def test_hash(self):
a, b, c = SparseDate(2012, 8, 1), SparseDate(2012, 8,
None), SparseDate(
2012, None, None)
self.assertEqual(hash(a), hash(SparseDate(2012, 8, 1)))
self.assertNotEqual(hash(a), hash(b))
self.assertNotEqual(hash(a), hash(c))
self.assertNotEqual(hash(b), hash(c))
def test_str(self):
a, b, c = SparseDate(2012, 8, 1), SparseDate(2012, 8,
None), SparseDate(
2012, None, None)
self.assertEqual('2012-8-1', str(a))
self.assertEqual('2012-8-None', str(b))
self.assertEqual('2012-None-None', str(c))
self.assertEqual(eval(repr(a)), a)
self.assertEqual(eval(repr(b)), b)
self.assertEqual(eval(repr(c)), c)
def test_downsample_to_common(self):
a = SparseDate(2012, 6, 1)
self.assertEqual([SparseDate(2012, 6, 1)],
list(SparseDate.downsample_to_common([a])))
b = SparseDate(2012, 1, None)
self.assertEqual([SparseDate(2012, 6, None), SparseDate(2012, 1, None)],
list(SparseDate.downsample_to_common([a, b])))
c = SparseDate(2012, None, None)
self.assertEqual([SparseDate(2012, None, None),
SparseDate(2012, None, None),
SparseDate(2012, None, None)],
list(SparseDate.downsample_to_common([a, b, c])))
def test_downsample(self):
self.assertEqual(
SparseDate(2012, 5, 1).downsample('day'), SparseDate(2012, 5, 1))
self.assertEqual(
SparseDate(2012, 5, 1).downsample('month'),
SparseDate(2012, 5, None))
self.assertEqual(
SparseDate(2012, 5, 1).downsample('year'),
SparseDate(2012, None, None))
with self.assertRaises(ValueError):
SparseDate(2012, 1, None).downsample('day')
with self.assertRaises(ValueError):
SparseDate(2012, None, None).downsample('month')
with self.assertRaises(ValueError):
SparseDate(2012, 1, None).downsample('x')
with self.assertRaises(ValueError):
SparseDate(2012, 1, None).downsample('')
def parse_sparse_date(value):
"""Returns a SparseDate. A ValueError is raised if value is not a string
in one of the forms:
YYYY
YYYY-M[M]
YYYY-M[M]-D[D]
"""
match = _SPARSEDATE_RE.match(value)
if match:
year, month, day = match.groups()
year = int(year)
month = int(month) if month else None
day = int(day) if day else None
return SparseDate(year, month, day)
else:
msg = ('Badly formatted value [{0}]: require a sparse date in the '
"form 'YYYY', 'YYYY-M[M]' or 'YYYY-M[M]-D[D]'")
raise ValueError(msg.format(value))
def test_comparison(self):
# Equal
self.assertEqual(SparseDate(2012, None, None),
SparseDate(2012, None, None))
self.assertEqual(SparseDate(2012, 1, None), SparseDate(2012, 1, None))
self.assertEqual(SparseDate(2012, 1, 1), SparseDate(2012, 1, 1))
# Not equal
self.assertNotEqual(SparseDate(2012, None, None),
SparseDate(2011, None, None))
self.assertNotEqual(SparseDate(2012, 1, None),
SparseDate(2012, 2, None))
self.assertNotEqual(SparseDate(2012, 1, 1), SparseDate(2012, 1, 2))
# Greater
self.assertGreater(SparseDate(2013, None, None),
SparseDate(2012, None, None))
self.assertGreaterEqual(SparseDate(2012, None, None),
SparseDate(2012, None, None))
self.assertGreaterEqual(SparseDate(2013, None, None),
SparseDate(2012, None, None))
self.assertGreater(SparseDate(2012, 2, None),
SparseDate(2012, 1, None))
self.assertGreaterEqual(SparseDate(2012, 1, None),
SparseDate(2012, 1, None))
self.assertGreaterEqual(SparseDate(2012, 2, None),
SparseDate(2012, 1, None))
self.assertGreater(SparseDate(2012, 1, 2), SparseDate(2012, 1, 1))
self.assertGreaterEqual(SparseDate(2012, 1, 1), SparseDate(2012, 1, 1))
self.assertGreaterEqual(SparseDate(2012, 1, 2), SparseDate(2012, 1, 1))
# Less
self.assertLess(SparseDate(2012, None, None),
SparseDate(2013, None, None))
self.assertLessEqual(SparseDate(2012, None, None),
SparseDate(2012, None, None))
self.assertLessEqual(SparseDate(2012, None, None),
SparseDate(2013, None, None))
self.assertLess(SparseDate(2012, 1, None), SparseDate(2012, 2, None))
self.assertLessEqual(SparseDate(2012, 1, None),
SparseDate(2012, 1, None))
self.assertLessEqual(SparseDate(2012, 1, None),
SparseDate(2012, 2, None))
self.assertLess(SparseDate(2012, 1, 1), SparseDate(2012, 1, 2))
self.assertLessEqual(SparseDate(2012, 1, 1), SparseDate(2012, 1, 1))
self.assertLessEqual(SparseDate(2012, 1, 1), SparseDate(2012, 1, 2))
# Can't compare SparseDates of different resolutions
with self.assertRaises(InselectError):
SparseDate(2012, None, None) > SparseDate(2012, 1, None)
with self.assertRaises(InselectError):
SparseDate(2012, 1, None) > SparseDate(2012, 1, 1)
a = SparseDate(2012, 1, None)
with self.assertRaises(NotImplementedError):
a == ''
with self.assertRaises(NotImplementedError):
a == 1
with self.assertRaises(NotImplementedError):
a == None
def test_SparseDate(self):
self.assertRaises(ValueError, SparseDate, None, None, None)
self.assertEqual((2012, 1, 1), tuple(SparseDate(2012, 1, 1)))
self.assertEqual((2012, 12, 31), tuple(SparseDate(2012, 12, 31)))
# As a bool
self.assertTrue(SparseDate(2012, None, None))
self.assertTrue(SparseDate(2012, 1, None))
self.assertTrue(SparseDate(2012, 1, 2))
# Resolution
self.assertEqual('day', SparseDate(2012, 2, 29).resolution)
self.assertEqual('month', SparseDate(2012, 2, None).resolution)
self.assertEqual('year', SparseDate(2012, None, None).resolution)
# February in a leap year
self.assertEqual((2012, 2, 29), tuple(SparseDate(2012, 2, 29)))
# February in a non-leap year
self.assertRaises(ValueError, SparseDate, 2011, 2, 29)
# 0 should be treated as None
self.assertEqual((2012, None, None),
tuple(SparseDate(2012, None, None)))
self.assertEqual((2012, 1, None), tuple(SparseDate(2012, 1, None)))
self.assertEqual((2012, None, None), tuple(SparseDate(2012, 0, 0)))
self.assertEqual((2012, 1, None), tuple(SparseDate(2012, 1, 0)))
# Invalid month
self.assertRaises(ValueError, SparseDate, 2012, 0, 1)
self.assertRaises(ValueError, SparseDate, 2012, -1, 1)
self.assertRaises(ValueError, SparseDate, 2012, 13, 1)
# Invalid day
self.assertRaises(ValueError, SparseDate, 2012, 1, -1)
self.assertRaises(ValueError, SparseDate, 2012, 1, 32)
# Year not given
self.assertRaises(ValueError, SparseDate, None, 1, None)
self.assertRaises(ValueError, SparseDate, None, 1, 1)
# Day given but not month
self.assertRaises(ValueError, SparseDate, 2012, None, 1)
# Non-integer values
self.assertRaises(ValueError, SparseDate, 2012.0, None, None)
self.assertRaises(ValueError, SparseDate, 2012, 1.0, None)
self.assertRaises(ValueError, SparseDate, 2012, 1, 1.0)
def test_downsample_to_common(self):
a = SparseDate(2012, 6, 1)
self.assertEqual([SparseDate(2012, 6, 1)],
list(SparseDate.downsample_to_common([a])))
b = SparseDate(2012, 1, None)
self.assertEqual(
[SparseDate(2012, 6, None),
SparseDate(2012, 1, None)],
list(SparseDate.downsample_to_common([a, b])))
c = SparseDate(2012, None, None)
self.assertEqual([
SparseDate(2012, None, None),
SparseDate(2012, None, None),
SparseDate(2012, None, None)
], list(SparseDate.downsample_to_common([a, b, c])))
def test_as_date(self):
self.assertEqual(datetime.date(2012, 8, 1),
SparseDate(2012, 8, 1).as_date())
with self.assertRaises(InselectError):
SparseDate(2012, 8, None).as_date()
def test_range(self):
self.assertEqual(SparseDate(2012, 1, 1),
SparseDate(2012, None, None).earliest())
self.assertEqual(SparseDate(2012, 12, 31),
SparseDate(2012, None, None).latest())
self.assertEqual(SparseDate(2012, 2, 1),
SparseDate(2012, 2, None).earliest())
self.assertEqual(SparseDate(2012, 2, 29),
SparseDate(2012, 2, None).latest())
self.assertEqual(SparseDate(2012, 2, 5),
SparseDate(2012, 2, 5).earliest())
self.assertEqual(SparseDate(2012, 2, 5),
SparseDate(2012, 2, 5).latest())
def test_init(self):
self.assertRaises(ValueError, SparseDate, None, None, None)
self.assertEqual((2012, 1, 1), tuple(SparseDate(2012, 1, 1)))
self.assertEqual((2012, 12, 31), tuple(SparseDate(2012, 12, 31)))
def test_illegal_dates(self):
# February in a leap year
self.assertEqual((2012, 2, 29), tuple(SparseDate(2012, 2, 29)))
# February in a non-leap year
self.assertRaises(ValueError, SparseDate, 2011, 2, 29)
def test_resolution(self):
self.assertEqual('day', SparseDate(2012, 2, 29).resolution)
self.assertEqual('month', SparseDate(2012, 2, None).resolution)
self.assertEqual('year', SparseDate(2012, None, None).resolution)
def test_as_bool(self):
self.assertTrue(SparseDate(2012, None, None))
self.assertTrue(SparseDate(2012, 1, None))
self.assertTrue(SparseDate(2012, 1, 2))