Files
parse/test_parse.py
T
2011-11-23 09:12:44 +11:00

494 lines
19 KiB
Python

'''Test suite for parse.py
This code is copyright 2011 eKit.com Inc (http://www.ekit.com/)
See the end of the source file for the license of use.
'''
import unittest
from datetime import datetime, time
import parse
class TestPattern(unittest.TestCase):
def _test_expression(self, format, expression):
self.assertEqual(parse.Parser(format)._expression, expression)
def test_braces(self):
'pull a simple string out of another string'
self._test_expression('{{ }}', '\{ \}')
def test_fixed(self):
'pull a simple string out of another string'
self._test_expression('{}', '(.+?)')
self._test_expression('{} {}', '(.+?) (.+?)')
def test_named(self):
'pull a named string out of another string'
self._test_expression('{name}', '(?P<name>.+?)')
self._test_expression('{name} {other}',
'(?P<name>.+?) (?P<other>.+?)')
def test_named_typed(self):
'pull a named string out of another string'
self._test_expression('{name:w}', '(?P<name>\w+)')
self._test_expression('{name:w} {other:w}',
'(?P<name>\w+) (?P<other>\w+)')
def test_beaker(self):
'skip some trailing whitespace'
self._test_expression('{:<}', '(.+?) *')
def test_left_fill(self):
'skip some trailing periods'
self._test_expression('{:.<}', '(.+?)\.*')
def test_bird(self):
'skip some trailing whitespace'
self._test_expression('{:>}', ' *(.+?)')
def test_center(self):
'skip some surrounding whitespace'
self._test_expression('{:^}', ' *(.+?) *')
def test_format(self):
def _(fmt, matches):
d = parse.extract_format(fmt, {'spam':'spam'})
for k in matches:
self.assertEqual(d.get(k), matches[k],
'm["%s"]=%r, expect %r' % (k, d.get(k), matches[k]))
for t in '%obxegfdDwWsS':
_(t, dict(type=t))
_('10'+t, dict(type=t, width='10'))
_('05d', dict(type='d', width='5', zero=True))
_('<', dict(align='<'))
_('.<', dict(align='<', fill='.'))
_('>', dict(align='>'))
_('.>', dict(align='>', fill='.'))
_('^', dict(align='^'))
_('.^', dict(align='^', fill='.'))
_('x=d', dict(type='d', align='=', fill='x'))
_('d', dict(type='d'))
_('ti', dict(type='ti'))
_('spam', dict(type='spam'))
_('.^010d', dict(type='d', width='10', align='^', fill='.',
zero=True))
class TestParse(unittest.TestCase):
def test_no_match(self):
'string does not match format'
self.assertEqual(parse.parse('{{hello}}', 'hello'), None)
def test_nothing(self):
'do no actual parsing'
r = parse.parse('{{hello}}', '{hello}')
self.assertEqual(r.fixed, ())
self.assertEqual(r.named, {})
def test_regular_expression(self):
'match an actual regular expression'
s = r'^(hello\s[wW]{}!+.*)$'
e = s.replace('{}', 'orld')
r = parse.parse(s, e)
self.assertEqual(r.fixed, ('orld',))
e = s.replace('{}', '.*?')
r = parse.parse(s, e)
self.assertEqual(r.fixed, ('.*?',))
def test_fixed(self):
'pull a fixed value out of string'
r = parse.parse('hello {}', 'hello world')
self.assertEqual(r.fixed, ('world', ))
def test_left(self):
'pull left-aligned text out of string'
r = parse.parse('{:<} world', 'hello world')
self.assertEqual(r.fixed, ('hello', ))
def test_right(self):
'pull right-aligned text out of string'
r = parse.parse('hello {:>}', 'hello world')
self.assertEqual(r.fixed, ('world', ))
def test_center(self):
'pull center-aligned text out of string'
r = parse.parse('hello {:^} world', 'hello there world')
self.assertEqual(r.fixed, ('there', ))
def test_typed(self):
'pull a named, typed values out of string'
r = parse.parse('hello {:d} {:w}', 'hello 12 people')
self.assertEqual(r.fixed, (12, 'people'))
r = parse.parse('hello {:w} {:w}', 'hello 12 people')
self.assertEqual(r.fixed, ('12', 'people'))
def test_custom_type(self):
'use a custom type'
r = parse.parse('{:shouty} {:spam}', 'hello world',
dict(shouty=lambda s:s.upper(), spam=lambda s:''.join(reversed(s))))
self.assertEqual(r.fixed, ('HELLO', 'dlrow'))
r = parse.parse('{:d}', '12', dict(d=lambda s: int(s) * 2))
self.assertEqual(r.fixed, (24,))
r = parse.parse('{:d}', '12')
self.assertEqual(r.fixed, (12,))
def test_typed_fail(self):
'pull a named, typed values out of string'
self.assertEqual(parse.parse('hello {:d} {:w}', 'hello people 12'), None)
def test_named(self):
'pull a named value out of string'
r = parse.parse('hello {name}', 'hello world')
self.assertEqual(r.named, {'name': 'world'})
def test_mixed(self):
'pull a fixed and named values out of string'
r = parse.parse('hello {} {name} {} {spam}', 'hello world and other beings')
self.assertEqual(r.fixed, ('world', 'other'))
self.assertEqual(r.named, dict(name='and', spam='beings'))
def test_named_typed(self):
'pull a named, typed values out of string'
r = parse.parse('hello {number:d} {things}', 'hello 12 people')
self.assertEqual(r.named, dict(number=12, things='people'))
r = parse.parse('hello {number:w} {things}', 'hello 12 people')
self.assertEqual(r.named, dict(number='12', things='people'))
def test_named_aligned_typed(self):
'pull a named, typed values out of string'
r = parse.parse('hello {number:<d} {things}', 'hello 12 people')
self.assertEqual(r.named, dict(number=12, things='people'))
r = parse.parse('hello {number:>d} {things}', 'hello 12 people')
self.assertEqual(r.named, dict(number=12, things='people'))
r = parse.parse('hello {number:^d} {things}', 'hello 12 people')
self.assertEqual(r.named, dict(number=12, things='people'))
def test_multiline(self):
r = parse.parse('hello\n{}\nworld', 'hello\nthere\nworld')
self.assertEqual(r.fixed[0], 'there')
def test_spans(self):
'test the string sections our fields come from'
string = 'hello world'
r = parse.parse('hello {}', string)
self.assertEqual(r.spans, {0: (6,11)})
start, end = r.spans[0]
self.assertEqual(string[start:end], r.fixed[0])
string = 'hello world'
r = parse.parse('hello {:>}', string)
self.assertEqual(r.spans, {0: (10,15)})
start, end = r.spans[0]
self.assertEqual(string[start:end], r.fixed[0])
string = 'hello 0x12 world'
r = parse.parse('hello {val:x} world', string)
self.assertEqual(r.spans, {'val': (6,10)})
start, end = r.spans['val']
self.assertEqual(string[start:end], '0x%x' % r.named['val'])
string = 'hello world and other beings'
r = parse.parse('hello {} {name} {} {spam}', string)
self.assertEqual(r.spans, {0: (6, 11), 'name': (12, 15),
1: (16, 21), 'spam': (22, 28)})
def test_numbers(self):
'pull a numbers out of a string'
def y(fmt, s, e, str_equals=False):
p = parse.compile(fmt)
r = p.parse(s)
if r is None:
self.fail('%r (%r) did not match %r' % (fmt, p._expression, s))
r = r.fixed[0]
if str_equals:
self.assertEqual(str(r), str(e),
'%r found %r in %r, not %r' % (fmt, r, s, e))
else:
self.assertEqual(r, e,
'%r found %r in %r, not %r' % (fmt, r, s, e))
def n(fmt, s, e):
if parse.parse(fmt, s) is not None:
self.fail('%r matched %r' % (fmt, s))
y('a {:d} b', 'a 12 b', 12)
y('a {:5d} b', 'a 12 b', 12)
y('a {:5d} b', 'a -12 b', -12)
y('a {:d} b', 'a -12 b', -12)
y('a {:d} b', 'a +12 b', 12)
y('a {:d} b', 'a 12 b', 12)
y('a {:d} b', 'a 0b1000 b', 8)
y('a {:d} b', 'a 0o1000 b', 512)
y('a {:d} b', 'a 0x1000 b', 4096)
y('a {:d} b', 'a 0xabcdef b', 0xabcdef)
y('a {:%} b', 'a 100% b', 1)
y('a {:%} b', 'a 50% b', .5)
y('a {:%} b', 'a 50.1% b', .501)
y('a {:n} b', 'a 100 b', 100)
y('a {:n} b', 'a 1,000 b', 1000)
y('a {:n} b', 'a 1.000 b', 1000)
y('a {:n} b', 'a -1,000 b', -1000)
y('a {:n} b', 'a 10,000 b', 10000)
y('a {:n} b', 'a 100,000 b', 100000)
n('a {:n} b', 'a 100,00 b', None)
y('a {:n} b', 'a 100.000 b', 100000)
y('a {:n} b', 'a 1.000.000 b', 1000000)
y('a {:f} b', 'a 12.0 b', 12.0)
y('a {:f} b', 'a -12.1 b', -12.1)
y('a {:f} b', 'a +12.1 b', 12.1)
n('a {:f} b', 'a 12 b', None)
y('a {:e} b', 'a 1.0e10 b', 1.0e10)
y('a {:e} b', 'a 1.0E10 b', 1.0e10)
y('a {:e} b', 'a 1.10000e10 b', 1.1e10)
y('a {:e} b', 'a 1.0e-10 b', 1.0e-10)
y('a {:e} b', 'a 1.0e+10 b', 1.0e10)
# can't actually test this one on values 'cos nan != nan
y('a {:e} b', 'a nan b', float('nan'), str_equals=True)
y('a {:e} b', 'a NAN b', float('nan'), str_equals=True)
y('a {:e} b', 'a inf b', float('inf'))
y('a {:e} b', 'a +inf b', float('inf'))
y('a {:e} b', 'a -inf b', float('-inf'))
y('a {:e} b', 'a INF b', float('inf'))
y('a {:e} b', 'a +INF b', float('inf'))
y('a {:e} b', 'a -INF b', float('-inf'))
y('a {:g} b', 'a 1 b', 1)
y('a {:g} b', 'a 1e10 b', 1e10)
y('a {:g} b', 'a 1.0e10 b', 1.0e10)
y('a {:g} b', 'a 1.0E10 b', 1.0e10)
y('a {:b} b', 'a 1000 b', 8)
y('a {:b} b', 'a 0b1000 b', 8)
y('a {:o} b', 'a 12345670 b', int('12345670', 8))
y('a {:o} b', 'a 0o12345670 b', int('12345670', 8))
y('a {:x} b', 'a 1234567890abcdef b', 0x1234567890abcdef)
y('a {:x} b', 'a 1234567890ABCDEF b', 0x1234567890ABCDEF)
y('a {:x} b', 'a 0x1234567890abcdef b', 0x1234567890abcdef)
y('a {:x} b', 'a 0x1234567890ABCDEF b', 0x1234567890ABCDEF)
y('a {:05d} b', 'a 00001 b', 1)
y('a {:05d} b', 'a -00001 b', -1)
y('a {:05d} b', 'a +00001 b', 1)
y('a {:=d} b', 'a 000012 b', 12)
y('a {:x=5d} b', 'a xxx12 b', 12)
y('a {:x=5d} b', 'a -xxx12 b', -12)
def test_datetimes(self):
def y(fmt, s, e, tz=None):
p = parse.compile(fmt)
r = p.parse(s)
if r is None:
self.fail('%r (%r) did not match %r' % (fmt, p._expression, s))
r = r.fixed[0]
self.assertEqual(r, e,
'%r found %r in %r, not %r' % (fmt, r, s, e))
if tz is not None:
self.assertEqual(r.tzinfo, tz,
'%r found TZ %r in %r, not %r' % (fmt, r.tzinfo, s, e))
def n(fmt, s, e):
if parse.parse(fmt, s) is not None:
self.fail('%r matched %r' % (fmt, s))
utc = parse.FixedTzOffset(0, 'UTC')
aest = parse.FixedTzOffset(10*60, '+1000')
tz60 = parse.FixedTzOffset(60, '+01:00')
# ISO 8660 variants
# YYYY-MM-DD (eg 1997-07-16)
y('a {:ti} b', 'a 1997-07-16 b', datetime(1997, 7, 16))
# YYYY-MM-DDThh:mmTZD (eg 1997-07-16T19:20+01:00)
y('a {:ti} b', 'a 1997-07-16T19:20 b', datetime(1997, 7, 16, 19, 20, 0))
y('a {:ti} b', 'a 1997-07-16T19:20Z b',
datetime(1997, 7, 16, 19, 20, tzinfo=utc))
y('a {:ti} b', 'a 1997-07-16T19:20+01:00 b',
datetime(1997, 7, 16, 19, 20, tzinfo=tz60))
# YYYY-MM-DDThh:mm:ssTZD (eg 1997-07-16T19:20:30+01:00)
y('a {:ti} b', 'a 1997-07-16T19:20:30 b', datetime(1997, 7, 16, 19, 20, 30))
y('a {:ti} b', 'a 1997-07-16T19:20:30Z b',
datetime(1997, 7, 16, 19, 20, 30, tzinfo=utc))
y('a {:ti} b', 'a 1997-07-16T19:20:30+01:00 b',
datetime(1997, 7, 16, 19, 20, 30, tzinfo=tz60))
# YYYY-MM-DDThh:mm:ss.sTZD (eg 1997-07-16T19:20:30.45+01:00)
y('a {:ti} b', 'a 1997-07-16T19:20:30.500000 b', datetime(1997, 7, 16, 19, 20, 30, 500000))
y('a {:ti} b', 'a 1997-07-16T19:20:30.5Z b',
datetime(1997, 7, 16, 19, 20, 30, 500000, tzinfo=utc))
y('a {:ti} b', 'a 1997-07-16T19:20:30.5+01:00 b',
datetime(1997, 7, 16, 19, 20, 30, 500000, tzinfo=tz60))
aest_d = datetime(2011, 11, 21, 10, 21, 36, tzinfo=aest)
dt = datetime(2011, 11, 21, 10, 21, 36)
dt00 = datetime(2011, 11, 21, 10, 21)
d = datetime(2011, 11, 21)
# te RFC2822 e-mail format datetime
y('a {:te} b', 'a Mon, 21 Nov 2011 10:21:36 +1000 b', aest_d)
y('a {:te} b', 'a 21 Nov 2011 10:21:36 +1000 b', aest_d)
# tg global (day/month) format datetime
y('a {:tg} b', 'a 21/11/2011 10:21:36 AM +1000 b', aest_d)
y('a {:tg} b', 'a 21-11-2011 10:21:36 AM +1000 b', aest_d)
y('a {:tg} b', 'a 21/11/2011 10:21:36 +1000 b', aest_d)
y('a {:tg} b', 'a 21/11/2011 10:21:36 b', dt)
y('a {:tg} b', 'a 21/11/2011 10:21 b', dt00)
y('a {:tg} b', 'a 21-11-2011 b', d)
y('a {:tg} b', 'a 21-Nov-2011 10:21:36 AM +1000 b', aest_d)
y('a {:tg} b', 'a 21-November-2011 10:21:36 AM +1000 b', aest_d)
# ta US (month/day) format datetime
y('a {:ta} b', 'a 11/21/2011 10:21:36 AM +1000 b', aest_d)
y('a {:ta} b', 'a 11-21-2011 10:21:36 AM +1000 b', aest_d)
y('a {:ta} b', 'a 11/21/2011 10:21:36 +1000 b', aest_d)
y('a {:ta} b', 'a 11/21/2011 10:21:36 b', dt)
y('a {:ta} b', 'a 11/21/2011 10:21 b', dt00)
y('a {:ta} b', 'a 11-21-2011 b', d)
y('a {:ta} b', 'a Nov-21-2011 10:21:36 AM +1000 b', aest_d)
y('a {:ta} b', 'a November-21-2011 10:21:36 AM +1000 b', aest_d)
y('a {:ta} b', 'a November-21-2011 b', d)
# th HTTP log format date/time datetime
y('a {:th} b', 'a 21/Nov/2011:10:21:36 +1000 b', aest_d)
d = datetime(2011, 11, 21, 10, 21, 36)
# tc ctime() format datetime
y('a {:tc} b', 'a Mon Nov 21 10:21:36 2011 b', d)
t530 = parse.FixedTzOffset(-5*60 - 30, '-5:30')
# tt Time time
y('a {:tt} b', 'a 10:21:36 AM +1000 b', time(10, 21, 36, tzinfo=aest))
y('a {:tt} b', 'a 10:21:36 AM b', time(10, 21, 36))
y('a {:tt} b', 'a 10:21:36 PM b', time(22, 21, 36))
y('a {:tt} b', 'a 10:21:36 b', time(10, 21, 36))
y('a {:tt} b', 'a 10:21 b', time(10, 21))
y('a {:tt} b', 'a 10:21:36 PM -5:30 b', time(22, 21, 36, tzinfo=t530))
def test_datetime_group_count(self):
'test we increment the group count correctly for datetimes'
r = parse.parse('{:ti} {}', '1972-01-01 spam')
self.assertEqual(r.fixed[1], 'spam')
r = parse.parse('{:tg} {}', '1-1-1972 spam')
self.assertEqual(r.fixed[1], 'spam')
r = parse.parse('{:ta} {}', '1-1-1972 spam')
self.assertEqual(r.fixed[1], 'spam')
r = parse.parse('{:th} {}', '21/Nov/2011:10:21:36 +1000 spam')
self.assertEqual(r.fixed[1], 'spam')
r = parse.parse('{:te} {}', '21 Nov 2011 10:21:36 +1000 spam')
self.assertEqual(r.fixed[1], 'spam')
r = parse.parse('{:tc} {}', 'Mon Nov 21 10:21:36 2011 spam')
self.assertEqual(r.fixed[1], 'spam')
r = parse.parse('{:tt} {}', '10:21 spam')
self.assertEqual(r.fixed[1], 'spam')
def test_mixed_types(self):
'stress-test: pull one of everything out of a string'
r = parse.parse('''
letters: {:w}
non-letters: {:W}
whitespace: "{:s}"
non-whitespace: \t{:S}\n
digits: {:d} {:d} {:d}
non-digits: {:D}
numbers with thousands: {:n} {:n}
fixed-point: {:f} {:f}
floating-point: {:e} {:e}
general numbers: {:g} {:g} {:g} {:g}
binary: {:b} {:b}
octal: {:o} {:o}
hex: {:x} {:x}
ISO 8601 e.g. {:ti}
RFC2822 e.g. {:te}
Global e.g. {:tg}
US e.g. {:ta}
ctime() e.g. {:tc}
HTTP e.g. {:th}
time: {:tt}
final value: {}
''',
'''
letters: abcdef_GHIJLK
non-letters: !@#%$ *^%
whitespace: " \t\n"
non-whitespace: \tabc\n
digits: 12345 0b1011011 0xabcdef
non-digits: abcdef
numbers with thousands: 1,000 1.000.000
fixed-point: 100.2345 0.00001
floating-point: 1.1e-10 NAN
general numbers: 1 1.1 1.1e10 nan
binary: 0b1000 0B1000
octal: 0o1000 0O1000
hex: 0x1000 0X1000
ISO 8601 e.g. 1972-01-20T10:21:36Z
RFC2822 e.g. Mon, 20 Jan 1972 10:21:36 +1000
Global e.g. 20/1/1972 10:21:36 AM +1:00
US e.g. 1/20/1972 10:21:36 PM +10:30
ctime() e.g. Sun Sep 16 01:03:52 1973
HTTP e.g. 21/Nov/2011:00:07:11 +0000
time: 10:21:36 PM -5:30
final value: spam
''')
self.assertEqual(r.fixed[31], 'spam')
def test_too_many_fields(self):
p = parse.compile('{:ti}' * 15)
self.assertRaises(parse.TooManyFields, p.parse, '')
class TestSearch(unittest.TestCase):
def test_basic(self):
'basic search() test'
r = parse.search('a {} c', ' a b c ')
self.assertEqual(r.fixed, ('b',))
def test_multiline(self):
'multiline search() test'
r = parse.search('age: {:d}\n', 'name: Rufus\nage: 42\ncolor: red\n')
self.assertEqual(r.fixed, (42,))
def test_pos(self):
'basic search() test'
r = parse.search('a {} c', ' a b c ', 2)
self.assertEqual(r, None)
class TestFindall(unittest.TestCase):
def test_findall(self):
'basic findall() test'
s = ''.join(r.fixed[0] for r in parse.findall(">{}<", "<p>some <b>bold</b> text</p>"))
self.assertEqual(s, "some bold text")
if __name__ == '__main__':
unittest.main()
# Copyright (c) 2011 eKit.com Inc (http://www.ekit.com/)
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
# vim: set filetype=python ts=4 sw=4 et si tw=75