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import pickle
import unittest
from decimal import Decimal
from agate import Table
from agate.data_types import Number, Text
class TestColumn(unittest.TestCase):
def setUp(self):
self.rows = (
(1, 2, 'a'),
(2, 3, 'b'),
(None, 4, 'c')
)
self.number_type = Number()
self.text_type = Text()
self.column_names = ['one', 'two', 'three']
self.column_types = [self.number_type, self.number_type, self.text_type]
self.table = Table(self.rows, self.column_names, self.column_types)
def test_index(self):
self.assertEqual(self.table.columns['one'].index, 0)
self.assertEqual(self.table.columns['two'].index, 1)
self.assertEqual(self.table.columns['three'].index, 2)
def test_name(self):
self.assertEqual(self.table.columns['one'].name, 'one')
def test_data_type(self):
self.assertIs(self.table.columns['one'].data_type, self.number_type)
def test_pickleable(self):
pickle.dumps(self.table.columns['one'])
def test_row_names(self):
table = Table(self.rows, self.column_names, self.column_types, row_names='three')
column = table.columns['one']
self.assertSequenceEqual(column._keys, ['a', 'b', 'c'])
self.assertEqual(column['b'], 2)
def test_keys(self):
table = Table(self.rows, self.column_names, self.column_types, row_names='three')
self.assertIs(self.table.columns['one'].keys(), None)
self.assertSequenceEqual(table.columns['one'].keys(), ['a', 'b', 'c'])
def test_values(self):
self.assertSequenceEqual(
self.table.columns['one'].values(),
[Decimal('1'), Decimal('2'), None]
)
def test_values_distinct(self):
rows = (
(1, 2),
(2, 3),
(None, 3)
)
table = Table(rows, ('one', 'two'), [self.number_type, self.number_type])
self.assertSequenceEqual(
table.columns['two'].values_distinct(),
[Decimal('2'), Decimal('3')]
)
def test_items(self):
table = Table(self.rows, self.column_names, self.column_types, row_names='three')
self.assertSequenceEqual(table.columns['one'].items(), [
('a', Decimal('1')),
('b', Decimal('2')),
('c', None)
])
def test_dict(self):
table = Table(self.rows, self.column_names, self.column_types, row_names='three')
self.assertDictEqual(table.columns['one'].dict(), {
'a': Decimal('1'),
'b': Decimal('2'),
'c': None
})
def test_values_without_nulls(self):
self.assertSequenceEqual(
self.table.columns['one'].values_without_nulls(),
[Decimal('1'), Decimal('2')]
)
def test_values_sorted(self):
rows = (
(2, 2, 'a'),
(None, 3, 'b'),
(1, 4, 'c')
)
table = Table(rows, self.column_names, self.column_types)
self.assertSequenceEqual(
table.columns['one'].values_sorted(),
[Decimal('1'), Decimal('2'), None]
)
def test_values_without_nulls_sorted(self):
rows = (
(2, 2, 'a'),
(None, 3, 'b'),
(1, 4, 'c')
)
table = Table(rows, self.column_names, self.column_types)
self.assertSequenceEqual(
table.columns['one'].values_without_nulls_sorted(),
[Decimal('1'), Decimal('2')]
)
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