langchain/tests/unit_tests/tools/file_management/test_copy.py

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"""Test the FileCopy tool."""
from pathlib import Path
from tempfile import TemporaryDirectory
from langchain.tools.file_management.copy import CopyFileTool
from langchain.tools.file_management.utils import (
INVALID_PATH_TEMPLATE,
)
def test_copy_file_with_root_dir() -> None:
"""Test the FileCopy tool when a root dir is specified."""
with TemporaryDirectory() as temp_dir:
tool = CopyFileTool(root_dir=temp_dir)
source_file = Path(temp_dir) / "source.txt"
destination_file = Path(temp_dir) / "destination.txt"
source_file.write_text("Hello, world!")
tool.run({"source_path": "source.txt", "destination_path": "destination.txt"})
assert source_file.exists()
assert destination_file.exists()
assert source_file.read_text() == "Hello, world!"
assert destination_file.read_text() == "Hello, world!"
def test_copy_file_errs_outside_root_dir() -> None:
"""Test the FileCopy tool when a root dir is specified."""
with TemporaryDirectory() as temp_dir:
tool = CopyFileTool(root_dir=temp_dir)
result = tool.run(
{
"source_path": "../source.txt",
"destination_path": "../destination.txt",
}
)
assert result == INVALID_PATH_TEMPLATE.format(
arg_name="source_path", value="../source.txt"
)
def test_copy_file() -> None:
"""Test the FileCopy tool."""
with TemporaryDirectory() as temp_dir:
tool = CopyFileTool()
source_file = Path(temp_dir) / "source.txt"
destination_file = Path(temp_dir) / "destination.txt"
source_file.write_text("Hello, world!")
tool.run(
{"source_path": str(source_file), "destination_path": str(destination_file)}
)
assert source_file.exists()
assert destination_file.exists()
assert source_file.read_text() == "Hello, world!"
assert destination_file.read_text() == "Hello, world!"