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# encoding: utf-8

"""

Tests for platutils.py

"""

#-----------------------------------------------------------------------------

# Copyright (C) 2008-2011 The IPython Development Team

#

# Distributed under the terms of the BSD License. The full license is in

# the file COPYING, distributed as part of this software.

#-----------------------------------------------------------------------------

#-----------------------------------------------------------------------------

# Imports

#-----------------------------------------------------------------------------

import sys

import os

from unittest import TestCase

import nose.tools as nt

from IPython.utils.process import (find_cmd, FindCmdError, arg_split,

system, getoutput, getoutputerror,

get_output_error_code)

from IPython.testing import decorators as dec

from IPython.testing import tools as tt

python = os.path.basename(sys.executable)

#-----------------------------------------------------------------------------

# Tests

#-----------------------------------------------------------------------------

@dec.skip_win32

def test_find_cmd_ls():

"""Make sure we can find the full path to ls."""

path = find_cmd('ls')

nt.assert_true(path.endswith('ls'))

def has_pywin32():

try:

import win32api

except ImportError:

return False

return True

@dec.onlyif(has_pywin32, "This test requires win32api to run")

def test_find_cmd_pythonw():

"""Try to find pythonw on Windows."""

path = find_cmd('pythonw')

nt.assert_true(path.endswith('pythonw.exe'))

@dec.onlyif(lambda : sys.platform != 'win32' or has_pywin32(),

"This test runs on posix or in win32 with win32api installed")

def test_find_cmd_fail():

"""Make sure that FindCmdError is raised if we can't find the cmd."""

nt.assert_raises(FindCmdError,find_cmd,'asdfasdf')

@dec.skip_win32

def test_arg_split():

"""Ensure that argument lines are correctly split like in a shell."""

tests = [['hi', ['hi']],

[u'hi', [u'hi']],

['hello there', ['hello', 'there']],

# \u01ce == \N{LATIN SMALL LETTER A WITH CARON}

# Do not use \N because the tests crash with syntax error in

# some cases, for example windows python2.6.

[u'h\u01cello', [u'h\u01cello']],

['something "with quotes"', ['something', '"with quotes"']],

]

for argstr, argv in tests:

nt.assert_equal(arg_split(argstr), argv)

@dec.skip_if_not_win32

def test_arg_split_win32():

"""Ensure that argument lines are correctly split like in a shell."""

tests = [['hi', ['hi']],

[u'hi', [u'hi']],

['hello there', ['hello', 'there']],

[u'h\u01cello', [u'h\u01cello']],

['something "with quotes"', ['something', 'with quotes']],

]

for argstr, argv in tests:

nt.assert_equal(arg_split(argstr), argv)

class SubProcessTestCase(TestCase, tt.TempFileMixin):

def setUp(self):

"""Make a valid python temp file."""

lines = ["from __future__ import print_function",

"import sys",

"print('on stdout', end='', file=sys.stdout)",

"print('on stderr', end='', file=sys.stderr)",

"sys.stdout.flush()",

"sys.stderr.flush()"]

self.mktmp('\n'.join(lines))

def test_system(self):

status = system('%s "%s"' % (python, self.fname))

self.assertEqual(status, 0)

def test_system_quotes(self):

status = system('%s -c "import sys"' % python)

self.assertEqual(status, 0)

def test_getoutput(self):

out = getoutput('%s "%s"' % (python, self.fname))

# we can't rely on the order the line buffered streams are flushed

try:

self.assertEqual(out, 'on stderron stdout')

except AssertionError:

self.assertEqual(out, 'on stdouton stderr')

def test_getoutput_quoted(self):

out = getoutput('%s -c "print (1)"' % python)

self.assertEqual(out.strip(), '1')

#Invalid quoting on windows

@dec.skip_win32

def test_getoutput_quoted2(self):

out = getoutput("%s -c 'print (1)'" % python)

self.assertEqual(out.strip(), '1')

out = getoutput("%s -c 'print (\"1\")'" % python)

self.assertEqual(out.strip(), '1')

def test_getoutput_error(self):

out, err = getoutputerror('%s "%s"' % (python, self.fname))

self.assertEqual(out, 'on stdout')

self.assertEqual(err, 'on stderr')

def test_get_output_error_code(self):

quiet_exit = '%s -c "import sys; sys.exit(1)"' % python

out, err, code = get_output_error_code(quiet_exit)

self.assertEqual(out, '')

self.assertEqual(err, '')

self.assertEqual(code, 1)

out, err, code = get_output_error_code('%s "%s"' % (python, self.fname))

self.assertEqual(out, 'on stdout')

self.assertEqual(err, 'on stderr')

self.assertEqual(code, 0)