def test_one_or_more_children_deriv():
schema = After(
Choice(
EMPTY,
OneOrMore(
Element(
Name({'ns': ''}, 'bar'),
EMPTY))),
EMPTY)
doc = ('x', ElementNode(QName('', 'bar'), tuple(), ()))
deriv = strip_children_deriv(schema, doc)
assert str(children_deriv(schema, doc)) == str(deriv)
x = child_deriv(schema, 'x')
y = child_deriv(x, doc[1])
assert str(strip_children_deriv(schema, doc)) == str(y)
deriv = text_deriv(schema, 'x')
assert str(child_deriv(schema, 'x')) == str(deriv)
p1 = Choice(
EMPTY,
OneOrMore(
Element(
Name({'ns': ''}, 'bar'),
EMPTY)))
p2 = EMPTY
deriv = after(text_deriv(p1, 'x'), p2)
assert str(text_deriv(schema, 'x')) == str(deriv)
p11 = EMPTY
p12 = OneOrMore(
Element(
Name({'ns': ''}, 'bar'),
EMPTY))
deriv = choice(text_deriv(p11, 'x'), text_deriv(p12, 'x'))
assert str(text_deriv(p1, 'x')) == str(deriv)
assert str(text_deriv(p11, 'x')) == str(NotAllowed())
p121 = Element(
Name({'ns': ''}, 'bar'),
EMPTY)
deriv = group(text_deriv(p121, 'x'), choice(OneOrMore(p121), EMPTY))
assert str(text_deriv(p12, 'x')) == str(deriv)
assert str(text_deriv(p121, 'x')) == str(NotAllowed())
def test_children_deriv_interleave():
schema = After(
Interleave(
Element(
Name({'ns': ''}, 'bar'),
EMPTY),
TEXT),
EMPTY)
doc = tuple()
deriv = children_deriv(schema, ('',))
assert str(children_deriv(schema, doc)) == str(deriv)
x = child_deriv(schema, '')
print("x is", x)
deriv = choice(schema, x) if whitespace('') else x
assert str(children_deriv(schema, '')) == str(deriv)
deriv = text_deriv(schema, '')
assert str(child_deriv(schema, '')) == str(deriv)
p1 = Interleave(
Element(
Name({'ns': ''}, 'bar'),
EMPTY),
TEXT)
p2 = EMPTY
deriv = After(text_deriv(p1, ''), p2)
assert str(text_deriv(schema, '')) == str(deriv)
p11 = Element(
Name({'ns': ''}, 'bar'),
EMPTY)
p12 = TEXT
deriv = choice(
interleave(text_deriv(p11, ''), p12),
interleave(p11, text_deriv(p12, '')))
assert str(text_deriv(p1, '')) == str(deriv)
deriv = NotAllowed()
assert str(text_deriv(p11, '')) == str(deriv)
deriv = NotAllowed()
assert str(interleave(NotAllowed(), p12)) == str(deriv)
deriv = TEXT
assert str(text_deriv(p12, '')) == str(deriv)
assert whitespace('') is True
schema = After(
Interleave(
Element(
Name({'ns': ''}, 'bar'),
EMPTY),
TEXT),
EMPTY)
deriv = Choice(
After(
Interleave(
Element(
Name({'ns': ''}, 'bar'),
EMPTY),
TEXT),
EMPTY),
After(
Interleave(
Element(
Name({'ns': ''}, 'bar'),
EMPTY),
TEXT),
EMPTY))
print('is', children_deriv(schema, doc))
print('should be', deriv)
assert str(children_deriv(schema, doc)) == str(deriv)
