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bzrlib/tests/test_rio.py
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# Copyright (C) 2005, 2006 Canonical Ltd
 
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# Copyright (C) 2005 by Canonical Ltd
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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"""Tests for rio serialization
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but this depends on the transport.
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"""
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import cStringIO
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import os
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import re
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import sys
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from tempfile import TemporaryFile
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from bzrlib import (
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    rio,
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    )
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from bzrlib.tests import TestCaseInTempDir, TestCase
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from bzrlib.rio import (RioWriter, Stanza, read_stanza, read_stanzas, rio_file,
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                        RioReader)
 
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from bzrlib.rio import RioWriter, Stanza, read_stanza, read_stanzas
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class TestRio(TestCase):
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        # these aren't enforced at construction time
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        ## self.assertRaises(ValueError,
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        ##        Stanza, complex=42 + 3j)
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        ## self.assertRaises(ValueError,
 
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        ## self.assertRaises(ValueError, 
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        ##        Stanza, several=range(10))
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    def test_empty_value(self):
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                ['name: fred\n',
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                 'number: 42\n'])
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    def test_as_dict(self):
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        """Convert rio Stanza to dictionary"""
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        s = Stanza(number='42', name='fred')
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        sd = s.as_dict()
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        self.assertEquals(sd, dict(number='42', name='fred'))
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    def test_to_file(self):
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        """Write rio to file"""
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        tmpf = TemporaryFile()
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    def test_repeated_field(self):
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        """Repeated field in rio"""
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        s = Stanza()
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        for k, v in [('a', '10'), ('b', '20'), ('a', '100'), ('b', '200'),
 
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        for k, v in [('a', '10'), ('b', '20'), ('a', '100'), ('b', '200'), 
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                     ('a', '1000'), ('b', '2000')]:
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            s.add(k, v)
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        s2 = read_stanza(s.to_lines())
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    def test_blank_line(self):
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        s = Stanza(none='', one='\n', two='\n\n')
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        self.assertEqualDiff(s.to_string(), """\
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none:\x20
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one:\x20
 
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none: 
 
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one: 
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\t
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two:\x20
 
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two: 
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\t
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\t
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""")
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    def test_whitespace_value(self):
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        s = Stanza(space=' ', tabs='\t\t\t', combo='\n\t\t\n')
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        self.assertEqualDiff(s.to_string(), """\
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combo:\x20
 
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combo: 
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\t\t\t
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\t
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space:\x20\x20
 
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space:  
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tabs: \t\t\t
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""")
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        s2 = read_stanza(s.to_lines())
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        self.assertEquals(s, s2)
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        self.rio_file_stanzas([s])
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    def test_quoted(self):
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        """rio quoted string cases"""
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        s = Stanza(q1='"hello"',
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                   q2=' "for',
 
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        s = Stanza(q1='"hello"', 
 
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                   q2=' "for', 
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                   q3='\n\n"for"\n',
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                   q4='for\n"\nfor',
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                   q5='\n',
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                   q6='"',
 
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                   q6='"', 
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                   q7='""',
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                   q8='\\',
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                   q9='\\"\\"',
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                   )
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        s2 = read_stanza(s.to_lines())
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        self.assertEquals(s, s2)
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        # apparent bug in read_stanza
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        # s3 = read_stanza(self.stanzas_to_str([s]))
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        # self.assertEquals(s, s3)
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    def test_read_empty(self):
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        """Detect end of rio file"""
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        s = read_stanza([])
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        self.assertEqual(s, None)
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        self.assertTrue(s is None)
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    def test_read_iter(self):
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        """Read several stanzas from file"""
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        tmpf = TemporaryFile()
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        reader = read_stanzas(tmpf)
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        read_iter = iter(reader)
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        stuff = list(reader)
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        self.assertEqual(stuff,
 
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        self.assertEqual(stuff, 
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                [ Stanza(version_header='1'),
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                  Stanza(name="foo", val='123'),
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                  Stanza(name="bar", val='129319'), ])
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        self.assertEquals(s, Stanza(name="bar", val='129319'))
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        s = read_stanza(tmpf)
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        self.assertEquals(s, None)
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        self.check_rio_file(tmpf)
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    def check_rio_file(self, real_file):
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        real_file.seek(0)
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        read_write = rio_file(RioReader(real_file)).read()
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        real_file.seek(0)
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        self.assertEquals(read_write, real_file.read())
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    @staticmethod
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    def stanzas_to_str(stanzas):
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        return rio_file(stanzas).read()
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    def rio_file_stanzas(self, stanzas):
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        new_stanzas = list(RioReader(rio_file(stanzas)))
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        self.assertEqual(new_stanzas, stanzas)
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    def test_tricky_quoted(self):
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        tmpf = TemporaryFile()
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        tmpf.write('''\
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s: "one"
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s:\x20
 
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s: 
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\t"one"
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\t
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s: """
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s:\x20
 
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s: 
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\t
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s: \\
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s:\x20
 
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s: 
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\t\\
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\t\\\\
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\t
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            ]
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        for expected in expected_vals:
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            stanza = read_stanza(tmpf)
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            self.rio_file_stanzas([stanza])
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            self.assertEquals(len(stanza), 1)
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            self.assertEqualDiff(stanza.get('s'), expected)
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        """Write empty stanza"""
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        l = list(Stanza().to_lines())
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        self.assertEquals(l, [])
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    def test_rio_raises_type_error(self):
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        """TypeError on adding invalid type to Stanza"""
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        s = Stanza()
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        self.assertRaises(TypeError, s.add, 'foo', {})
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    def test_rio_raises_type_error_key(self):
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        """TypeError on adding invalid type to Stanza"""
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        s = Stanza()
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        self.assertRaises(TypeError, s.add, 10, {})
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    def test_rio_unicode(self):
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        uni_data = u'\N{KATAKANA LETTER O}'
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        s = Stanza(foo=uni_data)
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        self.assertEquals(s.get('foo'), uni_data)
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        raw_lines = s.to_lines()
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        self.assertEquals(raw_lines,
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                ['foo: ' + uni_data.encode('utf-8') + '\n'])
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        new_s = read_stanza(raw_lines)
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        self.assertEquals(new_s.get('foo'), uni_data)
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    def test_rio_to_unicode(self):
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        uni_data = u'\N{KATAKANA LETTER O}'
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        s = Stanza(foo=uni_data)
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        unicode_str = s.to_unicode()
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        self.assertEqual(u'foo: %s\n' % (uni_data,), unicode_str)
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        new_s = rio.read_stanza_unicode(unicode_str.splitlines(True))
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        self.assertEqual(uni_data, new_s.get('foo'))
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    def test_nested_rio_unicode(self):
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        uni_data = u'\N{KATAKANA LETTER O}'
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        s = Stanza(foo=uni_data)
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        parent_stanza = Stanza(child=s.to_unicode())
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        raw_lines = parent_stanza.to_lines()
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        self.assertEqual(['child: foo: ' + uni_data.encode('utf-8') + '\n',
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                          '\t\n',
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                         ], raw_lines)
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        new_parent = read_stanza(raw_lines)
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        child_text = new_parent.get('child')
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        self.assertEqual(u'foo: %s\n' % uni_data, child_text)
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        new_child = rio.read_stanza_unicode(child_text.splitlines(True))
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        self.assertEqual(uni_data, new_child.get('foo'))
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    def mail_munge(self, lines, dos_nl=True):
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        new_lines = []
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        for line in lines:
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            line = re.sub(' *\n', '\n', line)
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            if dos_nl:
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                line = re.sub('([^\r])\n', '\\1\r\n', line)
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            new_lines.append(line)
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        return new_lines
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    def test_patch_rio(self):
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        stanza = Stanza(data='#\n\r\\r ', space=' ' * 255, hash='#' * 255)
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        lines = rio.to_patch_lines(stanza)
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        for line in lines:
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            self.assertContainsRe(line, '^# ')
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            self.assertTrue(72 >= len(line))
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        for line in rio.to_patch_lines(stanza, max_width=12):
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            self.assertTrue(12 >= len(line))
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        new_stanza = rio.read_patch_stanza(self.mail_munge(lines,
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                                                           dos_nl=False))
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        lines = self.mail_munge(lines)
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        new_stanza = rio.read_patch_stanza(lines)
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        self.assertEqual('#\n\r\\r ', new_stanza.get('data'))
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        self.assertEqual(' '* 255, new_stanza.get('space'))
381
 
        self.assertEqual('#'* 255, new_stanza.get('hash'))
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383
 
    def test_patch_rio_linebreaks(self):
384
 
        stanza = Stanza(breaktest='linebreak -/'*30)
385
 
        self.assertContainsRe(rio.to_patch_lines(stanza, 71)[0],
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                              'linebreak\\\\\n')
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        stanza = Stanza(breaktest='linebreak-/'*30)
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        self.assertContainsRe(rio.to_patch_lines(stanza, 70)[0],
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                              'linebreak-\\\\\n')
390
 
        stanza = Stanza(breaktest='linebreak/'*30)
391
 
        self.assertContainsRe(rio.to_patch_lines(stanza, 70)[0],
392
 
                              'linebreak\\\\\n')