mirror of
https://github.com/hwchase17/langchain
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103 lines
3.2 KiB
Python
103 lines
3.2 KiB
Python
"""Test the bash utility."""
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import re
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import subprocess
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import sys
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from pathlib import Path
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import pytest
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from langchain_experimental.llm_bash.bash import BashProcess
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@pytest.mark.skipif(
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sys.platform.startswith("win"), reason="Test not supported on Windows"
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)
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def test_pwd_command() -> None:
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"""Test correct functionality."""
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session = BashProcess()
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commands = ["pwd"]
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output = session.run(commands)
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assert output == subprocess.check_output("pwd", shell=True).decode()
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@pytest.mark.skip(reason="flaky on GHA, TODO to fix")
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@pytest.mark.skipif(
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sys.platform.startswith("win"), reason="Test not supported on Windows"
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)
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def test_pwd_command_persistent() -> None:
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"""Test correct functionality when the bash process is persistent."""
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session = BashProcess(persistent=True, strip_newlines=True)
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commands = ["pwd"]
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output = session.run(commands)
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assert subprocess.check_output("pwd", shell=True).decode().strip() in output
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session.run(["cd .."])
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new_output = session.run(["pwd"])
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# Assert that the new_output is a parent of the old output
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assert Path(output).parent == Path(new_output)
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@pytest.mark.skipif(
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sys.platform.startswith("win"), reason="Test not supported on Windows"
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)
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def test_incorrect_command() -> None:
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"""Test handling of incorrect command."""
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session = BashProcess()
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output = session.run(["invalid_command"])
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assert output == "Command 'invalid_command' returned non-zero exit status 127."
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@pytest.mark.skipif(
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sys.platform.startswith("win"), reason="Test not supported on Windows"
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)
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def test_incorrect_command_return_err_output() -> None:
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"""Test optional returning of shell output on incorrect command."""
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session = BashProcess(return_err_output=True)
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output = session.run(["invalid_command"])
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assert re.match(
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r"^/bin/sh:.*invalid_command.*(?:not found|Permission denied).*$", output
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)
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@pytest.mark.skipif(
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sys.platform.startswith("win"), reason="Test not supported on Windows"
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)
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def test_create_directory_and_files(tmp_path: Path) -> None:
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"""Test creation of a directory and files in a temporary directory."""
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session = BashProcess(strip_newlines=True)
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# create a subdirectory in the temporary directory
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temp_dir = tmp_path / "test_dir"
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temp_dir.mkdir()
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# run the commands in the temporary directory
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commands = [
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f"touch {temp_dir}/file1.txt",
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f"touch {temp_dir}/file2.txt",
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f"echo 'hello world' > {temp_dir}/file2.txt",
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f"cat {temp_dir}/file2.txt",
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]
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output = session.run(commands)
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assert output == "hello world"
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# check that the files were created in the temporary directory
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output = session.run([f"ls {temp_dir}"])
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assert output == "file1.txt\nfile2.txt"
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@pytest.mark.skip(reason="flaky on GHA, TODO to fix")
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@pytest.mark.skipif(
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sys.platform.startswith("win"), reason="Test not supported on Windows"
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)
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def test_create_bash_persistent() -> None:
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"""Test the pexpect persistent bash terminal"""
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session = BashProcess(persistent=True)
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response = session.run("echo hello")
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response += session.run("echo world")
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assert "hello" in response
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assert "world" in response
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