spaCy/spacy/tests/parser/test_parse.py
Matthew Honnibal 8cf097ca88 Redesign training to integrate NN components
* Obsolete .parser, .entity etc names in favour of .pipeline
* Components no longer create models on initialization
* Models created by loading method (from_disk(), from_bytes() etc), or
    .begin_training()
* Add .predict(), .set_annotations() methods in components
* Pass state through pipeline, to allow components to share information
    more flexibly.
2017-05-16 16:17:30 +02:00

152 lines
4.7 KiB
Python

# coding: utf-8
from __future__ import unicode_literals
from ..util import get_doc, apply_transition_sequence
import pytest
def test_parser_root(en_tokenizer):
text = "i don't have other assistance"
heads = [3, 2, 1, 0, 1, -2]
deps = ['nsubj', 'aux', 'neg', 'ROOT', 'amod', 'dobj']
tokens = en_tokenizer(text)
doc = get_doc(tokens.vocab, [t.text for t in tokens], heads=heads, deps=deps)
for t in doc:
assert t.dep != 0, t.text
@pytest.mark.xfail
@pytest.mark.parametrize('text', ["Hello"])
def test_parser_parse_one_word_sentence(en_tokenizer, en_parser, text):
tokens = en_tokenizer(text)
doc = get_doc(tokens.vocab, [t.text for t in tokens], heads=[0], deps=['ROOT'])
assert len(doc) == 1
with en_parser.step_through(doc) as _:
pass
assert doc[0].dep != 0
@pytest.mark.xfail
def test_parser_initial(en_tokenizer, en_parser):
text = "I ate the pizza with anchovies."
heads = [1, 0, 1, -2, -3, -1, -5]
transition = ['L-nsubj', 'S', 'L-det']
tokens = en_tokenizer(text)
apply_transition_sequence(en_parser, tokens, transition)
assert tokens[0].head.i == 1
assert tokens[1].head.i == 1
assert tokens[2].head.i == 3
assert tokens[3].head.i == 3
def test_parser_parse_subtrees(en_tokenizer, en_parser):
text = "The four wheels on the bus turned quickly"
heads = [2, 1, 4, -1, 1, -2, 0, -1]
tokens = en_tokenizer(text)
doc = get_doc(tokens.vocab, [t.text for t in tokens], heads=heads)
assert len(list(doc[2].lefts)) == 2
assert len(list(doc[2].rights)) == 1
assert len(list(doc[2].children)) == 3
assert len(list(doc[5].lefts)) == 1
assert len(list(doc[5].rights)) == 0
assert len(list(doc[5].children)) == 1
assert len(list(doc[2].subtree)) == 6
def test_parser_merge_pp(en_tokenizer):
text = "A phrase with another phrase occurs"
heads = [1, 4, -1, 1, -2, 0]
deps = ['det', 'nsubj', 'prep', 'det', 'pobj', 'ROOT']
tags = ['DT', 'NN', 'IN', 'DT', 'NN', 'VBZ']
tokens = en_tokenizer(text)
doc = get_doc(tokens.vocab, [t.text for t in tokens], deps=deps, heads=heads, tags=tags)
nps = [(np[0].idx, np[-1].idx + len(np[-1]), np.lemma_) for np in doc.noun_chunks]
for start, end, lemma in nps:
doc.merge(start, end, label='NP', lemma=lemma)
assert doc[0].text == 'A phrase'
assert doc[1].text == 'with'
assert doc[2].text == 'another phrase'
assert doc[3].text == 'occurs'
@pytest.mark.xfail
def test_parser_arc_eager_finalize_state(en_tokenizer, en_parser):
text = "a b c d e"
# right branching
transition = ['R-nsubj', 'D', 'R-nsubj', 'R-nsubj', 'D', 'R-ROOT']
tokens = en_tokenizer(text)
apply_transition_sequence(en_parser, tokens, transition)
assert tokens[0].n_lefts == 0
assert tokens[0].n_rights == 2
assert tokens[0].left_edge.i == 0
assert tokens[0].right_edge.i == 4
assert tokens[0].head.i == 0
assert tokens[1].n_lefts == 0
assert tokens[1].n_rights == 0
assert tokens[1].left_edge.i == 1
assert tokens[1].right_edge.i == 1
assert tokens[1].head.i == 0
assert tokens[2].n_lefts == 0
assert tokens[2].n_rights == 2
assert tokens[2].left_edge.i == 2
assert tokens[2].right_edge.i == 4
assert tokens[2].head.i == 0
assert tokens[3].n_lefts == 0
assert tokens[3].n_rights == 0
assert tokens[3].left_edge.i == 3
assert tokens[3].right_edge.i == 3
assert tokens[3].head.i == 2
assert tokens[4].n_lefts == 0
assert tokens[4].n_rights == 0
assert tokens[4].left_edge.i == 4
assert tokens[4].right_edge.i == 4
assert tokens[4].head.i == 2
# left branching
transition = ['S', 'S', 'S', 'L-nsubj','L-nsubj','L-nsubj', 'L-nsubj']
tokens = en_tokenizer(text)
apply_transition_sequence(en_parser, tokens, transition)
assert tokens[0].n_lefts == 0
assert tokens[0].n_rights == 0
assert tokens[0].left_edge.i == 0
assert tokens[0].right_edge.i == 0
assert tokens[0].head.i == 4
assert tokens[1].n_lefts == 0
assert tokens[1].n_rights == 0
assert tokens[1].left_edge.i == 1
assert tokens[1].right_edge.i == 1
assert tokens[1].head.i == 4
assert tokens[2].n_lefts == 0
assert tokens[2].n_rights == 0
assert tokens[2].left_edge.i == 2
assert tokens[2].right_edge.i == 2
assert tokens[2].head.i == 4
assert tokens[3].n_lefts == 0
assert tokens[3].n_rights == 0
assert tokens[3].left_edge.i == 3
assert tokens[3].right_edge.i == 3
assert tokens[3].head.i == 4
assert tokens[4].n_lefts == 4
assert tokens[4].n_rights == 0
assert tokens[4].left_edge.i == 0
assert tokens[4].right_edge.i == 4
assert tokens[4].head.i == 4