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microsoft--graphrag/tests/unit/chunking/test_prepend_metadata.py
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chore: import upstream snapshot with attribution
2026-07-13 12:37:31 +08:00

45 lines
1.8 KiB
Python

# Copyright (c) 2024 Microsoft Corporation.
# Licensed under the MIT License
from graphrag_chunking.transformers import add_metadata
def test_add_metadata_one_row():
"""Test prepending metadata to chunks"""
chunks = ["This is a test.", "Another sentence."]
metadata = {"message": "hello"}
transformer = add_metadata(metadata)
results = [transformer(chunk) for chunk in chunks]
assert results[0] == "message: hello\nThis is a test."
assert results[1] == "message: hello\nAnother sentence."
def test_add_metadata_one_row_append():
"""Test prepending metadata to chunks"""
chunks = ["This is a test.", "Another sentence."]
metadata = {"message": "hello"}
transformer = add_metadata(metadata, append=True)
results = [transformer(chunk) for chunk in chunks]
assert results[0] == "This is a test.message: hello\n"
assert results[1] == "Another sentence.message: hello\n"
def test_add_metadata_multiple_rows():
"""Test prepending metadata to chunks"""
chunks = ["This is a test.", "Another sentence."]
metadata = {"message": "hello", "tag": "first"}
transformer = add_metadata(metadata)
results = [transformer(chunk) for chunk in chunks]
assert results[0] == "message: hello\ntag: first\nThis is a test."
assert results[1] == "message: hello\ntag: first\nAnother sentence."
def test_add_metadata_custom_delimiters():
"""Test prepending metadata to chunks"""
chunks = ["This is a test.", "Another sentence."]
metadata = {"message": "hello", "tag": "first"}
transformer = add_metadata(metadata, delimiter="-", line_delimiter="_")
results = [transformer(chunk) for chunk in chunks]
assert results[0] == "message-hello_tag-first_This is a test."
assert results[1] == "message-hello_tag-first_Another sentence."