Issue #2461: added tests for distutils.util

tests/test_util.py

+"""Tests for distutils.util."""
+# not covered yet:
+#    - byte_compile
+#
+import os
+import sys
+import unittest
+
+from distutils.errors import DistutilsPlatformError
+
+from distutils.util import get_platform
+from distutils.util import convert_path
+from distutils.util import change_root
+from distutils.util import check_environ
+from distutils.util import split_quoted
+from distutils.util import strtobool
+from distutils.util import rfc822_escape
+
+from distutils import util # used to patch _environ_checked
+
+class utilTestCase(unittest.TestCase):
+
+    def setUp(self):
+        # saving the environment
+        self.name = os.name
+        self.platform = sys.platform
+        self.version = sys.version
+        self.sep = os.sep
+        self.environ = os.environ
+        self.join = os.path.join
+        self.isabs = os.path.isabs
+        self.splitdrive = os.path.splitdrive
+
+        # patching os.uname
+        if hasattr(os, 'uname'):
+            self.uname = os.uname
+            self._uname = os.uname()
+            os.uname = self._get_uname
+        else:
+            self.uname = None
+            self._uname = None
+
+    def tearDown(self):
+        # getting back tne environment
+        os.name = self.name
+        sys.platform = self.platform
+        sys.version = self.version
+        os.sep = self.sep
+        os.environ = self.environ
+        os.path.join = self.join
+        os.path.isabs = self.isabs
+        os.path.splitdrive = self.splitdrive
+        if self.uname is not None:
+            os.uname = self.uname
+
+    def _set_uname(self, uname):
+        self._uname = uname
+
+    def _get_uname(self):
+        return self._uname
+
+    def test_get_platform(self):
+
+        # windows XP, 32bits
+        os.name = 'nt'
+        sys.version = ('2.4.4 (#71, Oct 18 2006, 08:34:43) '
+                       '[MSC v.1310 32 bit (Intel)]')
+        sys.platform = 'win32'
+        self.assertEquals(get_platform(), 'win32')
+
+        # windows XP, amd64
+        os.name = 'nt'
+        sys.version = ('2.4.4 (#71, Oct 18 2006, 08:34:43) '
+                       '[MSC v.1310 32 bit (Amd64)]')
+        sys.platform = 'win32'
+        self.assertEquals(get_platform(), 'win-amd64')
+
+        # windows XP, itanium
+        os.name = 'nt'
+        sys.version = ('2.4.4 (#71, Oct 18 2006, 08:34:43) '
+                       '[MSC v.1310 32 bit (Itanium)]')
+        sys.platform = 'win32'
+        self.assertEquals(get_platform(), 'win-ia64')
+
+        # macbook
+        os.name = 'posix'
+        sys.version = ('2.5 (r25:51918, Sep 19 2006, 08:49:13) '
+                       '\n[GCC 4.0.1 (Apple Computer, Inc. build 5341)]')
+        sys.platform = 'darwin'
+        self._set_uname(('Darwin', 'macziade', '8.11.1',
+                   ('Darwin Kernel Version 8.11.1: '
+                    'Wed Oct 10 18:23:28 PDT 2007; '
+                    'root:xnu-792.25.20~1/RELEASE_I386'), 'i386'))
+
+        self.assertEquals(get_platform(), 'macosx-10.3-i386')
+
+        # linux debian sarge
+        os.name = 'posix'
+        sys.version = ('2.3.5 (#1, Jul  4 2007, 17:28:59) '
+                       '\n[GCC 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)]')
+        sys.platform = 'linux2'
+        self._set_uname(('Linux', 'aglae', '2.6.21.1dedibox-r7',
+                    '#1 Mon Apr 30 17:25:38 CEST 2007', 'i686'))
+
+        self.assertEquals(get_platform(), 'linux-i686')
+
+        # XXX more platforms to tests here
+
+    def test_convert_path(self):
+        # linux/mac
+        os.sep = '/'
+        def _join(path):
+            return '/'.join(path)
+        os.path.join = _join
+
+        self.assertEquals(convert_path('/home/to/my/stuff'),
+                          '/home/to/my/stuff')
+
+        # win
+        os.sep = '\\'
+        def _join(*path):
+            return '\\'.join(path)
+        os.path.join = _join
+
+        self.assertRaises(ValueError, convert_path, '/home/to/my/stuff')
+        self.assertRaises(ValueError, convert_path, 'home/to/my/stuff/')
+
+        self.assertEquals(convert_path('home/to/my/stuff'),
+                          'home\\to\\my\\stuff')
+        self.assertEquals(convert_path('.'),
+                          os.curdir)
+
+    def test_change_root(self):
+        # linux/mac
+        os.name = 'posix'
+        def _isabs(path):
+            return path[0] == '/'
+        os.path.isabs = _isabs
+
+        self.assertEquals(change_root('/root', '/old/its/here'),
+                          '/root/old/its/here')
+        self.assertEquals(change_root('/root', 'its/here'),
+                          '/root/its/here')
+
+        # windows
+        os.name = 'nt'
+        def _isabs(path):
+            return path.startswith('c:\\')
+        os.path.isabs = _isabs
+        def _splitdrive(path):
+            if path.startswith('c:'):
+                return ('', path.replace('c:', ''))
+            return ('', path)
+        os.path.splitdrive = _splitdrive
+        def _join(*path):
+            return '\\'.join(path)
+        os.path.join = _join
+
+        self.assertEquals(change_root('c:\\root', 'c:\\old\\its\\here'),
+                          'c:\\root\\old\\its\\here')
+        self.assertEquals(change_root('c:\\root', 'its\\here'),
+                          'c:\\root\\its\\here')
+
+        # BugsBunny os (it's a great os)
+        os.name = 'BugsBunny'
+        self.assertRaises(DistutilsPlatformError,
+                          change_root, 'c:\\root', 'its\\here')
+
+        # XXX platforms to be covered: os2, mac
+
+    def test_check_environ(self):
+        util._environ_checked = 0
+
+        # posix without HOME
+        if os.name == 'posix':  # this test won't run on windows
+            os.environ = {}
+            check_environ()
+
+            import pwd
+            self.assertEquals(os.environ['HOME'],
+                              pwd.getpwuid(os.getuid())[5])
+        else:
+            check_environ()
+
+        self.assertEquals(os.environ['PLAT'], get_platform())
+        self.assertEquals(util._environ_checked, 1)
+
+    def test_split_quoted(self):
+        self.assertEquals(split_quoted('""one"" "two" \'three\' \\four'),
+                          ['one', 'two', 'three', 'four'])
+
+    def test_strtobool(self):
+        yes = ('y', 'Y', 'yes', 'True', 't', 'true', 'True', 'On', 'on', '1')
+        no = ('n', 'no', 'f', 'false', 'off', '0', 'Off', 'No', 'N')
+
+        for y in yes:
+            self.assert_(strtobool(y))
+
+        for n in no:
+            self.assert_(not strtobool(n))
+
+    def test_rfc822_escape(self):
+        header = 'I am a\npoor\nlonesome\nheader\n'
+        res = rfc822_escape(header)
+        wanted = ('I am a%(8s)spoor%(8s)slonesome%(8s)s'
+                  'header%(8s)s') % {'8s': '\n'+8*' '}
+        self.assertEquals(res, wanted)
+
+def test_suite():
+    return unittest.makeSuite(utilTestCase)
+
+if __name__ == "__main__":
+    unittest.main(defaultTest="test_suite")