for (EdgeState dependencyEdge : incomingEdges) {
            StrictVersionConstraints parentStrictVersionConstraints = notNull(dependencyEdge.getFrom().ownStrictVersionConstraints);
            StrictVersionConstraints parentAncestorsStrictVersionConstraints = notNull(dependencyEdge.getFrom().ancestorsStrictVersionConstraints);
            StrictVersionConstraints parentEndorsedStrictVersionConstraints = getEndorsedStrictVersions(dependencyEdge);

        given:
        collection.setFrom('file')

        when:
        actOn(collection)
        def result = collection.files

        then:
        result == [] as Set

        and:
        0 * fileResolver.resolve('file')

        where:
        action         | actOn
        'setFrom()'    | { it.setFrom() }
        'setFrom([])'  | { it.setFrom([]) }

            }

            final QueryContext queryContext = buildQueryContext(queryHelper, queryFieldConfig, fessConfig);

            searchRequestBuilder.setFrom(offset).setSize(size);

            buildTrackTotalHits(fessConfig);
            buildMinScore(fessConfig);

            if (responseFields != null) {