Re-land: Removed virtualenv from depot_tools

bootstrap/virtualenv/tests/test_virtualenv.py

-import virtualenv
-import optparse
-import os
-import shutil
-import sys
-import tempfile
-from mock import patch, Mock
-
-
-def test_version():
-    """Should have a version string"""
-    assert virtualenv.virtualenv_version, "Should have version"
-
-
-@patch('os.path.exists')
-def test_resolve_interpreter_with_absolute_path(mock_exists):
-    """Should return absolute path if given and exists"""
-    mock_exists.return_value = True
-    virtualenv.is_executable = Mock(return_value=True)
-
-    exe = virtualenv.resolve_interpreter("/usr/bin/python42")
-
-    assert exe == "/usr/bin/python42", "Absolute path should return as is"
-    mock_exists.assert_called_with("/usr/bin/python42")
-    virtualenv.is_executable.assert_called_with("/usr/bin/python42")
-
-
-@patch('os.path.exists')
-def test_resolve_interpreter_with_nonexistent_interpreter(mock_exists):
-    """Should exit when with absolute path if not exists"""
-    mock_exists.return_value = False
-
-    try:
-        virtualenv.resolve_interpreter("/usr/bin/python42")
-        assert False, "Should raise exception"
-    except SystemExit:
-        pass
-
-    mock_exists.assert_called_with("/usr/bin/python42")
-
-
-@patch('os.path.exists')
-def test_resolve_interpreter_with_invalid_interpreter(mock_exists):
-    """Should exit when with absolute path if not exists"""
-    mock_exists.return_value = True
-    virtualenv.is_executable = Mock(return_value=False)
-
-    try:
-        virtualenv.resolve_interpreter("/usr/bin/python42")
-        assert False, "Should raise exception"
-    except SystemExit:
-        pass
-
-    mock_exists.assert_called_with("/usr/bin/python42")
-    virtualenv.is_executable.assert_called_with("/usr/bin/python42")
-
-
-def test_activate_after_future_statements():
-    """Should insert activation line after last future statement"""
-    script = [
-        '#!/usr/bin/env python',
-        'from __future__ import with_statement',
-        'from __future__ import print_function',
-        'print("Hello, world!")'
-    ]
-    assert virtualenv.relative_script(script) == [
-        '#!/usr/bin/env python',
-        'from __future__ import with_statement',
-        'from __future__ import print_function',
-        '',
-        "import os; activate_this=os.path.join(os.path.dirname(os.path.realpath(__file__)), 'activate_this.py'); exec(compile(open(activate_this).read(), activate_this, 'exec'), dict(__file__=activate_this)); del os, activate_this",
-        '',
-        'print("Hello, world!")'
-    ]
-
-
-def test_cop_update_defaults_with_store_false():
-    """store_false options need reverted logic"""
-    class MyConfigOptionParser(virtualenv.ConfigOptionParser):
-        def __init__(self, *args, **kwargs):
-            self.config = virtualenv.ConfigParser.RawConfigParser()
-            self.files = []
-            optparse.OptionParser.__init__(self, *args, **kwargs)
-
-        def get_environ_vars(self, prefix='VIRTUALENV_'):
-            yield ("no_site_packages", "1")
-
-    cop = MyConfigOptionParser()
-    cop.add_option(
-        '--no-site-packages',
-        dest='system_site_packages',
-        action='store_false',
-        help="Don't give access to the global site-packages dir to the "
-             "virtual environment (default)")
-
-    defaults = {}
-    cop.update_defaults(defaults)
-    assert defaults == {'system_site_packages': 0}
-
-def test_install_python_bin():
-    """Should create the right python executables and links"""
-    tmp_virtualenv = tempfile.mkdtemp()
-    try:
-        home_dir, lib_dir, inc_dir, bin_dir = \
-                                virtualenv.path_locations(tmp_virtualenv)
-        virtualenv.install_python(home_dir, lib_dir, inc_dir, bin_dir, False,
-                                  False)
-
-        if virtualenv.is_win:
-            required_executables = [ 'python.exe', 'pythonw.exe']
-        else:
-            py_exe_no_version = 'python'
-            py_exe_version_major = 'python%s' % sys.version_info[0]
-            py_exe_version_major_minor = 'python%s.%s' % (
-                sys.version_info[0], sys.version_info[1])
-            required_executables = [ py_exe_no_version, py_exe_version_major,
-                                     py_exe_version_major_minor ]
-
-        for pth in required_executables:
-            assert os.path.exists(os.path.join(bin_dir, pth)), ("%s should "
-                            "exist in bin_dir" % pth)
-    finally:
-        shutil.rmtree(tmp_virtualenv)
-
-
-def test_always_copy_option():
-    """Should be no symlinks in directory tree"""
-    tmp_virtualenv = tempfile.mkdtemp()
-    ve_path = os.path.join(tmp_virtualenv, 'venv')
-    try:
-        virtualenv.create_environment(ve_path, symlink=False)
-
-        for root, dirs, files in os.walk(tmp_virtualenv):
-            for f in files + dirs:
-                full_name = os.path.join(root, f)
-                assert not os.path.islink(full_name), "%s should not be a" \
-                    " symlink (to %s)" % (full_name, os.readlink(full_name))
-    finally:
-        shutil.rmtree(tmp_virtualenv)