def test_sorting_with_cmp():
@thesefy
class Person(object): pass
query = these((who, who2) for who in Person for who2 in Person)
# Sort with tokens + filters
sorted_parts = list(sorted(query.tokens + query.filters,
key=functools.cmp_to_key(translation.cmp)))
_k = functools.cmp_to_key(translation.cmp)
for i, part in enumerate(sorted_parts):
if i < len(sorted_parts) + 1:
for after in sorted_parts[i+1:]:
assert _k(part) <= _k(after), (part, after)
# Now sort with filters + tokens
sorted_parts = list(sorted(query.filters + query.tokens,
key=functools.cmp_to_key(translation.cmp)))
_k = functools.cmp_to_key(translation.cmp)
for i, part in enumerate(sorted_parts):
if i < len(sorted_parts) + 1:
for after in sorted_parts[i+1:]:
assert _k(part) <= _k(after), (part, after)
def test_cotraverse_expression():
from xoutil.compat import zip
from xotl.ql.expressions import is_a
from xotl.ql.translation import cotraverse_expression
@thesefy
class Person(object):
pass
@thesefy
class Partnership(object):
pass
query = these((person, partner)
for person, partner in zip(Person, Person)
for rel in Partnership
if (rel.subject == person) & (rel.obj == partner))
filters = list(query.filters)
person, partner = query.selection
person_is_a_person = is_a(person, Person)
partner_is_a_person = is_a(partner, Person)
rel_token = query.tokens[-1]
rel_subject = rel_token.expression.subject
rel_obj = rel_token.expression.obj
with context(UNPROXIFING_CONTEXT):
assert person != partner
assert person_is_a_person in filters
assert partner_is_a_person in filters
expected_terms_order = [person, partner, rel_token.expression, rel_subject, person, rel_obj, partner]
assert expected_terms_order == list(cotraverse_expression(query))
assert UNPROXIFING_CONTEXT not in context
def test_get_term_signature():
assert get_term_signature(this.a) == ((), (None, 'a'))
query = these(child
for parent in this('parent')
for child in parent.children)
term = query.selection
assert get_term_signature(term) == (('parent', 'children'), ('parent', 'children'))
term = query.tokens[0].expression
assert get_term_signature(term) == (('parent', ), ('parent', ))
term = query.tokens[1].expression
assert get_term_signature(term) == (('parent', 'children'), ('parent', 'children'))