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# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License.
import argparse
import contextlib
import importlib
import io
import json
import os
import sys
import pytest
import create_venv
@pytest.mark.skipif(sys.platform == "win32", reason="Windows does not have micro venv fallback.")
def test_venv_not_installed_unix():
importlib.reload(create_venv)
create_venv.is_installed = lambda module: module != "venv"
run_process_called = False
def run_process(args, error_message):
nonlocal run_process_called
microvenv_path = os.fspath(create_venv.MICROVENV_SCRIPT_PATH)
if microvenv_path in args:
run_process_called = True
assert args == [
sys.executable,
microvenv_path,
"--name",
".test_venv",
]
assert error_message == "CREATE_VENV.MICROVENV_FAILED_CREATION"
create_venv.run_process = run_process
create_venv.main(["--name", ".test_venv"])
# run_process is called when the venv does not exist
assert run_process_called is True
@pytest.mark.skipif(sys.platform != "win32", reason="Windows does not have microvenv fallback.")
def test_venv_not_installed_windows():
importlib.reload(create_venv)
create_venv.is_installed = lambda module: module != "venv"
with pytest.raises(create_venv.VenvError) as e:
create_venv.main()
assert str(e.value) == "CREATE_VENV.VENV_NOT_FOUND"
@pytest.mark.parametrize("env_exists", ["hasEnv", "noEnv"])
@pytest.mark.parametrize("git_ignore", ["useGitIgnore", "skipGitIgnore"])
@pytest.mark.parametrize("install", ["requirements", "toml", "skipInstall"])
def test_create_env(env_exists, git_ignore, install):
importlib.reload(create_venv)
create_venv.is_installed = lambda _x: True
create_venv.venv_exists = lambda _n: env_exists == "hasEnv"
create_venv.upgrade_pip = lambda _x: None
install_packages_called = False
def install_packages(_env, _name):
nonlocal install_packages_called
install_packages_called = True
create_venv.install_requirements = install_packages
create_venv.install_toml = install_packages
run_process_called = False
def run_process(args, error_message):
nonlocal run_process_called
run_process_called = True
if env_exists == "noEnv":
assert args == [sys.executable, "-m", "venv", create_venv.VENV_NAME]
assert error_message == "CREATE_VENV.VENV_FAILED_CREATION"
create_venv.run_process = run_process
add_gitignore_called = False
def add_gitignore(_name):
nonlocal add_gitignore_called
add_gitignore_called = True
create_venv.add_gitignore = add_gitignore
args = []
if git_ignore == "useGitIgnore":
args += ["--git-ignore"]
if install == "requirements":
args += ["--requirements", "requirements-for-test.txt"]
elif install == "toml":
args += ["--toml", "pyproject.toml", "--extras", "test"]
create_venv.main(args)
assert install_packages_called == (install != "skipInstall")
# run_process is called when the venv does not exist
assert run_process_called == (env_exists == "noEnv")
# add_gitignore is called when new venv is created and git_ignore is True
assert add_gitignore_called == ((env_exists == "noEnv") and (git_ignore == "useGitIgnore"))
@pytest.mark.parametrize("install_type", ["requirements", "pyproject", "both"])
def test_install_packages(install_type):
importlib.reload(create_venv)
create_venv.is_installed = lambda _x: True
create_venv.file_exists = lambda x: install_type in x
pip_upgraded = False
installing = None
order = []
def run_process(args, error_message):
nonlocal pip_upgraded, installing, order
if args[1:] == ["-m", "pip", "install", "--upgrade", "pip"]:
pip_upgraded = True
assert error_message == "CREATE_VENV.UPGRADE_PIP_FAILED"
elif args[1:-1] == ["-m", "pip", "install", "-r"]:
installing = "requirements"
order += ["requirements"]
assert error_message == "CREATE_VENV.PIP_FAILED_INSTALL_REQUIREMENTS"
elif args[1:] == ["-m", "pip", "install", "-e", ".[test]"]:
installing = "pyproject"
order += ["pyproject"]
assert error_message == "CREATE_VENV.PIP_FAILED_INSTALL_PYPROJECT"
create_venv.run_process = run_process
if install_type == "requirements":
create_venv.main(["--requirements", "requirements-for-test.txt"])
elif install_type == "pyproject":
create_venv.main(["--toml", "pyproject.toml", "--extras", "test"])
elif install_type == "both":
create_venv.main(
[
"--requirements",
"requirements-for-test.txt",
"--toml",
"pyproject.toml",
"--extras",
"test",
]
)
assert pip_upgraded
if install_type == "both":
assert order == ["requirements", "pyproject"]
else:
assert installing == install_type
@pytest.mark.parametrize(
("extras", "expected"),
[
([], ["-m", "pip", "install", "-e", "."]),
(["test"], ["-m", "pip", "install", "-e", ".[test]"]),
(["test", "doc"], ["-m", "pip", "install", "-e", ".[test,doc]"]),
],
)
def test_toml_args(extras, expected):
importlib.reload(create_venv)
actual = []
def run_process(args, error_message):
nonlocal actual
actual = args[1:]
create_venv.run_process = run_process
create_venv.install_toml(sys.executable, extras)
assert actual == expected
@pytest.mark.parametrize(
("extras", "expected"),
[
([], []),
(
["requirements/test.txt"],
[[sys.executable, "-m", "pip", "install", "-r", "requirements/test.txt"]],
),
(
["requirements/test.txt", "requirements/doc.txt"],
[
[sys.executable, "-m", "pip", "install", "-r", "requirements/test.txt"],
[sys.executable, "-m", "pip", "install", "-r", "requirements/doc.txt"],
],
),
],
)
def test_requirements_args(extras, expected):
importlib.reload(create_venv)
actual = []
def run_process(args, error_message):
nonlocal actual
actual.append(args)
create_venv.run_process = run_process
create_venv.install_requirements(sys.executable, extras)
assert actual == expected
def test_create_venv_missing_pip():
importlib.reload(create_venv)
create_venv.venv_exists = lambda _n: True
create_venv.is_installed = lambda module: module != "pip"
download_pip_pyz_called = False
def download_pip_pyz(name):
nonlocal download_pip_pyz_called
download_pip_pyz_called = True
assert name == create_venv.VENV_NAME
create_venv.download_pip_pyz = download_pip_pyz
run_process_called = False
def run_process(args, error_message):
if "install" in args and "pip" in args:
nonlocal run_process_called
run_process_called = True
pip_pyz_path = os.fspath(create_venv.CWD / create_venv.VENV_NAME / "pip.pyz")
assert args[1:] == [pip_pyz_path, "install", "pip"]
assert error_message == "CREATE_VENV.INSTALL_PIP_FAILED"
create_venv.run_process = run_process
create_venv.main([])
@contextlib.contextmanager
def redirect_io(stream: str, new_stream):
"""Redirect stdio streams to a custom stream."""
old_stream = getattr(sys, stream)
setattr(sys, stream, new_stream)
yield
setattr(sys, stream, old_stream)
class CustomIO(io.TextIOWrapper):
"""Custom stream object to replace stdio."""
name: str = "customio"
def __init__(self, name: str, encoding="utf-8", newline=None):
self._buffer = io.BytesIO()
self._buffer.name = name
super().__init__(self._buffer, encoding=encoding, newline=newline)
def close(self):
"""Provide this close method which is used by some tools."""
# This is intentionally empty.
def get_value(self) -> str:
"""Returns value from the buffer as string."""
self.seek(0)
return self.read()
def test_requirements_from_stdin():
importlib.reload(create_venv)
cli_requirements = [f"cli-requirement{i}.txt" for i in range(3)]
args = argparse.Namespace()
args.__dict__.update({"stdin": True, "requirements": cli_requirements})
stdin_requirements = [f"stdin-requirement{i}.txt" for i in range(20)]
text = json.dumps({"requirements": stdin_requirements})
str_input = CustomIO("<stdin>", encoding="utf-8", newline="\n")
with redirect_io("stdin", str_input):
str_input.write(text)
str_input.seek(0)
actual = create_venv.get_requirements_from_args(args)
assert actual == stdin_requirements + cli_requirements