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#! /usr/bin/python3
def reverseword(a, c):
s = a.find(c)
if s == -1:
return a
b = list(a[0:s+1])
b.sort()
b.extend(list(a[s+1:]))
return "".join(b)
import unittest
class TestReverseword(unittest.TestCase):
def test_ex1(self):
self.assertEqual(reverseword("challenge", "e"), "acehllnge", 'example 1')
def test_ex2(self):
self.assertEqual(reverseword("programming", "a"), "agoprrmming", 'example 2')
def test_ex3(self):
self.assertEqual(reverseword("champion", "b"), "champion", 'example 3')
unittest.main()
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