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

class TestTask(unittest.TestCase):
    def setUp(self):
        import user_code
        importlib.reload(user_code)
        self.triangle = [(1, 1), (4, 1), (2.5, 4)]
        self.angle = 90
        self.rotate_triangle = getattr(user_code, 'rotate_triangle', None)
        self.rotate_point = getattr(user_code, 'rotate_point', None)

    def test_returns_three_points(self):
        import user_code
        importlib.reload(user_code)
        func = getattr(user_code, 'rotate_triangle', None)
        _dynamic_test(
            self,
            callable(func),
            "rotate_triangle is defined and callable",
            "rotate_triangle is not defined or not callable",
        )
        result = func(self.triangle, self.angle)
        _dynamic_test(
            self,
            isinstance(result, list) and len(result) == 3,
            "Returned list contains three points",
            f"Returned value is not a list of three points: {result}",
        )

    def test_rotates_points_by_90(self):
        import user_code
        importlib.reload(user_code)
        func = getattr(user_code, 'rotate_triangle', None)
        rotate_point = getattr(user_code, 'rotate_point', None)
        result = func(self.triangle, self.angle)
        _dynamic_test(
            self,
            isinstance(result, list) and len(result) == 3,
            "Returned list contains three points after rotation",
            f"Returned value is not a list of three points: {result}",
        )
        for i, pt in enumerate(self.triangle):
            expected = rotate_point(pt, 90)
            actual = result[i]
            close = math.isclose(actual[0], expected[0], abs_tol=1e-7) and math.isclose(actual[1], expected[1], abs_tol=1e-7)
            _dynamic_test(
                self,
                close,
                f"Point {pt} is correctly rotated by 90 degrees",
                f"Point {pt} expected {expected}, got {actual}",
            )

    def test_order_of_points_preserved(self):
        import user_code
        importlib.reload(user_code)
        func = getattr(user_code, 'rotate_triangle', None)
        rotate_point = getattr(user_code, 'rotate_point', None)
        result = func(self.triangle, self.angle)
        _dynamic_test(
            self,
            isinstance(result, list) and len(result) == 3,
            "Returned list contains three points after rotation (order test)",
            f"Returned value is not a list of three points: {result}",
        )
        for i in range(3):
            expected = rotate_point(self.triangle[i], 90)
            actual = result[i]
            close = math.isclose(actual[0], expected[0], abs_tol=1e-7) and math.isclose(actual[1], expected[1], abs_tol=1e-7)
            _dynamic_test(
                self,
                close,
                f"Point {i} order and value preserved after rotation",
                f"Order or value mismatch at index {i}: expected {expected}, got {actual}",
            )

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

Leer de basisprincipes van geometrisch modelleren met Python. Ontdek hoe je geometrische figuren programmeermatig kunt representeren, manipuleren en benaderen. Deze cursus behandelt basisvormen, transformaties en praktische benaderingstechnieken, waardoor geometrische concepten toegankelijk en interactief worden.

Maak kennis met de kernconcepten van geometrisch modelleren en hoe Python kan worden gebruikt om basisvormen te representeren en te manipuleren.

Verdiep u in geometrische transformaties zoals translatie, rotatie en schaling, en zie hoe deze vormen beïnvloeden in Python.

Leer hoe je krommen en complexe vormen kunt benaderen met behulp van polygonen en andere technieken in Python.

Uitdaging: Rotatie

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