#!/usr/bin/env python
# Copyright 2013 Eygene A. Ryabinkin

import unittest
from offlineimap import globals


class Opt:
    def __init__(self):
        self.one = "baz"
        self.two = 42
        self.three = True


class TestOfflineimapGlobals(unittest.TestCase):

    @classmethod
    def setUpClass(klass):
        klass.o = Opt()
        globals.set_options(klass.o)

    def test_initial_state(self):
        for k in self.o.__dict__.keys():
            self.assertTrue(getattr(self.o, k) ==
                            getattr(globals.options, k))

    def test_object_changes(self):
        self.o.one = "one"
        self.o.two = 119
        self.o.three = False
        return self.test_initial_state()

    def test_modification(self):
        with self.assertRaises(AttributeError):
            globals.options.two = True

    def test_deletion(self):
        with self.assertRaises(RuntimeError):
            del globals.options.three

    def test_nonexistent_key(self):
        with self.assertRaises(AttributeError):
            a = globals.options.nosuchoption

    def test_double_init(self):
        with self.assertRaises(ValueError):
            globals.set_options(True)


if __name__ == "__main__":
    suite = unittest.TestLoader().loadTestsFromTestCase(TestOfflineimapGlobals)
    unittest.TextTestRunner(verbosity=2).run(suite)