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from __future__ import print_function, division, absolute_import
from datetime import datetime
from decimal import Decimal
import pytest
from petl.test.helpers import eq_, ieq
from petl.comparison import Comparable
def test_comparable():
# bools
d = [True, False]
a = sorted(d, key=Comparable)
e = [False, True]
eq_(e, a)
# ints
d = [3, 1, 2]
a = sorted(d, key=Comparable)
e = [1, 2, 3]
eq_(e, a)
# floats
d = [3., 1.2, 2.5]
a = sorted(d, key=Comparable)
e = [1.2, 2.5, 3.]
eq_(e, a)
# mixed numeric
d = [3., 1, 2.5, Decimal('1.5')]
a = sorted(d, key=Comparable)
e = [1, Decimal('1.5'), 2.5, 3.]
eq_(e, a)
# mixed numeric and bool
d = [True, False, -1.2, 2, .5]
a = sorted(d, key=Comparable)
e = [-1.2, False, .5, True, 2]
eq_(e, a)
# mixed numeric and None
d = [3, None, 2.5]
a = sorted(d, key=Comparable)
e = [None, 2.5, 3.]
eq_(e, a)
# bytes
d = [b'b', b'ccc', b'aa']
a = sorted(d, key=Comparable)
e = [b'aa', b'b', b'ccc']
eq_(e, a)
# text
d = [u'b', u'ccc', u'aa']
a = sorted(d, key=Comparable)
e = [u'aa', u'b', u'ccc']
eq_(e, a)
# mixed bytes and text
d = [u'b', b'ccc', b'aa']
a = sorted(d, key=Comparable)
# N.B., expect always bytes < unicode
e = [b'aa', b'ccc', u'b']
eq_(e, a)
# mixed bytes and None
d = [b'b', b'ccc', None, b'aa']
a = sorted(d, key=Comparable)
e = [None, b'aa', b'b', b'ccc']
eq_(e, a)
# mixed text and None
d = [u'b', u'ccc', None, u'aa']
a = sorted(d, key=Comparable)
e = [None, u'aa', u'b', u'ccc']
eq_(e, a)
# mixed bytes, text and None
d = [u'b', b'ccc', None, b'aa']
a = sorted(d, key=Comparable)
# N.B., expect always bytes < unicode
e = [None, b'aa', b'ccc', u'b']
eq_(e, a)
# mixed bytes, text, numbers and None
d = [u'b', True, b'ccc', False, None, b'aa', -1, 3.4]
a = sorted(d, key=Comparable)
e = [None, -1, False, True, 3.4, b'aa', b'ccc', u'b']
eq_(e, a)
def test_comparable_datetime():
dt = datetime.now().replace
# datetimes
d = [dt(hour=12), dt(hour=3), dt(hour=1)]
a = sorted(d, key=Comparable)
e = [dt(hour=1), dt(hour=3), dt(hour=12)]
eq_(e, a)
# mixed datetime and None
d = [dt(hour=12), None, dt(hour=3), dt(hour=1)]
a = sorted(d, key=Comparable)
e = [None, dt(hour=1), dt(hour=3), dt(hour=12)]
eq_(e, a)
# mixed datetime, numbers, bytes, text and None
d = [dt(hour=12), None, dt(hour=3), u'b', True, b'ccc', False, b'aa', -1,
3.4]
a = sorted(d, key=Comparable)
# N.B., because bytes and unicode type names have changed in PY3,
# petl uses PY2 type names to try and achieve consistent behaviour across
# versions, i.e., 'datetime' < 'str' < 'unicode' rather than 'bytes' <
# 'datetime' < 'str'
e = [None, -1, False, True, 3.4, dt(hour=3), dt(hour=12), b'aa', b'ccc',
u'b']
eq_(e, a)
def test_comparable_nested():
# lists
d = [[3], [1], [2]]
a = sorted(d, key=Comparable)
e = [[1], [2], [3]]
eq_(e, a)
# tuples
d = [(3,), (1,), (2,)]
a = sorted(d, key=Comparable)
e = [(1,), (2,), (3,)]
eq_(e, a)
# mixed lists and numeric
d = [3, 1, [2]]
a = sorted(d, key=Comparable)
e = [1, 3, [2]]
eq_(e, a)
# lists containing None
d = [[3], [None], [2]]
a = sorted(d, key=Comparable)
e = [[None], [2], [3]]
eq_(e, a)
# mixed lists and tuples
d = [[3], [1], (2,)]
a = sorted(d, key=Comparable)
e = [[1], (2,), [3]]
eq_(e, a)
# length 2 lists
d = [[3, 2], [3, 1], [2]]
a = sorted(d, key=Comparable)
e = [[2], [3, 1], [3, 2]]
eq_(e, a)
dt = datetime.now().replace
# mixed everything
d = [dt(hour=12),
None,
(dt(hour=3), 'b'),
True,
[b'aa', False],
(b'aa', -1),
3.4]
a = sorted(d, key=Comparable)
e = [None,
True,
3.4,
dt(hour=12),
(dt(hour=3), 'b'),
(b'aa', -1),
[b'aa', False]]
eq_(e, a)
def test_comparable_ieq_table():
rows = [[u'Bob', 42, 33],
[u'Jim', 13, 69],
[u'Joe', 86, 17],
[u'Ted', 23, 51]]
ieq(rows, rows)
def test_comparable_ieq_rows():
rows = [['a', 'b', 'c'], [1, 2]]
ieq(rows, rows)
def test_comparable_ieq_missing():
x = ['a', 'b', 'c']
y = ['a', 'b']
with pytest.raises(AssertionError):
ieq(x, y)
with pytest.raises(AssertionError):
ieq(y, x)
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