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Diffstat (limited to 'src/engine/SCons/Platform/virtualenvTests.py')
-rw-r--r-- | src/engine/SCons/Platform/virtualenvTests.py | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/src/engine/SCons/Platform/virtualenvTests.py b/src/engine/SCons/Platform/virtualenvTests.py new file mode 100644 index 0000000..891fdb3 --- /dev/null +++ b/src/engine/SCons/Platform/virtualenvTests.py @@ -0,0 +1,243 @@ +# +# 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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 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: |