}
        }

        // initial try, use locally cached metadata

        List<MetadataResult> results = repositorySystem.resolveMetadata(request.getRepositorySession(), requests);
        requests.clear();

        PluginPrefixResult result = processResults(request, trace, results, requests, candidates);

        if (result != null) {

        checkArtifactResult(results.get(2), "artifact-1.0-classifier.zip");
    }

    @Test
    void testResolveMetadata() throws Exception {
        // List<MetadataResult> resolveMetadata( RepositorySystemSession session,
        //                                      Collection<? extends MetadataRequest> requests );
    }

    @Test
    void testInstall() throws Exception {

            metadataRequest.setTrace(trace);
            metadataRequests.add(metadataRequest);
        }

        List<MetadataResult> metadataResults = metadataResolver.resolveMetadata(session, metadataRequests);

        WorkspaceReader workspace = session.getWorkspaceReader();
        if (workspace != null) {
            List<String> versions = workspace.findVersions(request.getArtifact());

            requests.add(new MetadataRequest(metadata, repository, REPOSITORY_CONTEXT).setTrace(trace));
        }

        List<MetadataResult> results = repositorySystem.resolveMetadata(request.getRepositorySession(), requests);

        Versions versions = new Versions();

        for (MetadataResult res : results) {
            ArtifactRepository repository = res.getRequest().getRepository();

                metadataRequest.setTrace(trace);
                metadataReqs.add(metadataRequest);
            }

            List<MetadataResult> metadataResults = metadataResolver.resolveMetadata(session, metadataReqs);

            Map<String, VersionInfo> infos = new HashMap<>();

            for (MetadataResult metadataResult : metadataResults) {