S3ObjectSummary objectSummary2 = Mock()
        objectSummary2.getKey() >> '/SNAPSHOT/someOther.jar'
        objectListing.getObjectSummaries() >> [objectSummary, objectSummary2]
        objectListing.getCommonPrefixes() >> ['root/SNAPSHOT']

        S3ResourceResolver resolver = new S3ResourceResolver()

        when:
        def results = resolver.resolveResourceNames(objectListing)

        then:

    private List<String> resolveDirectoryResourceNames(ObjectListing objectListing) {
        ImmutableList.Builder<String> builder = ImmutableList.builder();
        if (objectListing.getCommonPrefixes() != null) {
            for (String prefix : objectListing.getCommonPrefixes()) {
                /**
                 * The common prefixes will also include the prefix of the <code>ObjectListing</code>
                 */