spaCy/spacy/tests/test_matcher.py
2018-07-06 12:18:17 +02:00

273 lines
8.6 KiB
Python

# coding: utf-8
from __future__ import unicode_literals
from ..matcher import Matcher, PhraseMatcher
from .util import get_doc
import pytest
@pytest.fixture
def matcher(en_vocab):
rules = {
'JS': [[{'ORTH': 'JavaScript'}]],
'GoogleNow': [[{'ORTH': 'Google'}, {'ORTH': 'Now'}]],
'Java': [[{'LOWER': 'java'}]]
}
matcher = Matcher(en_vocab)
for key, patterns in rules.items():
matcher.add(key, None, *patterns)
return matcher
def test_matcher_from_api_docs(en_vocab):
matcher = Matcher(en_vocab)
pattern = [{'ORTH': 'test'}]
assert len(matcher) == 0
matcher.add('Rule', None, pattern)
assert len(matcher) == 1
matcher.remove('Rule')
assert 'Rule' not in matcher
matcher.add('Rule', None, pattern)
assert 'Rule' in matcher
on_match, patterns = matcher.get('Rule')
assert len(patterns[0])
def test_matcher_from_usage_docs(en_vocab):
text = "Wow 😀 This is really cool! 😂 😂"
doc = get_doc(en_vocab, words=text.split(' '))
pos_emoji = ['😀', '😃', '😂', '🤣', '😊', '😍']
pos_patterns = [[{'ORTH': emoji}] for emoji in pos_emoji]
def label_sentiment(matcher, doc, i, matches):
match_id, start, end = matches[i]
if doc.vocab.strings[match_id] == 'HAPPY':
doc.sentiment += 0.1
span = doc[start : end]
token = span.merge()
token.vocab[token.text].norm_ = 'happy emoji'
matcher = Matcher(en_vocab)
matcher.add('HAPPY', label_sentiment, *pos_patterns)
matches = matcher(doc)
assert doc.sentiment != 0
assert doc[1].norm_ == 'happy emoji'
@pytest.mark.parametrize('words', [["Some", "words"]])
def test_matcher_init(en_vocab, words):
matcher = Matcher(en_vocab)
doc = get_doc(en_vocab, words)
assert len(matcher) == 0
assert matcher(doc) == []
def test_matcher_contains(matcher):
matcher.add('TEST', None, [{'ORTH': 'test'}])
assert 'TEST' in matcher
assert 'TEST2' not in matcher
def test_matcher_no_match(matcher):
words = ["I", "like", "cheese", "."]
doc = get_doc(matcher.vocab, words)
assert matcher(doc) == []
def test_matcher_compile(en_vocab):
rules = {
'JS': [[{'ORTH': 'JavaScript'}]],
'GoogleNow': [[{'ORTH': 'Google'}, {'ORTH': 'Now'}]],
'Java': [[{'LOWER': 'java'}]]
}
matcher = Matcher(en_vocab)
for key, patterns in rules.items():
matcher.add(key, None, *patterns)
assert len(matcher) == 3
def test_matcher_match_start(matcher):
words = ["JavaScript", "is", "good"]
doc = get_doc(matcher.vocab, words)
assert matcher(doc) == [(matcher.vocab.strings['JS'], 0, 1)]
def test_matcher_match_end(matcher):
words = ["I", "like", "java"]
doc = get_doc(matcher.vocab, words)
assert matcher(doc) == [(doc.vocab.strings['Java'], 2, 3)]
def test_matcher_match_middle(matcher):
words = ["I", "like", "Google", "Now", "best"]
doc = get_doc(matcher.vocab, words)
assert matcher(doc) == [(doc.vocab.strings['GoogleNow'], 2, 4)]
def test_matcher_match_multi(matcher):
words = ["I", "like", "Google", "Now", "and", "java", "best"]
doc = get_doc(matcher.vocab, words)
assert matcher(doc) == [(doc.vocab.strings['GoogleNow'], 2, 4),
(doc.vocab.strings['Java'], 5, 6)]
def test_matcher_empty_dict(en_vocab):
'''Test matcher allows empty token specs, meaning match on any token.'''
matcher = Matcher(en_vocab)
abc = ["a", "b", "c"]
doc = get_doc(matcher.vocab, abc)
matcher.add('A.C', None, [{'ORTH': 'a'}, {}, {'ORTH': 'c'}])
matches = matcher(doc)
assert len(matches) == 1
assert matches[0][1:] == (0, 3)
matcher = Matcher(en_vocab)
matcher.add('A.', None, [{'ORTH': 'a'}, {}])
matches = matcher(doc)
assert matches[0][1:] == (0, 2)
def test_matcher_operator_shadow(en_vocab):
matcher = Matcher(en_vocab)
abc = ["a", "b", "c"]
doc = get_doc(matcher.vocab, abc)
pattern = [{'ORTH': 'a'}, {"IS_ALPHA": True, "OP": "+"}, {'ORTH': 'c'}]
matcher.add('A.C', None, pattern)
matches = matcher(doc)
assert len(matches) == 1
assert matches[0][1:] == (0, 3)
def test_matcher_phrase_matcher(en_vocab):
words = ["Google", "Now"]
doc = get_doc(en_vocab, words)
matcher = PhraseMatcher(en_vocab)
matcher.add('COMPANY', None, doc)
words = ["I", "like", "Google", "Now", "best"]
doc = get_doc(en_vocab, words)
assert len(matcher(doc)) == 1
def test_phrase_matcher_length(en_vocab):
matcher = PhraseMatcher(en_vocab)
assert len(matcher) == 0
matcher.add('TEST', None, get_doc(en_vocab, ['test']))
assert len(matcher) == 1
matcher.add('TEST2', None, get_doc(en_vocab, ['test2']))
assert len(matcher) == 2
def test_phrase_matcher_contains(en_vocab):
matcher = PhraseMatcher(en_vocab)
matcher.add('TEST', None, get_doc(en_vocab, ['test']))
assert 'TEST' in matcher
assert 'TEST2' not in matcher
def test_matcher_match_zero(matcher):
words1 = 'He said , " some words " ...'.split()
words2 = 'He said , " some three words " ...'.split()
pattern1 = [{'ORTH': '"'},
{'OP': '!', 'IS_PUNCT': True},
{'OP': '!', 'IS_PUNCT': True},
{'ORTH': '"'}]
pattern2 = [{'ORTH': '"'},
{'IS_PUNCT': True},
{'IS_PUNCT': True},
{'IS_PUNCT': True},
{'ORTH': '"'}]
matcher.add('Quote', None, pattern1)
doc = get_doc(matcher.vocab, words1)
assert len(matcher(doc)) == 1
doc = get_doc(matcher.vocab, words2)
assert len(matcher(doc)) == 0
matcher.add('Quote', None, pattern2)
assert len(matcher(doc)) == 0
def test_matcher_match_zero_plus(matcher):
words = 'He said , " some words " ...'.split()
pattern = [{'ORTH': '"'},
{'OP': '*', 'IS_PUNCT': False},
{'ORTH': '"'}]
matcher = Matcher(matcher.vocab)
matcher.add('Quote', None, pattern)
doc = get_doc(matcher.vocab, words)
assert len(matcher(doc)) == 1
def test_matcher_match_one_plus(matcher):
control = Matcher(matcher.vocab)
control.add('BasicPhilippe', None, [{'ORTH': 'Philippe'}])
doc = get_doc(control.vocab, ['Philippe', 'Philippe'])
m = control(doc)
assert len(m) == 2
matcher.add('KleenePhilippe', None, [{'ORTH': 'Philippe', 'OP': '1'},
{'ORTH': 'Philippe', 'OP': '+'}])
m = matcher(doc)
assert len(m) == 1
def test_operator_combos(matcher):
cases = [
('aaab', 'a a a b', True),
('aaab', 'a+ b', True),
('aaab', 'a+ a+ b', True),
('aaab', 'a+ a+ a b', True),
('aaab', 'a+ a+ a+ b', True),
('aaab', 'a+ a a b', True),
('aaab', 'a+ a a', True),
('aaab', 'a+', True),
('aaa', 'a+ b', False),
('aaa', 'a+ a+ b', False),
('aaa', 'a+ a+ a+ b', False),
('aaa', 'a+ a b', False),
('aaa', 'a+ a a b', False),
('aaab', 'a+ a a', True),
('aaab', 'a+', True),
('aaab', 'a+ a b', True)
]
for string, pattern_str, result in cases:
matcher = Matcher(matcher.vocab)
doc = get_doc(matcher.vocab, words=list(string))
pattern = []
for part in pattern_str.split():
if part.endswith('+'):
pattern.append({'ORTH': part[0], 'op': '+'})
else:
pattern.append({'ORTH': part})
matcher.add('PATTERN', None, pattern)
matches = matcher(doc)
if result:
assert matches, (string, pattern_str)
else:
assert not matches, (string, pattern_str)
def test_matcher_end_zero_plus(matcher):
"""Test matcher works when patterns end with * operator. (issue 1450)"""
matcher = Matcher(matcher.vocab)
pattern = [{'ORTH': "a"}, {'ORTH': "b", 'OP': "*"}]
matcher.add("TSTEND", None, pattern)
nlp = lambda string: get_doc(matcher.vocab, string.split())
assert len(matcher(nlp('a'))) == 1
assert len(matcher(nlp('a b'))) == 2
assert len(matcher(nlp('a c'))) == 1
assert len(matcher(nlp('a b c'))) == 2
assert len(matcher(nlp('a b b c'))) == 3
assert len(matcher(nlp('a b b'))) == 3
def test_matcher_any_token_operator(en_vocab):
"""Test that patterns with "any token" {} work with operators."""
matcher = Matcher(en_vocab)
matcher.add('TEST', None, [{'ORTH': 'test'}, {'OP': '*'}])
doc = get_doc(en_vocab, ['test', 'hello', 'world'])
matches = [doc[start:end].text for _, start, end in matcher(doc)]
assert len(matches) == 3
assert matches[0] == 'test'
assert matches[1] == 'test hello'
assert matches[2] == 'test hello world'