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import unittest
from foil.counting import count_by
class TestCounting(unittest.TestCase):
def test_count_by(self):
field_name = 'field'
records = [{field_name: 'a'}, {field_name: 'b'}, {field_name: 'a'}]
expected = {'a': 2, 'b': 1}
result = count_by(records, field_name)
self.assertDictEqual(expected, result)
portfoliome /
foil
