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#
# Copyright (c) 2001 - 2019 The SCons Foundation
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
__revision__ = "src/engine/SCons/Platform/virtualenvTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
import SCons.compat
import collections
import unittest
import os
import sys
import SCons.Platform.virtualenv
import SCons.Util
class Environment(collections.UserDict):
def Detect(self, cmd):
return cmd
def AppendENVPath(self, key, value):
if SCons.Util.is_List(value):
value = os.path.pathsep.join(value)
if 'ENV' not in self:
self['ENV'] = {}
current = self['ENV'].get(key)
if not current:
self['ENV'][key] = value
else:
self['ENV'][key] = os.path.pathsep.join([current, value])
def PrependENVPath(self, key, value):
if SCons.Util.is_List(value):
value = os.path.pathsep.join(value)
if 'ENV' not in self:
self['ENV'] = {}
current = self['ENV'].get(key)
if not current:
self['ENV'][key] = value
else:
self['ENV'][key] = os.path.pathsep.join([value, current])
class SysPrefixes(object):
"""Used to temporarily mock sys.prefix, sys.real_prefix and sys.base_prefix"""
def __init__(self, prefix, real_prefix=None, base_prefix=None):
self._prefix = prefix
self._real_prefix = real_prefix
self._base_prefix = base_prefix
def start(self):
self._store()
sys.prefix = self._prefix
if self._real_prefix is None:
if hasattr(sys, 'real_prefix'):
del sys.real_prefix
else:
sys.real_prefix = self._real_prefix
if self._base_prefix is None:
if hasattr(sys, 'base_prefix'):
del sys.base_prefix
else:
sys.base_prefix = self._base_prefix
def stop(self):
self._restore()
def __enter__(self):
self.start()
attrs = ('prefix', 'real_prefix', 'base_prefix')
return {k: getattr(sys, k) for k in attrs if hasattr(sys, k)}
def __exit__(self, *args):
self.stop()
def _store(self):
s = dict()
if hasattr(sys, 'real_prefix'):
s['real_prefix'] = sys.real_prefix
if hasattr(sys, 'base_prefix'):
s['base_prefix'] = sys.base_prefix
s['prefix'] = sys.prefix
self._stored = s
def _restore(self):
s = self._stored
if 'real_prefix' in s:
sys.real_prefix = s['real_prefix']
if 'base_prefix' in s:
sys.base_prefix = s['base_prefix']
if 'prefix' in s:
sys.prefix = s['prefix']
del self._stored
def _p(p):
"""Converts path string **p** from posix format to os-specific format."""
drive = []
if p.startswith('/') and sys.platform == 'win32':
drive = ['C:']
pieces = p.split('/')
return os.path.sep.join(drive + pieces)
class _is_path_in_TestCase(unittest.TestCase):
def test_false(self):
for args in [ ('',''),
('', _p('/foo/bar')),
(_p('/foo/bar'), ''),
(_p('/foo/bar'), _p('/foo/bar')),
(_p('/foo/bar'), _p('/foo/bar/geez')),
(_p('/'), _p('/foo')),
(_p('foo'), _p('foo/bar')) ]:
assert SCons.Platform.virtualenv._is_path_in(*args) is False, "_is_path_in(%r, %r) should be False" % args
def test__true(self):
for args in [ (_p('/foo'), _p('/')),
(_p('/foo/bar'), _p('/foo')),
(_p('/foo/bar/geez'), _p('/foo/bar')),
(_p('/foo//bar//geez'), _p('/foo/bar')),
(_p('/foo/bar/geez'), _p('/foo//bar')),
(_p('/foo/bar/geez'), _p('//foo//bar')) ]:
assert SCons.Platform.virtualenv._is_path_in(*args) is True, "_is_path_in(%r, %r) should be True" % args
class IsInVirtualenvTestCase(unittest.TestCase):
def test_false(self):
# "without wirtualenv" - always false
with SysPrefixes(_p('/prefix')):
for p in [ _p(''),
_p('/foo'),
_p('/prefix'),
_p('/prefix/foo') ]:
assert SCons.Platform.virtualenv.IsInVirtualenv(p) is False, "IsInVirtualenv(%r) should be False" % p
# "with virtualenv"
with SysPrefixes(_p('/virtualenv/prefix'), real_prefix=_p('/real/prefix')):
for p in [ _p(''),
_p('/real/prefix/foo'),
_p('/virtualenv/prefix'),
_p('/virtualenv/prefix/bar/..'),
_p('/virtualenv/prefix/bar/../../bleah'),
_p('/virtualenv/bleah') ]:
assert SCons.Platform.virtualenv.IsInVirtualenv(p) is False, "IsInVirtualenv(%r) should be False" % p
# "with venv"
with SysPrefixes(_p('/virtualenv/prefix'), base_prefix=_p('/base/prefix')):
for p in [ _p(''),
_p('/base/prefix/foo'),
_p('/virtualenv/prefix'),
_p('/virtualenv/prefix/bar/..'),
_p('/virtualenv/prefix/bar/../../bleah'),
_p('/virtualenv/bleah') ]:
assert SCons.Platform.virtualenv.IsInVirtualenv(p) is False, "IsInVirtualenv(%r) should be False" % p
def test_true(self):
# "with virtualenv"
with SysPrefixes(_p('/virtualenv/prefix'), real_prefix=_p('/real/prefix')):
for p in [ _p('/virtualenv/prefix/foo'),
_p('/virtualenv/prefix/foo/bar') ]:
assert SCons.Platform.virtualenv.IsInVirtualenv(p) is True, "IsInVirtualenv(%r) should be True" % p
# "with venv"
with SysPrefixes(_p('/virtualenv/prefix'), base_prefix=_p('/base/prefix')):
for p in [ _p('/virtualenv/prefix/foo'),
_p('/virtualenv/prefix/foo/bar') ]:
assert SCons.Platform.virtualenv.IsInVirtualenv(p) is True, "IsInVirtualenv(%r) should be True" % p
class _inject_venv_pathTestCase(unittest.TestCase):
def path_list(self):
return [
_p('/virtualenv/prefix/bin'),
_p('/virtualenv/prefix'),
_p('/virtualenv/prefix/../bar'),
_p('/home/user/.local/bin'),
_p('/usr/bin'),
_p('/opt/bin')
]
def test_with_path_string(self):
env = Environment()
path_string = os.path.pathsep.join(self.path_list())
with SysPrefixes(_p('/virtualenv/prefix'), real_prefix=_p('/real/prefix')):
SCons.Platform.virtualenv._inject_venv_path(env, path_string)
assert env['ENV']['PATH'] == _p('/virtualenv/prefix/bin'), env['ENV']['PATH']
def test_with_path_list(self):
env = Environment()
with SysPrefixes(_p('/virtualenv/prefix'), real_prefix=_p('/real/prefix')):
SCons.Platform.virtualenv._inject_venv_path(env, self.path_list())
assert env['ENV']['PATH'] == _p('/virtualenv/prefix/bin'), env['ENV']['PATH']
class VirtualenvTestCase(unittest.TestCase):
def test_none(self):
def _msg(given):
return "Virtualenv() should be None, not %s" % repr(given)
with SysPrefixes(_p('/prefix')):
ve = SCons.Platform.virtualenv.Virtualenv()
assert ve is None , _msg(ve)
with SysPrefixes(_p('/base/prefix'), base_prefix=_p('/base/prefix')):
ve = SCons.Platform.virtualenv.Virtualenv()
assert ve is None, _msg(ve)
def test_not_none(self):
def _msg(expected, given):
return "Virtualenv() should == %r, not %s" % (_p(expected), repr(given))
with SysPrefixes(_p('/virtualenv/prefix'), real_prefix=_p('/real/prefix')):
ve = SCons.Platform.virtualenv.Virtualenv()
assert ve == _p('/virtualenv/prefix'), _msg('/virtualenv/prefix', ve)
with SysPrefixes(_p('/same/prefix'), real_prefix=_p('/same/prefix')):
ve = SCons.Platform.virtualenv.Virtualenv()
assert ve == _p('/same/prefix'), _msg('/same/prefix', ve)
with SysPrefixes(_p('/virtualenv/prefix'), base_prefix=_p('/base/prefix')):
ve = SCons.Platform.virtualenv.Virtualenv()
assert ve == _p('/virtualenv/prefix'), _msg('/virtualenv/prefix', ve)
if __name__ == "__main__":
unittest.main()
# Local Variables:
# tab-width:4
# indent-tabs-mode:nil
# End:
# vim: set expandtab tabstop=4 shiftwidth=4:
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