def test_range_intersection(self):
a = NNR('a')
b = NNR(None)
self.assertEqual(
a.range_intersection([b]),
[]
)
self.assertEqual(
a.range_intersection([NNR('a')]),
[NNR('a')]
)
def test_range_difference(self):
a = NNR('a')
b = NNR(None)
self.assertEqual(
a.range_difference([NNR('a')]),
[]
)
self.assertEqual(
a.range_difference([b]),
[NNR('a')]
)
def test_range_relational(self):
a = NNR('a')
aa = NNR('a')
b = NNR(None)
self.assertTrue(a.issubset(aa))
self.assertFalse(a.issubset(b))
self.assertEqual(a, a)
self.assertEqual(a, aa)
self.assertNotEqual(a, b)
c = NR(None, None, 0)
self.assertFalse(a.issubset(c))
self.assertFalse(c.issubset(b))
self.assertNotEqual(a, c)
self.assertNotEqual(c, a)
def test_info_methods(self):
a = NNR('a')
self.assertTrue(a.isdiscrete())
self.assertTrue(a.isfinite())