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

80 lines
2.4 KiB
Python

# Copyright (c) 2024 Microsoft Corporation.
# Licensed under the MIT License
from graphrag_input import InputConfig, InputType, create_input_reader
from graphrag_storage import StorageConfig, create_storage
async def test_csv_loader_one_file():
config = InputConfig(
type=InputType.Csv,
file_pattern=".*\\.csv$",
)
storage = create_storage(
StorageConfig(
base_dir="tests/unit/indexing/input/data/one-csv",
)
)
reader = create_input_reader(config, storage)
documents = await reader.read_files()
assert len(documents) == 2
assert documents[0].title == "input.csv (0)"
assert documents[0].raw_data == {
"title": "Hello",
"text": "Hi how are you today?",
}
assert documents[1].title == "input.csv (1)"
async def test_csv_loader_one_file_with_title():
config = InputConfig(
type=InputType.Csv,
title_column="title",
)
storage = create_storage(
StorageConfig(
base_dir="tests/unit/indexing/input/data/one-csv",
)
)
reader = create_input_reader(config, storage)
documents = await reader.read_files()
assert len(documents) == 2
assert documents[0].title == "Hello"
async def test_csv_loader_multiple_files():
config = InputConfig(
type=InputType.Csv,
)
storage = create_storage(
StorageConfig(
base_dir="tests/unit/indexing/input/data/multiple-csvs",
)
)
reader = create_input_reader(config, storage)
documents = await reader.read_files()
assert len(documents) == 4
async def test_csv_loader_preserves_multiline_fields(tmp_path):
"""Multiline quoted CSV fields must retain their internal newlines."""
csv_content = (
"title,text\r\n"
'"Post 1","Line one.\nLine two.\nLine three."\r\n'
'"Post 2","Single line."\r\n'
)
(tmp_path / "input.csv").write_text(csv_content, encoding="utf-8")
config = InputConfig(
type=InputType.Csv,
text_column="text",
title_column="title",
)
storage = create_storage(StorageConfig(base_dir=str(tmp_path)))
reader = create_input_reader(config, storage)
documents = await reader.read_files()
assert len(documents) == 2
assert documents[0].title == "Post 1"
assert documents[0].text == "Line one.\nLine two.\nLine three."
assert documents[1].title == "Post 2"
assert documents[1].text == "Single line."