spaCy/spacy/tests/regression/test_issue5082.py

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import numpy as np
from spacy.lang.en import English
from spacy.pipeline import EntityRuler
def test_issue5082():
# Ensure the 'merge_entities' pipeline does something sensible for the vectors of the merged tokens
nlp = English()
vocab = nlp.vocab
array1 = np.asarray([0.1, 0.5, 0.8], dtype=np.float32)
array2 = np.asarray([-0.2, -0.6, -0.9], dtype=np.float32)
array3 = np.asarray([0.3, -0.1, 0.7], dtype=np.float32)
array4 = np.asarray([0.5, 0, 0.3], dtype=np.float32)
array34 = np.asarray([0.4, -0.05, 0.5], dtype=np.float32)
vocab.set_vector("I", array1)
vocab.set_vector("like", array2)
vocab.set_vector("David", array3)
vocab.set_vector("Bowie", array4)
text = "I like David Bowie"
ruler = EntityRuler(nlp)
patterns = [
{"label": "PERSON", "pattern": [{"LOWER": "david"}, {"LOWER": "bowie"}]}
]
ruler.add_patterns(patterns)
nlp.add_pipe(ruler)
parsed_vectors_1 = [t.vector for t in nlp(text)]
assert len(parsed_vectors_1) == 4
np.testing.assert_array_equal(parsed_vectors_1[0], array1)
np.testing.assert_array_equal(parsed_vectors_1[1], array2)
np.testing.assert_array_equal(parsed_vectors_1[2], array3)
np.testing.assert_array_equal(parsed_vectors_1[3], array4)
merge_ents = nlp.create_pipe("merge_entities")
nlp.add_pipe(merge_ents)
parsed_vectors_2 = [t.vector for t in nlp(text)]
assert len(parsed_vectors_2) == 3
np.testing.assert_array_equal(parsed_vectors_2[0], array1)
np.testing.assert_array_equal(parsed_vectors_2[1], array2)
np.testing.assert_array_equal(parsed_vectors_2[2], array34)