
import unittest
import user_code
import ast
import re   
import importlib
import csv
import unittest
import importlib

class TestTask(unittest.TestCase):
    def test_rectangle_area(self):
        import user_code
        importlib.reload(user_code)
        Rectangle = getattr(user_code, 'Rectangle', None)
        _dynamic_test(
            self,
            Rectangle is not None and callable(Rectangle),
            "Rectangle class is defined",
            "Rectangle class is not defined or not callable",
        )
        rect = Rectangle(4, 5)
        area_method = getattr(rect, 'area', None)
        _dynamic_test(
            self,
            area_method is not None and callable(area_method),
            "area method is defined",
            "area method is not defined or not callable",
        )
        area = rect.area()
        _dynamic_test(
            self,
            area == 20,
            "area method returns correct value for (4, 5)",
            f"Expected area 20, got {area}",
        )

    def test_rectangle_perimeter(self):
        import user_code
        importlib.reload(user_code)
        Rectangle = getattr(user_code, 'Rectangle', None)
        rect = Rectangle(4, 5)
        perimeter_method = getattr(rect, 'perimeter', None)
        _dynamic_test(
            self,
            perimeter_method is not None and callable(perimeter_method),
            "perimeter method is defined",
            "perimeter method is not defined or not callable",
        )
        perimeter = rect.perimeter()
        _dynamic_test(
            self,
            perimeter == 18,
            "perimeter method returns correct value for (4, 5)",
            f"Expected perimeter 18, got {perimeter}",
        )

    def test_rectangle_other_values(self):
        import user_code
        importlib.reload(user_code)
        Rectangle = getattr(user_code, 'Rectangle', None)
        rect = Rectangle(7, 3)
        area = rect.area()
        perimeter = rect.perimeter()
        _dynamic_test(
            self,
            area == 21,
            "area method returns correct value for (7, 3)",
            f"Expected area 21, got {area}",
        )
        _dynamic_test(
            self,
            perimeter == 20,
            "perimeter method returns correct value for (7, 3)",
            f"Expected perimeter 20, got {perimeter}",
        )

def _dynamic_test(test_case, condition, success_message, failure_message):
    if condition:
        test_case._testMethodName = success_message
        test_case.assertTrue(True, success_message)
    else:
        test_case._testMethodName = failure_message
        test_case.fail(failure_message)

def normalize_text(text):
    text = text.lower()
    text = re.sub(r"\\s{2,}", " ", text)
    text = re.sub(r"\\s*([,:?])\\s*", r"\\1 ", text)
    return text.strip()

def change_var(code: str, var_name: str, value: str) -> str:
    tree = ast.parse(code)
    lines = code.splitlines()
    changed = False
    # Collect all assignment nodes to modify
    assign_nodes = [
        (i, node)
        for i, node in enumerate(tree.body)
        if isinstance(node, ast.Assign)
        and any(isinstance(target, ast.Name) and target.id == var_name for target in node.targets)
    ]

    # If nothing to change, return unmodified code
    if not assign_nodes:
        return code

    # Perform replacements for all matching assignments (from last to first to not break line offsets)
    for i, node in reversed(assign_nodes):
        start_line = node.lineno - 1
        line = lines[start_line]
        indent = ' ' * (len(line) - len(line.lstrip()))
        lines[start_line] = f"{indent}{var_name} = {value}"
        next_line = len(lines)
        for next_node in tree.body[i+1:]:
            if hasattr(next_node, 'lineno'):
                next_line = next_node.lineno - 1
                break
        if next_line > start_line + 1:
            lines[start_line+1:next_line] = []
        changed = True

    return '\\n'.join(lines) if changed else code

if __name__ == "__main__":
    unittest.main()


test_main.py

Apprenez à créer des applications propres, sécurisées et évolutives avec la programmation orientée objet en Python. Couvrez les fondamentaux des classes et des objets, puis progressez vers des concepts avancés tels que l'héritage, la composition, le polymorphisme et l'encapsulation. Grâce à des explications claires et des exemples pratiques, développez la capacité de concevoir des programmes Python puissants, maintenables et adaptés à une utilisation réelle.

Découvrez les éléments fondamentaux de la programmation orientée objet en Python. Cette section aborde les classes, les objets, les méthodes et les variables, vous offrant une base solide pour comprendre comment la POO organise et structure le code.

Challenge: Creating and Using Methods

Solution

Challenge: Creating and Using Methods

Solution