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

class TestTask(unittest.TestCase):
    def test_translation_basic(self):
        import user_code
        importlib.reload(user_code)
        polygon = [(0, 0), (1, 0), (1, 1), (0, 1)]
        vector = (2, 3)
        expected = [(2, 3), (3, 3), (3, 4), (2, 4)]
        result = user_code.translate_polygon(polygon, vector)
        _dynamic_test(
            self,
            isinstance(result, list) and result == expected,
            "Correct translation for simple square and vector (2, 3)",
            f"Expected {expected}, got {result}",
        )

    def test_translation_negative_coords(self):
        import user_code
        importlib.reload(user_code)
        polygon = [(-1, -1), (2, -1), (2, 2), (-1, 2)]
        vector = (0, -2)
        expected = [(-1, -3), (2, -3), (2, 0), (-1, 0)]
        result = user_code.translate_polygon(polygon, vector)
        _dynamic_test(
            self,
            isinstance(result, list) and result == expected,
            "Correct translation for polygon with negative coordinates and vector (0, -2)",
            f"Expected {expected}, got {result}",
        )

    def test_empty_polygon(self):
        import user_code
        importlib.reload(user_code)
        polygon = []
        vector = (5, 5)
        expected = []
        result = user_code.translate_polygon(polygon, vector)
        _dynamic_test(
            self,
            isinstance(result, list) and result == expected,
            "Returns empty list for empty polygon input",
            f"Expected empty list, got {result}",
        )

    def test_no_modification_of_original(self):
        import user_code
        importlib.reload(user_code)
        polygon = [(1, 2), (3, 4)]
        polygon_copy = list(polygon)
        vector = (10, 10)
        _ = user_code.translate_polygon(polygon, vector)
        _dynamic_test(
            self,
            polygon == polygon_copy,
            "Original polygon is not modified after translation",
            f"Expected original polygon {polygon_copy}, got {polygon}",
        )

    def test_zero_vector(self):
        import user_code
        importlib.reload(user_code)
        polygon = [(5, 7), (8, 9)]
        vector = (0, 0)
        expected = [(5, 7), (8, 9)]
        result = user_code.translate_polygon(polygon, vector)
        _dynamic_test(
            self,
            isinstance(result, list) and result == expected,
            "Correct translation for zero vector (no change)",
            f"Expected {expected}, 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

Opi geometristen mallinnuksen perusteet Pythonilla. Tutustu siihen, miten geometrisia kuvioita voidaan esittää, käsitellä ja approksimoida ohjelmallisesti. Tämä kurssi kattaa perusmuodot, muunnokset ja käytännön approksimaatiotekniikat, tehden geometrisista käsitteistä saavutettavia ja vuorovaikutteisia.

Aloita geometristen mallinnuksen peruskäsitteillä ja opi, miten Pythonia voidaan käyttää perusmuotojen esittämiseen ja käsittelyyn.

Syvenny geometrisiin muunnoksiin, kuten siirtoon, kiertoon ja skaalaamiseen, ja tarkastele, miten ne vaikuttavat muotoihin Pythonissa.

Opi, kuinka lähestyä käyriä ja monimutkaisia muotoja käyttämällä monikulmioita ja muita tekniikoita Pythonissa.

Challenge: Siirto

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