super();
    }

    @Test
    void testResolveParentThrowsUnresolvableModelExceptionWhenNotFound() throws Exception {
        final Parent parent = new Parent();
        parent.setGroupId("org.apache");
        parent.setArtifactId("apache");
        parent.setVersion("0");

        UnresolvableModelException e = assertThrows(
                UnresolvableModelException.class,

                "compile",
                "jar",
                null,
                new DefaultArtifactHandler("ignore"));
        PluginDescriptor descriptor = new PluginDescriptor();
        descriptor.setGroupId("org.apache.maven.its.plugins");
        descriptor.setArtifactId("maven-it-plugin");
        descriptor.setVersion("0.1");
        List<String> errors = new ArrayList<>();

        exclusion1.setArtifactId("*");

        Exclusion exclusion2 = new Exclusion();
        exclusion2.setGroupId("org.apache.maven");
        exclusion2.setArtifactId("maven-core");

        ExclusionArtifactFilter filter = new ExclusionArtifactFilter(Arrays.asList(exclusion1, exclusion2));

        assertFalse(filter.include(artifact), "Artifact should be excluded by multiple exclusions");
    }

    /**
     * Set the group ID of the extension's artifact.
     *
     * @param groupId a groupId object.
     */
    public void setGroupId(String groupId) {
        this.groupId = groupId;
    } // -- void setGroupId( String )

    /**
     * Set the version of the extension.
     *
     * @param version a version object.
     */
    public void setVersion(String version) {

        Plugin plugin = new Plugin();
        plugin.setGroupId(groupId);
        plugin.setArtifactId(artifactId);
        plugin.setVersion(version);
        return plugin;
    }

    private Extension createExtension(String groupId, String artifactId, String version) {
        Extension extension = new Extension();
        extension.setGroupId(groupId);
        extension.setArtifactId(artifactId);

                        + cause.getMessage(),
                cause);
        // Convert to old type
        CoreExtension oldExtension = new CoreExtension();
        oldExtension.setGroupId(extension.getGroupId());
        oldExtension.setArtifactId(extension.getArtifactId());
        oldExtension.setVersion(extension.getVersion());
        if (extension.getClassLoadingStrategy() != null) {

        result.setGroupId("org.apache");
        result.setArtifactId("A");
        result.setVersion("1.2");
        return result;
    }

    static Dependency toDependency(MavenProject mavenProject) {
        final Dependency dependency = new Dependency();
        dependency.setArtifactId(mavenProject.getArtifactId());
        dependency.setGroupId(mavenProject.getGroupId());

        MavenProject project = new MavenProject();
        project.setGroupId("test");
        project.setArtifactId(artifactId);
        return project;
    }

    private Dependency toDependency(MavenProject mavenProject) {
        Dependency dependency = new Dependency();
        dependency.setGroupId(mavenProject.getGroupId());
        dependency.setArtifactId(mavenProject.getArtifactId());

        Parent parent = new Parent();
        parent.setGroupId(parentProject.getGroupId());
        parent.setArtifactId(parentProject.getArtifactId());
        project.getModel().setParent(parent);
        return project;
    }

    private MavenProject getMavenProject(String artifactId) {
        MavenProject mavenProject = new MavenProject();
        mavenProject.setGroupId(GROUP_ID);
        mavenProject.setArtifactId(artifactId);

    }

    @Test
    void testDependencies() {
        DependencyManagement dm = new DependencyManagement();
        Dependency d1 = new Dependency();
        d1.setGroupId("myGroupId");
        assertNotNull(dm.getDependencies());
        assertEquals(0, dm.getDependencies().size());
        dm.addDependency(d1);
        assertNotNull(dm.getDependencies());