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			26 lines
		
	
	
		
			752 B
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			26 lines
		
	
	
		
			752 B
		
	
	
	
		
			Python
		
	
	
	
	
	
# coding: utf8
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from __future__ import unicode_literals
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from spacy.lang.en import English
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from spacy.util import minibatch, compounding
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import pytest
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@pytest.mark.filterwarnings("ignore::UserWarning")
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def test_issue4348():
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    """Test that training the tagger with empty data, doesn't throw errors"""
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    TRAIN_DATA = [("", {"tags": []}), ("", {"tags": []})]
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    nlp = English()
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    tagger = nlp.create_pipe("tagger")
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    nlp.add_pipe(tagger)
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    optimizer = nlp.begin_training()
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    for i in range(5):
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        losses = {}
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        batches = minibatch(TRAIN_DATA, size=compounding(4.0, 32.0, 1.001))
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        for batch in batches:
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            texts, annotations = zip(*batch)
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            nlp.update(texts, annotations, sgd=optimizer, losses=losses)
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