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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..f560f2e --- /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 103260fce95bf5db1c35fb2371983087d85dd611 2019-07-13 18:25:30 bdbaddog" + +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:  | 
