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from agate import Table
from agate.data_types import Number, Text
from agate.testcase import AgateTestCase
class TestHomogenize(AgateTestCase):
def setUp(self):
self.rows = (
(0, 4, 'a'),
(1, 3, 'b'),
(None, 2, '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]
def test_homogenize_column_name(self):
table = Table(self.rows, self.column_names, self.column_types)
compare_values = range(3)
homogenized = table.homogenize('one', compare_values, [3, 'd'])
rows = (
(0, 4, 'a'),
(1, 3, 'b'),
(None, 2, 'c'),
(2, 3, 'd')
)
homogenized.print_table()
self.assertColumnNames(homogenized, self.column_names)
self.assertColumnTypes(homogenized, [Number, Number, Text])
self.assertRows(homogenized, rows)
def test_homogenize_default_row(self):
table = Table(self.rows, self.column_names, self.column_types)
compare_values = [0, 1, 2]
homogenized = table.homogenize(['one'], compare_values)
rows = (
(0, 4, 'a'),
(1, 3, 'b'),
(None, 2, 'c'),
(2, None, None)
)
homogenized.print_table()
self.assertColumnNames(homogenized, self.column_names)
self.assertColumnTypes(homogenized, [Number, Number, Text])
self.assertRows(homogenized, rows)
def test_homogenize_multiple_columns(self):
table = Table(self.rows, self.column_names, self.column_types)
def column_two(count):
return [chr(ord('a') + c) for c in range(count)]
homogenized = table.homogenize(['one', 'three'], zip(range(3), column_two(3)), [5])
rows = (
(0, 4, 'a'),
(1, 3, 'b'),
(None, 2, 'c'),
(2, 5, 'c')
)
homogenized.print_table()
self.assertColumnNames(homogenized, self.column_names)
self.assertColumnTypes(homogenized, [Number, Number, Text])
self.assertRows(homogenized, rows)
def test_homogenize_lambda_default(self):
table = Table(self.rows, self.column_names, self.column_types)
def default_row(d):
return [d[0], d[0] * 2, d[1]]
def column_two(count):
return [chr(ord('a') + c) for c in range(count)]
homogenized = table.homogenize(['one', 'three'], zip(range(3), column_two(3)), default_row)
rows = (
(0, 4, 'a'),
(1, 3, 'b'),
(None, 2, 'c'),
(2, 4, 'c')
)
homogenized.print_table()
self.assertColumnNames(homogenized, self.column_names)
self.assertColumnTypes(homogenized, [Number, Number, Text])
self.assertRows(homogenized, rows)
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