import pytest

from app import create_app
from app.extensions import db as _db


@pytest.fixture(scope="session")
def app():
    """Create application for testing."""
    flask_app = create_app("testing")
    flask_app.config["TESTING"] = True

    with flask_app.app_context():
        _db.create_all()
        yield flask_app
        _db.drop_all()


@pytest.fixture(scope="function")
def db(app):
    """Provide a clean database for each test."""
    with app.app_context():
        yield _db
        _db.session.rollback()
        # Clean all tables
        for table in reversed(_db.metadata.sorted_tables):
            _db.session.execute(table.delete())
        _db.session.commit()


@pytest.fixture(scope="function")
def client(app, db):
    """Create test client."""
    return app.test_client()