import unittest import unittest.mock import test.support import os import os.path import contextlib import sys 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.support.import_fresh_module("ensurepip", blocked=["ssl"]) try: import ssl except ImportError: 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 = unittest.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 = unittest.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", unittest.mock.ANY, "setuptools", "pip", ], unittest.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", unittest.mock.ANY, "--root", "/foo/bar/", "setuptools", "pip", ], unittest.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", unittest.mock.ANY, "--user", "setuptools", "pip", ], unittest.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", unittest.mock.ANY, "--upgrade", "setuptools", "pip", ], unittest.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", unittest.mock.ANY, "-v", "setuptools", "pip", ], unittest.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", unittest.mock.ANY, "-vv", "setuptools", "pip", ], unittest.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", unittest.mock.ANY, "-vvv", "setuptools", "pip", ], unittest.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.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().setUp() def test_bootstrap_requires_ssl(self): self.os_environ["PIP_THIS_SHOULD_STAY"] = "test fodder" with self.assertRaisesRegex(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.assertRaisesRegex(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.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.support.captured_stdout() as stdout: with self.assertRaises(SystemExit): ensurepip._main(["--version"]) result = stdout.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", unittest.mock.ANY, "setuptools", "pip", ], unittest.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.support.captured_stdout() as stdout: with self.assertRaises(SystemExit): ensurepip._uninstall._main(["--version"]) result = stdout.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__": unittest.main()