def test_set_item_when_item_is_tripled(self):
bow = BagOfWords("ala ala ala")
bow.__setitem__('ala', 10)
self.assertEquals(10, bow.__getitem__('ala'))
def test_set_item_when_item_does_not_exist(self):
bow = BagOfWords("")
bow.__setitem__('ala', 10)
self.assertIsNone(bow.__getitem__('ala'))
def test_get_item_which_does_exist(self):
bow = BagOfWords("ala")
self.assertEquals(1, bow.__getitem__('ala'))
def test_get_item_which_is_tripled(self):
bow = BagOfWords("ala ala ala")
self.assertEquals(3, bow.__getitem__('ala'))
def test_get_item_which_does_not_exist(self):
bow = BagOfWords("")
self.assertIsNone(bow.__getitem__('ala'))
