lib-python.2.7.test.test_ensurepip.py Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of jython-standalone Show documentation
Jython is an implementation of the high-level, dynamic, object-oriented language Python written in 100% Pure Java, and seamlessly integrated with the Java platform. It thus allows you to run Python on any Java platform.
The newest version!
import unittest
import os
import os.path
import contextlib
import sys
import test._mock_backport as mock
import test.test_support

import ensurepip
import ensurepip._uninstall

# pip currently requires ssl support, so we ensure we handle
# it being missing (http://bugs.python.org/issue19744)
ensurepip_no_ssl = test.test_support.import_fresh_module("ensurepip",
                                                         blocked=["ssl"])
try:
    import ssl
except ImportError:
    ssl = None

    def requires_usable_pip(f):
        deco = unittest.skip(ensurepip._MISSING_SSL_MESSAGE)
        return deco(f)
else:
    def requires_usable_pip(f):
        return f


class TestEnsurePipVersion(unittest.TestCase):

    def test_returns_version(self):
        self.assertEqual(ensurepip._PIP_VERSION, ensurepip.version())


class EnsurepipMixin:

    def setUp(self):
        run_pip_patch = mock.patch("ensurepip._run_pip")
        self.run_pip = run_pip_patch.start()
        self.addCleanup(run_pip_patch.stop)

        # Avoid side effects on the actual os module
        real_devnull = os.devnull
        os_patch = mock.patch("ensurepip.os")
        patched_os = os_patch.start()
        self.addCleanup(os_patch.stop)
        patched_os.devnull = real_devnull
        patched_os.path = os.path
        self.os_environ = patched_os.environ = os.environ.copy()


class TestBootstrap(EnsurepipMixin, unittest.TestCase):

    @requires_usable_pip
    def test_basic_bootstrapping(self):
        ensurepip.bootstrap()

        self.run_pip.assert_called_once_with(
            [
                "install", "--no-index", "--find-links",
                mock.ANY, "setuptools", "pip",
            ],
            mock.ANY,
        )

        additional_paths = self.run_pip.call_args[0][1]
        self.assertEqual(len(additional_paths), 2)

    @requires_usable_pip
    def test_bootstrapping_with_root(self):
        ensurepip.bootstrap(root="/foo/bar/")

        self.run_pip.assert_called_once_with(
            [
                "install", "--no-index", "--find-links",
                mock.ANY, "--root", "/foo/bar/",
                "setuptools", "pip",
            ],
            mock.ANY,
        )

    @requires_usable_pip
    def test_bootstrapping_with_user(self):
        ensurepip.bootstrap(user=True)

        self.run_pip.assert_called_once_with(
            [
                "install", "--no-index", "--find-links",
                mock.ANY, "--user", "setuptools", "pip",
            ],
            mock.ANY,
        )

    @requires_usable_pip
    def test_bootstrapping_with_upgrade(self):
        ensurepip.bootstrap(upgrade=True)

        self.run_pip.assert_called_once_with(
            [
                "install", "--no-index", "--find-links",
                mock.ANY, "--upgrade", "setuptools", "pip",
            ],
            mock.ANY,
        )

    @requires_usable_pip
    def test_bootstrapping_with_verbosity_1(self):
        ensurepip.bootstrap(verbosity=1)

        self.run_pip.assert_called_once_with(
            [
                "install", "--no-index", "--find-links",
                mock.ANY, "-v", "setuptools", "pip",
            ],
            mock.ANY,
        )

    @requires_usable_pip
    def test_bootstrapping_with_verbosity_2(self):
        ensurepip.bootstrap(verbosity=2)

        self.run_pip.assert_called_once_with(
            [
                "install", "--no-index", "--find-links",
                mock.ANY, "-vv", "setuptools", "pip",
            ],
            mock.ANY,
        )

    @requires_usable_pip
    def test_bootstrapping_with_verbosity_3(self):
        ensurepip.bootstrap(verbosity=3)

        self.run_pip.assert_called_once_with(
            [
                "install", "--no-index", "--find-links",
                mock.ANY, "-vvv", "setuptools", "pip",
            ],
            mock.ANY,
        )

    @requires_usable_pip
    def test_bootstrapping_with_regular_install(self):
        ensurepip.bootstrap()
        self.assertEqual(self.os_environ["ENSUREPIP_OPTIONS"], "install")

    @requires_usable_pip
    def test_bootstrapping_with_alt_install(self):
        ensurepip.bootstrap(altinstall=True)
        self.assertEqual(self.os_environ["ENSUREPIP_OPTIONS"], "altinstall")

    @requires_usable_pip
    def test_bootstrapping_with_default_pip(self):
        ensurepip.bootstrap(default_pip=True)
        self.assertNotIn("ENSUREPIP_OPTIONS", self.os_environ)

    def test_altinstall_default_pip_conflict(self):
        with self.assertRaises(ValueError):
            ensurepip.bootstrap(altinstall=True, default_pip=True)
        self.assertFalse(self.run_pip.called)

    @requires_usable_pip
    def test_pip_environment_variables_removed(self):
        # ensurepip deliberately ignores all pip environment variables
        # See http://bugs.python.org/issue19734 for details
        self.os_environ["PIP_THIS_SHOULD_GO_AWAY"] = "test fodder"
        ensurepip.bootstrap()
        self.assertNotIn("PIP_THIS_SHOULD_GO_AWAY", self.os_environ)

    @requires_usable_pip
    def test_pip_config_file_disabled(self):
        # ensurepip deliberately ignores the pip config file
        # See http://bugs.python.org/issue20053 for details
        ensurepip.bootstrap()
        self.assertEqual(self.os_environ["PIP_CONFIG_FILE"], os.devnull)


@contextlib.contextmanager
def fake_pip(version=ensurepip._PIP_VERSION):
    if version is None:
        pip = None
    else:
        class FakePip():
            __version__ = version
        pip = FakePip()
    sentinel = object()
    orig_pip = sys.modules.get("pip", sentinel)
    sys.modules["pip"] = pip
    try:
        yield pip
    finally:
        if orig_pip is sentinel:
            del sys.modules["pip"]
        else:
            sys.modules["pip"] = orig_pip


class TestUninstall(EnsurepipMixin, unittest.TestCase):

    def test_uninstall_skipped_when_not_installed(self):
        with fake_pip(None):
            ensurepip._uninstall_helper()
        self.assertFalse(self.run_pip.called)

    def test_uninstall_skipped_with_warning_for_wrong_version(self):
        with fake_pip("not a valid version"):
            with test.test_support.captured_stderr() as stderr:
                ensurepip._uninstall_helper()
        warning = stderr.getvalue().strip()
        self.assertIn("only uninstall a matching version", warning)
        self.assertFalse(self.run_pip.called)

    @requires_usable_pip
    def test_uninstall(self):
        with fake_pip():
            ensurepip._uninstall_helper()

        self.run_pip.assert_called_once_with(
            ["uninstall", "-y", "pip", "setuptools"]
        )

    @requires_usable_pip
    def test_uninstall_with_verbosity_1(self):
        with fake_pip():
            ensurepip._uninstall_helper(verbosity=1)

        self.run_pip.assert_called_once_with(
            ["uninstall", "-y", "-v", "pip", "setuptools"]
        )

    @requires_usable_pip
    def test_uninstall_with_verbosity_2(self):
        with fake_pip():
            ensurepip._uninstall_helper(verbosity=2)

        self.run_pip.assert_called_once_with(
            ["uninstall", "-y", "-vv", "pip", "setuptools"]
        )

    @requires_usable_pip
    def test_uninstall_with_verbosity_3(self):
        with fake_pip():
            ensurepip._uninstall_helper(verbosity=3)

        self.run_pip.assert_called_once_with(
            ["uninstall", "-y", "-vvv", "pip", "setuptools"]
        )

    @requires_usable_pip
    def test_pip_environment_variables_removed(self):
        # ensurepip deliberately ignores all pip environment variables
        # See http://bugs.python.org/issue19734 for details
        self.os_environ["PIP_THIS_SHOULD_GO_AWAY"] = "test fodder"
        with fake_pip():
            ensurepip._uninstall_helper()
        self.assertNotIn("PIP_THIS_SHOULD_GO_AWAY", self.os_environ)

    @requires_usable_pip
    def test_pip_config_file_disabled(self):
        # ensurepip deliberately ignores the pip config file
        # See http://bugs.python.org/issue20053 for details
        with fake_pip():
            ensurepip._uninstall_helper()
        self.assertEqual(self.os_environ["PIP_CONFIG_FILE"], os.devnull)


class TestMissingSSL(EnsurepipMixin, unittest.TestCase):

    def setUp(self):
        sys.modules["ensurepip"] = ensurepip_no_ssl

        @self.addCleanup
        def restore_module():
            sys.modules["ensurepip"] = ensurepip
        super(TestMissingSSL, self).setUp()

    def test_bootstrap_requires_ssl(self):
        self.os_environ["PIP_THIS_SHOULD_STAY"] = "test fodder"
        with self.assertRaisesRegexp(RuntimeError, "requires SSL/TLS"):
            ensurepip_no_ssl.bootstrap()
        self.assertFalse(self.run_pip.called)
        self.assertIn("PIP_THIS_SHOULD_STAY", self.os_environ)

    def test_uninstall_requires_ssl(self):
        self.os_environ["PIP_THIS_SHOULD_STAY"] = "test fodder"
        with self.assertRaisesRegexp(RuntimeError, "requires SSL/TLS"):
            with fake_pip():
                ensurepip_no_ssl._uninstall_helper()
        self.assertFalse(self.run_pip.called)
        self.assertIn("PIP_THIS_SHOULD_STAY", self.os_environ)

    def test_main_exits_early_with_warning(self):
        with test.test_support.captured_stderr() as stderr:
            ensurepip_no_ssl._main(["--version"])
        warning = stderr.getvalue().strip()
        self.assertTrue(warning.endswith("requires SSL/TLS"), warning)
        self.assertFalse(self.run_pip.called)

# Basic testing of the main functions and their argument parsing

EXPECTED_VERSION_OUTPUT = "pip " + ensurepip._PIP_VERSION


class TestBootstrappingMainFunction(EnsurepipMixin, unittest.TestCase):

    @requires_usable_pip
    def test_bootstrap_version(self):
        with test.test_support.captured_stderr() as stderr:
            with self.assertRaises(SystemExit):
                ensurepip._main(["--version"])
        result = stderr.getvalue().strip()
        self.assertEqual(result, EXPECTED_VERSION_OUTPUT)
        self.assertFalse(self.run_pip.called)

    @requires_usable_pip
    def test_basic_bootstrapping(self):
        ensurepip._main([])

        self.run_pip.assert_called_once_with(
            [
                "install", "--no-index", "--find-links",
                mock.ANY, "setuptools", "pip",
            ],
            mock.ANY,
        )

        additional_paths = self.run_pip.call_args[0][1]
        self.assertEqual(len(additional_paths), 2)


class TestUninstallationMainFunction(EnsurepipMixin, unittest.TestCase):

    def test_uninstall_version(self):
        with test.test_support.captured_stderr() as stderr:
            with self.assertRaises(SystemExit):
                ensurepip._uninstall._main(["--version"])
        result = stderr.getvalue().strip()
        self.assertEqual(result, EXPECTED_VERSION_OUTPUT)
        self.assertFalse(self.run_pip.called)

    @requires_usable_pip
    def test_basic_uninstall(self):
        with fake_pip():
            ensurepip._uninstall._main([])

        self.run_pip.assert_called_once_with(
            ["uninstall", "-y", "pip", "setuptools"]
        )


if __name__ == "__main__":
    test.test_support.run_unittest(__name__)