Diplom_1

.gitignore

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+venv/
+__pycache__/
+.pytest_cache/
+htmlcov/
+.coverage

README.md

@@ -4,21 +4,25 @@
 
 ### Реализованные сценарии
 
-Созданы юнит-тесты, покрывающие классы `Bun`, `Burger`, `Ingredient`, `Database`
+Созданы юнит-тесты для класса `Burger`. В тестах используются реальные объекты `Bun` и `Ingredient`, а также моки и параметризация там, где это уместно.
 
-Процент покрытия 100% (отчет: `htmlcov/index.html`)
+Покрытие класса `Burger` — 100%.
 
 ### Структура проекта
 
-- `praktikum` - пакет, содержащий код программы
-- `tests` - пакет, содержащий тесты, разделенные по классам. Например, `bun_test.py`, `burger_test.py` и т.д.
+- `praktikum` — пакет, содержащий код программы
+- `tests/test_burger.py` — юнит-тесты класса `Burger`
 
 ### Запуск автотестов
 
 **Установка зависимостей**
 
-> `$ pip install -r requirements.txt`
+`pip install -r requirements.txt`
 
-**Запуск автотестов и создание HTML-отчета о покрытии**
+**Запуск автотестов**
 
->  `$ pytest --cov=praktikum --cov-report=html`
+`pytest -v`
+
+**Проверка покрытия класса Burger**
+
+`pytest --cov=praktikum.burger --cov-report=term-missing`

pytest.ini

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+[pytest]
+pythonpath = .

requirements.txt

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+pytest
+pytest-cov

tests/test_burger.py

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+import pytest
+from unittest.mock import MagicMock
+
+from praktikum.bun import Bun
+from praktikum.burger import Burger
+from praktikum.ingredient import Ingredient
+from praktikum.ingredient_types import INGREDIENT_TYPE_FILLING, INGREDIENT_TYPE_SAUCE
+
+
+def test_burger_initializes_without_bun():
+    burger = Burger()
+
+    assert burger.bun is None
+
+
+def test_burger_initializes_with_empty_ingredients():
+    burger = Burger()
+
+    assert burger.ingredients == []
+
+
+def test_set_buns_sets_bun():
+    burger = Burger()
+    bun = Bun("black bun", 100)
+
+    burger.set_buns(bun)
+
+    assert burger.bun is bun
+
+
+def test_add_ingredient_adds_ingredient_to_burger():
+    burger = Burger()
+    ingredient = Ingredient(INGREDIENT_TYPE_FILLING, "cutlet", 200)
+
+    burger.add_ingredient(ingredient)
+
+    assert burger.ingredients == [ingredient]
+
+
+def test_remove_ingredient_removes_ingredient_by_index():
+    burger = Burger()
+    ingredient_to_remove = Ingredient(INGREDIENT_TYPE_SAUCE, "hot sauce", 50)
+    ingredient_to_keep = Ingredient(INGREDIENT_TYPE_FILLING, "cutlet", 200)
+    burger.ingredients = [ingredient_to_remove, ingredient_to_keep]
+
+    burger.remove_ingredient(0)
+
+    assert burger.ingredients == [ingredient_to_keep]
+
+
+@pytest.mark.parametrize("index", [1, -2])
+def test_remove_ingredient_with_invalid_index_raises_index_error(index):
+    burger = Burger()
+    ingredient = Ingredient(INGREDIENT_TYPE_FILLING, "cutlet", 200)
+    burger.add_ingredient(ingredient)
+
+    with pytest.raises(IndexError):
+        burger.remove_ingredient(index)
+
+
+def test_move_ingredient_moves_ingredient_to_new_index():
+    burger = Burger()
+    first_ingredient = Ingredient(INGREDIENT_TYPE_SAUCE, "hot sauce", 50)
+    second_ingredient = Ingredient(INGREDIENT_TYPE_FILLING, "cutlet", 200)
+    third_ingredient = Ingredient(INGREDIENT_TYPE_SAUCE, "cheese sauce", 60)
+    burger.ingredients = [first_ingredient, second_ingredient, third_ingredient]
+
+    burger.move_ingredient(0, 2)
+
+    assert burger.ingredients == [second_ingredient, third_ingredient, first_ingredient]
+
+
+@pytest.mark.parametrize("index", [1, -2])
+def test_move_ingredient_with_invalid_source_index_raises_index_error(index):
+    burger = Burger()
+    ingredient = Ingredient(INGREDIENT_TYPE_FILLING, "cutlet", 200)
+    burger.add_ingredient(ingredient)
+
+    with pytest.raises(IndexError):
+        burger.move_ingredient(index, 0)
+
+
+def test_get_price_returns_total_price_with_two_buns_and_all_ingredients():
+    burger = Burger()
+    bun = Bun("black bun", 100.0)
+    sauce = Ingredient(INGREDIENT_TYPE_SAUCE, "hot sauce", 50.0)
+    filling = Ingredient(INGREDIENT_TYPE_FILLING, "cutlet", 200.0)
+    burger.set_buns(bun)
+    burger.add_ingredient(sauce)
+    burger.add_ingredient(filling)
+
+    price = burger.get_price()
+
+    assert price == 450.0
+
+
+def test_get_price_returns_total_with_mocked_bun_and_ingredients():
+    burger = Burger()
+    bun = MagicMock()
+    bun.get_price.return_value = 100.0
+    sauce = MagicMock()
+    sauce.get_price.return_value = 50.0
+    filling = MagicMock()
+    filling.get_price.return_value = 200.0
+    burger.set_buns(bun)
+    burger.add_ingredient(sauce)
+    burger.add_ingredient(filling)
+
+    assert burger.get_price() == 450.0
+
+
+def test_get_receipt_returns_formatted_receipt():
+    burger = Burger()
+    bun = Bun("black bun", 100.0)
+    sauce = Ingredient(INGREDIENT_TYPE_SAUCE, "hot sauce", 50.0)
+    filling = Ingredient(INGREDIENT_TYPE_FILLING, "cutlet", 200.0)
+    burger.set_buns(bun)
+    burger.add_ingredient(sauce)
+    burger.add_ingredient(filling)
+
+    receipt = burger.get_receipt()
+
+    expected_receipt = (
+        "(==== black bun ====)\n"
+        "= sauce hot sauce =\n"
+        "= filling cutlet =\n"
+        "(==== black bun ====)\n"
+        "\n"
+        "Price: 450.0"
+    )
+    assert receipt == expected_receipt