mirror of https://github.com/explosion/spaCy.git
67 lines
1.9 KiB
Python
67 lines
1.9 KiB
Python
import pytest
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from spacy import util
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from spacy.gold import Example
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from spacy.lang.en import English
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from spacy.language import Language
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from spacy.tests.util import make_tempdir
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def test_label_types():
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nlp = Language()
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nlp.add_pipe(nlp.create_pipe("morphologizer"))
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nlp.get_pipe("morphologizer").add_label("Feat=A")
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with pytest.raises(ValueError):
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nlp.get_pipe("morphologizer").add_label(9)
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TRAIN_DATA = [
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(
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"I like green eggs",
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{
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"morphs": ["Feat=N", "Feat=V", "Feat=J", "Feat=N"],
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"pos": ["NOUN", "VERB", "ADJ", "NOUN"],
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},
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),
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(
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"Eat blue ham",
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{"morphs": ["Feat=V", "Feat=J", "Feat=N"], "pos": ["VERB", "ADJ", "NOUN"]},
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),
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]
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def test_overfitting_IO():
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# Simple test to try and quickly overfit the morphologizer - ensuring the ML models work correctly
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nlp = English()
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morphologizer = nlp.create_pipe("morphologizer")
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train_examples = []
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for inst in TRAIN_DATA:
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train_examples.append(Example.from_dict(nlp.make_doc(inst[0]), inst[1]))
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for morph, pos in zip(inst[1]["morphs"], inst[1]["pos"]):
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morphologizer.add_label(morph + "|POS=" + pos)
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nlp.add_pipe(morphologizer)
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optimizer = nlp.begin_training()
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for i in range(50):
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losses = {}
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nlp.update(train_examples, sgd=optimizer, losses=losses)
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assert losses["morphologizer"] < 0.00001
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# test the trained model
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test_text = "I like blue eggs"
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doc = nlp(test_text)
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gold_morphs = [
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"Feat=N|POS=NOUN",
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"Feat=V|POS=VERB",
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"Feat=J|POS=ADJ",
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"Feat=N|POS=NOUN",
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]
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assert [t.morph_ for t in doc] == gold_morphs
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# Also test the results are still the same after IO
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with make_tempdir() as tmp_dir:
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nlp.to_disk(tmp_dir)
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nlp2 = util.load_model_from_path(tmp_dir)
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doc2 = nlp2(test_text)
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assert gold_morphs == [t.morph_ for t in doc2]
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