135 lines
4.2 KiB
Python
135 lines
4.2 KiB
Python
"""develop tests"""
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import os
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import types
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import pytest
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import pkg_resources
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import setuptools.sandbox
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class TestSandbox:
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def test_devnull(self, tmpdir):
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with setuptools.sandbox.DirectorySandbox(str(tmpdir)):
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self._file_writer(os.devnull)
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@staticmethod
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def _file_writer(path):
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def do_write():
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with open(path, 'w', encoding="utf-8") as f:
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f.write('xxx')
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return do_write
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def test_setup_py_with_BOM(self):
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"""
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It should be possible to execute a setup.py with a Byte Order Mark
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"""
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target = pkg_resources.resource_filename(__name__, 'script-with-bom.py')
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namespace = types.ModuleType('namespace')
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setuptools.sandbox._execfile(target, vars(namespace))
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assert namespace.result == 'passed'
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def test_setup_py_with_CRLF(self, tmpdir):
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setup_py = tmpdir / 'setup.py'
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with setup_py.open('wb') as stream:
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stream.write(b'"degenerate script"\r\n')
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setuptools.sandbox._execfile(str(setup_py), globals())
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class TestExceptionSaver:
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def test_exception_trapped(self):
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with setuptools.sandbox.ExceptionSaver():
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raise ValueError("details")
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def test_exception_resumed(self):
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with setuptools.sandbox.ExceptionSaver() as saved_exc:
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raise ValueError("details")
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with pytest.raises(ValueError) as caught:
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saved_exc.resume()
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assert isinstance(caught.value, ValueError)
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assert str(caught.value) == 'details'
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def test_exception_reconstructed(self):
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orig_exc = ValueError("details")
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with setuptools.sandbox.ExceptionSaver() as saved_exc:
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raise orig_exc
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with pytest.raises(ValueError) as caught:
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saved_exc.resume()
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assert isinstance(caught.value, ValueError)
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assert caught.value is not orig_exc
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def test_no_exception_passes_quietly(self):
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with setuptools.sandbox.ExceptionSaver() as saved_exc:
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pass
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saved_exc.resume()
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def test_unpickleable_exception(self):
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class CantPickleThis(Exception):
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"This Exception is unpickleable because it's not in globals"
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def __repr__(self):
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return 'CantPickleThis%r' % (self.args,)
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with setuptools.sandbox.ExceptionSaver() as saved_exc:
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raise CantPickleThis('detail')
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with pytest.raises(setuptools.sandbox.UnpickleableException) as caught:
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saved_exc.resume()
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assert str(caught.value) == "CantPickleThis('detail',)"
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def test_unpickleable_exception_when_hiding_setuptools(self):
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"""
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As revealed in #440, an infinite recursion can occur if an unpickleable
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exception while setuptools is hidden. Ensure this doesn't happen.
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"""
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class ExceptionUnderTest(Exception):
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"""
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An unpickleable exception (not in globals).
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"""
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with pytest.raises(setuptools.sandbox.UnpickleableException) as caught:
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with setuptools.sandbox.save_modules():
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setuptools.sandbox.hide_setuptools()
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raise ExceptionUnderTest
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(msg,) = caught.value.args
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assert msg == 'ExceptionUnderTest()'
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def test_sandbox_violation_raised_hiding_setuptools(self, tmpdir):
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"""
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When in a sandbox with setuptools hidden, a SandboxViolation
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should reflect a proper exception and not be wrapped in
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an UnpickleableException.
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"""
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def write_file():
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"Trigger a SandboxViolation by writing outside the sandbox"
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with open('/etc/foo', 'w', encoding="utf-8"):
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pass
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with pytest.raises(setuptools.sandbox.SandboxViolation) as caught:
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with setuptools.sandbox.save_modules():
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setuptools.sandbox.hide_setuptools()
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with setuptools.sandbox.DirectorySandbox(str(tmpdir)):
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write_file()
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cmd, args, kwargs = caught.value.args
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assert cmd == 'open'
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assert args == ('/etc/foo', 'w')
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assert kwargs == {"encoding": "utf-8"}
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msg = str(caught.value)
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assert 'open' in msg
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assert "('/etc/foo', 'w')" in msg
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assert "{'encoding': 'utf-8'}" in msg
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