spaCy/spacy/tests/parser/test_sbd.py
Wolfgang Seeker d99a9cbce9 different handling of space tokens
space tokens are now always attached to the previous non-space token
there are two exceptions:
leading space tokens are attached to the first following non-space token
in input that consists exclusively of space tokens, the last space token
is the head of all others.
2016-04-13 15:28:28 +02:00

123 lines
5.2 KiB
Python

from __future__ import unicode_literals
import pytest
@pytest.mark.models
def test_single_period(EN):
string = 'A test sentence.'
words = EN(string)
assert len(words) == 4
assert len(list(words.sents)) == 1
assert sum(len(sent) for sent in words.sents) == len(words)
@pytest.mark.models
def test_single_no_period(EN):
string = 'A test sentence'
words = EN(string)
assert len(words) == 3
assert len(list(words.sents)) == 1
assert sum(len(sent) for sent in words.sents) == len(words)
@pytest.mark.models
def test_single_exclamation(EN):
string = 'A test sentence!'
words = EN(string)
assert len(words) == 4
assert len(list(words.sents)) == 1
assert sum(len(sent) for sent in words.sents) == len(words)
@pytest.mark.models
def test_single_question(EN):
string = 'A test sentence?'
words = EN(string, tag=False, parse=False)
assert len(words) == 4
assert len(list(words.sents)) == 1
assert sum(len(sent) for sent in words.sents) == len(words)
@pytest.mark.models
def test_sentence_breaks_no_space(EN):
doc = EN.tokenizer.tokens_from_list('This is a sentence . This is another one .'.split(' '))
EN.tagger(doc)
with EN.parser.step_through(doc) as stepwise:
# stack empty, automatic Shift (This)
assert EN.parser.moves.is_valid(stepwise.stcls,'B-ROOT')
stepwise.transition('L-nsubj') # attach This
# stack empty, automatic Shift (is)
assert EN.parser.moves.is_valid(stepwise.stcls,'B-ROOT')
stepwise.transition('S') # shift a
assert EN.parser.moves.is_valid(stepwise.stcls,'B-ROOT')
stepwise.transition('L-det') # attach a
assert not EN.parser.moves.is_valid(stepwise.stcls,'B-ROOT')
stepwise.transition('R-attr') # attach sentence
stepwise.transition('D') # remove sentence
assert not EN.parser.moves.is_valid(stepwise.stcls,'B-ROOT')
stepwise.transition('R-punct') # attach .
assert EN.parser.moves.is_valid(stepwise.stcls,'B-ROOT')
stepwise.transition('B-ROOT') # set sentence start on This
# automatic reduction of the stack, automatic Shift to start second sentence
assert EN.parser.moves.is_valid(stepwise.stcls,'B-ROOT')
stepwise.transition('L-nsubj') # attach This
# stack empty, automatic Shift (is)
assert EN.parser.moves.is_valid(stepwise.stcls,'B-ROOT')
stepwise.transition('S') # shift another
assert EN.parser.moves.is_valid(stepwise.stcls,'B-ROOT')
stepwise.transition('L-attr') # attach another
assert not EN.parser.moves.is_valid(stepwise.stcls,'B-ROOT')
stepwise.transition('R-attr') # attach one
assert EN.parser.moves.is_valid(stepwise.stcls,'B-ROOT')
stepwise.transition('D') # remove one
assert not EN.parser.moves.is_valid(stepwise.stcls,'B-ROOT')
stepwise.transition('R-punct') # attach .
# buffer empty, automatic cleanup
assert len(list(doc.sents)) == 2
for tok in doc:
assert tok.dep != 0 or tok.is_space
assert [ tok.head.i for tok in doc ] == [1,1,3,1,1,6,6,8,6,6]
@pytest.mark.models
def test_sentence_breaks_with_space(EN):
doc = EN.tokenizer.tokens_from_list('\t This is \n a sentence \n \n . \n \t \n This is another \t one .'.split(' '))
EN.tagger(doc)
with EN.parser.step_through(doc) as stepwise:
# stack empty, automatic Shift (This)
assert EN.parser.moves.is_valid(stepwise.stcls,'B-ROOT')
stepwise.transition('L-nsubj') # attach This
# stack empty, automatic Shift (is)
assert EN.parser.moves.is_valid(stepwise.stcls,'B-ROOT')
stepwise.transition('S') # shift a
assert EN.parser.moves.is_valid(stepwise.stcls,'B-ROOT')
stepwise.transition('L-det') # attach a
assert not EN.parser.moves.is_valid(stepwise.stcls,'B-ROOT')
stepwise.transition('R-attr') # attach sentence
stepwise.transition('D') # remove sentence
assert not EN.parser.moves.is_valid(stepwise.stcls,'B-ROOT')
stepwise.transition('R-punct') # attach .
assert EN.parser.moves.is_valid(stepwise.stcls,'B-ROOT')
stepwise.transition('B-ROOT') # set sentence start on This
# automatic reduction of the stack, automatic Shift to start second sentence
assert EN.parser.moves.is_valid(stepwise.stcls,'B-ROOT')
stepwise.transition('L-nsubj') # attach This
# stack empty, automatic Shift (is)
assert EN.parser.moves.is_valid(stepwise.stcls,'B-ROOT')
stepwise.transition('S') # shift another
assert EN.parser.moves.is_valid(stepwise.stcls,'B-ROOT')
stepwise.transition('L-attr') # attach another
assert not EN.parser.moves.is_valid(stepwise.stcls,'B-ROOT')
stepwise.transition('R-attr') # attach one
assert EN.parser.moves.is_valid(stepwise.stcls,'B-ROOT')
stepwise.transition('D') # remove one
assert not EN.parser.moves.is_valid(stepwise.stcls,'B-ROOT')
stepwise.transition('R-punct') # attach .
# buffer empty, automatic cleanup
assert len(list(doc.sents)) == 2
for tok in doc:
assert tok.dep != 0 or tok.is_space
assert [ tok.head.i for tok in doc ] == [1,2,2,2,5,2,5,5,2,8,8,8,13,13,16,14,13,13]