def test_null(self):
i = Idx(0, "occ")
j = Idx(1, "occ")
a = Idx(0, "vir")
b = Idx(1, "vir")
L1 = Tensor([i, j, a, b], "L")
J1 = Tensor([j, b], "J")
S1j = Sigma(j)
S1b = Sigma(b)
T1 = ATerm(scalar=1, sums=[S1j, S1b], tensors=[L1, J1])
T2 = ATerm(scalar=1, sums=[S1j, S1b], tensors=[L1, J1])
self.assertTrue(T1.match(T2))
self.assertTrue(T2.match(T1))
def test_term_map(self):
s = 1
i = Idx(0, "occ")
j = Idx(1, "occ")
sums = [Sigma(i), Sigma(j)]
tensors = [Tensor([i, j], 'f')]
t1 = ATerm(s, sums, tensors)
sums = [Sigma(i), Sigma(j)]
tensors = [Tensor([j, i], 'f')]
t2 = ATerm(s, sums, tensors)
sums = [Sigma(j), Sigma(i)]
tensors = [Tensor([i, j], 'f')]
t3 = ATerm(s, sums, tensors)
self.assertTrue(t1.match(t2))
self.assertTrue(t1.match(t3))
self.assertTrue(t2.match(t3))
def test_term_map3(self):
s = 1
i = Idx(0, "occ")
a = Idx(0, "vir")
sums = [Sigma(i), Sigma(a)]
tensors = [Tensor([i, a], 'f'), Tensor([a, i], 't')]
t1 = ATerm(s, sums, tensors)
sums = [Sigma(i)]
t2 = ATerm(s, sums, tensors)
self.assertFalse(t1.match(t2))