def test_union(self):
C = fuzz.FuzzySet()
C.add('a', 1.0)
C.add('b', 0.8)
C.add('c', 0.8)
C.add('d', 0.6)
self.assertEqual(self.A | self.B, C)
D = fuzz.FuzzySet()
D.add('a', 1.0)
D.add('b', 0.9)
D.add('c', 0.84)
D.add('d', 0.6)
self.assertEqual(self.A.union(self.B, fuzz.FuzzySet.NORM_ALGEBRAIC), D)
def test_complement(self):
D = fuzz.FuzzySet()
D.add('b', 0.2)
D.add('c', 0.8)
D.add('d', 0.4)
D.add('e', 1.0)
self.assertEqual(self.B.complement(), D)
def test_pop(self):
A = [
fuzz.FuzzyElement('a', 1.0),
fuzz.FuzzyElement('c', 0.8),
fuzz.FuzzyElement('b', 0.5)
]
self.assertTrue(self.A.pop() in A)
self.assertTrue(self.A.pop() in A)
self.assertTrue(self.A.pop() in A)
self.assertEqual(self.A, fuzz.FuzzySet())
def test_disjoint(self):
self.assertFalse(self.A.isdisjoint(self.B))
self.assertFalse(self.B.isdisjoint(self.A))
C = fuzz.FuzzySet(['e', 'f'])
self.assertTrue(self.A.isdisjoint(C))
self.assertTrue(self.B.isdisjoint(C))
def test_clear(self):
self.A.clear()
self.assertEqual(self.A, fuzz.FuzzySet())
def test_to_fuzzy_set(self):
F = fuzz.FuzzySet()
F.add(1.5, 0.25)
F.add(6.0, 0.8)
self.assertEqual(self.X.to_fuzzy_set([1.5, 6.0]), F)