**Colinealidad** significa que tres o más puntos se encuentran en una misma línea recta. En otras palabras, si se puede trazar una línea recta que pase por todos los puntos dados sin cambiar de dirección, esos puntos son colineales.

Definición


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

class TestTask(unittest.TestCase):
    def test_true_collinear_diagonal(self):
        import user_code
        importlib.reload(user_code)
        result = user_code.are_collinear((0, 0), (1, 1), (2, 2))
        _dynamic_test(
            self,
            result is True,
            "Correctly returns True for diagonal collinear points.",
            f"Expected True for (0,0), (1,1), (2,2), got {result}.",
        )

    def test_false_non_collinear(self):
        import user_code
        importlib.reload(user_code)
        result = user_code.are_collinear((0, 0), (1, 2), (2, 1))
        _dynamic_test(
            self,
            result is False,
            "Correctly returns False for non-collinear points.",
            f"Expected False for (0,0), (1,2), (2,1), got {result}.",
        )

    def test_true_horizontal(self):
        import user_code
        importlib.reload(user_code)
        result = user_code.are_collinear((1, 5), (3, 5), (100, 5))
        _dynamic_test(
            self,
            result is True,
            "Correctly returns True for horizontal collinear points.",
            f"Expected True for (1,5), (3,5), (100,5), got {result}.",
        )

    def test_true_vertical(self):
        import user_code
        importlib.reload(user_code)
        result = user_code.are_collinear((2, -3), (2, 0), (2, 99))
        _dynamic_test(
            self,
            result is True,
            "Correctly returns True for vertical collinear points.",
            f"Expected True for (2,-3), (2,0), (2,99), got {result}.",
        )

    def test_true_negative_coords(self):
        import user_code
        importlib.reload(user_code)
        result = user_code.are_collinear((-1, -2), (-2, -4), (-3, -6))
        _dynamic_test(
            self,
            result is True,
            "Correctly returns True for negative collinear points.",
            f"Expected True for (-1,-2), (-2,-4), (-3,-6), got {result}.",
        )

    def test_false_mixed_coords(self):
        import user_code
        importlib.reload(user_code)
        result = user_code.are_collinear((-2, 1), (0, 0), (1, 2))
        _dynamic_test(
            self,
            result is False,
            "Correctly returns False for mixed coordinate non-collinear points.",
            f"Expected False for (-2,1), (0,0), (1,2), got {result}.",
        )

    def test_true_all_same_point(self):
        import user_code
        importlib.reload(user_code)
        result = user_code.are_collinear((5, 5), (5, 5), (5, 5))
        _dynamic_test(
            self,
            result is True,
            "Correctly returns True when all points are identical.",
            f"Expected True for (5,5), (5,5), (5,5), got {result}.",
        )

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

Aprende los fundamentos de la modelización geométrica utilizando Python. Explora cómo representar, manipular y aproximar figuras geométricas de forma programática. Este curso abarca formas básicas, transformaciones y técnicas prácticas de aproximación, haciendo que los conceptos geométricos sean accesibles e interactivos.

Comience con los conceptos fundamentales del modelado geométrico y cómo Python puede utilizarse para representar y manipular formas básicas.

Profundiza en las transformaciones geométricas como la traslación, la rotación y la escala, y observa cómo afectan a las figuras en Python.

Aprenda a aproximar curvas y formas complejas utilizando polígonos y otras técnicas en Python.

Challenge: Colinealidad de Puntos

Solución