??? ?? ??(TDD) ?? ??? ???? Python?? ??? ???? ???????. ?? ?? ??? ???? ?? ? ??? ?? ???? ????? ?????.

TDD ??? ?? ?????? https://osherove.com/tdd-kata-1 ??? ????? ???. ??? ??? ? ?? ??? ??? ?????.

????

???? ??? string_calculator.py? ???/test_string_calculator.py?? ? ?? ??? ????. ??? ???? ???????. ?? add ???? ???? StringCalculator ???? ???? ???.

1??: ? ???? "0"? ???? ???.

unittest ?????? ???? ??????? ?? ? ?? ???? ??? ?????. ???/test_string_calculator.py ??? ?? ?? ??? ?????.

import unittest
from string_calculator import StringCalculator

class TestStringCalculator(unittest.TestCase):
    """Test suite for the StringCalculator class."""

    def setUp(self):
        """
        Create a new instance of StringCalculator for each test.
        Can use static method to avoid creating a new instance.
        """
        self.calculator = StringCalculator()

    def test_empty_string_returns_zero(self):
        """
        Test case: Adding an empty string should return 0.
        Input: "" 
        Expected Output: 0
        """
        self.assertEqual(self.calculator.add(""), 0)

?? string_calculator.py ??? StringCalculator ???? ??? ?????.

class StringCalculator:
    def add(self, numbers:str):
        if not numbers:
            return 0

???? ????? ?? ??? ????.

1. string_calculator.py ? ???/test_string_calculator.py ??? ?? ???? ????? ??? ?????.

2. ????? ?? ????? ???.

3. ?? ??? ???? ???? ?????.
   

python -m unittest discover tests

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???? ???? ??? ?? ??? ?????.

----------------------------------------------------------------------
Ran 1 test in 0.001s

OK

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tests/test_string_calculator.py ??? ?? ?? ????? ???? ?? ??? ??? ?????.

    def test_add_single_number(self):
        """
        Test case: Adding a single number should return the number itself.
        Input: "1"
        Expected Output: 1
        """
        self.assertEqual(self.calculator.add("1"), 1)

    def test_add_two_numbers(self):
        """
        Test case: Adding two numbers should return their sum.
        Input: "1,2"
        Expected Output: 3
        """
        self.assertEqual(self.calculator.add("1,2"),3)

?? ??

?? string_calculator.py ??? add ???? ?????? ?? ?? ? ?? ?? ??? ?????.

class StringCalculator:
    def add(self, numbers:str):
        if not numbers:
            return 0
        '''
        Split the string by commas, convert each value to an integer, 
        and sum them up
        '''
        numbers_list = map(int,numbers.split(',')) 
        return sum(numbers_list)

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tests/test_string_calculator.py ??? ?? ?? ??? ???? ??? ??? ?????.

import unittest
from string_calculator import StringCalculator

class TestStringCalculator(unittest.TestCase):
    """Test suite for the StringCalculator class."""

    def setUp(self):
        """
        Create a new instance of StringCalculator for each test.
        Can use static method to avoid creating a new instance.
        """
        self.calculator = StringCalculator()

    def test_empty_string_returns_zero(self):
        """
        Test case: Adding an empty string should return 0.
        Input: "" 
        Expected Output: 0
        """
        self.assertEqual(self.calculator.add(""), 0)

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tests/test_string_calculator.py ??? ?? ??? ??? ???? ???? ? ?? ?? ??? ???? ????? ?????.

class StringCalculator:
    def add(self, numbers:str):
        if not numbers:
            return 0

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python -m unittest discover tests

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tests/test_string_calculator.py ??? ?? ??? ?? ?? ?? ??? ???? ??? ??? ?????.

----------------------------------------------------------------------
Ran 1 test in 0.001s

OK

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    def test_add_single_number(self):
        """
        Test case: Adding a single number should return the number itself.
        Input: "1"
        Expected Output: 1
        """
        self.assertEqual(self.calculator.add("1"), 1)

    def test_add_two_numbers(self):
        """
        Test case: Adding two numbers should return their sum.
        Input: "1,2"
        Expected Output: 3
        """
        self.assertEqual(self.calculator.add("1,2"),3)

6??: ?? ??

? ????? ??? ????? add ???? ???? ???. ??? ???? "??? ???? ????"?? ???? ?? ??? ????? ??? ??? ???? ???.

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tests/test_string_calculator.py ??? ?? ?? ??? ???? ??? ??? ?????.

class StringCalculator:
    def add(self, numbers:str):
        if not numbers:
            return 0
        '''
        Split the string by commas, convert each value to an integer, 
        and sum them up
        '''
        numbers_list = map(int,numbers.split(',')) 
        return sum(numbers_list)

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?? add ???? ???? ??? ???? ??? ???? ?? ValueError? ??????.

????? ?? ??? ??? ????.

def test_add_multiple_numbers(self):
    """
    Test case: Adding multiple numbers should return their sum.
    Input: "1,2,3,4,5"
    Expected Output: 15
    """
    self.assertEqual(self.calculator.add("1,2,3,4,5"), 15)

7??: Add ??? ?? ??

? ????? add() ???? ??? ??? ???? GetCalledCount()?? ???? StringCalculator ???? ?????. ?? ??? ???? ??? ? ??? ???? ???? TDD ????? ??????.

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GetCalledCount() ???? ?? ??? ??? ???? ??? ?????. ? ?????? ???? add()? ??? ??? ???? ????? ???? ???.

tests/test_string_calculator.py ??? ?? ?? ???? ?????.

import unittest
from string_calculator import StringCalculator

class TestStringCalculator(unittest.TestCase):
    """Test suite for the StringCalculator class."""

    def setUp(self):
        """
        Create a new instance of StringCalculator for each test.
        Can use static method to avoid creating a new instance.
        """
        self.calculator = StringCalculator()

    def test_empty_string_returns_zero(self):
        """
        Test case: Adding an empty string should return 0.
        Input: "" 
        Expected Output: 0
        """
        self.assertEqual(self.calculator.add(""), 0)

?? ??

?? StringCalculator ???? GetCalledCount() ???? ?????. ? ???? add()? ??? ??? ???? ???.

????? StringCalculator ???? ??? ????.

class StringCalculator:
    def add(self, numbers:str):
        if not numbers:
            return 0

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2. ??? ?? ?? ??? //[delimiter]n ??? ???? ??? ??? ??? ???? ?? ???? ???.

?? ? ? ?? ?? ??? ?? ???? ??? ?? StringCalculator ???? ??? ?????.

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1000?? ? ?? ?? ? ?? ??? ??? ?? ?? ?? ??? ?? ?? ???? ?????. ???/test_string_calculator.py ??? ?? ??? ?????.

python -m unittest discover tests

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1. 1000?? ? ??? ?????.
2. ?? ??? ??? ?? ?? ??? ?????.

????? StringCalculator ???? ??? ????.

----------------------------------------------------------------------
Ran 1 test in 0.001s

OK

10??: ?? ?? ?? ??

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?? ?? ??? ???? ??? ??? ???? ??? ?????. ???/test_string_calculator.py ??? ?? ?? ???? ?????.

    def test_add_single_number(self):
        """
        Test case: Adding a single number should return the number itself.
        Input: "1"
        Expected Output: 1
        """
        self.assertEqual(self.calculator.add("1"), 1)

    def test_add_two_numbers(self):
        """
        Test case: Adding two numbers should return their sum.
        Input: "1,2"
        Expected Output: 3
        """
        self.assertEqual(self.calculator.add("1,2"),3)

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?? ?? ?? ??? ????? add() ???? ?????. ?? ??? [] ??? ???? //[delimiter1][delimiter2]n ??? ?? ?? ?? ??? ???? ???.

?? ???? ?? ????? StringCalculator ???? ??? ????.

class StringCalculator:
    def add(self, numbers:str):
        if not numbers:
            return 0
        '''
        Split the string by commas, convert each value to an integer, 
        and sum them up
        '''
        numbers_list = map(int,numbers.split(',')) 
        return sum(numbers_list)

?????

???? ?? ???? ?? ???? ?? ??? ? ??? ?? ?? ?? ?? ??? ???? ?? ?? ????? ?????.

def test_add_multiple_numbers(self):
    """
    Test case: Adding multiple numbers should return their sum.
    Input: "1,2,3,4,5"
    Expected Output: 15
    """
    self.assertEqual(self.calculator.add("1,2,3,4,5"), 15)

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?? ??? ? ?? ?? ???? ???? ???.

def test_add_numbers_with_newlines(self):
    """
    Test case: Adding numbers separated by newlines should return their sum.
    Input: "1\n2\n3"
    Expected Output: 6
    """
    self.assertEqual(self.calculator.add("1\n2\n3"), 6)

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