def test_instance(self):
Point = namedtuple('Point', 'x y')
p = Point(11, 22)
self.assertEqual(p, Point(x=11, y=22))
self.assertEqual(p, Point(11, y=22))
self.assertEqual(p, Point(y=22, x=11))
self.assertEqual(p, Point(*(11, 22)))
self.assertEqual(p, Point(**dict(x=11, y=22)))
self.assertRaises(TypeError, Point, 1) # too few args
self.assertRaises(TypeError, Point, 1, 2, 3) # too many args
self.assertRaises(TypeError, eval, 'Point(XXX=1, y=2)', locals()) # wrong keyword argument
self.assertRaises(TypeError, eval, 'Point(x=1)', locals()) # missing keyword argument
self.assertEqual(repr(p), 'Point(x=11, y=22)')
self.assertNotIn('__weakref__', dir(p))
self.assertEqual(p, Point._make([11, 22])) # test _make classmethod
self.assertEqual(p._fields, ('x', 'y')) # test _fields attribute
self.assertEqual(p._replace(x=1), (1, 22)) # test _replace method
self.assertEqual(p._asdict(), dict(x=11, y=22)) # test _asdict method
try:
p._replace(x=1, error=2)
except ValueError:
pass
else:
self._fail('Did not detect an incorrect fieldname')
# verify that field string can have commas
Point = namedtuple('Point', 'x, y')
p = Point(x=11, y=22)
self.assertEqual(repr(p), 'Point(x=11, y=22)')
# verify that fieldspec can be a non-string sequence
Point = namedtuple('Point', ('x', 'y'))
p = Point(x=11, y=22)
self.assertEqual(repr(p), 'Point(x=11, y=22)')
def TypedTuple(name, definition):
if isinstance(definition, Schema):
schema = definition
definition = definition.schema
elif isinstance(definition, dict):
schema = Schema(definition, required=True)
else:
raise ValueError('definition must be voluptuous.Schema or dict')
nt = namedtuple(name, [str(key) for key in iterkeys(definition)])
def new(cls, *args, **kwargs):
kwargs.update(dict(zip(nt._fields[:len(args)], args)))
for key in (k for k, v in iteritems(kwargs) if v is UNDEFINED):
del kwargs[key]
validated = schema(kwargs)
validated.update(dict(zip((field for field in nt._fields if field not in validated), repeat(UNDEFINED))))
return nt.__new__(cls, **validated)
return type(name, (nt,), {
'__new__': new,
'_make': classmethod(lambda cls, iterable: new(cls, *iterable)),
'_asdict': lambda self: OrderedDict(v for v in zip(self._fields, self) if v[1] != UNDEFINED),
'__slots__': (),
})
def test_repr(self):
A = namedtuple('A', 'x')
self.assertEqual(repr(A(1)), 'A(x=1)')
# repr should show the name of the subclass
class B(A):
pass
self.assertEqual(repr(B(1)), 'B(x=1)')
def test_name_conflicts(self):
# Some names like "self", "cls", "tuple", "itemgetter", and "property"
# failed when used as field names. Test to make sure these now work.
T = namedtuple('T', 'itemgetter property self cls tuple')
t = T(1, 2, 3, 4, 5)
self.assertEqual(t, (1,2,3,4,5))
newt = t._replace(itemgetter=10, property=20, self=30, cls=40, tuple=50)
self.assertEqual(newt, (10,20,30,40,50))
def test_factory(self):
Point = namedtuple('Point', 'x y')
self.assertEqual(Point.__name__, 'Point')
self.assertEqual(Point.__slots__, ())
self.assertEqual(Point.__module__, __name__)
self.assertEqual(Point.__getitem__, tuple.__getitem__)
self.assertEqual(Point._fields, ('x', 'y'))
self.assertRaises(ValueError, namedtuple, 'abc%', 'efg ghi') # type has non-alpha char
self.assertRaises(ValueError, namedtuple, 'class', 'efg ghi') # type has keyword
self.assertRaises(ValueError, namedtuple, '9abc', 'efg ghi') # type starts with digit
self.assertRaises(ValueError, namedtuple, 'abc', 'efg g%hi') # field with non-alpha char
self.assertRaises(ValueError, namedtuple, 'abc', 'abc class') # field has keyword
self.assertRaises(ValueError, namedtuple, 'abc', '8efg 9ghi') # field starts with digit
self.assertRaises(ValueError, namedtuple, 'abc', '_efg ghi') # field with leading underscore
self.assertRaises(ValueError, namedtuple, 'abc', 'efg efg ghi') # duplicate field
self.assertRaises(ValueError, namedtuple, 'abc', '?a') # non alnum starting char
namedtuple('Point0', 'x1 y2') # Verify that numbers are allowed in names
namedtuple('_', 'a b c') # Test leading underscores in a typename
nt = namedtuple('nt', 'the quick brown fox') # check unicode input
self.assertNotIn("u'", repr(nt._fields))
nt = namedtuple('nt', ('the', 'quick')) # check unicode input
self.assertNotIn("u'", repr(nt._fields))
self.assertRaises(TypeError, Point._make, [11]) # catch too few args
self.assertRaises(TypeError, Point._make, [11, 22, 33]) # catch too many args
def weather(self):
r = self._response().json()
d = r.pop("main")
feels_like = d["feels_like"]
humidity = d["humidity"]
return namedtuple("weather",
["feels", "min", "max", "humid", "pressure"])(
feels_like, d["temp_min"], d["temp_max"],
humidity, d["pressure"])
def test_name_fixer(self):
for spec, renamed in [
[('efg', 'g%hi'), ('efg', '_1')], # field with non-alpha char
[('abc', 'class'), ('abc', '_1')], # field has keyword
[('8efg', '9ghi'), ('_0', '_1')], # field starts with digit
[('abc', '_efg'), ('abc', '_1')], # field with leading underscore
[('abc', 'efg', 'efg', 'ghi'), ('abc', 'efg', '_2', 'ghi')], # duplicate field
[('abc', '', 'x'), ('abc', '_1', 'x')], # fieldname is a space
]:
self.assertEqual(namedtuple('NT', spec, rename=True)._fields, renamed)
def test_odd_sizes(self):
Zero = namedtuple('Zero', '')
self.assertEqual(Zero(), ())
self.assertEqual(Zero._make([]), ())
self.assertEqual(repr(Zero()), 'Zero()')
self.assertEqual(Zero()._asdict(), {})
self.assertEqual(Zero()._fields, ())
Dot = namedtuple('Dot', 'd')
self.assertEqual(Dot(1), (1,))
self.assertEqual(Dot._make([1]), (1,))
self.assertEqual(Dot(1).d, 1)
self.assertEqual(repr(Dot(1)), 'Dot(d=1)')
self.assertEqual(Dot(1)._asdict(), {'d':1})
self.assertEqual(Dot(1)._replace(d=999), (999,))
self.assertEqual(Dot(1)._fields, ('d',))
# n = 5000
n = 254 # SyntaxError: more than 255 arguments:
names = list(set(''.join([choice(string.ascii_letters)
for j in range(10)]) for i in range(n)))
n = len(names)
Big = namedtuple('Big', names)
b = Big(*range(n))
self.assertEqual(b, tuple(range(n)))
self.assertEqual(Big._make(range(n)), tuple(range(n)))
for pos, name in enumerate(names):
self.assertEqual(getattr(b, name), pos)
repr(b) # make sure repr() doesn't blow-up
d = b._asdict()
d_expected = dict(zip(names, range(n)))
self.assertEqual(d, d_expected)
b2 = b._replace(**dict([(names[1], 999),(names[-5], 42)]))
b2_expected = list(range(n))
b2_expected[1] = 999
b2_expected[-5] = 42
self.assertEqual(b2, tuple(b2_expected))
self.assertEqual(b._fields, tuple(names))
def test_tupleness(self):
Point = namedtuple('Point', 'x y')
p = Point(11, 22)
self.assertIsInstance(p, tuple)
self.assertEqual(p, (11, 22)) # matches a real tuple
self.assertEqual(tuple(p), (11, 22)) # coercable to a real tuple
self.assertEqual(list(p), [11, 22]) # coercable to a list
self.assertEqual(max(p), 22) # iterable
self.assertEqual(max(*p), 22) # star-able
x, y = p
self.assertEqual(p, (x, y)) # unpacks like a tuple
self.assertEqual((p[0], p[1]), (11, 22)) # indexable like a tuple
self.assertRaises(IndexError, p.__getitem__, 3)
self.assertEqual(p.x, x)
self.assertEqual(p.y, y)
self.assertRaises(AttributeError, eval, 'p.z', locals())
def desc(self):
r = self._response().json()
w_id, main, desc, icon = r.get("weather")[0].values()
return namedtuple("weather",
["id", "main", "desc", "icon"])(w_id, main, desc,
icon)
def coords(self):
r = self._response().json()
longitude, latitude = r.get("coord").values()
return namedtuple("coords", ["latitude", "longitude"])(latitude,
longitude)
def wind(self):
r = self._response().json()
self.wind_speed, self.wind_deg = r.get("wind").values()
return namedtuple("wind", ["speed", "deg"])(self.wind_speed,
self.wind_deg)
class Point(namedtuple('_Point', ['x', 'y'])):
pass
# 2011, 2012, 2013, 2014, 2015, 2016 Python Software Foundation; All Rights
# Reserved
# This file is taken from the CPython test suite and modified to test
# cnamedtuple instead of collections.namedtuple
from collections import OrderedDict
import copy
import pickle
from random import choice
import string
import sys
import unittest
from cnamedtuple import namedtuple
TestNT = namedtuple('TestNT', 'x y z') # type used for pickle tests
class TestNamedTuple(unittest.TestCase):
def test_factory(self):
Point = namedtuple('Point', 'x y')
self.assertEqual(Point.__name__, 'Point')
self.assertEqual(Point.__slots__, ())
self.assertEqual(Point.__module__, __name__)
self.assertEqual(Point.__getitem__, tuple.__getitem__)
self.assertEqual(Point._fields, ('x', 'y'))
self.assertRaises(ValueError, namedtuple, 'abc%', 'efg ghi') # type has non-alpha char
self.assertRaises(ValueError, namedtuple, 'class', 'efg ghi') # type has keyword
self.assertRaises(ValueError, namedtuple, '9abc', 'efg ghi') # type starts with digit