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import virtualenv
from mock import patch, Mock
def test_version():
"""Should have a version string"""
assert virtualenv.virtualenv_version, "Should have version"
@patch('os.path.exists')
def test_resolve_interpreter_with_absolute_path(mock_exists):
"""Should return absolute path if given and exists"""
mock_exists.return_value = True
virtualenv.is_executable = Mock(return_value=True)
exe = virtualenv.resolve_interpreter("/usr/bin/python42")
assert exe == "/usr/bin/python42", "Absolute path should return as is"
mock_exists.assert_called_with("/usr/bin/python42")
virtualenv.is_executable.assert_called_with("/usr/bin/python42")
@patch('os.path.exists')
def test_resolve_intepreter_with_nonexistant_interpreter(mock_exists):
"""Should exit when with absolute path if not exists"""
mock_exists.return_value = False
try:
virtualenv.resolve_interpreter("/usr/bin/python42")
assert False, "Should raise exception"
except SystemExit:
pass
mock_exists.assert_called_with("/usr/bin/python42")
@patch('os.path.exists')
def test_resolve_intepreter_with_invalid_interpreter(mock_exists):
"""Should exit when with absolute path if not exists"""
mock_exists.return_value = True
virtualenv.is_executable = Mock(return_value=False)
try:
virtualenv.resolve_interpreter("/usr/bin/python42")
assert False, "Should raise exception"
except SystemExit:
pass
mock_exists.assert_called_with("/usr/bin/python42")
virtualenv.is_executable.assert_called_with("/usr/bin/python42")
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