Files
langgraph/libs/cli/tests/unit_tests/cli/test_templates.py
T
87f2e69395 chore[deps]: upgrade dependencies with uv lock --upgrade (#5358)
* chore: upgrade dependencies with `uv lock --upgrade`

* linting

* upgrade PR title

---------

Co-authored-by: sydney-runkle <54324534+sydney-runkle@users.noreply.github.com>
Co-authored-by: Sydney Runkle <sydneymarierunkle@gmail.com>
2025-07-07 23:24:32 +00:00

71 lines
2.5 KiB
Python

"""Unit tests for the 'new' CLI command.
This command creates a new LangGraph project using a specified template.
"""
import os
from io import BytesIO
from pathlib import Path
from tempfile import TemporaryDirectory
from unittest.mock import MagicMock, patch
from urllib import request
from zipfile import ZipFile
from click.testing import CliRunner
from langgraph_cli.cli import cli
from langgraph_cli.templates import TEMPLATE_ID_TO_CONFIG
@patch.object(request, "urlopen")
def test_create_new_with_mocked_download(mock_urlopen: MagicMock) -> None:
"""Test the 'new' CLI command with a mocked download response using urllib."""
# Mock the response content to simulate a ZIP file
mock_zip_content = BytesIO()
with ZipFile(mock_zip_content, "w") as mock_zip:
mock_zip.writestr("test-file.txt", "Test content.")
# Create a mock response that behaves like a context manager
mock_response = MagicMock()
mock_response.read.return_value = mock_zip_content.getvalue()
mock_response.__enter__.return_value = mock_response # Setup enter context
mock_response.status = 200
mock_urlopen.return_value = mock_response
with TemporaryDirectory() as temp_dir:
runner = CliRunner()
template = next(
iter(TEMPLATE_ID_TO_CONFIG)
) # Select the first template for the test
result = runner.invoke(cli, ["new", temp_dir, "--template", template])
# Verify CLI command execution and success
assert result.exit_code == 0, result.output
assert "New project created" in result.output, (
"Expected success message in output."
)
# Verify that the directory is not empty
assert os.listdir(temp_dir), "Expected files to be created in temp directory."
# Check for a known file in the extracted content
extracted_files = [f.name for f in Path(temp_dir).glob("*")]
assert "test-file.txt" in extracted_files, (
"Expected 'test-file.txt' in the extracted content."
)
def test_invalid_template_id() -> None:
"""Test that an invalid template ID passed via CLI results in a graceful error."""
runner = CliRunner()
result = runner.invoke(
cli, ["new", "dummy_path", "--template", "invalid-template-id"]
)
# Verify the command failed and proper message is displayed
assert result.exit_code != 0, "Expected non-zero exit code for invalid template."
assert "Template 'invalid-template-id' not found" in result.output, (
"Expected error message in output."
)