def test_equals_2(self): self.assertEqual(make_acronym('a42'), 'Not letters')
def test_equals(self): self.assertEqual(make_acronym('Hello codewarrior'), 'HC')
def test_equals_4(self): self.assertEqual(make_acronym([2, 12]), 'Not a string')
def test_equals_5(self): self.assertEqual(make_acronym({'name': 'Abraham'}), 'Not a string')
def test_equals_3(self): self.assertEqual(make_acronym(42), 'Not a string')