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#! /usr/bin/python3
def countasterisks(a):
out = 0
active = True
for c in a:
match c:
case '|':
active = not active
case '*':
if active:
out += 1
return out
import unittest
class TestCountasterisks(unittest.TestCase):
def test_ex1(self):
self.assertEqual(countasterisks("p|*e*rl|w**e|*ekly|"), 2, 'example 1')
def test_ex2(self):
self.assertEqual(countasterisks("perl"), 0, 'example 2')
def test_ex3(self):
self.assertEqual(countasterisks("th|ewe|e**|k|l***ych|alleng|e"), 5, 'example 3')
unittest.main()
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