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comparison venv/lib/python2.7/site-packages/setuptools/tests/test_sandbox.py @ 0:d67268158946 draft

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planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
author bcclaywell
date Mon, 12 Oct 2015 17:43:33 -0400
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-1:000000000000 0:d67268158946
1 """develop tests
2 """
3 import os
4 import types
5
6 import pytest
7
8 import pkg_resources
9 import setuptools.sandbox
10 from setuptools.sandbox import DirectorySandbox
11
12
13 class TestSandbox:
14
15 def test_devnull(self, tmpdir):
16 sandbox = DirectorySandbox(str(tmpdir))
17 sandbox.run(self._file_writer(os.devnull))
18
19 @staticmethod
20 def _file_writer(path):
21 def do_write():
22 with open(path, 'w') as f:
23 f.write('xxx')
24 return do_write
25
26 def test_win32com(self, tmpdir):
27 """
28 win32com should not be prevented from caching COM interfaces
29 in gen_py.
30 """
31 win32com = pytest.importorskip('win32com')
32 gen_py = win32com.__gen_path__
33 target = os.path.join(gen_py, 'test_write')
34 sandbox = DirectorySandbox(str(tmpdir))
35 try:
36 # attempt to create gen_py file
37 sandbox.run(self._file_writer(target))
38 finally:
39 if os.path.exists(target):
40 os.remove(target)
41
42 def test_setup_py_with_BOM(self):
43 """
44 It should be possible to execute a setup.py with a Byte Order Mark
45 """
46 target = pkg_resources.resource_filename(__name__,
47 'script-with-bom.py')
48 namespace = types.ModuleType('namespace')
49 setuptools.sandbox._execfile(target, vars(namespace))
50 assert namespace.result == 'passed'
51
52 def test_setup_py_with_CRLF(self, tmpdir):
53 setup_py = tmpdir / 'setup.py'
54 with setup_py.open('wb') as stream:
55 stream.write(b'"degenerate script"\r\n')
56 setuptools.sandbox._execfile(str(setup_py), globals())
57
58
59 class TestExceptionSaver:
60 def test_exception_trapped(self):
61 with setuptools.sandbox.ExceptionSaver():
62 raise ValueError("details")
63
64 def test_exception_resumed(self):
65 with setuptools.sandbox.ExceptionSaver() as saved_exc:
66 raise ValueError("details")
67
68 with pytest.raises(ValueError) as caught:
69 saved_exc.resume()
70
71 assert isinstance(caught.value, ValueError)
72 assert str(caught.value) == 'details'
73
74 def test_exception_reconstructed(self):
75 orig_exc = ValueError("details")
76
77 with setuptools.sandbox.ExceptionSaver() as saved_exc:
78 raise orig_exc
79
80 with pytest.raises(ValueError) as caught:
81 saved_exc.resume()
82
83 assert isinstance(caught.value, ValueError)
84 assert caught.value is not orig_exc
85
86 def test_no_exception_passes_quietly(self):
87 with setuptools.sandbox.ExceptionSaver() as saved_exc:
88 pass
89
90 saved_exc.resume()
91
92 def test_unpickleable_exception(self):
93 class CantPickleThis(Exception):
94 "This Exception is unpickleable because it's not in globals"
95
96 with setuptools.sandbox.ExceptionSaver() as saved_exc:
97 raise CantPickleThis('detail')
98
99 with pytest.raises(setuptools.sandbox.UnpickleableException) as caught:
100 saved_exc.resume()
101
102 assert str(caught.value) == "CantPickleThis('detail',)"