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68 lines
2.3 KiB
Python
68 lines
2.3 KiB
Python
import pytest
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@pytest.fixture(autouse=True)
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def _ensure_spacy():
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"""Skip tests if spaCy model is not available."""
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try:
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import spacy
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spacy.load("en_core_web_sm")
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except Exception:
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pytest.skip("spaCy en_core_web_sm model not available")
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class TestLemmatizeForBm25:
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def test_basic_lemmatization(self):
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from mem0.utils.lemmatization import lemmatize_for_bm25
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result = lemmatize_for_bm25("The cats are running quickly")
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assert "cat" in result
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assert "run" in result or "running" in result
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# Stop words and punctuation should be removed
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assert "the" not in result.split()
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def test_verb_forms_normalized(self):
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from mem0.utils.lemmatization import lemmatize_for_bm25
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result = lemmatize_for_bm25("she attended multiple meetings yesterday")
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assert "attend" in result or "attended" in result
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assert "meeting" in result # -ing form preserved alongside lemma
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# "multiple" is kept (not a spaCy stop word)
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def test_ing_preservation(self):
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from mem0.utils.lemmatization import lemmatize_for_bm25
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result = lemmatize_for_bm25("attending the morning meeting")
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tokens = result.split()
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# Should have both the lemma and the -ing form
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assert "attending" in tokens or "attend" in tokens
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def test_empty_string(self):
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from mem0.utils.lemmatization import lemmatize_for_bm25
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result = lemmatize_for_bm25("")
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assert result == ""
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def test_punctuation_removed(self):
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from mem0.utils.lemmatization import lemmatize_for_bm25
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result = lemmatize_for_bm25("Hello, world! How are you?")
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assert "," not in result
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assert "!" not in result
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assert "?" not in result
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def test_lowercased(self):
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from mem0.utils.lemmatization import lemmatize_for_bm25
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result = lemmatize_for_bm25("PYTHON Programming LANGUAGE")
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for token in result.split():
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assert token == token.lower()
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def test_stop_words_removed(self):
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from mem0.utils.lemmatization import lemmatize_for_bm25
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result = lemmatize_for_bm25("this is a very simple test of the system")
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tokens = result.split()
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for stop in ["this", "is", "a", "very", "of", "the"]:
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assert stop not in tokens
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