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Diffstat (limited to 'Lib/test/test_venv.py')
| -rw-r--r-- | Lib/test/test_venv.py | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/Lib/test/test_venv.py b/Lib/test/test_venv.py new file mode 100644 index 0000000..705fd39 --- /dev/null +++ b/Lib/test/test_venv.py @@ -0,0 +1,146 @@ +""" +Test harness for the venv module. + +Copyright (C) 2011-2012 Vinay Sajip. +Licensed to the PSF under a contributor agreement. +""" + +import os +import os.path +import shutil +import sys +import tempfile +from test.support import (captured_stdout, captured_stderr, run_unittest, + can_symlink) +import unittest +import venv + +class BaseTest(unittest.TestCase): + """Base class for venv tests.""" + + def setUp(self): + self.env_dir = tempfile.mkdtemp() + if os.name == 'nt': + self.bindir = 'Scripts' + self.pydocname = 'pydoc.py' + self.lib = ('Lib',) + self.include = 'Include' + else: + self.bindir = 'bin' + self.pydocname = 'pydoc' + self.lib = ('lib', 'python%s' % sys.version[:3]) + self.include = 'include' + if sys.platform == 'darwin' and '__PYVENV_LAUNCHER__' in os.environ: + executable = os.environ['__PYVENV_LAUNCHER__'] + else: + executable = sys.executable + self.exe = os.path.split(executable)[-1] + + def tearDown(self): + shutil.rmtree(self.env_dir) + + def run_with_capture(self, func, *args, **kwargs): + with captured_stdout() as output: + with captured_stderr() as error: + func(*args, **kwargs) + return output.getvalue(), error.getvalue() + + def get_env_file(self, *args): + return os.path.join(self.env_dir, *args) + + def get_text_file_contents(self, *args): + with open(self.get_env_file(*args), 'r') as f: + result = f.read() + return result + +class BasicTest(BaseTest): + """Test venv module functionality.""" + + def isdir(self, *args): + fn = self.get_env_file(*args) + self.assertTrue(os.path.isdir(fn)) + + def test_defaults(self): + """ + Test the create function with default arguments. + """ + shutil.rmtree(self.env_dir) + self.run_with_capture(venv.create, self.env_dir) + self.isdir(self.bindir) + self.isdir(self.include) + self.isdir(*self.lib) + data = self.get_text_file_contents('pyvenv.cfg') + if sys.platform == 'darwin' and ('__PYVENV_LAUNCHER__' + in os.environ): + executable = os.environ['__PYVENV_LAUNCHER__'] + else: + executable = sys.executable + path = os.path.dirname(executable) + self.assertIn('home = %s' % path, data) + data = self.get_text_file_contents(self.bindir, self.pydocname) + self.assertTrue(data.startswith('#!%s%s' % (self.env_dir, os.sep))) + fn = self.get_env_file(self.bindir, self.exe) + if not os.path.exists(fn): # diagnostics for Windows buildbot failures + bd = self.get_env_file(self.bindir) + print('Contents of %r:' % bd) + print(' %r' % os.listdir(bd)) + self.assertTrue(os.path.exists(fn), 'File %r should exist.' % fn) + + def test_overwrite_existing(self): + """ + Test control of overwriting an existing environment directory. + """ + self.assertRaises(ValueError, venv.create, self.env_dir) + builder = venv.EnvBuilder(clear=True) + builder.create(self.env_dir) + + def test_upgrade(self): + """ + Test upgrading an existing environment directory. + """ + builder = venv.EnvBuilder(upgrade=True) + self.run_with_capture(builder.create, self.env_dir) + self.isdir(self.bindir) + self.isdir(self.include) + self.isdir(*self.lib) + fn = self.get_env_file(self.bindir, self.exe) + if not os.path.exists(fn): # diagnostics for Windows buildbot failures + bd = self.get_env_file(self.bindir) + print('Contents of %r:' % bd) + print(' %r' % os.listdir(bd)) + self.assertTrue(os.path.exists(fn), 'File %r should exist.' % fn) + + def test_isolation(self): + """ + Test isolation from system site-packages + """ + for ssp, s in ((True, 'true'), (False, 'false')): + builder = venv.EnvBuilder(clear=True, system_site_packages=ssp) + builder.create(self.env_dir) + data = self.get_text_file_contents('pyvenv.cfg') + self.assertIn('include-system-site-packages = %s\n' % s, data) + + @unittest.skipUnless(can_symlink(), 'Needs symlinks') + def test_symlinking(self): + """ + Test symlinking works as expected + """ + for usl in (False, True): + builder = venv.EnvBuilder(clear=True, symlinks=usl) + if (usl and sys.platform == 'darwin' and + '__PYVENV_LAUNCHER__' in os.environ): + self.assertRaises(ValueError, builder.create, self.env_dir) + else: + builder.create(self.env_dir) + fn = self.get_env_file(self.bindir, self.exe) + # Don't test when False, because e.g. 'python' is always + # symlinked to 'python3.3' in the env, even when symlinking in + # general isn't wanted. + if usl: + self.assertTrue(os.path.islink(fn)) + +def test_main(): + run_unittest(BasicTest) + +if __name__ == "__main__": + test_main() |
