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_one_or_more_multiple():
schema = Element(
Name({'ns': ''}, 'foo'),
OneOrMore(
Element(
Name({'ns': ''}, 'bar'),
EMPTY)))
doc = ElementNode(
QName('', 'foo'), (), (
ElementNode(QName('', 'bar'), (), ()),
ElementNode(QName('', 'bar'), (), ()),
ElementNode(QName('', 'bar'), (), ())))
qn = QName('', 'foo')
d1 = start_tag_open_deriv(schema, qn)
m1 = After(
OneOrMore(
Element(
Name({'ns': ''}, 'bar'),
EMPTY)),
EMPTY)
assert str(d1) == str(m1)
atts = ()
d2 = atts_deriv(d1, atts)
m2 = m1
assert str(d2) == str(m2)
d3 = start_tag_close_deriv(d2)
m21 = OneOrMore(
Element(
Name({'ns': ''}, 'bar'),
EMPTY))
m211 = Element(
Name({'ns': ''}, 'bar'),
EMPTY)
m22 = EMPTY
m3_1 = after(start_tag_close_deriv(m21), m22)
assert str(m3_1) == str(d3)
m3_2 = after(start_tag_close_deriv(m21), EMPTY)
assert str(m3_2) == str(d3)
m3_3 = after(one_or_more(start_tag_close_deriv(m211)), EMPTY)
assert str(m3_3) == str(d3)
m3_4 = after(one_or_more(m211), EMPTY)
m3_4 = After(OneOrMore(m211), EMPTY)
m3_4 = After(
OneOrMore(
Element(
Name({'ns': ''}, 'bar'),
EMPTY)),
EMPTY)
assert str(d3) == str(m3_4)
children = (
ElementNode(QName('', 'bar'), (), ()),
ElementNode(QName('', 'bar'), (), ()),
ElementNode(QName('', 'bar'), (), ()))
d4 = children_deriv(d3, children)
m4_1 = children_deriv(m3_4, children)
assert str(d4) == str(m4_1)
m4_2 = strip_children_deriv(m3_4, children)
assert str(d4) == str(m4_2)
child_0 = ElementNode(QName('', 'bar'), (), ())
m4_3 = child_deriv(m3_4, child_0)
child_0_qn = QName('', 'bar')
m41_1 = start_tag_open_deriv(m3_4, child_0_qn)
m31 = OneOrMore(
Element(
Name({'ns': ''}, 'bar'),
EMPTY))
m32 = EMPTY
m41_2 = apply_after(
partial(flip(after), m32), start_tag_open_deriv(m31, child_0_qn))
assert str(m41_1) == str(m41_2)
m5_1 = start_tag_open_deriv(m31, child_0_qn)
m311 = Element(
Name({'ns': ''}, 'bar'),
EMPTY)
m5_2 = apply_after(
partial(flip(group), choice(OneOrMore(m311), EMPTY)),
start_tag_open_deriv(m311, child_0_qn))
assert str(m5_1) == str(m5_2)
assert str(d4) == str(m4_3)
assert str(child_deriv(schema, doc)) == str(end_tag_deriv(d4))
assert nullable(child_deriv(schema, doc)) is True