Example #1
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 def test_say_b_when_a(self):
     """Must return b when a"""
     self.assertEqual(LetterChanges('a'), 'b')
Example #2
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 def test_say_c_when_b(self):
     """Must return c when b"""
     self.assertEqual(LetterChanges('b'), 'c')
Example #3
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 def test_say_gvO_when_fun(self):
     """Must return d when c"""
     self.assertEqual(LetterChanges('fun times!'), "gvO Ujnft!")
Example #4
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 def test_say_Ifmmp_when_hello(self):
     """Must return d when c"""
     self.assertEqual(LetterChanges('hello*3'), 'Ifmmp*3')
Example #5
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 def test_say_bca_when_abz(self):
     """Must return d when c"""
     self.assertEqual(LetterChanges('bac'), 'cbd')
Example #6
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 def test_say_a_when_z(self):
     """Must return d when c"""
     self.assertEqual(LetterChanges('z'), 'A')
Example #7
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 def test_say_d_when_c(self):
     """Must return d when c"""
     self.assertEqual(LetterChanges('c'), 'd')