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import ddt
import unittest
@ddt.ddt
class TestNamedData(unittest.TestCase):
class NonTrivialClass(object):
pass
@ddt.named_data(
['Single', 0, 1]
)
def test_single_named_value(self, value1, value2):
self.assertGreater(value2, value1)
@ddt.named_data(
['1st', 1, 2],
('2nd', 3, 4)
)
def test_multiple_named_value_seqs(self, value1, value2):
self.assertGreater(value2, value1)
@ddt.named_data(
dict(name='1st', value2=1, value1=0),
{'name': '2nd', 'value2': 1, 'value1': 0}
)
def test_multiple_named_value_dicts(self, value1, value2):
self.assertGreater(value2, value1)
@ddt.named_data(
dict(name='1st', value2=1, value1=0),
('2nd', 0, 1)
)
def test_multiple_named_value_mixed(self, value1, value2):
self.assertGreater(value2, value1)
@ddt.named_data(
['Passes', NonTrivialClass(), True],
('Fails', 1, False)
)
def test_seq_with_nontrivial_type(self, value, passes):
if passes:
self.assertIsInstance(value, self.NonTrivialClass)
else:
self.assertNotIsInstance(value, self.NonTrivialClass)
@ddt.named_data(
{'name': 'Passes', 'value': NonTrivialClass(), 'passes': True},
{'name': 'Fails', 'value': 1, 'passes': False}
)
def test_dict_with_nontrivial_type(self, value, passes):
if passes:
self.assertIsInstance(value, self.NonTrivialClass)
else:
self.assertNotIsInstance(value, self.NonTrivialClass)
def test_missing_name_dict(self):
with self.assertRaises(KeyError):
@ddt.named_data(
{'not_a_name': 'oops', 'value': 1}
)
def _internal_test(value):
pass
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