import sqlite3

from backend.app.database import apply_migrations, get_schema_version


def test_database_migrations_are_versioned_and_idempotent():
    connection = sqlite3.connect(':memory:')

    apply_migrations(connection)
    assert get_schema_version(connection) == 1
    tables = {
        row[0]
        for row in connection.execute(
            "SELECT name FROM sqlite_master WHERE type = 'table'"
        )
    }
    assert {'users', 'tokens', 'links', 'plugins', 'user_plugin_config'} <= tables

    apply_migrations(connection)
    assert get_schema_version(connection) == 1

    connection.close()