diff --git a/examples/miniapps/fastapi-sqlalchemy/requirements.txt b/examples/miniapps/fastapi-sqlalchemy/requirements.txt
index dfc9d5d1..f2c5ade5 100644
--- a/examples/miniapps/fastapi-sqlalchemy/requirements.txt
+++ b/examples/miniapps/fastapi-sqlalchemy/requirements.txt
@@ -3,3 +3,6 @@ fastapi
 uvicorn
 pyyaml
 sqlalchemy
+pytest
+requests
+pytest-cov
diff --git a/examples/miniapps/fastapi-sqlalchemy/webapp/containers.py b/examples/miniapps/fastapi-sqlalchemy/webapp/containers.py
index 40e3a8c0..a5bf81ca 100644
--- a/examples/miniapps/fastapi-sqlalchemy/webapp/containers.py
+++ b/examples/miniapps/fastapi-sqlalchemy/webapp/containers.py
@@ -13,12 +13,12 @@ class Container(containers.DeclarativeContainer):
 
     db = providers.Singleton(Database, db_url=config.db.url)
 
-    users_repository = providers.Factory(
+    user_repository = providers.Factory(
         UserRepository,
         session_factory=db.provided.session,
     )
 
     user_service = providers.Factory(
         UserService,
-        users_repository=users_repository,
+        user_repository=user_repository,
     )
diff --git a/examples/miniapps/fastapi-sqlalchemy/webapp/services.py b/examples/miniapps/fastapi-sqlalchemy/webapp/services.py
index 3f12cf5e..c48cccbb 100644
--- a/examples/miniapps/fastapi-sqlalchemy/webapp/services.py
+++ b/examples/miniapps/fastapi-sqlalchemy/webapp/services.py
@@ -9,8 +9,8 @@ from .models import User
 
 class UserService:
 
-    def __init__(self, users_repository: UserRepository) -> None:
-        self._repository: UserRepository = users_repository
+    def __init__(self, user_repository: UserRepository) -> None:
+        self._repository: UserRepository = user_repository
 
     def get_users(self) -> Iterator[User]:
         return self._repository.get_all()
diff --git a/examples/miniapps/fastapi-sqlalchemy/webapp/tests.py b/examples/miniapps/fastapi-sqlalchemy/webapp/tests.py
new file mode 100644
index 00000000..fe2e6a12
--- /dev/null
+++ b/examples/miniapps/fastapi-sqlalchemy/webapp/tests.py
@@ -0,0 +1,107 @@
+"""Tests module."""
+
+from unittest import mock
+
+import pytest
+from fastapi.testclient import TestClient
+
+from .repositories import UserRepository, UserNotFoundError
+from .models import User
+from .application import app
+
+
+@pytest.fixture
+def client():
+    yield TestClient(app)
+
+
+def test_get_list(client):
+    repository_mock = mock.Mock(spec=UserRepository)
+    repository_mock.get_all.return_value = [
+        User(id=1, email='test1@email.com', hashed_password='pwd', is_active=True),
+        User(id=2, email='test2@email.com', hashed_password='pwd', is_active=False),
+    ]
+
+    with app.container.user_repository.override(repository_mock):
+        response = client.get('/users')
+
+    assert response.status_code == 200
+    data = response.json()
+    assert data == [
+        {'id': 1, 'email': 'test1@email.com', 'hashed_password': 'pwd', 'is_active': True},
+        {'id': 2, 'email': 'test2@email.com', 'hashed_password': 'pwd', 'is_active': False},
+    ]
+
+
+def test_get_by_id(client):
+    repository_mock = mock.Mock(spec=UserRepository)
+    repository_mock.get_by_id.return_value = User(
+        id=1,
+        email='xyz@email.com',
+        hashed_password='pwd',
+        is_active=True,
+    )
+
+    with app.container.user_repository.override(repository_mock):
+        response = client.get('/users/1')
+
+    assert response.status_code == 200
+    data = response.json()
+    assert data == {'id': 1, 'email': 'xyz@email.com', 'hashed_password': 'pwd', 'is_active': True}
+    repository_mock.get_by_id.assert_called_once_with(1)
+
+
+def test_get_by_id_404(client):
+    repository_mock = mock.Mock(spec=UserRepository)
+    repository_mock.get_by_id.side_effect = UserNotFoundError(1)
+
+    with app.container.user_repository.override(repository_mock):
+        response = client.get('/users/1')
+
+    assert response.status_code == 404
+
+
+@mock.patch('webapp.services.uuid4', return_value='xyz')
+def test_add(_, client):
+    repository_mock = mock.Mock(spec=UserRepository)
+    repository_mock.add.return_value = User(
+        id=1,
+        email='xyz@email.com',
+        hashed_password='pwd',
+        is_active=True,
+    )
+
+    with app.container.user_repository.override(repository_mock):
+        response = client.post('/users')
+
+    assert response.status_code == 201
+    data = response.json()
+    assert data == {'id': 1, 'email': 'xyz@email.com', 'hashed_password': 'pwd', 'is_active': True}
+    repository_mock.add.assert_called_once_with(email='xyz@email.com', password='pwd')
+
+
+def test_remove(client):
+    repository_mock = mock.Mock(spec=UserRepository)
+
+    with app.container.user_repository.override(repository_mock):
+        response = client.delete('/users/1')
+
+    assert response.status_code == 204
+    repository_mock.delete_by_id.assert_called_once_with(1)
+
+
+def test_remove_404(client):
+    repository_mock = mock.Mock(spec=UserRepository)
+    repository_mock.delete_by_id.side_effect = UserNotFoundError(1)
+
+    with app.container.user_repository.override(repository_mock):
+        response = client.delete('/users/1')
+
+    assert response.status_code == 404
+
+
+def test_status(client):
+    response = client.get('/status')
+    assert response.status_code == 200
+    data = response.json()
+    assert data == {'status': 'OK'}