diff --git a/.gitignore b/.gitignore
new file mode 100644
index 000000000..87ec0dcb5
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,19 @@
+# IDE
+.idea/
+
+# Python
+__pycache__/
+*.py[cod]
+
+# Virtual environments
+.venv/
+venv/
+
+# Tests / coverage
+.pytest_cache/
+.coverage
+htmlcov/
+
+# OS
+.DS_Store
+Thumbs.db
diff --git a/1_task/.coverage b/1_task/.coverage
new file mode 100644
index 000000000..045e92c0b
Binary files /dev/null and b/1_task/.coverage differ
diff --git a/1_task/praktikum/README.md b/1_task/praktikum/README.md
new file mode 100644
index 000000000..272081708
--- /dev/null
+++ b/1_task/praktikum/README.md
@@ -0,0 +1,24 @@
+## Задание 1: Юнит-тесты
+
+### Автотесты для проверки программы, которая помогает заказать бургер в Stellar Burgers
+
+### Реализованные сценарии
+
+Созданы юнит-тесты, покрывающие классы `Bun`, `Burger`, `Ingredient`, `Database`
+
+Процент покрытия 100% (отчет: `htmlcov/index.html`)
+
+### Структура проекта
+
+- `praktikum` - пакет, содержащий код программы
+- `tests` - пакет, содержащий тесты, разделенные по классам. Например, `bun_test.py`, `burger_test.py` и т.д.
+
+### Запуск автотестов
+
+**Установка зависимостей**
+
+> `$ pip install -r requirements.txt`
+
+**Запуск автотестов и создание HTML-отчета о покрытии**
+
+>  `$ pytest --cov=praktikum --cov-report=html`
diff --git a/1_task/praktikum/__init__.py b/1_task/praktikum/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/1_task/praktikum/bun.py b/1_task/praktikum/bun.py
new file mode 100644
index 000000000..5504bc1f4
--- /dev/null
+++ b/1_task/praktikum/bun.py
@@ -0,0 +1,15 @@
+class Bun:
+    """
+    Модель булочки для бургера.
+    Булочке можно дать название и назначить цену.
+    """
+
+    def __init__(self, name: str, price: float):
+        self.name = name
+        self.price = price
+
+    def get_name(self) -> str:
+        return self.name
+
+    def get_price(self) -> float:
+        return self.price
diff --git a/1_task/praktikum/burger.py b/1_task/praktikum/burger.py
new file mode 100644
index 000000000..2b3b6a88b
--- /dev/null
+++ b/1_task/praktikum/burger.py
@@ -0,0 +1,48 @@
+from typing import List
+
+from praktikum.bun import Bun
+from praktikum.ingredient import Ingredient
+
+
+class Burger:
+    """
+    Модель бургера.
+    Бургер состоит из булочек и ингредиентов (начинка или соус).
+    Ингредиенты можно перемещать и удалять.
+    Можно распечать чек с информацией о бургере.
+    """
+
+    def __init__(self):
+        self.bun = None
+        self.ingredients: List[Ingredient] = []
+
+    def set_buns(self, bun: Bun):
+        self.bun = bun
+
+    def add_ingredient(self, ingredient: Ingredient):
+        self.ingredients.append(ingredient)
+
+    def remove_ingredient(self, index: int):
+        del self.ingredients[index]
+
+    def move_ingredient(self, index: int, new_index: int):
+        self.ingredients.insert(new_index, self.ingredients.pop(index))
+
+    def get_price(self) -> float:
+        price = self.bun.get_price() * 2
+
+        for ingredient in self.ingredients:
+            price += ingredient.get_price()
+
+        return price
+
+    def get_receipt(self) -> str:
+        receipt: List[str] = [f'(==== {self.bun.get_name()} ====)']
+
+        for ingredient in self.ingredients:
+            receipt.append(f'= {str(ingredient.get_type()).lower()} {ingredient.get_name()} =')
+
+        receipt.append(f'(==== {self.bun.get_name()} ====)\n')
+        receipt.append(f'Price: {self.get_price()}')
+
+        return '\n'.join(receipt)
diff --git a/1_task/praktikum/database.py b/1_task/praktikum/database.py
new file mode 100644
index 000000000..4c75baf71
--- /dev/null
+++ b/1_task/praktikum/database.py
@@ -0,0 +1,33 @@
+from typing import List
+
+from praktikum.bun import Bun
+from praktikum.ingredient import Ingredient
+from praktikum.ingredient_types import INGREDIENT_TYPE_SAUCE, INGREDIENT_TYPE_FILLING
+
+
+class Database:
+    """
+    Класс с методами по работе с базой данных.
+    """
+
+    def __init__(self):
+        self.buns: List[Bun] = []
+        self.ingredients: List[Ingredient] = []
+
+        self.buns.append(Bun("black bun", 100))
+        self.buns.append(Bun("white bun", 200))
+        self.buns.append(Bun("red bun", 300))
+
+        self.ingredients.append(Ingredient(INGREDIENT_TYPE_SAUCE, "hot sauce", 100))
+        self.ingredients.append(Ingredient(INGREDIENT_TYPE_SAUCE, "sour cream", 200))
+        self.ingredients.append(Ingredient(INGREDIENT_TYPE_SAUCE, "chili sauce", 300))
+
+        self.ingredients.append(Ingredient(INGREDIENT_TYPE_FILLING, "cutlet", 100))
+        self.ingredients.append(Ingredient(INGREDIENT_TYPE_FILLING, "dinosaur", 200))
+        self.ingredients.append(Ingredient(INGREDIENT_TYPE_FILLING, "sausage", 300))
+
+    def available_buns(self) -> List[Bun]:
+        return self.buns
+
+    def available_ingredients(self) -> List[Ingredient]:
+        return self.ingredients
diff --git a/1_task/praktikum/ingredient.py b/1_task/praktikum/ingredient.py
new file mode 100644
index 000000000..0e50db8a2
--- /dev/null
+++ b/1_task/praktikum/ingredient.py
@@ -0,0 +1,20 @@
+class Ingredient:
+    """
+    Модель ингредиента.
+    Ингредиент: начинка или соус.
+    У ингредиента есть тип (начинка или соус), название и цена.
+    """
+
+    def __init__(self, ingredient_type: str, name: str, price: float):
+        self.type = ingredient_type
+        self.name = name
+        self.price = price
+
+    def get_price(self) -> float:
+        return self.price
+
+    def get_name(self) -> str:
+        return self.name
+
+    def get_type(self) -> str:
+        return self.type
diff --git a/1_task/praktikum/ingredient_types.py b/1_task/praktikum/ingredient_types.py
new file mode 100644
index 000000000..34940ad5d
--- /dev/null
+++ b/1_task/praktikum/ingredient_types.py
@@ -0,0 +1,7 @@
+"""
+Перечисление с типами ингредиентов.
+SAUCE – соус
+FILLING – начинка
+"""
+INGREDIENT_TYPE_SAUCE = 'SAUCE'
+INGREDIENT_TYPE_FILLING = 'FILLING'
diff --git a/1_task/praktikum/praktikum.py b/1_task/praktikum/praktikum.py
new file mode 100644
index 000000000..ec522fa6d
--- /dev/null
+++ b/1_task/praktikum/praktikum.py
@@ -0,0 +1,41 @@
+from typing import List
+
+from praktikum.bun import Bun
+from praktikum.burger import Burger
+from praktikum.database import Database
+from praktikum.ingredient import Ingredient
+
+
+def main():
+    # Инициализируем базу данных
+    database: Database = Database()
+
+    # Создадим новый бургер
+    burger: Burger = Burger()
+
+    # Считаем список доступных булок из базы данных
+    buns: List[Bun] = database.available_buns()
+
+    # Считаем список доступных ингредиентов из базы данных
+    ingredients: List[Ingredient] = database.available_ingredients()
+
+    # Соберём бургер
+    burger.set_buns(buns[0])
+
+    burger.add_ingredient(ingredients[1])
+    burger.add_ingredient(ingredients[4])
+    burger.add_ingredient(ingredients[3])
+    burger.add_ingredient(ingredients[5])
+
+    # Переместим слой с ингредиентом
+    burger.move_ingredient(2, 1)
+
+    # Удалим ингредиент
+    burger.remove_ingredient(3)
+
+    # Распечатаем рецепт бургера
+    print(burger.get_receipt())
+
+
+if __name__ == "__main__":
+    main()
diff --git a/1_task/requirements.txt b/1_task/requirements.txt
new file mode 100644
index 000000000..e69de29bb
diff --git a/1_task/tests/__init__.py b/1_task/tests/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/1_task/tests/data/__init__.py b/1_task/tests/data/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/1_task/tests/data/test_data.py b/1_task/tests/data/test_data.py
new file mode 100644
index 000000000..5bcba71b7
--- /dev/null
+++ b/1_task/tests/data/test_data.py
@@ -0,0 +1,28 @@
+# buns
+BLACK_BUN_NAME = "black bun"
+BLACK_BUN_PRICE = 100
+
+WHITE_BUN_NAME = "white bun"
+WHITE_BUN_PRICE = 200
+
+RED_BUN_NAME = "red bun"
+RED_BUN_PRICE = 300
+
+# ingredients
+HOT_SAUCE_NAME = "hot sauce"
+HOT_SAUCE_PRICE = 50
+
+CUTLET_NAME = "cutlet"
+CUTLET_PRICE = 200
+
+SAUSAGE_NAME = "sausage"
+SAUSAGE_PRICE = 300
+
+# receipt
+EXPECTED_RECEIPT_SINGLE_SAUCE = (
+    "(==== black bun ====)\n"
+    "= sauce hot sauce =\n"
+    "(==== black bun ====)\n"
+    "\n"
+    "Price: 250"
+)
diff --git a/1_task/tests/test_bun.py b/1_task/tests/test_bun.py
new file mode 100644
index 000000000..a17d7036f
--- /dev/null
+++ b/1_task/tests/test_bun.py
@@ -0,0 +1,28 @@
+from praktikum.bun import Bun
+
+from tests.data.test_data import (
+    BLACK_BUN_NAME,
+    BLACK_BUN_PRICE,
+    WHITE_BUN_NAME,
+    WHITE_BUN_PRICE,
+    RED_BUN_NAME,
+    RED_BUN_PRICE
+)
+
+
+
+class TestBun:
+
+    def test_bun_init(self):
+        bun = Bun(BLACK_BUN_NAME, BLACK_BUN_PRICE)
+
+        assert bun.name == BLACK_BUN_NAME
+        assert bun.price == BLACK_BUN_PRICE
+
+    def test_get_name(self):
+        bun = Bun(WHITE_BUN_NAME, WHITE_BUN_PRICE)
+        assert bun.get_name() == WHITE_BUN_NAME
+
+    def test_get_price(self):
+        bun = Bun(RED_BUN_NAME, RED_BUN_PRICE)
+        assert bun.get_price() == RED_BUN_PRICE
diff --git a/1_task/tests/test_burger.py b/1_task/tests/test_burger.py
new file mode 100644
index 000000000..c61984057
--- /dev/null
+++ b/1_task/tests/test_burger.py
@@ -0,0 +1,109 @@
+from praktikum.burger import Burger
+from praktikum.bun import Bun
+from praktikum.ingredient import Ingredient
+from praktikum.ingredient_types import (
+    INGREDIENT_TYPE_SAUCE,
+    INGREDIENT_TYPE_FILLING
+)
+
+from tests.data.test_data import (
+    BLACK_BUN_NAME,
+    BLACK_BUN_PRICE,
+    HOT_SAUCE_NAME,
+    HOT_SAUCE_PRICE,
+    CUTLET_NAME,
+    CUTLET_PRICE,
+    EXPECTED_RECEIPT_SINGLE_SAUCE
+)
+
+
+class TestBurger:
+
+    def test_set_buns(self):
+        burger = Burger()
+        bun = Bun(BLACK_BUN_NAME, BLACK_BUN_PRICE)
+
+        burger.set_buns(bun)
+
+        assert burger.bun == bun
+
+    def test_add_ingredient(self):
+        burger = Burger()
+        ingredient = Ingredient(
+            INGREDIENT_TYPE_SAUCE,
+            HOT_SAUCE_NAME,
+            HOT_SAUCE_PRICE
+        )
+
+        burger.add_ingredient(ingredient)
+
+        assert ingredient in burger.ingredients
+
+    def test_remove_ingredient(self):
+        burger = Burger()
+        ingredient = Ingredient(
+            INGREDIENT_TYPE_FILLING,
+            CUTLET_NAME,
+            CUTLET_PRICE
+        )
+
+        burger.add_ingredient(ingredient)
+        burger.remove_ingredient(0)
+
+        assert burger.ingredients == []
+
+    def test_move_ingredient(self):
+        burger = Burger()
+
+        ingredient1 = Ingredient(
+            INGREDIENT_TYPE_SAUCE,
+            HOT_SAUCE_NAME,
+            HOT_SAUCE_PRICE
+        )
+        ingredient2 = Ingredient(
+            INGREDIENT_TYPE_FILLING,
+            CUTLET_NAME,
+            CUTLET_PRICE
+        )
+
+        burger.add_ingredient(ingredient1)
+        burger.add_ingredient(ingredient2)
+        burger.move_ingredient(0, 1)
+
+        assert burger.ingredients == [ingredient2, ingredient1]
+
+    def test_get_price(self):
+        burger = Burger()
+        bun = Bun(BLACK_BUN_NAME, BLACK_BUN_PRICE)
+
+        burger.set_buns(bun)
+        burger.add_ingredient(
+            Ingredient(
+                INGREDIENT_TYPE_SAUCE,
+                HOT_SAUCE_NAME,
+                HOT_SAUCE_PRICE
+            )
+        )
+        burger.add_ingredient(
+            Ingredient(
+                INGREDIENT_TYPE_FILLING,
+                CUTLET_NAME,
+                CUTLET_PRICE
+            )
+        )
+
+        assert burger.get_price() == 450
+
+    def test_get_receipt(self):
+        burger = Burger()
+        bun = Bun(BLACK_BUN_NAME, BLACK_BUN_PRICE)
+        ingredient = Ingredient(
+            INGREDIENT_TYPE_SAUCE,
+            HOT_SAUCE_NAME,
+            HOT_SAUCE_PRICE
+        )
+
+        burger.set_buns(bun)
+        burger.add_ingredient(ingredient)
+
+        assert burger.get_receipt() == EXPECTED_RECEIPT_SINGLE_SAUCE
diff --git a/1_task/tests/test_database.py b/1_task/tests/test_database.py
new file mode 100644
index 000000000..4c18eff0c
--- /dev/null
+++ b/1_task/tests/test_database.py
@@ -0,0 +1,25 @@
+from praktikum.database import Database
+from praktikum.bun import Bun
+from praktikum.ingredient import Ingredient
+
+
+class TestDatabase:
+    def test_database_init(self):
+        database = Database()
+
+        assert len(database.buns) == 3
+        assert len(database.ingredients) == 6
+
+    def test_available_buns(self):
+        database = Database()
+        buns = database.available_buns()
+
+        assert isinstance(buns, list)
+        assert all(isinstance(bun, Bun) for bun in buns)
+
+    def test_available_ingredients(self):
+        database = Database()
+        ingredients = database.available_ingredients()
+
+        assert isinstance(ingredients, list)
+        assert all(isinstance(ingredient, Ingredient) for ingredient in ingredients)
diff --git a/1_task/tests/test_ingredient.py b/1_task/tests/test_ingredient.py
new file mode 100644
index 000000000..5feed1f97
--- /dev/null
+++ b/1_task/tests/test_ingredient.py
@@ -0,0 +1,53 @@
+from praktikum.ingredient import Ingredient
+from praktikum.ingredient_types import (
+    INGREDIENT_TYPE_SAUCE,
+    INGREDIENT_TYPE_FILLING
+)
+
+from tests.data.test_data import (
+    HOT_SAUCE_NAME,
+    HOT_SAUCE_PRICE,
+    CUTLET_NAME,
+    CUTLET_PRICE,
+    SAUSAGE_NAME,
+    SAUSAGE_PRICE
+)
+
+
+
+class TestIngredient:
+
+    def test_ingredient_init(self):
+        ingredient = Ingredient(
+            INGREDIENT_TYPE_SAUCE,
+            HOT_SAUCE_NAME,
+            HOT_SAUCE_PRICE
+        )
+
+        assert ingredient.type == INGREDIENT_TYPE_SAUCE
+        assert ingredient.name == HOT_SAUCE_NAME
+        assert ingredient.price == HOT_SAUCE_PRICE
+
+    def test_get_price(self):
+        ingredient = Ingredient(
+            INGREDIENT_TYPE_FILLING,
+            CUTLET_NAME,
+            CUTLET_PRICE
+        )
+        assert ingredient.get_price() == CUTLET_PRICE
+
+    def test_get_name(self):
+        ingredient = Ingredient(
+            INGREDIENT_TYPE_FILLING,
+            SAUSAGE_NAME,
+            SAUSAGE_PRICE
+        )
+        assert ingredient.get_name() == SAUSAGE_NAME
+
+    def test_get_type(self):
+        ingredient = Ingredient(
+            INGREDIENT_TYPE_SAUCE,
+            HOT_SAUCE_NAME,
+            HOT_SAUCE_PRICE
+        )
+        assert ingredient.get_type() == INGREDIENT_TYPE_SAUCE