DatabaseFactory class for Simple.Data + Impromptu

databasefactory.cs

static class DatabaseFactory
{
    public static IDatabase Create()
    {
        Database.UseMockAdapter(CreateMockAdapter());

        // This single line of code applies all these interfaces
        return Impromptu.ActLike<IDatabase>(Database.Open());
    }

    private static InMemoryAdapter CreateMockAdapter()
    {
        var inmem = new InMemoryAdapter(StringComparer.OrdinalIgnoreCase);
        inmem.SetAutoIncrementKeyColumn("Customers", "Id");
        inmem.SetAutoIncrementKeyColumn("Employees", "Id");
        inmem.Join.Master("Customers", "Id", "Employees").Detail("Employees", "EmployerId", "Employer");
        return inmem;
    }
}