# Test the module type

import unittest

from test.test_support import run_unittest

import sys

ModuleType = type(sys)

class ModuleTests(unittest.TestCase):

    def test_uninitialized(self):

        # An uninitialized module has no __dict__ or __name__,

        # and __doc__ is None

        foo = ModuleType.__new__(ModuleType)

        self.failUnless(foo.__dict__ is None)

        try:

            s = foo.__name__

            self.fail("__name__ = %s" % repr(s))

        except AttributeError:

            pass

        self.assertEqual(foo.__doc__, ModuleType.__doc__)

    def test_no_docstring(self):

        # Regularly initialized module, no docstring

        foo = ModuleType("foo")

        self.assertEqual(foo.__name__, "foo")

        self.assertEqual(foo.__doc__, None)

        self.assertEqual(foo.__dict__, {"__name__": "foo", "__doc__": None})

    def test_ascii_docstring(self):

        # ASCII docstring

        foo = ModuleType("foo", "foodoc")

        self.assertEqual(foo.__name__, "foo")

        self.assertEqual(foo.__doc__, "foodoc")

        self.assertEqual(foo.__dict__,

                         {"__name__": "foo", "__doc__": "foodoc"})

    def test_unicode_docstring(self):

        # Unicode docstring

        foo = ModuleType("foo", u"foodoc\u1234")

        self.assertEqual(foo.__name__, "foo")

        self.assertEqual(foo.__doc__, u"foodoc\u1234")

        self.assertEqual(foo.__dict__,

                         {"__name__": "foo", "__doc__": u"foodoc\u1234"})

    def test_reinit(self):

        # Reinitialization should not replace the __dict__

        foo = ModuleType("foo", u"foodoc\u1234")

        foo.bar = 42

        d = foo.__dict__

        foo.__init__("foo", "foodoc")

        self.assertEqual(foo.__name__, "foo")

        self.assertEqual(foo.__doc__, "foodoc")

        self.assertEqual(foo.bar, 42)

        self.assertEqual(foo.__dict__,

              {"__name__": "foo", "__doc__": "foodoc", "bar": 42})

        self.failUnless(foo.__dict__ is d)

def test_main():

    run_unittest(ModuleTests)

if __name__ == '__main__':

    test_main()