* @param repositories the list of repositories to validate, may be {@code null}
     * @return the same list if validation passes, or {@code null} if input was {@code null}
     * @throws IllegalArgumentException if the list contains duplicate repositories
     * @throws IllegalArgumentException if the list contains null repository entries
     */
    default List<RemoteRepository> validate(List<RemoteRepository> repositories) {

 */
@Deprecated
class NewestConflictResolverTest extends AbstractConflictResolverTest {
    // constructors -----------------------------------------------------------

    NewestConflictResolverTest() throws Exception {
        super("newest");
    }

    // tests ------------------------------------------------------------------

    /**
     * Tests that <code>a:2.0</code> wins in the scenario:
     * <pre>

     *
     * @return resulting "clean" graph for the specified scope
     *
     * @since 3.0
     */
    MetadataGraph resolveConflicts(MetadataGraph graph, ArtifactScopeEnum scope)
            throws GraphConflictResolutionException;

    public List<ArtifactRepository> createArtifactRepositories(
            List<Repository> pomRepositories,
            List<ArtifactRepository> externalRepositories,
            ProjectBuildingRequest request)
            throws InvalidRepositoryException {
        List<ArtifactRepository> internalRepositories = new ArrayList<>();

        for (Repository repository : pomRepositories) {

    }

    /*--- START test common metadata ---*/
    @Test
    void mergeEmptyMetadata() throws Exception {
        Metadata metadata = new Metadata();
        assertFalse(metadata.merge(new Metadata()));
    }

    @Test
    void mergeDifferentGAV() throws Exception {
        // merge implicitly assumes that merge is only called on the same GAV and does not perform any validation here!

    @Inject
    private SessionScope sessionScope;

    protected String component() {
        return "installer";
    }

    @Test
    void testArtifactInstallation() throws Exception {
        sessionScope.enter();
        try {
            sessionScope.seed(MavenSession.class, mock(MavenSession.class));

    private JXPathContext context;

    static {
        JXPathContextReferenceImpl.addNodePointerFactory(new Xpp3DomPointerFactory());
    }

    public MojoExecutionXPathContainer(MojoExecution mojoExecution) throws IOException {
        context = JXPathContext.newContext(mojoExecution);
    }

    public Iterator<?> getIteratorForXPathExpression(String expression) {
        return context.iterate(expression);
    }

    // prefer to use version 1.0.
    //
    // ----------------------------------------------------------------------

    @Test
    void testDependencyManagementOverridesTransitiveDependencyVersion() throws Exception {
        File localRepo = getLocalRepositoryPath();
        File pom0 = new File(localRepo, "p0/pom.xml");
        File pom0Basedir = pom0.getParentFile();
        File pom1 = new File(pom0Basedir, "p1/pom.xml");

    }

    /** {@inheritDoc} */
    @Override
    public ArtifactVersion getSelectedVersion() throws OverConstrainedVersionException {
        return artifact.getSelectedVersion();
    }

    /** {@inheritDoc} */
    @Override
    public boolean isSelectedVersionKnown() throws OverConstrainedVersionException {
        return artifact.isSelectedVersionKnown();
    }

    /** {@inheritDoc} */

    @Inject
    protected RepositorySystem system;

    @Inject
    protected PlexusContainer container;

    protected RepositorySystemSession session;

    @BeforeEach
    public void setUp() throws Exception {
        session = newMavenRepositorySystemSession(system);
    }

    protected PlexusContainer getContainer() {
        return container;
    }