def "correct versions for: initial state: #initialState, invalidate location: #invalidateLocation"() {
        updateVersions(*initialState)

        def changedLocationsWithAncestors = changedLocations.collectMany { locationWithAncestors(it) } as Set
        def versionsBefore = (changedLocationsWithAncestors + unchangedLocations + invalidateLocation).<String, Long, String> collectEntries {
            [(it): getVersion(it)]
        }