// modelVersion is neither inherited nor injected
    @Test
    void testMergeModel_ModelVersion() {
        Model parent = Model.newBuilder().modelVersion("4.0.0").build();
        Model model = Model.newInstance();
        Model.Builder builder = Model.newBuilder(model);
        modelMerger.mergeModel_ModelVersion(builder, model, parent, false, null);

            }

            if (!model.isPreserveModelVersion()) {
                model = model.withPreserveModelVersion(false);
                String modelVersion = new MavenModelVersion().getModelVersion(model);
                model = model.withModelVersion(modelVersion);
            }
        } else if (BOM_PACKAGING.equals(packaging)) {
            DependencyManagement dependencyManagement =

        super(metadata, path, timestamp);
    }

    protected static Metadata createRepositoryMetadata(Artifact artifact) {
        return Metadata.newBuilder()
                .modelVersion("1.1.0")
                .groupId(artifact.getGroupId())
                .artifactId(artifact.getArtifactId())
                .version(artifact.getBaseVersion())
                .build();
    }

            // MNG-2199: What else to check here ?
        }

        return new ModelData(modelSource, parentModel);
    }

    private Model getSuperModel(String modelVersion) {
        return superPomProvider.getSuperPom(modelVersion);
    }

    private Model importDependencyManagement(
            Model model,
            ModelBuilderRequest request,
            DefaultModelProblemCollector problems,

        StringBuilder buffer = new StringBuilder(1024);

        buffer.append("<?xml version='1.0'?>");
        buffer.append("<project>");
        buffer.append("<modelVersion>4.0.0</modelVersion>");
        buffer.append("<groupId>").append(artifact.getGroupId()).append("</groupId>");
        buffer.append("<artifactId>").append(artifact.getArtifactId()).append("</artifactId>");

    }

    //
    // Infer modelVersion from namespace URI
    //
    void handleModelVersion(ModelTransformerContext context, Model model, Path pomFile, Model.Builder builder) {
        String namespace = model.getNamespaceUri();
        if (model.getModelVersion() == null && namespace != null && namespace.startsWith(NAMESPACE_PREFIX)) {
            builder.modelVersion(namespace.substring(NAMESPACE_PREFIX.length()));
        }

                .versioning(versioning)
                .groupId(artifact.getGroupId())
                .artifactId(artifact.getArtifactId())
                .version(artifact.getBaseVersion())
                .modelVersion("1.1.0")
                .build();
        return metadata;
    }

    public void bind(Artifact artifact) {
        artifacts.add(artifact);
    }

    @Deprecated
    @Override

                }
            }

            Severity errOn30 = getSeverity(request, ModelBuilderRequest.VALIDATION_LEVEL_MAVEN_3_0);

            // The file pom may not contain the modelVersion yet, as it may be set later by the
            // ModelVersionXMLFilter.
            if (m.getModelVersion() != null && !m.getModelVersion().isEmpty()) {

        testCompleteModel(pom);
    }

    private void testCompleteModel(PomTestWrapper pom) throws Exception {
        assertEquals("4.0.0", pom.getValue("modelVersion"));

        assertEquals("org.apache.maven.its.mng", pom.getValue("groupId"));
        assertEquals("test", pom.getValue("artifactId"));
        assertEquals("0.2", pom.getValue("version"));

    }

    private Model newTestModel() {
        Model model = new Model();
        model.setGroupId("modelGroup1");
        model.setArtifactId("modelArtifact1");
        model.setVersion("modelVersion1");

        return model;
    }

    @Test
    void testDebugEnabled() throws PlexusContainerException {
        Logger logger = mock(Logger.class);
        when(logger.isDebugEnabled()).thenReturn(true);