UltiSnips/test/vim_interface.py
Holger Rapp 539c557680
Move travis testing into docker for better consistency. (#950)
This now only tests python2 on Vim 7.4, 8.0 and git. No Neovim (that has been broken for a long time anyways) and no longer any python3 testing. But hey, we have green tests again!
2018-04-01 00:56:34 +02:00

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# encoding: utf-8
import os
import re
import shutil
import subprocess
import tempfile
import textwrap
import time
from test.constant import (ARR_D, ARR_L, ARR_R, ARR_U, BS, ESC, PYTHON3,
SEQUENCES)
def wait_until_file_exists(file_path, times=None, interval=0.01):
while times is None or times:
if os.path.exists(file_path):
return True
time.sleep(interval)
if times is not None:
times -= 1
return False
def read_text_file(filename):
"""Reads the contens of a text file."""
if PYTHON3:
return open(filename, 'r', encoding='utf-8').read()
else:
return open(filename, 'r').read()
def is_process_running(pid):
"""Returns true if a process with pid is running, false otherwise."""
# from
# http://stackoverflow.com/questions/568271/how-to-check-if-there-exists-a-process-with-a-given-pid
try:
os.kill(pid, 0)
except OSError:
return False
else:
return True
def silent_call(cmd):
"""Calls 'cmd' and returns the exit value."""
return subprocess.call(cmd, stderr=subprocess.PIPE, stdout=subprocess.PIPE)
def create_directory(dirname):
"""Creates 'dirname' and its parents if it does not exist."""
try:
os.makedirs(dirname)
except OSError:
pass
class TempFileManager(object):
def __init__(self, name=''):
self._temp_dir = tempfile.mkdtemp(prefix='UltiSnipsTest_' + name)
def name_temp(self, file_path):
return os.path.join(self._temp_dir, file_path)
def write_temp(self, file_path, content):
abs_path = self.name_temp(file_path)
create_directory(os.path.dirname(abs_path))
if PYTHON3:
with open(abs_path, 'w', encoding='utf-8') as f:
f.write(content)
else:
with open(abs_path, 'w') as f:
f.write(content)
return abs_path
def unique_name_temp(self, suffix='', prefix=''):
file_handler, abspath = tempfile.mkstemp(
suffix, prefix, self._temp_dir)
os.close(file_handler)
os.remove(abspath)
return abspath
def clear_temp(self):
shutil.rmtree(self._temp_dir)
create_directory(self._temp_dir)
class VimInterface(TempFileManager):
def __init__(self, vim_executable, name):
TempFileManager.__init__(self, name)
self._vim_executable = vim_executable
self._version = None
@property
def vim_executable(self):
return self._vim_executable
def has_version(self, major, minor, patchlevel):
if self._version is None:
output = subprocess.check_output([
self._vim_executable, "--version"
])
_major = 0
_minor = 0
_patch = 0
for line in output.decode('utf-8').split("\n"):
if line.startswith("VIM - Vi IMproved"):
_major, _minor = map(int, line.split()[4].split('.'))
if line.startswith("Included patches:"):
_patch = int(line.split('-')[1])
self._version = (_major, _minor, _patch)
return self._version >= (major, minor, patchlevel)
def get_buffer_data(self):
buffer_path = self.unique_name_temp(prefix='buffer_')
self.send_to_vim(ESC + ':w! %s\n' % buffer_path)
if wait_until_file_exists(buffer_path, 50):
return read_text_file(buffer_path)[:-1]
def send_to_terminal(self, s):
"""Types 's' into the terminal."""
raise NotImplementedError()
def send_to_vim(self, s):
"""Types 's' into the vim instance under test."""
raise NotImplementedError()
def launch(self, config=[]):
"""Returns the python version in Vim as a string, e.g. '2.7'"""
pid_file = self.name_temp('vim.pid')
done_file = self.name_temp('loading_done')
if os.path.exists(done_file):
os.remove(done_file)
post_config = []
post_config.append('%s << EOF' % ('py3' if PYTHON3 else 'py'))
post_config.append('import vim, sys')
post_config.append(
"with open('%s', 'w') as pid_file: pid_file.write(vim.eval('getpid()'))" %
pid_file)
post_config.append("with open('%s', 'w') as done_file:" % done_file)
post_config.append(" done_file.write('%i.%i.%i' % sys.version_info[:3])")
post_config.append('EOF')
config_path = self.write_temp('vim_config.vim',
textwrap.dedent(os.linesep.join(config + post_config) + '\n'))
# Note the space to exclude it from shell history. Also we always set
# NVIM_LISTEN_ADDRESS, even when running vanilla Vim, because it will
# just not care.
self.send_to_terminal(""" NVIM_LISTEN_ADDRESS=/tmp/nvim %s -u %s\r\n""" % (
self._vim_executable, config_path))
wait_until_file_exists(done_file)
self._vim_pid = int(read_text_file(pid_file))
return read_text_file(done_file).strip()
def leave_with_wait(self):
self.send_to_vim(3 * ESC + ':qa!\n')
while is_process_running(self._vim_pid):
time.sleep(.2)
class VimInterfaceTmux(VimInterface):
def __init__(self, vim_executable, session):
VimInterface.__init__(self, vim_executable, 'Tmux')
self.session = session
self._check_version()
def _send(self, s):
# I did not find any documentation on what needs escaping when sending
# to tmux, but it seems like this is all that is needed for now.
s = s.replace(';', r'\;')
if len(s) == 1:
silent_call(['tmux', 'send-keys', '-t', self.session, hex(ord(s))])
else:
silent_call(['tmux', 'send-keys', '-t', self.session, '-l', s])
def send_to_terminal(self, s):
return self._send(s)
def send_to_vim(self, s):
return self._send(s)
def _check_version(self):
stdout, _ = subprocess.Popen(['tmux', '-V'],
stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()
if PYTHON3:
stdout = stdout.decode('utf-8')
m = re.match(r"tmux (\d+).(\d+)", stdout)
if not m or not (int(m.group(1)), int(m.group(2))) >= (1, 8):
raise RuntimeError(
'Need at least tmux 1.8, you have %s.' %
stdout.strip())
class VimInterfaceTmuxNeovim(VimInterfaceTmux):
def __init__(self, vim_executable, session):
VimInterfaceTmux.__init__(self, vim_executable, session)
self._nvim = None
def send_to_vim(self, s):
if s == ARR_L:
s = "<Left>"
elif s == ARR_R:
s = "<Right>"
elif s == ARR_U:
s = "<Up>"
elif s == ARR_D:
s = "<Down>"
elif s == BS:
s = "<bs>"
elif s == ESC:
s = "<esc>"
elif s == "<":
s = "<lt>"
self._nvim.input(s)
def launch(self, config=[]):
import neovim
rv = VimInterfaceTmux.launch(self, config)
self._nvim = neovim.attach('socket', path='/tmp/nvim')
return rv
class VimInterfaceWindows(VimInterface):
BRACES = re.compile('([}{])')
WIN_ESCAPES = ['+', '^', '%', '~', '[', ']', '<', '>', '(', ')']
WIN_REPLACES = [
(BS, '{BS}'),
(ARR_L, '{LEFT}'),
(ARR_R, '{RIGHT}'),
(ARR_U, '{UP}'),
(ARR_D, '{DOWN}'),
('\t', '{TAB}'),
('\n', '~'),
(ESC, '{ESC}'),
# On my system ` waits for a second keystroke, so `+SPACE = "`". On
# most systems, `+Space = "` ". I work around this, by sending the host
# ` as `+_+BS. Awkward, but the only way I found to get this working.
('`', '`_{BS}'),
('´', '´_{BS}'),
('{^}', '{^}_{BS}'),
]
def __init__(self):
# import windows specific modules
import win32com.client
import win32gui
self.win32gui = win32gui
self.shell = win32com.client.Dispatch('WScript.Shell')
def is_focused(self, title=None):
cur_title = self.win32gui.GetWindowText(
self.win32gui.GetForegroundWindow())
if (title or '- GVIM') in cur_title:
return True
return False
def focus(self, title=None):
if not self.shell.AppActivate(title or '- GVIM'):
raise Exception('Failed to switch to GVim window')
time.sleep(1)
def convert_keys(self, keys):
keys = self.BRACES.sub(r"{\1}", keys)
for k in self.WIN_ESCAPES:
keys = keys.replace(k, '{%s}' % k)
for f, r in self.WIN_REPLACES:
keys = keys.replace(f, r)
return keys
def send(self, keys):
keys = self.convert_keys(keys)
if not self.is_focused():
time.sleep(2)
self.focus()
if not self.is_focused():
# This is the only way I can find to stop test execution
raise KeyboardInterrupt('Failed to focus GVIM')
self.shell.SendKeys(keys)