def test_basic(self):
a = QN('a')
self.assertEqual(a.qn, ('a', ))
self.assertEqual(str(a), 'a')
self.assertEqual(a.ssf(), 'a')
self.assertEqual(a.ast().id, 'a')
self.assertFalse(a.is_composite())
with self.assertRaises(ValueError):
_ = a.parent
a_b = QN(a, attr='b')
self.assertEqual(a_b.qn, (a, 'b'))
self.assertEqual(str(a_b), 'a.b')
self.assertEqual(a_b.ssf(), 'a_b')
self.assertEqual(a_b.ast().value.id, 'a')
self.assertEqual(a_b.ast().attr, 'b')
self.assertTrue(a_b.is_composite())
self.assertEqual(a_b.parent.qn, ('a', ))
def test_literals(self):
a = QN('a')
a_sub_str_b = QN(a, subscript=QN(qual_names.StringLiteral('b')))
a_sub_b = QN(a, subscript=QN('b'))
self.assertNotEqual(a_sub_str_b, a_sub_b)
self.assertNotEqual(hash(a_sub_str_b), hash(a_sub_b))
a_sub_three = QN(a, subscript=QN(qual_names.NumberLiteral(3)))
self.assertEqual(a_sub_three.ast().slice.value.n, 3)
def test_subscripts(self):
a = QN('a')
b = QN('b')
a_sub_b = QN(a, subscript=b)
self.assertEqual(a_sub_b.qn, (a, b))
self.assertEqual(str(a_sub_b), 'a[b]')
self.assertEqual(a_sub_b.ssf(), 'a_sub_b')
self.assertEqual(a_sub_b.ast().value.id, 'a')
self.assertEqual(a_sub_b.ast().slice.value.id, 'b')
self.assertTrue(a_sub_b.is_composite())
self.assertTrue(a_sub_b.has_subscript())
self.assertEqual(a_sub_b.parent.qn, ('a', ))
c = QN('c')
b_sub_c = QN(b, subscript=c)
a_sub_b_sub_c = QN(a, subscript=b_sub_c)
self.assertEqual(a_sub_b_sub_c.qn, (a, b_sub_c))
self.assertTrue(a_sub_b.is_composite())
self.assertTrue(a_sub_b_sub_c.is_composite())
self.assertTrue(a_sub_b.has_subscript())
self.assertTrue(a_sub_b_sub_c.has_subscript())
self.assertEqual(b_sub_c.qn, (b, c))
self.assertEqual(str(a_sub_b_sub_c), 'a[b[c]]')
self.assertEqual(a_sub_b_sub_c.ssf(), 'a_sub_b_sub_c')
self.assertEqual(a_sub_b_sub_c.ast().value.id, 'a')
self.assertEqual(a_sub_b_sub_c.ast().slice.value.value.id, 'b')
self.assertEqual(a_sub_b_sub_c.ast().slice.value.slice.value.id, 'c')
self.assertEqual(b_sub_c.ast().slice.value.id, 'c')
self.assertEqual(a_sub_b_sub_c.parent.qn, ('a', ))
with self.assertRaises(ValueError):
QN('a', 'b')