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46 lines
1.8 KiB
Python
46 lines
1.8 KiB
Python
from unittest import TestCase
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from django_clickhouse.compatibility import namedtuple
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class NamedTupleTest(TestCase):
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def test_defaults(self):
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TestTuple = namedtuple('TestTuple', ('a', 'b', 'c'), defaults={'c': 3})
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self.assertTupleEqual((1, 2, 3), tuple(TestTuple(1, b=2)))
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self.assertTupleEqual((1, 2, 4), tuple(TestTuple(1, 2, 4)))
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self.assertTupleEqual((1, 2, 4), tuple(TestTuple(a=1, b=2, c=4)))
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def test_exceptions(self):
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TestTuple = namedtuple('TestTuple', ('a', 'b', 'c'), defaults={'c': 3})
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# BUG On python < 3.7 this error is not raised, as not given defaults are filled by None
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# with self.assertRaises(TypeError):
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# TestTuple(b=1, c=4)
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with self.assertRaises(TypeError):
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TestTuple(1, 2, 3, c=4)
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def test_different_defaults(self):
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# Test that 2 tuple type defaults don't affect each other
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TestTuple = namedtuple('TestTuple', ('a', 'b', 'c'), defaults={'c': 3})
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OtherTuple = namedtuple('TestTuple', ('a', 'b', 'c'), defaults={'c': 4})
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t1 = TestTuple(a=1, b=2)
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t2 = OtherTuple(a=3, b=4)
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self.assertTupleEqual((1, 2, 3), tuple(t1))
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self.assertTupleEqual((3, 4, 4), tuple(t2))
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def test_defaults_cache(self):
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# Test that 2 tuple instances don't affect each other's defaults
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TestTuple = namedtuple('TestTuple', ('a', 'b', 'c'), defaults={'c': 3})
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self.assertTupleEqual((1, 2, 4), tuple(TestTuple(a=1, b=2, c=4)))
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self.assertTupleEqual((1, 2, 3), tuple(TestTuple(a=1, b=2)))
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def test_equal(self):
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TestTuple = namedtuple('TestTuple', ('a', 'b', 'c'))
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t1 = TestTuple(1, 2, 3)
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t2 = TestTuple(1, 2, 3)
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self.assertEqual(t1, t2)
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self.assertEqual((1, 2, 3), t1)
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