spaCy/spacy/tests/parser/test_parse_navigate.py

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from __future__ import unicode_literals
from os import path
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import io
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import pytest
@pytest.fixture
def sun_text():
with io.open(path.join(path.dirname(__file__), '..', 'sun.txt'), 'r',
encoding='utf8') as file_:
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text = file_.read()
return text
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@pytest.mark.models
def test_consistency(EN, sun_text):
tokens = EN(sun_text)
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for head in tokens:
for child in head.lefts:
assert child.head is head
for child in head.rights:
assert child.head is head
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@pytest.mark.models
def test_child_consistency(EN, sun_text):
tokens = EN(sun_text)
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lefts = {}
rights = {}
for head in tokens:
assert head.i not in lefts
lefts[head.i] = set()
for left in head.lefts:
lefts[head.i].add(left.i)
assert head.i not in rights
rights[head.i] = set()
for right in head.rights:
rights[head.i].add(right.i)
for head in tokens:
assert head.n_rights == len(rights[head.i])
assert head.n_lefts == len(lefts[head.i])
for child in tokens:
if child.i < child.head.i:
assert child.i in lefts[child.head.i]
assert child.i not in rights[child.head.i]
lefts[child.head.i].remove(child.i)
elif child.i > child.head.i:
assert child.i in rights[child.head.i]
assert child.i not in lefts[child.head.i]
rights[child.head.i].remove(child.i)
for head_index, children in lefts.items():
assert not children
for head_index, children in rights.items():
assert not children
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@pytest.mark.models
def test_edges(EN, sun_text):
tokens = EN(sun_text)
for token in tokens:
subtree = list(token.subtree)
debug = '\t'.join((token.orth_, token.left_edge.orth_, subtree[0].orth_))
assert token.left_edge == subtree[0], debug
debug = '\t'.join((token.orth_, token.right_edge.orth_, subtree[-1].orth_, token.right_edge.head.orth_))
assert token.right_edge == subtree[-1], debug