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A pytest test function that verifies the SimilarityCleaner correctly handles a single text document by returning it unchanged.

Purpose

This is a unit test that validates the edge case behavior of the SimilarityCleaner when processing a list containing only one text document. It ensures that when there's only a single document, the cleaner returns it as-is without modification, since similarity comparison requires at least two documents.

Source Code

def test_single_text_input(setup_similarity_cleaner):
    texts = ["Just a single document."]
    cleaned_texts = setup_similarity_cleaner.clean(texts)
    assert cleaned_texts == texts

Parameters

Parameter Details

setup_similarity_cleaner: A pytest fixture that provides an initialized instance of the SimilarityCleaner class. This fixture is expected to be defined elsewhere in the test suite and handles the setup/teardown of the cleaner object.

Return Value

This function does not explicitly return a value. As a pytest test function, it performs assertions and will raise an AssertionError if the test fails, or pass silently if successful.

Dependencies

• pytest
• src.cleaners.similarity_cleaner

Required Imports

import pytest
from src.cleaners.similarity_cleaner import SimilarityCleaner

Usage Example

# In conftest.py or test file:
import pytest
from src.cleaners.similarity_cleaner import SimilarityCleaner

@pytest.fixture
def setup_similarity_cleaner():
    return SimilarityCleaner()

# Test execution:
def test_single_text_input(setup_similarity_cleaner):
    texts = ["Just a single document."]
    cleaned_texts = setup_similarity_cleaner.clean(texts)
    assert cleaned_texts == texts

# Run with: pytest test_file.py::test_single_text_input

Best Practices

• This test should be part of a comprehensive test suite that covers multiple edge cases for the SimilarityCleaner
• The fixture 'setup_similarity_cleaner' should be properly defined with appropriate initialization parameters
• Consider adding additional assertions to verify the type and structure of the returned value
• This test validates an important edge case - ensure similar tests exist for empty lists and multiple documents
• The test assumes that a single document should pass through unchanged; verify this is the intended behavior of SimilarityCleaner

Tags

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