:
for fname in files:
fpath = os.path.join(tmpdir, fname)
with open(fpath, 'w') as f:
f.write(fpath)
xonsh_builtins.__xonsh_env__.update({
'PATH': [tmpdir],
'PATHEXT': ['.COM', '.EXE', '.BAT'],
})
xonsh_builtins.__xonsh_commands_cache__ = CommandsCache()
assert locate_binary('file1') == os.path.join(tmpdir, 'file1.exe')
assert locate_binary('file1.exe') == os.path.join(tmpdir, 'file1.exe')
assert locate_binary('file2') == os.path.join(tmpdir, 'FILE2.BAT')
assert locate_binary('file2.bat') == os.path.join(tmpdir, 'FILE2.BAT')
assert locate_binary('file3') is None
def test_event_on_envvar_change(xonsh_builtins):
env = Env(TEST=0)
xonsh_builtins.__xonsh_env__ = env
share = []
# register
@xonsh_builtins.events.on_envvar_change
def handler(name, oldvalue, newvalue, **kwargs):
share.extend((name, oldvalue, newvalue))
# trigger
env['TEST'] = 1
assert share == ['TEST', 0, 1]
def test_event_on_envvar_new(xonsh_builtins):
env = Env()
xonsh_builtins.__xonsh_env__ = env
share = []
# register
@xonsh_builtins.events.on_envvar_new
def handler(name, value, **kwargs):
share.extend((name, value))
# trigger
env['TEST'] = 1
assert share == ['TEST', 1]
def test_event_on_envvar_change_from_none_value(xonsh_builtins):
env = Env(TEST=None)
xonsh_builtins.__xonsh_env__ = env
share = []
# register
@xonsh_builtins.events.on_envvar_change
def handler(name, oldvalue, newvalue, **kwargs):
share.extend((name, oldvalue, newvalue))
# trigger
env['TEST'] = 1
assert share == ['TEST', None, 1]
@pytest.mark.parametrize('val', [1, None, True, 'ok'])
def test_event_on_envvar_change_no_fire_when_value_is_same(val, xonsh_builtins):
env = Env(TEST=val)
xonsh_builtins.__xonsh_env__ = env
share = []
# register
@xonsh_builtins.events.on_envvar_change
def handler(name, oldvalue, newvalue, **kwargs):
share.extend((name, oldvalue, newvalue))
# trigger
env['TEST'] = val
assert share == []
def test_events_on_envvar_called_in_right_order(xonsh_builtins):
env = Env()
xonsh_builtins.__xonsh_env__ = env
share = []
# register
@xonsh_builtins.events.on_envvar_new
def handler(name, value, **kwargs):
share[:] = ['new']
@xonsh_builtins.events.on_envvar_change
def handler(name, oldvalue, newvalue, **kwargs):
share[:] = ['change']
# trigger new
env['TEST'] = 1
assert share == ['new']
# trigger change
env['TEST'] = 2
assert share == ['change']