"""
Test for -> Next bigger number with the same digits.
Created by Egor Kostan.
GitHub: https://github.com/ikostan
"""
# REFACTORING NUMBERS STRINGS INTEGERS
import unittest
import allure
from utils.log_func import print_log
from kyu_4.next_bigger_number_with_the_same_digits.next_bigger \
import next_bigger
# pylint: disable-msg=R0801
[docs]
@allure.epic("4 kyu")
@allure.parent_suite('Competent')
@allure.suite("Algorithms")
@allure.sub_suite("Unit Tests")
@allure.feature("String")
@allure.story("Next bigger number with the same digits")
@allure.tag('ALGORITHMS',
'NUMBERS',
'STRINGS',
'INTEGERS',
'MATHEMATICS')
@allure.link(url='https://www.codewars.com/kata/55983863da40caa2c900004e',
name='Source/Kata')
# pylint: enable-msg=R0801
class NextBiggerTestCase(unittest.TestCase):
"""Testing next_bigger function."""
[docs]
def test_next_bigger(self):
"""
Testing next_bigger function.
You have to test a function that takes a positive integer
number and returns the next bigger number formed by the same digits:
12 ==> 21
513 ==> 531
2017 ==> 2071
If no bigger number can be composed using those digits, return -1.
:return:
"""
# pylint: disable-msg=R0801
allure.dynamic.title("Testing next_bigger function")
allure.dynamic.severity(allure.severity_level.NORMAL)
allure.dynamic.description_html(
'<h3>Codewars badge:</h3>'
'<img src="https://www.codewars.com/users/myFirstCode'
'/badges/large">'
'<h3>Test Description:</h3>'
"<p>Testing next_bigger function</p>"
"<p>You have to test a function that takes"
" a positive integer number and returns "
"the next bigger number formed by the same "
"digits:</p>"
"<p>12 ==> 21</p>"
"<p>513 ==> 531</p>"
"<p>2017 ==> 2071</p>"
"<p>If no bigger number can be composed using"
" those digits, return -1</p>")
# pylint: enable-msg=R0801
test_data: tuple = (
(6, -1),
(12, 21),
(513, 531),
(2017, 2071),
(414, 441),
(144, 414),
(6938652, 6952368),
(123456789, 123456798))
for n, expected in test_data:
actual_result = next_bigger(n)
print_log(n=n,
expected=expected,
actual_result=actual_result)
with allure.step(f"Enter an integer ({n}), "
f"generate the result ({actual_result}) and "
f"compare it with expected ({expected})"):
self.assertEqual(expected, actual_result)