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spaCy/spacy/tests/matcher/test_matcher_api.py
Adriane Boyd 31de700b0f
Fix on_match callback and remove empty patterns (#6312) 
For the `DependencyMatcher`:

* Fix on_match callback so that it is called once per matched pattern
* Fix results so that patterns with empty match lists are not returned
2020-11-05 09:16:26 +01:00

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# coding: utf-8
from __future__ import unicode_literals
import pytest
import re
from mock import Mock
from spacy.matcher import Matcher, DependencyMatcher
from spacy.tokens import Doc, Token
from ..doc.test_underscore import clean_underscore # noqa: F401
from ..util import get_doc
@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, 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", [pattern])
assert len(matcher) == 1
matcher.remove("Rule")
assert "Rule" not in matcher
matcher.add("Rule", [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 = 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]
with doc.retokenize() as retokenizer:
retokenizer.merge(span)
token = doc[start]
token.vocab[token.text].norm_ = "happy emoji"
matcher = Matcher(en_vocab)
matcher.add("HAPPY", pos_patterns, on_match=label_sentiment)
matcher(doc)
assert doc.sentiment != 0
assert doc[1].norm_ == "happy emoji"
def test_matcher_len_contains(matcher):
assert len(matcher) == 3
matcher.add("TEST", [[{"ORTH": "test"}]])
assert "TEST" in matcher
assert "TEST2" not in matcher
def test_matcher_add_new_old_api(en_vocab):
doc = Doc(en_vocab, words=["a", "b"])
patterns = [[{"TEXT": "a"}], [{"TEXT": "a"}, {"TEXT": "b"}]]
matcher = Matcher(en_vocab)
matcher.add("OLD_API", None, *patterns)
assert len(matcher(doc)) == 2
matcher = Matcher(en_vocab)
on_match = Mock()
matcher.add("OLD_API_CALLBACK", on_match, *patterns)
assert len(matcher(doc)) == 2
assert on_match.call_count == 2
# New API: add(key: str, patterns: List[List[dict]], on_match: Callable)
matcher = Matcher(en_vocab)
matcher.add("NEW_API", patterns)
assert len(matcher(doc)) == 2
matcher = Matcher(en_vocab)
on_match = Mock()
matcher.add("NEW_API_CALLBACK", patterns, on_match=on_match)
assert len(matcher(doc)) == 2
assert on_match.call_count == 2
def test_matcher_no_match(matcher):
doc = Doc(matcher.vocab, words=["I", "like", "cheese", "."])
assert matcher(doc) == []
def test_matcher_match_start(matcher):
doc = Doc(matcher.vocab, words=["JavaScript", "is", "good"])
assert matcher(doc) == [(matcher.vocab.strings["JS"], 0, 1)]
def test_matcher_match_end(matcher):
words = ["I", "like", "java"]
doc = Doc(matcher.vocab, words=words)
assert matcher(doc) == [(doc.vocab.strings["Java"], 2, 3)]
def test_matcher_match_middle(matcher):
words = ["I", "like", "Google", "Now", "best"]
doc = Doc(matcher.vocab, words=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 = Doc(matcher.vocab, words=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)
doc = Doc(matcher.vocab, words=["a", "b", "c"])
matcher.add("A.C", [[{"ORTH": "a"}, {}, {"ORTH": "c"}]])
matches = matcher(doc)
assert len(matches) == 1
assert matches[0][1:] == (0, 3)
matcher = Matcher(en_vocab)
matcher.add("A.", [[{"ORTH": "a"}, {}]])
matches = matcher(doc)
assert matches[0][1:] == (0, 2)
def test_matcher_operator_shadow(en_vocab):
matcher = Matcher(en_vocab)
doc = Doc(matcher.vocab, words=["a", "b", "c"])
pattern = [{"ORTH": "a"}, {"IS_ALPHA": True, "OP": "+"}, {"ORTH": "c"}]
matcher.add("A.C", [pattern])
matches = matcher(doc)
assert len(matches) == 1
assert matches[0][1:] == (0, 3)
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", [pattern1])
doc = Doc(matcher.vocab, words=words1)
assert len(matcher(doc)) == 1
doc = Doc(matcher.vocab, words=words2)
assert len(matcher(doc)) == 0
matcher.add("Quote", [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", [pattern])
doc = Doc(matcher.vocab, words=words)
assert len(matcher(doc)) == 1
def test_matcher_match_one_plus(matcher):
control = Matcher(matcher.vocab)
control.add("BasicPhilippe", None, [{"ORTH": "Philippe"}])
doc = Doc(control.vocab, words=["Philippe", "Philippe"])
m = control(doc)
assert len(m) == 2
pattern = [{"ORTH": "Philippe", "OP": "1"}, {"ORTH": "Philippe", "OP": "+"}]
matcher.add("KleenePhilippe", [pattern])
m = matcher(doc)
assert len(m) == 1
def test_matcher_any_token_operator(en_vocab):
"""Test that patterns with "any token" {} work with operators."""
matcher = Matcher(en_vocab)
matcher.add("TEST", [[{"ORTH": "test"}, {"OP": "*"}]])
doc = Doc(en_vocab, words=["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"
@pytest.mark.usefixtures("clean_underscore")
def test_matcher_extension_attribute(en_vocab):
matcher = Matcher(en_vocab)
get_is_fruit = lambda token: token.text in ("apple", "banana")
Token.set_extension("is_fruit", getter=get_is_fruit, force=True)
pattern = [{"ORTH": "an"}, {"_": {"is_fruit": True}}]
matcher.add("HAVING_FRUIT", [pattern])
doc = Doc(en_vocab, words=["an", "apple"])
matches = matcher(doc)
assert len(matches) == 1
doc = Doc(en_vocab, words=["an", "aardvark"])
matches = matcher(doc)
assert len(matches) == 0
def test_matcher_set_value(en_vocab):
matcher = Matcher(en_vocab)
pattern = [{"ORTH": {"IN": ["an", "a"]}}]
matcher.add("A_OR_AN", [pattern])
doc = Doc(en_vocab, words=["an", "a", "apple"])
matches = matcher(doc)
assert len(matches) == 2
doc = Doc(en_vocab, words=["aardvark"])
matches = matcher(doc)
assert len(matches) == 0
def test_matcher_set_value_operator(en_vocab):
matcher = Matcher(en_vocab)
pattern = [{"ORTH": {"IN": ["a", "the"]}, "OP": "?"}, {"ORTH": "house"}]
matcher.add("DET_HOUSE", [pattern])
doc = Doc(en_vocab, words=["In", "a", "house"])
matches = matcher(doc)
assert len(matches) == 2
doc = Doc(en_vocab, words=["my", "house"])
matches = matcher(doc)
assert len(matches) == 1
def test_matcher_regex(en_vocab):
matcher = Matcher(en_vocab)
pattern = [{"ORTH": {"REGEX": r"(?:a|an)"}}]
matcher.add("A_OR_AN", [pattern])
doc = Doc(en_vocab, words=["an", "a", "hi"])
matches = matcher(doc)
assert len(matches) == 2
doc = Doc(en_vocab, words=["bye"])
matches = matcher(doc)
assert len(matches) == 0
def test_matcher_regex_shape(en_vocab):
matcher = Matcher(en_vocab)
pattern = [{"SHAPE": {"REGEX": r"^[^x]+$"}}]
matcher.add("NON_ALPHA", [pattern])
doc = Doc(en_vocab, words=["99", "problems", "!"])
matches = matcher(doc)
assert len(matches) == 2
doc = Doc(en_vocab, words=["bye"])
matches = matcher(doc)
assert len(matches) == 0
@pytest.mark.parametrize(
"cmp, bad",
[
("==", ["a", "aaa"]),
("!=", ["aa"]),
(">=", ["a"]),
("<=", ["aaa"]),
(">", ["a", "aa"]),
("<", ["aa", "aaa"]),
],
)
def test_matcher_compare_length(en_vocab, cmp, bad):
matcher = Matcher(en_vocab)
pattern = [{"LENGTH": {cmp: 2}}]
matcher.add("LENGTH_COMPARE", [pattern])
doc = Doc(en_vocab, words=["a", "aa", "aaa"])
matches = matcher(doc)
assert len(matches) == len(doc) - len(bad)
doc = Doc(en_vocab, words=bad)
matches = matcher(doc)
assert len(matches) == 0
def test_matcher_extension_set_membership(en_vocab):
matcher = Matcher(en_vocab)
get_reversed = lambda token: "".join(reversed(token.text))
Token.set_extension("reversed", getter=get_reversed, force=True)
pattern = [{"_": {"reversed": {"IN": ["eyb", "ih"]}}}]
matcher.add("REVERSED", [pattern])
doc = Doc(en_vocab, words=["hi", "bye", "hello"])
matches = matcher(doc)
assert len(matches) == 2
doc = Doc(en_vocab, words=["aardvark"])
matches = matcher(doc)
assert len(matches) == 0
def dependency_matcher(en_vocab):
def is_brown_yellow(text):
return bool(re.compile(r"brown|yellow|over").match(text))
IS_BROWN_YELLOW = en_vocab.add_flag(is_brown_yellow)
pattern1 = [
{"SPEC": {"NODE_NAME": "fox"}, "PATTERN": {"ORTH": "fox"}},
{
"SPEC": {"NODE_NAME": "q", "NBOR_RELOP": ">", "NBOR_NAME": "fox"},
"PATTERN": {"ORTH": "quick", "DEP": "amod"},
},
{
"SPEC": {"NODE_NAME": "r", "NBOR_RELOP": ">", "NBOR_NAME": "fox"},
"PATTERN": {IS_BROWN_YELLOW: True},
},
]
pattern2 = [
{"SPEC": {"NODE_NAME": "jumped"}, "PATTERN": {"ORTH": "jumped"}},
{
"SPEC": {"NODE_NAME": "fox", "NBOR_RELOP": ">", "NBOR_NAME": "jumped"},
"PATTERN": {"ORTH": "fox"},
},
{
"SPEC": {"NODE_NAME": "quick", "NBOR_RELOP": ".", "NBOR_NAME": "jumped"},
"PATTERN": {"ORTH": "fox"},
},
]
pattern3 = [
{"SPEC": {"NODE_NAME": "jumped"}, "PATTERN": {"ORTH": "jumped"}},
{
"SPEC": {"NODE_NAME": "fox", "NBOR_RELOP": ">", "NBOR_NAME": "jumped"},
"PATTERN": {"ORTH": "fox"},
},
{
"SPEC": {"NODE_NAME": "r", "NBOR_RELOP": ">>", "NBOR_NAME": "fox"},
"PATTERN": {"ORTH": "brown"},
},
]
# pattern that doesn't match
pattern4 = [
{"SPEC": {"NODE_NAME": "jumped"}, "PATTERN": {"ORTH": "NOMATCH"}},
{
"SPEC": {"NODE_NAME": "fox", "NBOR_RELOP": ">", "NBOR_NAME": "jumped"},
"PATTERN": {"ORTH": "fox"},
},
{
"SPEC": {"NODE_NAME": "r", "NBOR_RELOP": ">>", "NBOR_NAME": "fox"},
"PATTERN": {"ORTH": "brown"},
},
]
matcher = DependencyMatcher(en_vocab)
on_match = Mock()
matcher.add("pattern1", [pattern1], on_match=on_match)
matcher.add("pattern2", [pattern2], on_match=on_match)
matcher.add("pattern3", [pattern3], on_match=on_match)
matcher.add("pattern4", [pattern4], on_match=on_match)
assert len(dependency_matcher) == 4
text = "The quick brown fox jumped over the lazy fox"
heads = [3, 2, 1, 1, 0, -1, 2, 1, -3]
deps = ["det", "amod", "amod", "nsubj", "ROOT", "prep", "pobj", "det", "amod"]
doc = get_doc(dependency_matcher.vocab, text.split(), heads=heads, deps=deps)
matches = dependency_matcher(doc)
assert len(matches) == 3
assert matches[0][1] == [[3, 1, 2]]
assert matches[1][1] == [[4, 3, 3]]
assert matches[2][1] == [[4, 3, 2]]
assert on_match.call_count == 3
def test_matcher_basic_check(en_vocab):
matcher = Matcher(en_vocab)
# Potential mistake: pass in pattern instead of list of patterns
pattern = [{"TEXT": "hello"}, {"TEXT": "world"}]
with pytest.raises(ValueError):
matcher.add("TEST", pattern)
def test_attr_pipeline_checks(en_vocab):
doc1 = Doc(en_vocab, words=["Test"])
doc1.is_parsed = True
doc2 = Doc(en_vocab, words=["Test"])
doc2.is_tagged = True
doc3 = Doc(en_vocab, words=["Test"])
# DEP requires is_parsed
matcher = Matcher(en_vocab)
matcher.add("TEST", [[{"DEP": "a"}]])
matcher(doc1)
with pytest.raises(ValueError):
matcher(doc2)
with pytest.raises(ValueError):
matcher(doc3)
# TAG, POS, LEMMA require is_tagged
for attr in ("TAG", "POS", "LEMMA"):
matcher = Matcher(en_vocab)
matcher.add("TEST", [[{attr: "a"}]])
matcher(doc2)
with pytest.raises(ValueError):
matcher(doc1)
with pytest.raises(ValueError):
matcher(doc3)
# TEXT/ORTH only require tokens
matcher = Matcher(en_vocab)
matcher.add("TEST", [[{"ORTH": "a"}]])
matcher(doc1)
matcher(doc2)
matcher(doc3)
matcher = Matcher(en_vocab)
matcher.add("TEST", [[{"TEXT": "a"}]])
matcher(doc1)
matcher(doc2)
matcher(doc3)
@pytest.mark.parametrize(
"pattern,text",
[
([{"IS_ALPHA": True}], "a"),
([{"IS_ASCII": True}], "a"),
([{"IS_DIGIT": True}], "1"),
([{"IS_LOWER": True}], "a"),
([{"IS_UPPER": True}], "A"),
([{"IS_TITLE": True}], "Aaaa"),
([{"IS_PUNCT": True}], "."),
([{"IS_SPACE": True}], "\n"),
([{"IS_BRACKET": True}], "["),
([{"IS_QUOTE": True}], '"'),
([{"IS_LEFT_PUNCT": True}], "``"),
([{"IS_RIGHT_PUNCT": True}], "''"),
([{"IS_STOP": True}], "the"),
([{"LIKE_NUM": True}], "1"),
([{"LIKE_URL": True}], "http://example.com"),
([{"LIKE_EMAIL": True}], "mail@example.com"),
],
)
def test_matcher_schema_token_attributes(en_vocab, pattern, text):
matcher = Matcher(en_vocab)
doc = Doc(en_vocab, words=text.split(" "))
matcher.add("Rule", [pattern])
assert len(matcher) == 1
matches = matcher(doc)
assert len(matches) == 1
def test_matcher_valid_callback(en_vocab):
"""Test that on_match can only be None or callable."""
matcher = Matcher(en_vocab)
with pytest.raises(ValueError):
matcher.add("TEST", [[{"TEXT": "test"}]], on_match=[])
matcher(Doc(en_vocab, words=["test"]))
def test_matcher_callback(en_vocab):
mock = Mock()
matcher = Matcher(en_vocab)
pattern = [{"ORTH": "test"}]
matcher.add("Rule", [pattern], on_match=mock)
doc = Doc(en_vocab, words=["This", "is", "a", "test", "."])
matches = matcher(doc)
mock.assert_called_once_with(matcher, doc, 0, matches)
def test_matcher_span(matcher):
text = "JavaScript is good but Java is better"
doc = Doc(matcher.vocab, words=text.split())
span_js = doc[:3]
span_java = doc[4:]
assert len(matcher(doc)) == 2
assert len(matcher(span_js)) == 1
assert len(matcher(span_java)) == 1
def test_matcher_remove_zero_operator(en_vocab):
matcher = Matcher(en_vocab)
pattern = [{"OP": "!"}]
matcher.add("Rule", [pattern])
doc = Doc(en_vocab, words=["This", "is", "a", "test", "."])
matches = matcher(doc)
assert len(matches) == 0
assert "Rule" in matcher
matcher.remove("Rule")
assert "Rule" not in matcher
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