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#!python
import math
def lround(n):
return math.floor(n + 0.5)
def task1(str, char):
return lround(100 * str.count(char) / len(str))
import unittest
class TestTask1(unittest.TestCase):
def t(self, str, char, expected):
self.assertEqual(task1(str, char), expected, f"task1('{str}', '{char}')")
def test_1(self): self.t('perl' , 'e', 25)
def test_2(self): self.t('java' , 'a', 50)
def test_3(self): self.t('python' , 'm', 0)
def test_4(self): self.t('ada' , 'a', 67)
def test_5(self): self.t('ballerina' , 'l', 22)
def test_6(self): self.t('analitik' , 'k', 13)
unittest.main()
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