@Test
fun `List owners can see their lists`() {
    val app = startTheApplication(lists)
    app.runScenario(
        frank.canSeeTheList("shopping", shoppingItems),
        bob.canSeeTheList("gardening", gardenItems)
    )
}

@Test
fun `Only owners can see their lists`() {
    val app = startTheApplication(lists)
    app.runScenario(
        frank.cannotSeeTheList("gardening"),
        bob.cannotSeeTheList("shopping")
    )
}