def test_get_top_n_words_incorrect_numbers(self):
"""
Get top number of words using incorrect number of words parameter
"""
expected = []
actual = get_top_n_words({}, -1)
self.assertEqual(expected, actual)
actual = get_top_n_words({'happy': 2}, 0)
self.assertEqual(expected, actual)
def test_get_top_n_words_same_frequency(self):
"""
Get top number of words with the same frequency check
"""
expected = ['happy', 'man']
actual = get_top_n_words({'happy': 2, 'man': 2}, 2)
self.assertEqual(expected, actual)
expected = ['happy']
actual = get_top_n_words({'happy': 2, 'man': 2}, 1)
self.assertEqual(expected, actual)
def test_get_top_n_words_empty(self):
"""
Get top number of words with empty arguments
"""
expected = []
actual = get_top_n_words({}, 10)
self.assertEqual(expected, actual)
def test_get_top_n_words_more_number(self):
"""
Get top number of words with bigger number of words than in dictionary
"""
expected = ['man', 'happy']
actual = get_top_n_words({'happy': 2, 'man': 3}, 10)
self.assertEqual(expected, actual)
def test_get_top_n_words_ideal(self):
"""
Ideal get top number of words scenario
"""
expected = ['man']
actual = get_top_n_words({'happy': 2, 'man': 3}, 1)
self.assertEqual(expected, actual)
def test_get_top_n_words_bad_inputs(self):
"""
Get top number of words with bad argument inputs
"""
bad_inputs = ['string', (), None, 9, 9.34, True, [None], []]
expected = []
for bad_input in bad_inputs:
actual = get_top_n_words(bad_input, 2)
self.assertEqual(expected, actual)