django-clickhouse/tests/test_compatibility.py
2020-02-07 13:05:19 +05:00

53 lines
1.9 KiB
Python

import sys
from unittest import skipIf
from django.test import TestCase
from django_clickhouse.compatibility import namedtuple
class NamedTupleTest(TestCase):
def test_defaults(self):
TestTuple = namedtuple('TestTuple', ('a', 'b', 'c'), defaults=[3])
self.assertTupleEqual((1, 2, 3), tuple(TestTuple(1, b=2)))
self.assertTupleEqual((1, 2, 4), tuple(TestTuple(1, 2, 4)))
self.assertTupleEqual((1, 2, 4), tuple(TestTuple(a=1, b=2, c=4)))
@skipIf(sys.version_info < (3, 7),
"On python < 3.7 this error is not raised, as not given defaults are filled by None")
def test_no_required_value(self):
TestTuple = namedtuple('TestTuple', ('a', 'b', 'c'), defaults=[3])
with self.assertRaises(TypeError):
TestTuple(b=1, c=4)
def test_duplicate_value(self):
TestTuple = namedtuple('TestTuple', ('a', 'b', 'c'), defaults=[3])
with self.assertRaises(TypeError):
TestTuple(1, 2, 3, c=4)
def test_different_defaults(self):
# Test that 2 tuple type defaults don't affect each other
TestTuple = namedtuple('TestTuple', ('a', 'b', 'c'), defaults=[3])
OtherTuple = namedtuple('TestTuple', ('a', 'b', 'c'), defaults=[4])
t1 = TestTuple(a=1, b=2)
t2 = OtherTuple(a=3, b=4)
self.assertTupleEqual((1, 2, 3), tuple(t1))
self.assertTupleEqual((3, 4, 4), tuple(t2))
def test_defaults_cache(self):
# Test that 2 tuple instances don't affect each other's defaults
TestTuple = namedtuple('TestTuple', ('a', 'b', 'c'), defaults=[3])
self.assertTupleEqual((1, 2, 4), tuple(TestTuple(a=1, b=2, c=4)))
self.assertTupleEqual((1, 2, 3), tuple(TestTuple(a=1, b=2)))
def test_equal(self):
TestTuple = namedtuple('TestTuple', ('a', 'b', 'c'))
t1 = TestTuple(1, 2, 3)
t2 = TestTuple(1, 2, 3)
self.assertEqual(t1, t2)
self.assertEqual((1, 2, 3), t1)