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# -*- coding: utf-8 -*-
from __future__ import unicode_literals
import os
import platform
import tempfile
import sys
import time
import pexpect
import unittest
from . import PexpectTestCase
# the program cat(1) may display ^D\x08\x08 when \x04 (EOF, Ctrl-D) is sent
_CAT_EOF = '^D\x08\x08'
class UnicodeTests(PexpectTestCase.PexpectTestCase):
def test_expect_basic (self):
p = pexpect.spawnu('cat')
p.sendline('Hello')
p.sendline('there')
p.sendline('Mr. þython') # þ is more like th than p, but never mind
p.expect('Hello')
p.expect('there')
p.expect('Mr. þython')
p.sendeof ()
p.expect (pexpect.EOF)
def test_expect_exact_basic (self):
p = pexpect.spawnu('cat')
p.sendline('Hello')
p.sendline('there')
p.sendline('Mr. þython')
p.expect_exact('Hello')
p.expect_exact('there')
p.expect_exact('Mr. þython')
p.sendeof()
p.expect_exact (pexpect.EOF)
def test_expect_setecho_toggle(self):
'''This tests that echo may be toggled off.
'''
p = pexpect.spawnu('cat', timeout=5)
try:
self._expect_echo_toggle_off(p)
except IOError:
if sys.platform.lower().startswith('sunos'):
if hasattr(unittest, 'SkipTest'):
raise unittest.SkipTest("Not supported on this platform.")
return 'skip'
raise
self._expect_echo_toggle_on(p)
def test_expect_echo_exact (self):
'''Like test_expect_echo(), but using expect_exact().
'''
p = pexpect.spawnu('cat', timeout=5)
p.expect = p.expect_exact
self._expect_echo(p)
def test_expect_setecho_toggle_exact(self):
p = pexpect.spawnu('cat', timeout=5)
p.expect = p.expect_exact
try:
self._expect_echo_toggle_off(p)
except IOError:
if sys.platform.lower().startswith('sunos'):
if hasattr(unittest, 'SkipTest'):
raise unittest.SkipTest("Not supported on this platform.")
return 'skip'
raise
self._expect_echo_toggle_on(p)
def _expect_echo (self, p):
p.sendline('1234') # Should see this twice (once from tty echo and again from cat).
index = p.expect (['1234', 'abcdé', 'wxyz', pexpect.EOF, pexpect.TIMEOUT])
assert index == 0, (index, p.before)
index = p.expect (['1234', 'abcdé', 'wxyz', pexpect.EOF])
assert index == 0, index
def _expect_echo_toggle_off(self, p):
p.setecho(0) # Turn off tty echo
p.waitnoecho()
p.sendline('abcdé') # Now, should only see this once.
p.sendline('wxyz') # Should also be only once.
index = p.expect ([pexpect.EOF,pexpect.TIMEOUT, 'abcdé', 'wxyz', '1234'])
assert index == 2, index
index = p.expect ([pexpect.EOF, 'abcdé', 'wxyz', '7890'])
assert index == 2, index
def _expect_echo_toggle_on(self, p):
p.setecho(1) # Turn on tty echo
time.sleep(0.2) # there is no waitecho() !
p.sendline('7890') # Should see this twice.
index = p.expect ([pexpect.EOF, 'abcdé', 'wxyz', '7890'])
assert index == 3, index
index = p.expect ([pexpect.EOF, 'abcdé', 'wxyz', '7890'])
assert index == 3, index
p.sendeof()
def test_log_unicode(self):
msg = "abcΩ÷"
filename_send = tempfile.mktemp()
filename_read = tempfile.mktemp()
p = pexpect.spawnu('cat')
if platform.python_version_tuple() < ('3', '0', '0'):
import codecs
def open(fname, mode, **kwargs):
if 'newline' in kwargs:
del kwargs['newline']
return codecs.open(fname, mode, **kwargs)
else:
import io
open = io.open
p.logfile_send = open(filename_send, 'w', encoding='utf-8')
p.logfile_read = open(filename_read, 'w', encoding='utf-8')
p.sendline(msg)
p.sendeof()
p.expect(pexpect.EOF)
p.close()
p.logfile_send.close()
p.logfile_read.close()
# ensure the 'send' log is correct,
with open(filename_send, 'r', encoding='utf-8') as f:
self.assertEqual(f.read(), msg + '\n\x04')
os.unlink(filename_send)
# ensure the 'read' log is correct,
with open(filename_read, 'r', encoding='utf-8', newline='') as f:
output = f.read().replace(_CAT_EOF, '')
self.assertEqual(output, (msg + '\r\n')*2 )
os.unlink(filename_read)
def test_spawn_expect_ascii_unicode(self):
# A bytes-based spawn should be able to handle ASCII-only unicode, for
# backwards compatibility.
p = pexpect.spawn('cat')
p.sendline('Camelot')
p.expect('Camelot')
p.sendline('Aargh')
p.sendline('Aårgh')
p.expect_exact('Aargh')
p.sendeof()
p.expect(pexpect.EOF)
def test_spawn_send_unicode(self):
# A bytes-based spawn should be able to send arbitrary unicode
p = pexpect.spawn('cat')
p.sendline('3½')
p.sendeof()
p.expect(pexpect.EOF)
def test_spawn_utf8_incomplete(self):
# This test case ensures correct incremental decoding, which
# otherwise fails when the stream inspected by os.read()
# does not align exactly at a utf-8 multibyte boundary:
# UnicodeDecodeError: 'utf8' codec can't decode byte 0xe2 in
# position 0: unexpected end of data
p = pexpect.spawnu('cat', maxread=1)
p.sendline('▁▂▃▄▅▆▇█')
p.sendeof()
p.expect('▁▂▃▄▅▆▇█')
def test_readline_bin_echo(self):
# Test using readline() with spawnu objects. pexpect 3.2 had threw
# a TypeError when concatenating a bytestring to a unicode type.
# given,
child = pexpect.spawnu('echo', ['input', ])
# exercise,
assert child.readline() == 'input' + child.crlf
def test_unicode_argv(self):
""" Ensure a program can be executed with unicode arguments. """
p = pexpect.spawn(u'echo ǝpoɔıun', timeout=5, encoding='utf8')
p.expect(u'ǝpoɔıun')
p.expect(pexpect.EOF)
assert not p.isalive()
assert p.exitstatus == 0
if __name__ == '__main__':
unittest.main()
suite = unittest.TestLoader().loadTestsFromTestCase(UnicodeTests)
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