diff --git a/.coverage b/.coverage
new file mode 100644
index 000000000..7512f0b56
Binary files /dev/null and b/.coverage differ
diff --git a/__init__.py b/praktikum/__init__.py
similarity index 100%
rename from __init__.py
rename to praktikum/__init__.py
diff --git a/praktikum/__pycache__/__init__.cpython-314.pyc b/praktikum/__pycache__/__init__.cpython-314.pyc
new file mode 100644
index 000000000..1ba0ec768
Binary files /dev/null and b/praktikum/__pycache__/__init__.cpython-314.pyc differ
diff --git a/praktikum/__pycache__/bun.cpython-314.pyc b/praktikum/__pycache__/bun.cpython-314.pyc
new file mode 100644
index 000000000..3b19c817e
Binary files /dev/null and b/praktikum/__pycache__/bun.cpython-314.pyc differ
diff --git a/praktikum/__pycache__/burger.cpython-314.pyc b/praktikum/__pycache__/burger.cpython-314.pyc
new file mode 100644
index 000000000..55df3c674
Binary files /dev/null and b/praktikum/__pycache__/burger.cpython-314.pyc differ
diff --git a/praktikum/__pycache__/database.cpython-314.pyc b/praktikum/__pycache__/database.cpython-314.pyc
new file mode 100644
index 000000000..fd39e7e40
Binary files /dev/null and b/praktikum/__pycache__/database.cpython-314.pyc differ
diff --git a/praktikum/__pycache__/ingredient.cpython-314.pyc b/praktikum/__pycache__/ingredient.cpython-314.pyc
new file mode 100644
index 000000000..29e2c6097
Binary files /dev/null and b/praktikum/__pycache__/ingredient.cpython-314.pyc differ
diff --git a/praktikum/__pycache__/ingredient_types.cpython-314.pyc b/praktikum/__pycache__/ingredient_types.cpython-314.pyc
new file mode 100644
index 000000000..36096874d
Binary files /dev/null and b/praktikum/__pycache__/ingredient_types.cpython-314.pyc differ
diff --git a/praktikum/__pycache__/praktikum.cpython-314.pyc b/praktikum/__pycache__/praktikum.cpython-314.pyc
new file mode 100644
index 000000000..5b661d4c1
Binary files /dev/null and b/praktikum/__pycache__/praktikum.cpython-314.pyc differ
diff --git a/bun.py b/praktikum/bun.py
similarity index 100%
rename from bun.py
rename to praktikum/bun.py
diff --git a/burger.py b/praktikum/burger.py
similarity index 100%
rename from burger.py
rename to praktikum/burger.py
diff --git a/database.py b/praktikum/database.py
similarity index 100%
rename from database.py
rename to praktikum/database.py
diff --git a/ingredient.py b/praktikum/ingredient.py
similarity index 100%
rename from ingredient.py
rename to praktikum/ingredient.py
diff --git a/ingredient_types.py b/praktikum/ingredient_types.py
similarity index 100%
rename from ingredient_types.py
rename to praktikum/ingredient_types.py
diff --git a/praktikum.py b/praktikum/praktikum.py
similarity index 99%
rename from praktikum.py
rename to praktikum/praktikum.py
index ec522fa6d..4bbeabe68 100644
--- a/praktikum.py
+++ b/praktikum/praktikum.py
@@ -1,5 +1,4 @@
 from typing import List
-
 from praktikum.bun import Bun
 from praktikum.burger import Burger
 from praktikum.database import Database
diff --git a/tests/__pycache__/test_bun.cpython-314-pytest-9.0.3.pyc b/tests/__pycache__/test_bun.cpython-314-pytest-9.0.3.pyc
new file mode 100644
index 000000000..9e1dfc4de
Binary files /dev/null and b/tests/__pycache__/test_bun.cpython-314-pytest-9.0.3.pyc differ
diff --git a/tests/__pycache__/test_burger.cpython-314-pytest-9.0.3.pyc b/tests/__pycache__/test_burger.cpython-314-pytest-9.0.3.pyc
new file mode 100644
index 000000000..d448314a6
Binary files /dev/null and b/tests/__pycache__/test_burger.cpython-314-pytest-9.0.3.pyc differ
diff --git a/tests/__pycache__/test_database.cpython-314-pytest-9.0.3.pyc b/tests/__pycache__/test_database.cpython-314-pytest-9.0.3.pyc
new file mode 100644
index 000000000..1fa67ac22
Binary files /dev/null and b/tests/__pycache__/test_database.cpython-314-pytest-9.0.3.pyc differ
diff --git a/tests/__pycache__/test_ingredient.cpython-314-pytest-9.0.3.pyc b/tests/__pycache__/test_ingredient.cpython-314-pytest-9.0.3.pyc
new file mode 100644
index 000000000..7d78c7e96
Binary files /dev/null and b/tests/__pycache__/test_ingredient.cpython-314-pytest-9.0.3.pyc differ
diff --git a/tests/__pycache__/test_ingredient_types.cpython-314-pytest-9.0.3.pyc b/tests/__pycache__/test_ingredient_types.cpython-314-pytest-9.0.3.pyc
new file mode 100644
index 000000000..a1b90c0c2
Binary files /dev/null and b/tests/__pycache__/test_ingredient_types.cpython-314-pytest-9.0.3.pyc differ
diff --git a/tests/__pycache__/test_praktikum.cpython-314-pytest-9.0.3.pyc b/tests/__pycache__/test_praktikum.cpython-314-pytest-9.0.3.pyc
new file mode 100644
index 000000000..b42f24649
Binary files /dev/null and b/tests/__pycache__/test_praktikum.cpython-314-pytest-9.0.3.pyc differ
diff --git a/tests/test_bun.py b/tests/test_bun.py
new file mode 100644
index 000000000..2b94d33d7
--- /dev/null
+++ b/tests/test_bun.py
@@ -0,0 +1,12 @@
+import pytest
+from praktikum.bun import Bun
+
+class TestBun:
+
+    def test_bun_get_name(self):
+        bun = Bun("Краторная булка", 100)
+        assert bun.get_name() == "Краторная булка"
+
+    def test_bun_get_price(self):
+        bun = Bun("Краторная булка", 100)
+        assert bun.get_price() == 100
diff --git a/tests/test_burger.py b/tests/test_burger.py
new file mode 100644
index 000000000..81832d102
--- /dev/null
+++ b/tests/test_burger.py
@@ -0,0 +1,78 @@
+import pytest
+from unittest.mock import Mock
+from praktikum.burger import Burger
+
+class TestBurger:
+
+    def test_set_buns(self):
+        burger = Burger()
+        mock_bun = Mock()
+        burger.set_buns(mock_bun)
+        assert burger.bun == mock_bun
+
+    def test_add_ingredient(self):
+        burger = Burger()
+        mock_ingredient = Mock()
+        burger.add_ingredient(mock_ingredient)
+        assert mock_ingredient in burger.ingredients
+        assert len(burger.ingredients) == 1
+
+    def test_remove_ingredient(self):
+        burger = Burger()
+        mock_ingredient = Mock()
+        burger.add_ingredient(mock_ingredient)
+        burger.remove_ingredient(0)
+        assert len(burger.ingredients) == 0
+
+    def test_move_ingredient(self):
+        burger = Burger()
+        mock_ing_1 = Mock()
+        mock_ing_2 = Mock()
+        burger.add_ingredient(mock_ing_1)
+        burger.add_ingredient(mock_ing_2)
+        
+        # Перемещаем первый элемент на место второго
+        burger.move_ingredient(0, 1)
+        assert burger.ingredients == [mock_ing_2, mock_ing_1]
+
+    @pytest.mark.parametrize(
+        "bun_price, ingredient_price, expected_total",
+        [
+            (100.0, 50.0, 250.0),   # (100 * 2) + 50 = 250
+            (0.0, 75.0, 75.0),      # (0 * 2) + 75 = 75
+            (250.0, 0.0, 500.0),    # (250 * 2) + 0 = 500
+        ]
+    )
+    def test_get_price(self, bun_price, ingredient_price, expected_total):
+        burger = Burger()
+        
+        mock_bun = Mock()
+        mock_bun.get_price.return_value = bun_price
+        burger.set_buns(mock_bun)
+        
+        mock_ingredient = Mock()
+        mock_ingredient.get_price.return_value = ingredient_price
+        burger.add_ingredient(mock_ingredient)
+        
+        assert burger.get_price() == expected_total
+
+    def test_get_receipt(self):
+        burger = Burger()
+        
+        mock_bun = Mock()
+        mock_bun.get_name.return_value = "black bun"
+        mock_bun.get_price.return_value = 100.0
+        burger.set_buns(mock_bun)
+        
+        mock_ingredient = Mock()
+        mock_ingredient.get_type.return_value = "SAUCE"
+        mock_ingredient.get_name.return_value = "hot sauce"
+        mock_ingredient.get_price.return_value = 50.0
+        burger.add_ingredient(mock_ingredient)
+        
+        receipt = burger.get_receipt()
+        
+        # Строгая сверка вёрстки чека по вашей заготовке
+        assert "(==== black bun ====)" in receipt
+        assert "= sauce hot sauce =" in receipt
+        assert "Price: 250.0" in receipt
diff --git a/tests/test_database.py b/tests/test_database.py
new file mode 100644
index 000000000..7be0b204d
--- /dev/null
+++ b/tests/test_database.py
@@ -0,0 +1,18 @@
+import pytest
+from praktikum.database import Database
+
+class TestDatabase:
+
+    def test_database_available_buns(self):
+        db = Database()
+        buns = db.available_buns()
+        assert isinstance(buns, list)
+        assert len(buns) > 0
+        assert buns[0].get_name() is not None
+
+    def test_database_available_ingredients(self):
+        db = Database()
+        ingredients = db.available_ingredients()
+        assert isinstance(ingredients, list)
+        assert len(ingredients) > 0
+        assert ingredients[0].get_name() is not None
diff --git a/tests/test_ingredient.py b/tests/test_ingredient.py
new file mode 100644
index 000000000..bf3d1420b
--- /dev/null
+++ b/tests/test_ingredient.py
@@ -0,0 +1,16 @@
+import pytest
+from praktikum.ingredient import Ingredient
+
+class TestIngredient:
+
+    def test_ingredient_get_name(self):
+        ingredient = Ingredient("SAUCE", "Соус чили", 50)
+        assert ingredient.get_name() == "Соус чили"
+
+    def test_ingredient_get_price(self):
+        ingredient = Ingredient("SAUCE", "Соус чили", 50)
+        assert ingredient.get_price() == 50
+
+    def test_ingredient_get_type(self):
+        ingredient = Ingredient("SAUCE", "Соус чили", 50)
+        assert ingredient.get_type() == "SAUCE"
diff --git a/tests/test_ingredient_types.py b/tests/test_ingredient_types.py
new file mode 100644
index 000000000..82ddc0049
--- /dev/null
+++ b/tests/test_ingredient_types.py
@@ -0,0 +1,9 @@
+import pytest
+from praktikum import ingredient_types
+
+class TestIngredientTypes:
+
+    def test_ingredient_types_constants(self):
+        
+        assert ingredient_types.INGREDIENT_TYPE_SAUCE == 'SAUCE'
+        assert ingredient_types.INGREDIENT_TYPE_FILLING == 'FILLING'
diff --git a/tests/test_praktikum.py b/tests/test_praktikum.py
new file mode 100644
index 000000000..e58ca73cd
--- /dev/null
+++ b/tests/test_praktikum.py
@@ -0,0 +1,12 @@
+import pytest
+from unittest.mock import patch
+
+from praktikum.praktikum import main
+
+def test_practikum_main_execution():
+
+    with patch("builtins.print") as mock_print:
+       
+        main()
+        
+        mock_print.assert_called_once()