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test_core.py
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test_core.py
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import json
import os
import sys
import pytest
from hatch.utils.structures import EnvVars
from hatch.venv.core import VirtualEnv
def test_initialization_does_not_create(temp_dir, platform):
venv_dir = temp_dir / 'venv'
venv = VirtualEnv(venv_dir, platform)
assert not venv.exists()
with pytest.raises(OSError, match='Unable to locate executables directory'):
_ = venv.executables_directory
def test_remove_non_existent_no_error(temp_dir, platform):
venv_dir = temp_dir / 'venv'
venv = VirtualEnv(venv_dir, platform)
venv.remove()
def test_creation(temp_dir, platform):
venv_dir = temp_dir / 'venv'
venv = VirtualEnv(venv_dir, platform)
venv.create(sys.executable)
assert venv_dir.is_dir()
assert venv.exists()
def test_executables_directory(temp_dir, platform):
venv_dir = temp_dir / 'venv'
venv = VirtualEnv(venv_dir, platform)
venv.create(sys.executable)
assert venv.executables_directory.is_dir()
for entry in venv.executables_directory.iterdir():
if entry.name.startswith('py'):
break
else: # no cov
raise AssertionError('Unable to locate Python executable')
def test_activation(temp_dir, platform):
venv_dir = temp_dir / 'venv'
venv = VirtualEnv(venv_dir, platform)
venv.create(sys.executable)
with EnvVars(exclude=VirtualEnv.IGNORED_ENV_VARS):
os.environ['PATH'] = str(temp_dir)
os.environ['VIRTUAL_ENV'] = 'foo'
for env_var in VirtualEnv.IGNORED_ENV_VARS:
os.environ[env_var] = 'foo'
venv.activate()
assert os.environ['PATH'] == f'{venv.executables_directory}{os.pathsep}{temp_dir}'
assert os.environ['VIRTUAL_ENV'] == str(venv_dir)
for env_var in VirtualEnv.IGNORED_ENV_VARS:
assert env_var not in os.environ
venv.deactivate()
assert os.environ['PATH'] == str(temp_dir)
assert os.environ['VIRTUAL_ENV'] == 'foo'
for env_var in VirtualEnv.IGNORED_ENV_VARS:
assert os.environ[env_var] == 'foo'
def test_activation_path_env_var_missing(temp_dir, platform):
venv_dir = temp_dir / 'venv'
venv = VirtualEnv(venv_dir, platform)
venv.create(sys.executable)
with EnvVars(exclude=VirtualEnv.IGNORED_ENV_VARS):
os.environ.pop('PATH', None)
os.environ['VIRTUAL_ENV'] = 'foo'
for env_var in VirtualEnv.IGNORED_ENV_VARS:
os.environ[env_var] = 'foo'
venv.activate()
assert os.environ['PATH'] == str(venv.executables_directory)
assert os.environ['VIRTUAL_ENV'] == str(venv_dir)
for env_var in VirtualEnv.IGNORED_ENV_VARS:
assert env_var not in os.environ
venv.deactivate()
assert 'PATH' not in os.environ
assert os.environ['VIRTUAL_ENV'] == 'foo'
for env_var in VirtualEnv.IGNORED_ENV_VARS:
assert os.environ[env_var] == 'foo'
def test_context_manager(temp_dir, platform, default_virtualenv_installed_packages):
venv_dir = temp_dir / 'venv'
venv = VirtualEnv(venv_dir, platform)
venv.create(sys.executable)
with EnvVars(exclude=VirtualEnv.IGNORED_ENV_VARS):
os.environ['PATH'] = str(temp_dir)
os.environ['VIRTUAL_ENV'] = 'foo'
for env_var in VirtualEnv.IGNORED_ENV_VARS:
os.environ[env_var] = 'foo'
with venv:
assert os.environ['PATH'] == f'{venv.executables_directory}{os.pathsep}{temp_dir}'
assert os.environ['VIRTUAL_ENV'] == str(venv_dir)
for env_var in VirtualEnv.IGNORED_ENV_VARS:
assert env_var not in os.environ
# Run here while we have cleanup
output = platform.run_command(['pip', 'freeze'], check=True, capture_output=True).stdout.decode('utf-8')
assert output.strip().count('==') == len(default_virtualenv_installed_packages)
assert os.environ['PATH'] == str(temp_dir)
assert os.environ['VIRTUAL_ENV'] == 'foo'
for env_var in VirtualEnv.IGNORED_ENV_VARS:
assert os.environ[env_var] == 'foo'
def test_creation_allow_system_packages(temp_dir, platform):
venv_dir = temp_dir / 'venv'
venv = VirtualEnv(venv_dir, platform)
venv.create(sys.executable, allow_system_packages=True)
with venv:
output = platform.run_command(['pip', 'freeze'], check=True, capture_output=True).stdout.decode('utf-8')
assert output.strip().count('==') > 0
def test_python_data(temp_dir, platform):
venv_dir = temp_dir / 'venv'
venv = VirtualEnv(venv_dir, platform)
venv.create(sys.executable)
with venv:
output = platform.run_command(
['python', '-W', 'ignore', '-'],
check=True,
capture_output=True,
input=b'import json,sys;print(json.dumps([path for path in sys.path if path]))',
).stdout.decode('utf-8')
assert venv.environment is venv.environment
assert venv.sys_path is venv.sys_path
assert venv.environment['sys_platform'] == sys.platform
assert venv.sys_path == json.loads(output)