diff --git a/.gitignore b/.gitignore
new file mode 100644
index 000000000..1346d9278
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,239 @@
+### JetBrains template
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider
+# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+
+# User-specific stuff
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/**/usage.statistics.xml
+.idea/**/dictionaries
+.idea/**/shelf
+
+# AWS User-specific
+.idea/**/aws.xml
+
+# Generated files
+.idea/**/contentModel.xml
+
+# Sensitive or high-churn files
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+.idea/**/dbnavigator.xml
+
+# Gradle
+.idea/**/gradle.xml
+.idea/**/libraries
+
+# Gradle and Maven with auto-import
+# When using Gradle or Maven with auto-import, you should exclude module files,
+# since they will be recreated, and may cause churn.  Uncomment if using
+# auto-import.
+# .idea/artifacts
+# .idea/compiler.xml
+# .idea/jarRepositories.xml
+# .idea/modules.xml
+# .idea/*.iml
+# .idea/modules
+# *.iml
+# *.ipr
+
+# CMake
+cmake-build-*/
+
+# Mongo Explorer plugin
+.idea/**/mongoSettings.xml
+
+# File-based project format
+*.iws
+
+# IntelliJ
+out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Cursive Clojure plugin
+.idea/replstate.xml
+
+# SonarLint plugin
+.idea/sonarlint/
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+
+# Editor-based Rest Client
+.idea/httpRequests
+
+# Android studio 3.1+ serialized cache file
+.idea/caches/build_file_checksums.ser
+
+### Python template
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#pdm.lock
+#   pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
+#   in version control.
+#   https://pdm.fming.dev/#use-with-ide
+.pdm.toml
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+.idea/
\ No newline at end of file
diff --git a/conftest.py b/conftest.py
new file mode 100644
index 000000000..921aaf3a3
--- /dev/null
+++ b/conftest.py
@@ -0,0 +1,32 @@
+from unittest.mock import Mock
+import pytest
+from data import MockBun, MockIngredients
+
+
+@pytest.fixture(scope='function')
+def mock_bun():
+    mock_bun = Mock()
+    mock_bun.name = MockBun.name
+    mock_bun.price = MockBun.price
+    return mock_bun
+
+
+@pytest.fixture(scope='function')
+def mock_ingredient():
+    mock_ingredient = Mock()
+    mock_ingredient.name = MockIngredients.name
+    mock_ingredient.price = MockIngredients.price
+    mock_ingredient.ingredient_type = MockIngredients.ingredient_type
+
+    return mock_ingredient
+
+
+@pytest.fixture(scope='function')
+def mock_two_ingredients(mock_ingredient):
+    mock_ingredient_2 = Mock()
+    mock_ingredient_2.name = MockIngredients.name_2
+    mock_ingredient_2.price = MockIngredients.price_2
+    mock_ingredient_2.ingredient_type = MockIngredients.ingredient_type_2
+    mock_ingredients = [mock_ingredient, mock_ingredient_2]
+
+    return mock_ingredients
\ No newline at end of file
diff --git a/data.py b/data.py
new file mode 100644
index 000000000..fe6a3f1ab
--- /dev/null
+++ b/data.py
@@ -0,0 +1,27 @@
+available_buns = [["black bun", 100], ["white bun", 200], ["red bun", 300]]
+
+available_ingredients = [["SAUCE", "hot sauce", 100], ["SAUCE", "sour cream", 200], ["SAUCE", "chili sauce", 300],
+                         ["FILLING", "cutlet", 100], ["FILLING", "dinosaur", 200], ["FILLING", "sausage", 300]]
+
+
+class MockBun:
+    name = "black bun"
+    price = 100
+
+
+class MockIngredients:
+    name = "hot sauce"
+    price = 100
+    ingredient_type = 'SAUCE'
+    name_2 = "dinosaur"
+    price_2 = 200
+    ingredient_type_2 = "FILLING"
+
+
+expected_receipt = (
+        f'(==== black bun ====)\n'
+        f'= sauce hot sauce =\n'
+        f'= filling dinosaur =\n'
+        f'(==== black bun ====)\n\n'
+        f'Price: 500'
+        )
\ No newline at end of file
diff --git a/__init__.py b/praktikum/__init__.py
similarity index 100%
rename from __init__.py
rename to praktikum/__init__.py
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 100%
rename from praktikum.py
rename to praktikum/praktikum.py
diff --git a/reguirements.txt b/reguirements.txt
new file mode 100644
index 000000000..40c360612
--- /dev/null
+++ b/reguirements.txt
@@ -0,0 +1,23 @@
+attrs==23.2.0
+certifi==2024.2.2
+cffi==1.16.0
+colorama==0.4.6
+coverage==7.5.1
+h11==0.14.0
+idna==3.6
+iniconfig==2.0.0
+outcome==1.3.0.post0
+packaging==24.0
+pluggy==1.4.0
+pycparser==2.22
+PySocks==1.7.1
+pytest==8.1.1
+pytest-cov==5.0.0
+selenium==4.19.0
+sniffio==1.3.1
+sortedcontainers==2.4.0
+trio==0.25.0
+trio-websocket==0.11.1
+typing_extensions==4.11.0
+urllib3==2.2.1
+wsproto==1.2.0
\ No newline at end of file
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/tests/tast_database.py b/tests/tast_database.py
new file mode 100644
index 000000000..d391d6b4d
--- /dev/null
+++ b/tests/tast_database.py
@@ -0,0 +1,21 @@
+from praktikum.database import Database
+
+
+class TestDatabase:
+
+    def test_init_bun_list_true(self):
+        database = Database()
+
+        assert database.buns[0].name == "black bun" and database.buns[0].price == 100
+        assert database.buns[1].name == "white bun" and database.buns[1].price == 200
+        assert database.buns[2].name == "red bun" and database.buns[2].price == 300
+
+    def test_init_ingredients_list_true(self):
+        database = Database()
+
+        assert database.ingredients[0].name == "hot sauce" and database.ingredients[0].price == 100
+        assert database.ingredients[1].name == "sour cream" and database.ingredients[1].price == 200
+        assert database.ingredients[2].name == "chili sauce" and database.ingredients[2].price == 300
+        assert database.ingredients[3].name == "cutlet" and database.ingredients[3].price == 100
+        assert database.ingredients[4].name == "dinosaur" and database.ingredients[4].price == 200
+        assert database.ingredients[5].name == "sausage" and database.ingredients[5].price == 300
\ No newline at end of file
diff --git a/tests/test_bun.py b/tests/test_bun.py
new file mode 100644
index 000000000..4a3eec956
--- /dev/null
+++ b/tests/test_bun.py
@@ -0,0 +1,20 @@
+import pytest
+from praktikum.bun import Bun
+import data
+
+
+class TestBun:
+
+    @pytest.mark.parametrize('the_bun, the_price', data.available_buns)
+    def test_get_name_true(self, the_bun, the_price):
+        bun = Bun(the_bun, the_price)
+        actual_result = bun.get_name()
+
+        assert actual_result == bun.name
+
+    @pytest.mark.parametrize('the_bun, the_price', data.available_buns)
+    def test_get_price_true(self, the_bun, the_price):
+        bun = Bun(the_bun, the_price)
+        actual_result = bun.get_price()
+
+        assert actual_result == bun.price
\ No newline at end of file
diff --git a/tests/test_burger.py b/tests/test_burger.py
new file mode 100644
index 000000000..cd7ff10de
--- /dev/null
+++ b/tests/test_burger.py
@@ -0,0 +1,57 @@
+from praktikum.burger import Burger
+from data import MockBun, MockIngredients
+import data
+from unittest.mock import patch
+
+
+class TestBurger:
+    def test_set_buns(self, mock_bun):
+        burger = Burger()
+        burger.set_buns(mock_bun)
+
+        assert burger.bun == mock_bun
+
+    def test_add_ingredient(self, mock_ingredient):
+        burger = Burger()
+        burger.add_ingredient(mock_ingredient)
+
+        assert burger.ingredients == [mock_ingredient]
+
+    def test_remove_ingredient(self, mock_two_ingredients):
+        burger = Burger()
+        burger.ingredients = mock_two_ingredients
+        burger.remove_ingredient(0)
+
+        assert len(burger.ingredients) == 1
+
+    def test_move_ingredient(self, mock_two_ingredients):
+        burger = Burger()
+        burger.ingredients = mock_two_ingredients.copy()
+        burger.move_ingredient(1, 0)
+
+        assert burger.ingredients[0] == mock_two_ingredients[1]
+
+    def test_get_price(self, mock_bun, mock_two_ingredients):
+        burger = Burger()
+        mock_bun.get_price.return_value = MockBun.price
+        mock_two_ingredients[0].get_price.return_value = MockIngredients.price
+        mock_two_ingredients[1].get_price.return_value = MockIngredients.price_2
+        burger.bun = mock_bun
+        burger.ingredients = mock_two_ingredients
+        actual_result = burger.get_price()
+
+        assert actual_result == 100 * 2 + 100 + 200
+
+    @patch('praktikum.burger.Burger.get_price', return_value=500)
+    def test_get_receipt(self, mock_get_price, mock_bun, mock_two_ingredients):
+        burger = Burger()
+        mock_bun.get_name.return_value = MockBun.name
+        mock_two_ingredients[0].get_name.return_value = MockIngredients.name
+        mock_two_ingredients[0].get_type.return_value = MockIngredients.ingredient_type
+        mock_two_ingredients[1].get_name.return_value = MockIngredients.name_2
+        mock_two_ingredients[1].get_type.return_value = MockIngredients.ingredient_type_2
+        burger.bun = mock_bun
+        burger.ingredients = mock_two_ingredients
+        actual_result = burger.get_receipt()
+
+        assert actual_result == data.expected_receipt
\ No newline at end of file
diff --git a/tests/test_ingridient.py b/tests/test_ingridient.py
new file mode 100644
index 000000000..9561cf940
--- /dev/null
+++ b/tests/test_ingridient.py
@@ -0,0 +1,27 @@
+from praktikum.ingredient import Ingredient
+import pytest
+import data
+
+
+class TestIngredient:
+
+    @pytest.mark.parametrize('ingredient_type, name, price', data.available_ingredients)
+    def test_get_price(self, ingredient_type, name, price):
+        ingredient = Ingredient(ingredient_type, name, price)
+        actual_result = ingredient.get_price()
+
+        assert actual_result == ingredient.price
+
+    @pytest.mark.parametrize('ingredient_type, name, price', data.available_ingredients)
+    def test_get_name(self, ingredient_type, name, price):
+        ingredient = Ingredient(ingredient_type, name, price)
+        actual_result = ingredient.get_name()
+
+        assert actual_result == ingredient.name
+
+    @pytest.mark.parametrize('ingredient_type, name, price', data.available_ingredients)
+    def test_get_type(self, ingredient_type, name, price):
+        ingredient = Ingredient(ingredient_type, name, price)
+        actual_result = ingredient.get_type()
+
+        assert actual_result == ingredient.type
\ No newline at end of file