def test_is_a_partnership_is_not_forgotten():
from xoutil.compat import zip
with bubbling() as current:
next((person, partner)
for person, partner in zip(this('person'),
this('partner'))
for rel in this('relation')
if rel.type == 'partnership'
if (rel.subject == person) & (rel.object == partner))
parts = current.bubble.parts
tokens = current.bubble.tokens
assert len(parts) == 2 # Only the 2 filters
tokens = [tk.expression for tk in tokens]
def ok(x):
assert str(x) == str(parts.pop(-1))
person = this('person')
partner = this('partner')
rel = this('relation')
assert person in tokens
assert partner in tokens
assert rel in tokens
ok((rel.subject == person) & (rel.object == partner))
ok(rel.type == 'partnership')
with pytest.raises(IndexError):
ok(None)
def test_worst_case_must_have_3_filters_and_3_tokens():
from xoutil.compat import zip
with bubbling() as current:
next(person
for person, partner in zip(this('person'),
this('partner'))
for rel in this('relation')
if rel.type == 'partnership'
if rel.subject == person
if rel.object == partner
if partner.age > 32)
parts = current.bubble.parts
tokens = current.bubble.tokens
assert len(parts) == 4
tokens = [tk.expression for tk in tokens]
def ok(x):
assert str(x) == str(parts.pop(-1))
person = this('person')
partner = this('partner')
rel = this('relation')
assert person in tokens
assert partner in tokens
assert rel in tokens
ok(partner.age > 32)
ok(rel.object == partner)
ok(rel.subject == person)
ok(rel.type == 'partnership')
with pytest.raises(IndexError):
ok(None)
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
