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#!/usr/bin/env python
# coding: utf-8

from __future__ import unicode_literals

# Allow direct execution
import os
import sys
import unittest
sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))


from youtube_dl.compat import (
    compat_casefold,
    compat_getenv,
    compat_setenv,
    compat_etree_Element,
    compat_etree_fromstring,
    compat_expanduser,
    compat_shlex_split,
    compat_str,
    compat_struct_unpack,
    compat_urllib_parse_unquote,
    compat_urllib_parse_unquote_plus,
    compat_urllib_parse_urlencode,
    compat_urllib_request,
)


class TestCompat(unittest.TestCase):
    def test_compat_getenv(self):
        test_str = 'тест'
        compat_setenv('YOUTUBE_DL_COMPAT_GETENV', test_str)
        self.assertEqual(compat_getenv('YOUTUBE_DL_COMPAT_GETENV'), test_str)

    def test_compat_setenv(self):
        test_var = 'YOUTUBE_DL_COMPAT_SETENV'
        test_str = 'тест'
        compat_setenv(test_var, test_str)
        compat_getenv(test_var)
        self.assertEqual(compat_getenv(test_var), test_str)

    def test_compat_expanduser(self):
        old_home = os.environ.get('HOME')
        test_str = r'C:\Documents and Settings\тест\Application Data'
        compat_setenv('HOME', test_str)
        self.assertEqual(compat_expanduser('~'), test_str)
        compat_setenv('HOME', old_home or '')

    def test_all_present(self):
        import youtube_dl.compat
        all_names = sorted(
            youtube_dl.compat.__all__ + youtube_dl.compat.legacy)
        present_names = set(map(compat_str, filter(
            lambda c: '_' in c and not c.startswith('_'),
            dir(youtube_dl.compat)))) - set(['unicode_literals'])
        self.assertEqual(all_names, sorted(present_names))

    def test_compat_urllib_parse_unquote(self):
        self.assertEqual(compat_urllib_parse_unquote('abc%20def'), 'abc def')
        self.assertEqual(compat_urllib_parse_unquote('%7e/abc+def'), '~/abc+def')
        self.assertEqual(compat_urllib_parse_unquote(''), '')
        self.assertEqual(compat_urllib_parse_unquote('%'), '%')
        self.assertEqual(compat_urllib_parse_unquote('%%'), '%%')
        self.assertEqual(compat_urllib_parse_unquote('%%%'), '%%%')
        self.assertEqual(compat_urllib_parse_unquote('%2F'), '/')
        self.assertEqual(compat_urllib_parse_unquote('%2f'), '/')
        self.assertEqual(compat_urllib_parse_unquote('%E6%B4%A5%E6%B3%A2'), '津波')
        self.assertEqual(
            compat_urllib_parse_unquote('''<meta property="og:description" content="%E2%96%81%E2%96%82%E2%96%83%E2%96%84%25%E2%96%85%E2%96%86%E2%96%87%E2%96%88" />
%<a href="https://ar.wikipedia.org/wiki/%D8%AA%D8%B3%D9%88%D9%86%D8%A7%D9%85%D9%8A">%a'''),
            '''<meta property="og:description" content="▁▂▃▄%▅▆▇█" />
%<a href="https://ar.wikipedia.org/wiki/تسونامي">%a''')
        self.assertEqual(
            compat_urllib_parse_unquote('''%28%5E%E2%97%A3_%E2%97%A2%5E%29%E3%81%A3%EF%B8%BB%E3%83%87%E2%95%90%E4%B8%80    %E2%87%80    %E2%87%80    %E2%87%80    %E2%87%80    %E2%87%80    %E2%86%B6%I%Break%25Things%'''),
            '''(^◣_◢^)っ︻デ═一    ⇀    ⇀    ⇀    ⇀    ⇀    ↶%I%Break%Things%''')

    def test_compat_urllib_parse_unquote_plus(self):
        self.assertEqual(compat_urllib_parse_unquote_plus('abc%20def'), 'abc def')
        self.assertEqual(compat_urllib_parse_unquote_plus('%7e/abc+def'), '~/abc def')

    def test_compat_urllib_parse_urlencode(self):
        self.assertEqual(compat_urllib_parse_urlencode({'abc': 'def'}), 'abc=def')
        self.assertEqual(compat_urllib_parse_urlencode({'abc': b'def'}), 'abc=def')
        self.assertEqual(compat_urllib_parse_urlencode({b'abc': 'def'}), 'abc=def')
        self.assertEqual(compat_urllib_parse_urlencode({b'abc': b'def'}), 'abc=def')
        self.assertEqual(compat_urllib_parse_urlencode([('abc', 'def')]), 'abc=def')
        self.assertEqual(compat_urllib_parse_urlencode([('abc', b'def')]), 'abc=def')
        self.assertEqual(compat_urllib_parse_urlencode([(b'abc', 'def')]), 'abc=def')
        self.assertEqual(compat_urllib_parse_urlencode([(b'abc', b'def')]), 'abc=def')

    def test_compat_shlex_split(self):
        self.assertEqual(compat_shlex_split('-option "one two"'), ['-option', 'one two'])
        self.assertEqual(compat_shlex_split('-option "one\ntwo" \n -flag'), ['-option', 'one\ntwo', '-flag'])
        self.assertEqual(compat_shlex_split('-val 中文'), ['-val', '中文'])

    def test_compat_etree_Element(self):
        try:
            compat_etree_Element.items
        except AttributeError:
            self.fail('compat_etree_Element is not a type')

    def test_compat_etree_fromstring(self):
        xml = '''
            <root foo="bar" spam="中文">
                <normal>foo</normal>
                <chinese>中文</chinese>
                <foo><bar>spam</bar></foo>
            </root>
        '''
        doc = compat_etree_fromstring(xml.encode('utf-8'))
        self.assertTrue(isinstance(doc.attrib['foo'], compat_str))
        self.assertTrue(isinstance(doc.attrib['spam'], compat_str))
        self.assertTrue(isinstance(doc.find('normal').text, compat_str))
        self.assertTrue(isinstance(doc.find('chinese').text, compat_str))
        self.assertTrue(isinstance(doc.find('foo/bar').text, compat_str))

    def test_compat_etree_fromstring_doctype(self):
        xml = '''<?xml version="1.0"?>
<!DOCTYPE smil PUBLIC "-//W3C//DTD SMIL 2.0//EN" "http://www.w3.org/2001/SMIL20/SMIL20.dtd">
<smil xmlns="http://www.w3.org/2001/SMIL20/Language"></smil>'''
        compat_etree_fromstring(xml)

    def test_compat_struct_unpack(self):
        self.assertEqual(compat_struct_unpack('!B', b'\x00'), (0,))

    def test_compat_casefold(self):
        if hasattr(compat_str, 'casefold'):
            # don't bother to test str.casefold() (again)
            return
        # thanks https://bugs.python.org/file24232/casefolding.patch
        self.assertEqual(compat_casefold('hello'), 'hello')
        self.assertEqual(compat_casefold('hELlo'), 'hello')
        self.assertEqual(compat_casefold('ß'), 'ss')
        self.assertEqual(compat_casefold('fi'), 'fi')
        self.assertEqual(compat_casefold('\u03a3'), '\u03c3')
        self.assertEqual(compat_casefold('A\u0345\u03a3'), 'a\u03b9\u03c3')

    def test_compat_urllib_request_Request(self):
        self.assertEqual(
            compat_urllib_request.Request('http://127.0.0.1', method='PUT').get_method(),
            'PUT')

        class PUTrequest(compat_urllib_request.Request):
            def get_method(self):
                return 'PUT'

        self.assertEqual(
            PUTrequest('http://127.0.0.1').get_method(),
            'PUT')


if __name__ == '__main__':
    unittest.main()