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125 lines
4.2 KiB
Python
125 lines
4.2 KiB
Python
"""
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Test harness for the venv module.
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Copyright (C) 2011-2012 Vinay Sajip.
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"""
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import os
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import os.path
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import shutil
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import sys
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import tempfile
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from test.support import (captured_stdout, captured_stderr, run_unittest,
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can_symlink)
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import unittest
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import venv
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class BaseTest(unittest.TestCase):
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"""Base class for venv tests."""
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def setUp(self):
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self.env_dir = tempfile.mkdtemp()
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if os.name == 'nt':
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self.bindir = 'Scripts'
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self.ps3name = 'pysetup3-script.py'
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self.lib = ('Lib',)
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self.include = 'Include'
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self.exe = 'python.exe'
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else:
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self.bindir = 'bin'
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self.ps3name = 'pysetup3'
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self.lib = ('lib', 'python%s' % sys.version[:3])
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self.include = 'include'
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self.exe = 'python'
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def tearDown(self):
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shutil.rmtree(self.env_dir)
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def run_with_capture(self, func, *args, **kwargs):
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with captured_stdout() as output:
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with captured_stderr() as error:
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func(*args, **kwargs)
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return output.getvalue(), error.getvalue()
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def get_env_file(self, *args):
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return os.path.join(self.env_dir, *args)
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def get_text_file_contents(self, *args):
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with open(self.get_env_file(*args), 'r') as f:
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result = f.read()
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return result
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class BasicTest(BaseTest):
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"""Test venv module functionality."""
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def test_defaults(self):
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"""
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Test the create function with default arguments.
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"""
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def isdir(*args):
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fn = self.get_env_file(*args)
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self.assertTrue(os.path.isdir(fn))
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shutil.rmtree(self.env_dir)
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self.run_with_capture(venv.create, self.env_dir)
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isdir(self.bindir)
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isdir(self.include)
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isdir(*self.lib)
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data = self.get_text_file_contents('pyvenv.cfg')
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if sys.platform == 'darwin' and ('__PYTHONV_LAUNCHER__'
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in os.environ):
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executable = os.environ['__PYTHONV_LAUNCHER__']
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else:
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executable = sys.executable
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path = os.path.dirname(executable)
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self.assertIn('home = %s' % path, data)
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data = self.get_text_file_contents(self.bindir, self.ps3name)
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self.assertTrue(data.startswith('#!%s%s' % (self.env_dir, os.sep)))
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fn = self.get_env_file(self.bindir, self.exe)
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if not os.path.exists(fn): # diagnostics for Windows buildbot failures
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print('Contents of %r:' % self.bindir)
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print(' %r' % os.listdir(self.bindir))
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self.assertTrue(os.path.exists(fn), 'File %r should exist.' % fn)
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def test_overwrite_existing(self):
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"""
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Test control of overwriting an existing environment directory.
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"""
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self.assertRaises(ValueError, venv.create, self.env_dir)
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builder = venv.EnvBuilder(clear=True)
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builder.create(self.env_dir)
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def test_isolation(self):
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"""
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Test isolation from system site-packages
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"""
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for ssp, s in ((True, 'true'), (False, 'false')):
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builder = venv.EnvBuilder(clear=True, system_site_packages=ssp)
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builder.create(self.env_dir)
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data = self.get_text_file_contents('pyvenv.cfg')
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self.assertIn('include-system-site-packages = %s\n' % s, data)
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@unittest.skipUnless(can_symlink(), 'Needs symlinks')
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def test_symlinking(self):
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"""
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Test symlinking works as expected
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"""
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for usl in (False, True):
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builder = venv.EnvBuilder(clear=True, symlinks=usl)
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if (usl and sys.platform == 'darwin' and
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'__PYTHONV_LAUNCHER__' in os.environ):
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self.assertRaises(ValueError, builder.create, self.env_dir)
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else:
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builder.create(self.env_dir)
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fn = self.get_env_file(self.bindir, self.exe)
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# Don't test when False, because e.g. 'python' is always
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# symlinked to 'python3.3' in the env, even when symlinking in
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# general isn't wanted.
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if usl:
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self.assertTrue(os.path.islink(fn))
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def test_main():
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run_unittest(BasicTest)
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if __name__ == "__main__":
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test_main()
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