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# Copyright (C) 2005 by Canonical Ltd
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""Tests for rio serialization
A simple, reproducible structured IO format.
rio itself works in Unicode strings. It is typically encoded to UTF-8,
but this depends on the transport.
"""
import os
import sys
from tempfile import TemporaryFile
from bzrlib.tests import TestCaseInTempDir, TestCase
from bzrlib.rio import RioWriter, Stanza, read_stanza, read_stanzas
class TestRio(TestCase):
def test_stanza(self):
"""Construct rio stanza in memory"""
s = Stanza(number='42', name="fred")
self.assertTrue('number' in s)
self.assertFalse('color' in s)
self.assertFalse('42' in s)
self.assertEquals(list(s.iter_pairs()),
[('name', 'fred'), ('number', '42')])
self.assertEquals(s.get('number'), '42')
self.assertEquals(s.get('name'), 'fred')
def test_value_checks(self):
"""rio checks types on construction"""
# these aren't enforced at construction time
## self.assertRaises(ValueError,
## Stanza, complex=42 + 3j)
## self.assertRaises(ValueError,
## Stanza, several=range(10))
def test_empty_value(self):
"""Serialize stanza with empty field"""
s = Stanza(empty='')
self.assertEqualDiff(s.to_string(),
"empty: \n")
def test_to_lines(self):
"""Write simple rio stanza to string"""
s = Stanza(number='42', name='fred')
self.assertEquals(list(s.to_lines()),
['name: fred\n',
'number: 42\n'])
def test_to_file(self):
"""Write rio to file"""
tmpf = TemporaryFile()
s = Stanza(a_thing='something with "quotes like \\"this\\""', number='42', name='fred')
s.write(tmpf)
tmpf.seek(0)
self.assertEqualDiff(tmpf.read(), r'''
a_thing: something with "quotes like \"this\""
name: fred
number: 42
'''[1:])
def test_multiline_string(self):
tmpf = TemporaryFile()
s = Stanza(motto="war is peace\nfreedom is slavery\nignorance is strength")
s.write(tmpf)
tmpf.seek(0)
self.assertEqualDiff(tmpf.read(), '''\
motto: war is peace
\tfreedom is slavery
\tignorance is strength
''')
tmpf.seek(0)
s2 = read_stanza(tmpf)
self.assertEquals(s, s2)
def test_read_stanza(self):
"""Load stanza from string"""
lines = """\
revision: mbp@sourcefrog.net-123-abc
timestamp: 1130653962
timezone: 36000
committer: Martin Pool <mbp@test.sourcefrog.net>
""".splitlines(True)
s = read_stanza(lines)
self.assertTrue('revision' in s)
self.assertEqualDiff(s.get('revision'), 'mbp@sourcefrog.net-123-abc')
self.assertEquals(list(s.iter_pairs()),
[('revision', 'mbp@sourcefrog.net-123-abc'),
('timestamp', '1130653962'),
('timezone', '36000'),
('committer', "Martin Pool <mbp@test.sourcefrog.net>")])
self.assertEquals(len(s), 4)
def test_repeated_field(self):
"""Repeated field in rio"""
s = Stanza()
for k, v in [('a', '10'), ('b', '20'), ('a', '100'), ('b', '200'),
('a', '1000'), ('b', '2000')]:
s.add(k, v)
s2 = read_stanza(s.to_lines())
self.assertEquals(s, s2)
self.assertEquals(s.get_all('a'), map(str, [10, 100, 1000]))
self.assertEquals(s.get_all('b'), map(str, [20, 200, 2000]))
def test_backslash(self):
s = Stanza(q='\\')
t = s.to_string()
self.assertEqualDiff(t, 'q: \\\n')
s2 = read_stanza(s.to_lines())
self.assertEquals(s, s2)
def test_blank_line(self):
s = Stanza(none='', one='\n', two='\n\n')
self.assertEqualDiff(s.to_string(), """\
none:
one:
\t
two:
\t
\t
""")
s2 = read_stanza(s.to_lines())
self.assertEquals(s, s2)
def test_whitespace_value(self):
s = Stanza(space=' ', tabs='\t\t\t', combo='\n\t\t\n')
self.assertEqualDiff(s.to_string(), """\
combo:
\t\t\t
\t
space:
tabs: \t\t\t
""")
s2 = read_stanza(s.to_lines())
self.assertEquals(s, s2)
def test_quoted(self):
"""rio quoted string cases"""
s = Stanza(q1='"hello"',
q2=' "for',
q3='\n\n"for"\n',
q4='for\n"\nfor',
q5='\n',
q6='"',
q7='""',
q8='\\',
q9='\\"\\"',
)
s2 = read_stanza(s.to_lines())
self.assertEquals(s, s2)
def test_read_empty(self):
"""Detect end of rio file"""
s = read_stanza([])
self.assertEqual(s, None)
self.assertTrue(s is None)
def test_read_iter(self):
"""Read several stanzas from file"""
tmpf = TemporaryFile()
tmpf.write("""\
version_header: 1
name: foo
val: 123
name: bar
val: 129319
""")
tmpf.seek(0)
reader = read_stanzas(tmpf)
read_iter = iter(reader)
stuff = list(reader)
self.assertEqual(stuff,
[ Stanza(version_header='1'),
Stanza(name="foo", val='123'),
Stanza(name="bar", val='129319'), ])
def test_read_several(self):
"""Read several stanzas from file"""
tmpf = TemporaryFile()
tmpf.write("""\
version_header: 1
name: foo
val: 123
name: quoted
address: "Willowglen"
\t 42 Wallaby Way
\t Sydney
name: bar
val: 129319
""")
tmpf.seek(0)
s = read_stanza(tmpf)
self.assertEquals(s, Stanza(version_header='1'))
s = read_stanza(tmpf)
self.assertEquals(s, Stanza(name="foo", val='123'))
s = read_stanza(tmpf)
self.assertEqualDiff(s.get('name'), 'quoted')
self.assertEqualDiff(s.get('address'), ' "Willowglen"\n 42 Wallaby Way\n Sydney')
s = read_stanza(tmpf)
self.assertEquals(s, Stanza(name="bar", val='129319'))
s = read_stanza(tmpf)
self.assertEquals(s, None)
def test_tricky_quoted(self):
tmpf = TemporaryFile()
tmpf.write('''\
s: "one"
s:
\t"one"
\t
s: "
s: ""
s: """
s:
\t
s: \\
s:
\t\\
\t\\\\
\t
s: word\\
s: quote"
s: backslashes\\\\\\
s: both\\\"
''')
tmpf.seek(0)
expected_vals = ['"one"',
'\n"one"\n',
'"',
'""',
'"""',
'\n',
'\\',
'\n\\\n\\\\\n',
'word\\',
'quote\"',
'backslashes\\\\\\',
'both\\\"',
]
for expected in expected_vals:
stanza = read_stanza(tmpf)
self.assertEquals(len(stanza), 1)
self.assertEqualDiff(stanza.get('s'), expected)
def test_write_empty_stanza(self):
"""Write empty stanza"""
l = list(Stanza().to_lines())
self.assertEquals(l, [])
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