def test_letter_storage_get_id_by_letter_not_str(self):
"""
id is not str get_id_by_letter
"""
letter_storage = LetterStorage()
letter_storage.storage = {'w': 1}
expected = -1
actual = letter_storage.get_id_by_letter(123)
self.assertEqual(expected, actual)
def test_letter_storage_get_id_by_letter_ideal(self):
"""
ideal case for get_id_by_letter
"""
letter_storage = LetterStorage()
letter_storage.storage = {'w': 1}
expected = 1
actual = letter_storage.get_id_by_letter('w')
self.assertEqual(expected, actual)
def test_letter_storage_get_id_by_letter_none(self):
"""
get_id_by_letter none
"""
letter_storage = LetterStorage()
letter_storage.storage = {'w': 1}
expected = -1
actual = letter_storage.get_id_by_letter(None)
self.assertEqual(expected, actual)
def test_letter_storage_put_letter_existing(self):
"""
existing letter is not added to storage
"""
letter_storage = LetterStorage()
letter = 'w'
letter_storage.storage = {'w': 1}
expected = 0
actual = letter_storage._put_letter(letter)
self.assertEqual(letter_storage.storage, {'w': 1})
self.assertEqual(expected, actual)