tjh.dev
nixpkgs mirror (for testing)
github.com/NixOS/nixpkgs
nix
1"""
2Python interpreter and environment tests.
3
4These need to be executed with the standard library unittest.
5Third party test runners such as pytest cannot be used because
6that would interfere with the tests.
7"""
8
9import platform
10import sys
11import sysconfig
12import unittest
13import site
14
15
16ENV = "@environment@"
17INTERPRETER = "@interpreter@"
18PYTHON_VERSION = "@pythonVersion@"
19
20IS_VIRTUALENV = @is_virtualenv@
21IS_VENV = @is_venv@
22IS_NIXENV = @is_nixenv@
23IS_PYPY = platform.python_implementation() == "PyPy"
24
25
26class TestCasePython(unittest.TestCase):
27
28 @unittest.skipIf(IS_PYPY, "Executable is incorrect and needs to be fixed.")
29 def test_interpreter(self):
30 self.assertEqual(sys.executable, INTERPRETER)
31
32 @unittest.skipIf(IS_PYPY, "Prefix is incorrect and needs to be fixed.")
33 def test_prefix(self):
34 self.assertEqual(sys.prefix, ENV)
35 self.assertEqual(sys.prefix, sys.exec_prefix)
36
37 def test_site_prefix(self):
38 self.assertTrue(sys.prefix in site.PREFIXES)
39
40 @unittest.skipIf(IS_PYPY or sys.version_info.major==2, "Python 2 does not have base_prefix")
41 def test_base_prefix(self):
42 if IS_VENV or IS_VIRTUALENV:
43 self.assertNotEqual(sys.prefix, sys.base_prefix)
44 else:
45 self.assertEqual(sys.prefix, sys.base_prefix)
46 if IS_NIXENV:
47 self.assertNotEqual(sys.base_prefix, sysconfig.get_config_var('prefix'))
48 else:
49 self.assertEqual(sys.base_prefix, sysconfig.get_config_var('prefix'))
50
51 @unittest.skipIf(sys.version_info.major==3, "sys.real_prefix is only set by virtualenv in case of Python 2.")
52 def test_real_prefix(self):
53 self.assertTrue(hasattr(sys, "real_prefix") == IS_VIRTUALENV)
54
55 def test_python_version(self):
56 self.assertTrue(platform.python_version().startswith(PYTHON_VERSION))
57
58
59if __name__ == "__main__":
60 unittest.main()